From 8934226bb2412a53b6560b4f5dc5ebac0dfdf35e Mon Sep 17 00:00:00 2001
From: terminx <terminx@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Sat, 25 Oct 2014 03:36:34 +0000
Subject: [PATCH] Another 5000 lines of pain and tears. DONT_BUILD.

git-svn-id: https://svn.eduke32.com/eduke32@4680 1a8010ca-5511-0410-912e-c29ae57300e0
---
 polymer/eduke32/build/include/build.h     |  36 +-
 polymer/eduke32/build/include/compat.h    |  19 +-
 polymer/eduke32/build/include/hightile.h  |   4 +-
 polymer/eduke32/build/include/libdivide.h |  18 +-
 polymer/eduke32/build/src/a-c.c           |   2 +-
 polymer/eduke32/build/src/cache1d.c       |   2 +-
 polymer/eduke32/build/src/defs.c          | 130 +++---
 polymer/eduke32/build/src/engine.c        |  78 +++-
 polymer/eduke32/build/src/hightile.c      |   4 +-
 polymer/eduke32/build/src/kplib.c         |   1 +
 polymer/eduke32/build/src/mdsprite.c      |  12 +-
 polymer/eduke32/build/src/polymer.c       |  16 +-
 polymer/eduke32/build/src/polymost.c      |  60 +--
 polymer/eduke32/source/actors.c           |  93 ++--
 polymer/eduke32/source/astub.c            |   4 +-
 polymer/eduke32/source/duke3d.h           |   9 -
 polymer/eduke32/source/game.c             |  46 +-
 polymer/eduke32/source/gamedef.c          | 515 +++++++++++-----------
 polymer/eduke32/source/gameexec.c         | 356 +++++++--------
 polymer/eduke32/source/gameexec.h         |  13 +-
 polymer/eduke32/source/gamestructures.c   |  57 +--
 polymer/eduke32/source/gamevars.c         | 282 ++++++------
 polymer/eduke32/source/gamevars.h         |   8 +-
 polymer/eduke32/source/menus.c            |   8 +-
 polymer/eduke32/source/osdcmds.c          |   3 +-
 polymer/eduke32/source/player.c           |  40 +-
 polymer/eduke32/source/premap.c           |   3 +-
 polymer/eduke32/source/sector.c           |   4 +-
 28 files changed, 943 insertions(+), 880 deletions(-)

diff --git a/polymer/eduke32/build/include/build.h b/polymer/eduke32/build/include/build.h
index f53c6f765..d42a124cf 100644
--- a/polymer/eduke32/build/include/build.h
+++ b/polymer/eduke32/build/include/build.h
@@ -622,7 +622,7 @@ typedef struct {
     uint32_t mdanimtims;
     int16_t mdanimcur;
     int16_t angoff, pitch, roll;
-    int32_t xoff, yoff, zoff;
+    vec3_t offset;
     uint8_t flags;
     uint8_t xpanning, ypanning;
     uint8_t filler;
@@ -705,36 +705,44 @@ static inline void yax_setnextwall(int16_t wal, int16_t cf, int16_t thenextwall)
 
 static inline void sector_tracker_hook(uintptr_t address)
 {
-    address -= (uintptr_t)(sector);
-    address /= sizeof(sectortype);
+    uintptr_t const usector = (uintptr_t) sector;
 
-    if (address > MAXSECTORS + M32_FIXME_SECTORS) return;
+    if (EDUKE32_PREDICT_FALSE((address - usector) >= (MAXSECTORS+M32_FIXME_SECTORS * sizeof(sectortype))))
+        return;
+
+    address = (address - usector);
+    address /= sizeof(sectortype);
 
     sectorchanged[address]++;
 }
 
 static inline void wall_tracker_hook(uintptr_t address)
 {
-    address -= (uintptr_t)(wall);
-    address /= sizeof(walltype);
+    uintptr_t const uwall = (uintptr_t) wall;
 
-    if (address > MAXWALLS + M32_FIXME_WALLS) return;
+    if (EDUKE32_PREDICT_FALSE((address - uwall) >= (MAXWALLS+M32_FIXME_WALLS * sizeof(walltype))))
+        return;
+
+    address = (address - uwall);
+    address /= sizeof(walltype);
 
     wallchanged[address]++;
 }
 
 static inline void sprite_tracker_hook(uintptr_t address)
 {
-    if (address >= (uintptr_t)(sprite) &&
-        address < (uintptr_t)(sprite) + MAXSPRITES * sizeof(spritetype))
-    {
-        address -= (uintptr_t)(sprite);
-        address /= sizeof(spritetype);
+    uintptr_t const usprite = (uintptr_t)sprite;
 
-        spritechanged[address]++;
-    }
+    if (EDUKE32_PREDICT_FALSE((address - usprite) >= (MAXSPRITES * sizeof(spritetype))))
+        return;
+
+    address = (address - usprite);
+    address /= sizeof(spritetype);
+
+    spritechanged[address]++;
 }
 
+
 EXTERN int16_t maskwall[MAXWALLSB], maskwallcnt;
 EXTERN int16_t thewall[MAXWALLSB];
 EXTERN spritetype *tspriteptr[MAXSPRITESONSCREEN + 1];
diff --git a/polymer/eduke32/build/include/compat.h b/polymer/eduke32/build/include/compat.h
index 2db4843b0..189da6cc5 100644
--- a/polymer/eduke32/build/include/compat.h
+++ b/polymer/eduke32/build/include/compat.h
@@ -37,6 +37,20 @@
 # define ATTRIBUTE_OPTIMIZE(str)
 #endif
 
+#if defined __GNUC__ || defined __clang__
+#define EDUKE32_PREDICT_TRUE(x)       __builtin_expect(!!(x),1)
+#define EDUKE32_PREDICT_FALSE(x)     __builtin_expect(!!(x),0)
+#define EDUKE32_UNREACHABLE_SECTION(...)   __builtin_unreachable()
+#elif _MSC_VER
+#define EDUKE32_PREDICT_TRUE(x) (x)
+#define EDUKE32_PREDICT_FALSE(x) (x)
+#define EDUKE32_UNREACHABLE_SECTION(...)   __assume(0)
+#else 
+#define EDUKE32_PREDICT_TRUE(x) (x)
+#define EDUKE32_PREDICT_FALSE(x) (x)
+#define EDUKE32_UNREACHABLE_SECTION(...) __VA_ARGS__
+#endif
+
 #ifndef min
 #define min(x,y) ((x) < (y) ? (x) : (y))
 #endif
@@ -150,11 +164,6 @@
 
 #endif
 
-#include <math.h>
-static inline long lround(double num)
-{
-    return (long) (num > 0 ? num + 0.5 : ceil(num - 0.5));
-}
 #else
 # define longlong(x) x##ll
 #endif
diff --git a/polymer/eduke32/build/include/hightile.h b/polymer/eduke32/build/include/hightile.h
index e9db8fed2..a7b3c8956 100644
--- a/polymer/eduke32/build/include/hightile.h
+++ b/polymer/eduke32/build/include/hightile.h
@@ -9,9 +9,9 @@ typedef struct hicreplc_t {
     struct hicreplc_t *next;
     char *filename;
     struct hicskybox_t *skybox;
+    vec2f_t scale;
+    float alphacut, specpower, specfactor;
     char palnum, flags;
-    short filler;
-    float alphacut, xscale, yscale, specpower, specfactor;
 } hicreplctyp;
 
 extern palette_t hictinting[MAXPALOOKUPS];
diff --git a/polymer/eduke32/build/include/libdivide.h b/polymer/eduke32/build/include/libdivide.h
index 10683aa39..429904ce9 100644
--- a/polymer/eduke32/build/include/libdivide.h
+++ b/polymer/eduke32/build/include/libdivide.h
@@ -463,14 +463,14 @@ static uint64_t libdivide_128_div_64_to_64(uint64_t u1, uint64_t u0, uint64_t v,
     rhat;            // A remainder.
     int s;                  // Shift amount for norm.
     
-    if (u1 >= v) {            // If overflow, set rem.
+    if (EDUKE32_PREDICT_FALSE(u1 >= v)) {            // If overflow, set rem.
         if (r != NULL)         // to an impossible value,
             *r = (uint64_t)(-1);    // and return the largest
         return (uint64_t)(-1);}    // possible quotient.
     
     /* count leading zeros */
     s = libdivide__count_leading_zeros64(v); // 0 <= s <= 63.
-    if (s > 0) {
+    if (EDUKE32_PREDICT_TRUE(s > 0)) {
         v = v << s;           // Normalize divisor.
         un64 = (u1 << s) | ((u0 >> (64 - s)) & (-s >> 31));
         un10 = u0 << s;       // Shift dividend left.
@@ -520,7 +520,7 @@ again2:
 
 libdivide_u32_t libdivide_u32_gen(uint32_t d) {
     libdivide_u32_t result;
-    if ((d & (d - 1)) == 0) {
+    if (EDUKE32_PREDICT_FALSE((d & (d - 1)) == 0)) {
         result.magic = 0;
         result.more = libdivide__count_trailing_zeros32(d) | LIBDIVIDE_U32_SHIFT_PATH;
     }
@@ -555,7 +555,7 @@ libdivide_u32_t libdivide_u32_gen(uint32_t d) {
 
 uint32_t libdivide_u32_do(uint32_t numer, const libdivide_u32_t *denom) {
     uint8_t more = denom->more;
-    if (more & LIBDIVIDE_U32_SHIFT_PATH) {
+    if (EDUKE32_PREDICT_FALSE(more & LIBDIVIDE_U32_SHIFT_PATH)) {
         return numer >> (more & LIBDIVIDE_32_SHIFT_MASK);
     }
     else {
@@ -640,7 +640,7 @@ __m128i libdivide_u32_do_vector_alg2(__m128i numers, const libdivide_u32_t *deno
 
 libdivide_u64_t libdivide_u64_gen(uint64_t d) {
     libdivide_u64_t result;
-    if ((d & (d - 1)) == 0) {
+    if (EDUKE32_PREDICT_FALSE((d & (d - 1)) == 0)) {
         result.more = libdivide__count_trailing_zeros64(d) | LIBDIVIDE_U64_SHIFT_PATH;
         result.magic = 0;
     }
@@ -674,7 +674,7 @@ libdivide_u64_t libdivide_u64_gen(uint64_t d) {
 
 uint64_t libdivide_u64_do(uint64_t numer, const libdivide_u64_t *denom) {
     uint8_t more = denom->more;
-    if (more & LIBDIVIDE_U64_SHIFT_PATH) {
+    if (EDUKE32_PREDICT_FALSE(more & LIBDIVIDE_U64_SHIFT_PATH)) {
         return numer >> (more & LIBDIVIDE_64_SHIFT_MASK);
     }
     else {
@@ -692,7 +692,7 @@ uint64_t libdivide_u64_do(uint64_t numer, const libdivide_u64_t *denom) {
  
 int libdivide_u64_get_algorithm(const libdivide_u64_t *denom) {
     uint8_t more = denom->more;
-    if (more & LIBDIVIDE_U64_SHIFT_PATH) return 0;
+    if (EDUKE32_PREDICT_FALSE(more & LIBDIVIDE_U64_SHIFT_PATH)) return 0;
     else if (! (more & LIBDIVIDE_ADD_MARKER)) return 1;
     else return 2;
 }
@@ -765,7 +765,7 @@ libdivide_s32_t libdivide_s32_gen(int32_t d) {
     
     /* If d is a power of 2, or negative a power of 2, we have to use a shift.  This is especially important because the magic algorithm fails for -1.  To check if d is a power of 2 or its inverse, it suffices to check whether its absolute value has exactly one bit set.  This works even for INT_MIN, because abs(INT_MIN) == INT_MIN, and INT_MIN has one bit set and is a power of 2.  */
     uint32_t absD = (uint32_t)(d < 0 ? -d : d); //gcc optimizes this to the fast abs trick
-    if ((absD & (absD - 1)) == 0) { //check if exactly one bit is set, don't care if absD is 0 since that's divide by zero
+    if (EDUKE32_PREDICT_FALSE((absD & (absD - 1)) == 0)) { //check if exactly one bit is set, don't care if absD is 0 since that's divide by zero
         result.magic = 0;
         result.more = libdivide__count_trailing_zeros32(absD) | (d < 0 ? LIBDIVIDE_NEGATIVE_DIVISOR : 0) | LIBDIVIDE_S32_SHIFT_PATH;
     }
@@ -932,7 +932,7 @@ libdivide_s64_t libdivide_s64_gen(int64_t d) {
     
     /* If d is a power of 2, or negative a power of 2, we have to use a shift.  This is especially important because the magic algorithm fails for -1.  To check if d is a power of 2 or its inverse, it suffices to check whether its absolute value has exactly one bit set.  This works even for INT_MIN, because abs(INT_MIN) == INT_MIN, and INT_MIN has one bit set and is a power of 2.  */
     const uint64_t absD = (uint64_t)(d < 0 ? -d : d); //gcc optimizes this to the fast abs trick
-    if ((absD & (absD - 1)) == 0) { //check if exactly one bit is set, don't care if absD is 0 since that's divide by zero
+    if (EDUKE32_PREDICT_FALSE((absD & (absD - 1)) == 0)) { //check if exactly one bit is set, don't care if absD is 0 since that's divide by zero
         result.more = libdivide__count_trailing_zeros64(absD) | (d < 0 ? LIBDIVIDE_NEGATIVE_DIVISOR : 0);
         result.magic = 0;
     }
diff --git a/polymer/eduke32/build/src/a-c.c b/polymer/eduke32/build/src/a-c.c
index 7a8ed3f8a..eceb6b120 100644
--- a/polymer/eduke32/build/src/a-c.c
+++ b/polymer/eduke32/build/src/a-c.c
@@ -265,7 +265,7 @@ void vlineasm4(int32_t cnt, char *p)
 #endif
     const int32_t logy = glogy, ourbpl = bpl;
 
-    if (!logy) // I had an assert on logy for quite a while that NEVER triggered...
+    if (EDUKE32_PREDICT_FALSE(!logy)) // I had an assert on logy for quite a while that NEVER triggered...
     {
         vlineasm4nlogy(cnt, p, pal, buf, vplc, vinc);
         return;
diff --git a/polymer/eduke32/build/src/cache1d.c b/polymer/eduke32/build/src/cache1d.c
index 364c4730d..89190c409 100644
--- a/polymer/eduke32/build/src/cache1d.c
+++ b/polymer/eduke32/build/src/cache1d.c
@@ -558,7 +558,7 @@ int32_t findfrompath(const char *fn, char **where)
     return -1;
 }
 
-#ifdef _WIN32
+#if defined(_WIN32) && defined(DEBUGGINGAIDS)
 # define FILENAME_CASE_CHECK
 #endif
 
diff --git a/polymer/eduke32/build/src/defs.c b/polymer/eduke32/build/src/defs.c
index 2be14bb68..f5b8f38d0 100644
--- a/polymer/eduke32/build/src/defs.c
+++ b/polymer/eduke32/build/src/defs.c
@@ -115,7 +115,7 @@ static void defsparser_include(const char *fn, const scriptfile *script, const c
     scriptfile *included;
 
     included = scriptfile_fromfile(fn);
-    if (!included)
+    if (EDUKE32_PREDICT_FALSE(!included))
     {
         if (!cmdtokptr)
             initprintf("Warning: Failed including %s as module\n", fn);
@@ -141,14 +141,14 @@ static void defsparser_include(const char *fn, const scriptfile *script, const c
 static int32_t check_tile_range(const char *defcmd, int32_t *tilebeg, int32_t *tileend,
                                 const scriptfile *script, const char *cmdtokptr)
 {
-    if (*tileend < *tilebeg)
+    if (EDUKE32_PREDICT_FALSE(*tileend < *tilebeg))
     {
         initprintf("Warning: %s: backwards tile range on line %s:%d\n", defcmd,
                    script->filename, scriptfile_getlinum(script,cmdtokptr));
         swaplong(tilebeg, tileend);
     }
 
-    if ((unsigned)*tilebeg >= MAXUSERTILES || (unsigned)*tileend >= MAXUSERTILES)
+    if (EDUKE32_PREDICT_FALSE((unsigned)*tilebeg >= MAXUSERTILES || (unsigned)*tileend >= MAXUSERTILES))
     {
         initprintf("Error: %s: Invalid tile range on line %s:%d\n", defcmd,
                    script->filename, scriptfile_getlinum(script,cmdtokptr));
@@ -161,7 +161,7 @@ static int32_t check_tile_range(const char *defcmd, int32_t *tilebeg, int32_t *t
 static int32_t check_tile(const char *defcmd, int32_t tile, const scriptfile *script,
                           const char *cmdtokptr)
 {
-    if ((unsigned)tile >= MAXUSERTILES)
+    if (EDUKE32_PREDICT_FALSE((unsigned)tile >= MAXUSERTILES))
     {
         initprintf("Error: %s: Invalid tile number on line %s:%d\n", defcmd,
                    script->filename, scriptfile_getlinum(script,cmdtokptr));
@@ -171,6 +171,8 @@ static int32_t check_tile(const char *defcmd, int32_t tile, const scriptfile *sc
     return 0;
 }
 
+extern void getclosestcol_flush(void);
+
 static void tile_from_truecolpic(int32_t tile, const palette_t *picptr, int32_t alphacut)
 {
     const vec2_t siz = tilesiz[tile];
@@ -182,6 +184,8 @@ static void tile_from_truecolpic(int32_t tile, const palette_t *picptr, int32_t
         faketilebuffersiz = tsiz;
     }
 
+    getclosestcol_flush();
+
     faketiledata[tile] = (char *)Xmalloc(tsiz + 32);
 
     for (i=siz.x-1; i>=0; i--)
@@ -315,7 +319,7 @@ static int32_t defsparser(scriptfile *script)
             if (scriptfile_getstring(script,&name)) break;
             if (scriptfile_getsymbol(script,&number)) break;
 
-            if (scriptfile_addsymbolvalue(name,number) < 0)
+            if (EDUKE32_PREDICT_FALSE(scriptfile_addsymbolvalue(name,number) < 0))
                 initprintf("Warning: Symbol %s was NOT redefined to %d on line %s:%d\n",
                            name,number,script->filename,scriptfile_getlinum(script,cmdtokptr));
             break;
@@ -526,7 +530,7 @@ static int32_t defsparser(scriptfile *script)
             if (check_tile_range("animtilerange", &tile1, &tile2, script, cmdtokptr))
                 break;
 
-            if (tile2-tile1 > 255)
+            if (EDUKE32_PREDICT_FALSE(tile2-tile1 > 255))
             {
                 initprintf("Error: animtilerange: tile difference can be at most 255 on line %s:%d\n",
                            script->filename, scriptfile_getlinum(script,cmdtokptr));
@@ -534,7 +538,7 @@ static int32_t defsparser(scriptfile *script)
             }
 
             spd = clamp(spd, 0, 15);
-            if (type&~3)
+            if (EDUKE32_PREDICT_FALSE(type&~3))
             {
                 initprintf("Error: animtilerange: animation type must be 0, 1, 2 or 3 on line %s:%d\n",
                            script->filename, scriptfile_getlinum(script,cmdtokptr));
@@ -600,7 +604,7 @@ static int32_t defsparser(scriptfile *script)
                 }
             }
 
-            if ((unsigned)tile >= MAXUSERTILES)
+            if (EDUKE32_PREDICT_FALSE((unsigned)tile >= MAXUSERTILES))
             {
                 initprintf("Error: missing or invalid 'tile number' for texture definition near line %s:%d\n",
                            script->filename, scriptfile_getlinum(script,texturetokptr));
@@ -616,7 +620,7 @@ static int32_t defsparser(scriptfile *script)
                 if (haveyoffset)
                     picanm[tile].yofs = clamp(yoffset, -128, 127);
 
-                if (flags == 0 && !havexoffset && !haveyoffset)
+                if (EDUKE32_PREDICT_FALSE(flags == 0 && !havexoffset && !haveyoffset))
                     initprintf("\nError: missing 'file name' for tilefromtexture definition near line %s:%d",
                                script->filename, scriptfile_getlinum(script,texturetokptr));
                 break;
@@ -735,7 +739,7 @@ static int32_t defsparser(scriptfile *script)
 
 #ifdef USE_OPENGL
             lastmodelid = md_loadmodel(modelfn);
-            if (lastmodelid < 0)
+            if (EDUKE32_PREDICT_FALSE(lastmodelid < 0))
             {
                 initprintf("Warning: Failed loading MD2/MD3 model \"%s\"\n", modelfn);
                 break;
@@ -766,7 +770,7 @@ static int32_t defsparser(scriptfile *script)
             if (check_tile_range("definemodelframe", &ftilenume, &ltilenume, script, cmdtokptr))
                 break;
 
-            if (lastmodelid < 0)
+            if (EDUKE32_PREDICT_FALSE(lastmodelid < 0))
             {
 #ifdef USE_OPENGL
                 initprintf("Warning: Ignoring frame definition.\n");
@@ -809,7 +813,7 @@ static int32_t defsparser(scriptfile *script)
             if (scriptfile_getdouble(script,&dfps)) break; //animation frame rate
             if (scriptfile_getnumber(script,&flags)) break;
 
-            if (lastmodelid < 0)
+            if (EDUKE32_PREDICT_FALSE(lastmodelid < 0))
             {
 #ifdef USE_OPENGL
                 initprintf("Warning: Ignoring animation definition.\n");
@@ -899,13 +903,13 @@ static int32_t defsparser(scriptfile *script)
 
             if (scriptfile_getstring(script,&fn)) break; //voxel filename
 
-            if (nextvoxid == MAXVOXELS)
+            if (EDUKE32_PREDICT_FALSE(nextvoxid == MAXVOXELS))
             {
                 initprintf("Maximum number of voxels already defined.\n");
                 break;
             }
 
-            if (qloadkvx(nextvoxid, fn))
+            if (EDUKE32_PREDICT_FALSE(qloadkvx(nextvoxid, fn)))
             {
                 initprintf("Failure loading voxel file \"%s\"\n",fn);
                 break;
@@ -924,7 +928,7 @@ static int32_t defsparser(scriptfile *script)
             if (check_tile_range("definevoxeltiles", &ftilenume, &ltilenume, script, cmdtokptr))
                 break;
 
-            if (lastvoxid < 0)
+            if (EDUKE32_PREDICT_FALSE(lastvoxid < 0))
             {
                 initprintf("Warning: Ignoring voxel tiles definition.\n");
                 break;
@@ -971,7 +975,7 @@ static int32_t defsparser(scriptfile *script)
             if (scriptfile_getbraces(script,&modelend)) break;
 #ifdef USE_OPENGL
             lastmodelid = md_loadmodel(modelfn);
-            if (lastmodelid < 0)
+            if (EDUKE32_PREDICT_FALSE(lastmodelid < 0))
             {
                 initprintf("Warning: Failed loading MD2/MD3 model \"%s\"\n", modelfn);
                 script->textptr = modelend+1;
@@ -1042,7 +1046,7 @@ static int32_t defsparser(scriptfile *script)
                         break;
                     }
 
-                    if (lastmodelid < 0)
+                    if (EDUKE32_PREDICT_FALSE(lastmodelid < 0))
                     {
 #ifdef USE_OPENGL
                         initprintf("Warning: Ignoring frame definition.\n");
@@ -1109,12 +1113,12 @@ static int32_t defsparser(scriptfile *script)
                         }
                     }
 
-                    if (!startframe) initprintf("Error: missing 'start frame' for anim definition near line %s:%d\n", script->filename, scriptfile_getlinum(script,animtokptr)), happy = 0;
-                    if (!endframe) initprintf("Error: missing 'end frame' for anim definition near line %s:%d\n", script->filename, scriptfile_getlinum(script,animtokptr)), happy = 0;
+                    if (EDUKE32_PREDICT_FALSE(!startframe)) initprintf("Error: missing 'start frame' for anim definition near line %s:%d\n", script->filename, scriptfile_getlinum(script,animtokptr)), happy = 0;
+                    if (EDUKE32_PREDICT_FALSE(!endframe)) initprintf("Error: missing 'end frame' for anim definition near line %s:%d\n", script->filename, scriptfile_getlinum(script,animtokptr)), happy = 0;
                     model_ok &= happy;
-                    if (!happy) break;
+                    if (EDUKE32_PREDICT_FALSE(!happy)) break;
 
-                    if (lastmodelid < 0)
+                    if (EDUKE32_PREDICT_FALSE(lastmodelid < 0))
                     {
 #ifdef USE_OPENGL
                         initprintf("Warning: Ignoring animation definition.\n");
@@ -1187,7 +1191,7 @@ static int32_t defsparser(scriptfile *script)
                         }
                     }
 
-                    if (!skinfn)
+                    if (EDUKE32_PREDICT_FALSE(!skinfn))
                     {
                         initprintf("Error: missing 'skin filename' for skin definition near line %s:%d\n", script->filename, scriptfile_getlinum(script,skintokptr));
                         model_ok = 0;
@@ -1302,13 +1306,13 @@ static int32_t defsparser(scriptfile *script)
                         }
                     }
 
-                    if (check_tile_range("hud", &ftilenume, &ltilenume, script, hudtokptr))
+                    if (EDUKE32_PREDICT_FALSE(check_tile_range("hud", &ftilenume, &ltilenume, script, hudtokptr)))
                     {
                         model_ok = 0;
                         break;
                     }
 
-                    if (lastmodelid < 0)
+                    if (EDUKE32_PREDICT_FALSE(lastmodelid < 0))
                     {
 #ifdef USE_OPENGL
                         initprintf("Warning: Ignoring frame definition.\n");
@@ -1345,7 +1349,7 @@ static int32_t defsparser(scriptfile *script)
             }
 
 #ifdef USE_OPENGL
-            if (!model_ok)
+            if (EDUKE32_PREDICT_FALSE(!model_ok))
             {
                 if (lastmodelid >= 0)
                 {
@@ -1402,9 +1406,9 @@ static int32_t defsparser(scriptfile *script)
                 { "scale",  T_SCALE  },
             };
 
-            if (scriptfile_getstring(script,&fn)) break; //voxel filename
-            if (nextvoxid == MAXVOXELS) { initprintf("Maximum number of voxels already defined.\n"); break; }
-            if (qloadkvx(nextvoxid, fn)) { initprintf("Failure loading voxel file \"%s\"\n",fn); break; }
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getstring(script,&fn))) break; //voxel filename
+            if (EDUKE32_PREDICT_FALSE(nextvoxid == MAXVOXELS)) { initprintf("Maximum number of voxels already defined.\n"); break; }
+            if (EDUKE32_PREDICT_FALSE(qloadkvx(nextvoxid, fn))) { initprintf("Failure loading voxel file \"%s\"\n",fn); break; }
             lastvoxid = nextvoxid++;
 
             if (scriptfile_getbraces(script,&modelend)) break;
@@ -1496,10 +1500,10 @@ static int32_t defsparser(scriptfile *script)
                 }
             }
 
-            if (tile < 0) initprintf("Error: skybox: missing 'tile number' near line %s:%d\n", script->filename, scriptfile_getlinum(script,skyboxtokptr)), happy=0;
+            if (EDUKE32_PREDICT_FALSE(tile < 0)) initprintf("Error: skybox: missing 'tile number' near line %s:%d\n", script->filename, scriptfile_getlinum(script,skyboxtokptr)), happy=0;
             for (i=0; i<6; i++)
             {
-                if (!fn[i]) initprintf("Error: skybox: missing '%s filename' near line %s:%d\n", skyfaces[i], script->filename, scriptfile_getlinum(script,skyboxtokptr)), happy = 0;
+                if (EDUKE32_PREDICT_FALSE(!fn[i])) initprintf("Error: skybox: missing '%s filename' near line %s:%d\n", skyfaces[i], script->filename, scriptfile_getlinum(script,skyboxtokptr)), happy = 0;
                 // FIXME?
                 if (check_file_exist(fn[i]))
                     happy = 0;
@@ -1541,21 +1545,21 @@ static int32_t defsparser(scriptfile *script)
                     scriptfile_getstring(script,&fn); break;
                 }
             }
-            if ((unsigned)basepal >= ((unsigned)basepalcount))
+            if (EDUKE32_PREDICT_FALSE((unsigned)basepal >= ((unsigned)basepalcount)))
             {
                 initprintf("Error: missing or invalid 'base palette number' for highpalookup definition "
                            "near line %s:%d\n", script->filename, scriptfile_getlinum(script,highpaltokptr));
                 break;
             }
 
-            if ((unsigned)pal >= MAXPALOOKUPS - RESERVEDPALS)
+            if (EDUKE32_PREDICT_FALSE((unsigned)pal >= MAXPALOOKUPS - RESERVEDPALS))
             {
                 initprintf("Error: missing or invalid 'palette number' for highpalookup definition near "
                            "line %s:%d\n", script->filename, scriptfile_getlinum(script,highpaltokptr));
                 break;
             }
 
-            if (!fn)
+            if (EDUKE32_PREDICT_FALSE(!fn))
             {
                 initprintf("Error: missing 'file name' for highpalookup definition near line %s:%d\n",
                            script->filename, scriptfile_getlinum(script,highpaltokptr));
@@ -1586,7 +1590,7 @@ static int32_t defsparser(scriptfile *script)
                 kclose(fd);
                 kpgetdim(filebuf, filesize, &xsiz, &ysiz);
 
-                if (xsiz != PR_HIGHPALOOKUP_DIM*PR_HIGHPALOOKUP_DIM || ysiz != PR_HIGHPALOOKUP_DIM)
+                if (EDUKE32_PREDICT_FALSE(xsiz != PR_HIGHPALOOKUP_DIM*PR_HIGHPALOOKUP_DIM || ysiz != PR_HIGHPALOOKUP_DIM))
                 {
                     initprintf("Error: image dimensions of \"%s\" must be %dx%d.\n",
                                fn, PR_HIGHPALOOKUP_DIM*PR_HIGHPALOOKUP_DIM, PR_HIGHPALOOKUP_DIM);
@@ -1596,7 +1600,7 @@ static int32_t defsparser(scriptfile *script)
 
                 i = kprender(filebuf, filesize, (intptr_t)highpaldata, xsiz*sizeof(coltype), xsiz, ysiz);
                 Bfree(filebuf);
-                if (i)
+                if (EDUKE32_PREDICT_FALSE(i))
                     { Bfree(highpaldata); initprintf("Error: failed rendering \"%s\".\n", fn); break; }
             }
 
@@ -1639,7 +1643,7 @@ static int32_t defsparser(scriptfile *script)
                 }
             }
 
-            if (pal < 0)
+            if (EDUKE32_PREDICT_FALSE(pal < 0))
             {
                 initprintf("Error: tint: missing 'palette number' near line %s:%d\n",
                            script->filename, scriptfile_getlinum(script,tinttokptr));
@@ -1709,24 +1713,24 @@ static int32_t defsparser(scriptfile *script)
                 Bsprintf(msgend, "for palookup definition near line %s:%d",
                          script->filename, scriptfile_getlinum(script,starttokptr));
 
-                if ((havepal&1)==0)
+                if (EDUKE32_PREDICT_FALSE((havepal&1)==0))
                 {
                     initprintf("Error: missing 'palette number' %s\n", msgend);
                     break;
                 }
-                else if (pal==0 || (unsigned)pal >= MAXPALOOKUPS-RESERVEDPALS)
+                else if (EDUKE32_PREDICT_FALSE(pal==0 || (unsigned)pal >= MAXPALOOKUPS-RESERVEDPALS))
                 {
                     initprintf("Error: 'palette number' out of range (1 .. %d) %s\n",
                                MAXPALOOKUPS-RESERVEDPALS-1, msgend);
                     break;
                 }
-                else if (havepal&8)
+                else if (EDUKE32_PREDICT_FALSE(havepal&8))
                 {
                     // will also disallow multiple remappals or remapselfs
                     initprintf("Error: must have exactly one of either 'remappal' or 'remapself' %s\n", msgend);
                     break;
                 }
-                else if ((havepal&4) && (unsigned)remappal >= MAXPALOOKUPS-RESERVEDPALS)
+                else if (EDUKE32_PREDICT_FALSE((havepal&4) && (unsigned)remappal >= MAXPALOOKUPS-RESERVEDPALS))
                 {
                     initprintf("Error: 'remap palette number' out of range (max=%d) %s\n",
                                MAXPALOOKUPS-RESERVEDPALS-1, msgend);
@@ -1821,21 +1825,21 @@ static int32_t defsparser(scriptfile *script)
                         }
                     }
 
-                    if ((unsigned)tile >= MAXUSERTILES) break;	// message is printed later
-                    if ((unsigned)pal >= MAXPALOOKUPS - RESERVEDPALS)
+                    if (EDUKE32_PREDICT_FALSE((unsigned)tile >= MAXUSERTILES)) break;	// message is printed later
+                    if (EDUKE32_PREDICT_FALSE((unsigned)pal >= MAXPALOOKUPS - RESERVEDPALS))
                     {
                         initprintf("Error: missing or invalid 'palette number' for texture definition near "
                                    "line %s:%d\n", script->filename, scriptfile_getlinum(script,paltokptr));
                         break;
                     }
-                    if (!fn)
+                    if (EDUKE32_PREDICT_FALSE(!fn))
                     {
                         initprintf("Error: missing 'file name' for texture definition near line %s:%d\n",
                                    script->filename, scriptfile_getlinum(script,paltokptr));
                         break;
                     }
 
-                    if (check_file_exist(fn))
+                    if (EDUKE32_PREDICT_FALSE(check_file_exist(fn)))
                         break;
 
                     if (xsiz > 0 && ysiz > 0)
@@ -1874,7 +1878,7 @@ static int32_t defsparser(scriptfile *script)
                         { "nodownsize",      T_NODOWNSIZE },
                     };
 
-                    if (scriptfile_getbraces(script,&detailend)) break;
+                    if (EDUKE32_PREDICT_FALSE(scriptfile_getbraces(script,&detailend))) break;
                     while (script->textptr < detailend)
                     {
                         switch (getatoken(script,texturetokens_pal,ARRAY_SIZE(texturetokens_pal)))
@@ -1900,15 +1904,15 @@ static int32_t defsparser(scriptfile *script)
                         }
                     }
 
-                    if ((unsigned)tile >= MAXUSERTILES) break;	// message is printed later
-                    if (!fn)
+                    if (EDUKE32_PREDICT_FALSE((unsigned)tile >= MAXUSERTILES)) break;	// message is printed later
+                    if (EDUKE32_PREDICT_FALSE(!fn))
                     {
                         initprintf("Error: missing 'file name' for texture definition near line %s:%d\n",
                                    script->filename, scriptfile_getlinum(script,detailtokptr));
                         break;
                     }
 
-                    if (check_file_exist(fn))
+                    if (EDUKE32_PREDICT_FALSE(check_file_exist(fn)))
                         break;
 
 #ifdef USE_OPENGL
@@ -1937,7 +1941,7 @@ static int32_t defsparser(scriptfile *script)
                     break;
                 }
             }
-            if ((unsigned)tile >= MAXUSERTILES)
+            if (EDUKE32_PREDICT_FALSE((unsigned)tile >= MAXUSERTILES))
             {
                 initprintf("Error: missing or invalid 'tile number' for texture definition near line %s:%d\n",
                            script->filename, scriptfile_getlinum(script,texturetokptr));
@@ -1951,7 +1955,7 @@ static int32_t defsparser(scriptfile *script)
         {
             int32_t r0,r1;
 
-            if (scriptfile_getsymbol(script,&r0)) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getsymbol(script,&r0))) break;
             if (tokn == T_UNDEFMODELRANGE)
             {
                 if (scriptfile_getsymbol(script,&r1)) break;
@@ -1980,7 +1984,7 @@ static int32_t defsparser(scriptfile *script)
             int32_t mid;
 #endif
 
-            if (scriptfile_getsymbol(script,&r0)) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getsymbol(script,&r0))) break;
 
             if (check_tile("undefmodelof", r0, script, cmdtokptr))
                 break;
@@ -2006,19 +2010,19 @@ static int32_t defsparser(scriptfile *script)
             int32_t i;
 #endif
 
-            if (scriptfile_getsymbol(script,&r0)) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getsymbol(script,&r0))) break;
             if (tokn == T_UNDEFTEXTURERANGE)
             {
-                if (scriptfile_getsymbol(script,&r1)) break;
+                if (EDUKE32_PREDICT_FALSE(scriptfile_getsymbol(script,&r1))) break;
 
-                if (check_tile_range("undeftexturerange", &r0, &r1, script, cmdtokptr))
+                if (EDUKE32_PREDICT_FALSE(check_tile_range("undeftexturerange", &r0, &r1, script, cmdtokptr)))
                     break;
             }
             else
             {
                 r1 = r0;
 
-                if (check_tile("undeftexture", r0, script, cmdtokptr))
+                if (EDUKE32_PREDICT_FALSE(check_tile("undeftexture", r0, script, cmdtokptr)))
                     break;
             }
 
@@ -2036,8 +2040,8 @@ static int32_t defsparser(scriptfile *script)
 
             static const tokenlist dummytokens[] = { { "id",   T_ID  }, };
 
-            if (scriptfile_getstring(script, &dummy)) break;
-            if (scriptfile_getbraces(script,&dummy)) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getstring(script, &dummy))) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getbraces(script,&dummy))) break;
             while (script->textptr < dummy)
             {
                 // XXX?
@@ -2050,8 +2054,8 @@ static int32_t defsparser(scriptfile *script)
         {
             int32_t b,e;
 
-            if (scriptfile_getnumber(script,&b)) break;
-            if (scriptfile_getnumber(script,&e)) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getnumber(script,&b))) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getnumber(script,&e))) break;
         }
         break;
 
@@ -2060,8 +2064,8 @@ static int32_t defsparser(scriptfile *script)
         {
             int32_t b,e, i;
 
-            if (scriptfile_getnumber(script,&b)) break;
-            if (scriptfile_getnumber(script,&e)) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getnumber(script,&b))) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getnumber(script,&e))) break;
 
             b = max(b, 0);
             e = min(e, MAXUSERTILES-1);
@@ -2082,7 +2086,7 @@ static int32_t defsparser(scriptfile *script)
                 { "file", T_FILE },
             };
 
-            if (scriptfile_getbraces(script,&dummy)) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getbraces(script,&dummy))) break;
             while (script->textptr < dummy)
             {
                 switch (getatoken(script,sound_musictokens,ARRAY_SIZE(sound_musictokens)))
@@ -2109,7 +2113,7 @@ static int32_t defsparser(scriptfile *script)
                 { "mhkfile",    T_MHKFILE },
             };
 
-            if (scriptfile_getbraces(script,&dummy)) break;
+            if (EDUKE32_PREDICT_FALSE(scriptfile_getbraces(script,&dummy))) break;
             while (script->textptr < dummy)
             {
                 switch (getatoken(script,mapinfotokens,ARRAY_SIZE(mapinfotokens)))
diff --git a/polymer/eduke32/build/src/engine.c b/polymer/eduke32/build/src/engine.c
index d8351290d..bfd548a8c 100644
--- a/polymer/eduke32/build/src/engine.c
+++ b/polymer/eduke32/build/src/engine.c
@@ -2789,7 +2789,7 @@ static void maskwallscan(int32_t x1, int32_t x2, int32_t saturatevplc)
 
     tweak_tsizes(&tsiz);
 
-    if (palookup[globalpal] == NULL)
+    if (EDUKE32_PREDICT_FALSE(palookup[globalpal] == NULL))
         globalpal = 0;
 
     fpalookup = FP_OFF(palookup[globalpal]);
@@ -5684,7 +5684,7 @@ draw_as_face_sprite:
         xsiz = mulscale30(siz,xv*xspan);
         ysiz = mulscale14(siz,tspr->yrepeat*yspan);
 
-        if ((tilesiz[tilenum].x>>11) >= xsiz || yspan >= (ysiz>>1))
+        if (EDUKE32_PREDICT_FALSE((tilesiz[tilenum].x>>11) >= xsiz || yspan >= (ysiz>>1)))
             return;  //Watch out for divscale overflow
 
         x1 = xb-(xsiz>>1);
@@ -6966,11 +6966,11 @@ static inline int32_t addscaleclamp(int32_t a, int32_t b, int32_t s1, int32_t s2
     // a + scale(b, s1, s1-s2), but without arithmetic exception when the
     // scale() expression overflows
 
-    int64_t tmp = (int64_t)a + ((int64_t)b*s1)/(s1-s2);
+    int64_t tmp = (int64_t)a + tabledivide64((int64_t)b*s1, s1-s2);
 
-    if (tmp <= INT32_MIN+1)
+    if (EDUKE32_PREDICT_FALSE(tmp <= INT32_MIN+1))
         return INT32_MIN+1;
-    if (tmp >= INT32_MAX)
+    if (EDUKE32_PREDICT_FALSE(tmp >= INT32_MAX))
         return INT32_MAX;
     return tmp;
 }
@@ -8353,24 +8353,67 @@ void fillemptylookups(void)
             makepalookup(j, NULL, 0,0,0, 1);
 }
 
+#define COLRESULTSIZ 4096
+
+#define COLRESULT(x) do {  } while (0)
+
+static uint32_t getclosestcol_results[COLRESULTSIZ];
+static int32_t numclosestcolresults;
+
+void getclosestcol_flush(void)
+{
+    Bmemset(getclosestcol_results, 0, COLRESULTSIZ * sizeof(uint32_t));
+    numclosestcolresults = 0;
+}
+
 // Finds a color index in [0 .. lastokcol] closest to (r, g, b).
 // <lastokcol> must be in [0 .. 255].
 int32_t getclosestcol_lim(int32_t r, int32_t g, int32_t b, int32_t lastokcol)
 {
     int32_t i, k, retcol = -1;
+    int32_t mindist = -1;
 
     const int32_t j = (r>>3)*FASTPALGRIDSIZ*FASTPALGRIDSIZ
         + (g>>3)*FASTPALGRIDSIZ + (b>>3)
         + FASTPALGRIDSIZ*FASTPALGRIDSIZ
         + FASTPALGRIDSIZ+1;
 
-    int32_t mindist = min(rdist[coldist[r&7]+64+8],gdist[coldist[g&7]+64+8]);
-    mindist = min(mindist,bdist[coldist[b&7]+64+8]);
-    mindist++;
-
+    uint32_t col;
+    
     Bassert(lastokcol >= 0 && lastokcol <= 255);
 
-    r = 64-r; g = 64-g; b = 64-b;
+    r = 64-r, g = 64-g, b = 64-b;
+
+    col = (r + (g<<8) + (b<<16));
+
+    if (!numclosestcolresults) goto skip;
+
+    if (col == (getclosestcol_results[(numclosestcolresults-1) & (COLRESULTSIZ-1)] & 0x00ffffff))
+        return getclosestcol_results[(numclosestcolresults-1) & (COLRESULTSIZ-1)]>>24;
+
+    k = (numclosestcolresults > COLRESULTSIZ) ? (COLRESULTSIZ-4) : (numclosestcolresults-4);
+
+    for (i = 0; i < k; i+=4)
+    {
+        if (col == (getclosestcol_results[i]   & 0x00ffffff)) { mindist = i; break; }
+        if (col == (getclosestcol_results[i+1] & 0x00ffffff)) { mindist = i+1; break; }
+        if (col == (getclosestcol_results[i+2] & 0x00ffffff)) { mindist = i+2; break; }
+        if (col == (getclosestcol_results[i+3] & 0x00ffffff)) { mindist = i+3; break; }
+    }
+
+    if (mindist == -1)
+    for (; i < k+4; i++)
+        if (col == (getclosestcol_results[i] & 0x00ffffff)) { mindist = i; break; }
+
+    if (mindist != -1 && getclosestcol_results[mindist]>>24 < (unsigned)lastokcol)
+        return getclosestcol_results[mindist]>>24;
+
+skip:
+    getclosestcol_results[numclosestcolresults & (COLRESULTSIZ-1)] = col;
+
+    mindist = min(rdist[coldist[r&7]+64+8], gdist[coldist[g&7]+64+8]);
+    mindist = min(mindist, bdist[coldist[b&7]+64+8]);
+    mindist++;
 
     for (k=26; k>=0; k--)
     {
@@ -8401,7 +8444,11 @@ int32_t getclosestcol_lim(int32_t r, int32_t g, int32_t b, int32_t lastokcol)
     }
 
     if (retcol >= 0)
+    {
+        getclosestcol_results[numclosestcolresults & (COLRESULTSIZ-1)] |= retcol<<24;
+        numclosestcolresults++;
         return retcol;
+    }
 
     mindist = INT32_MAX;
 
@@ -8416,6 +8463,8 @@ int32_t getclosestcol_lim(int32_t r, int32_t g, int32_t b, int32_t lastokcol)
         mindist = dist; retcol = i;
     }
 
+    getclosestcol_results[numclosestcolresults & (COLRESULTSIZ-1)] |= retcol<<24;
+    numclosestcolresults++;
     return retcol;
 }
 
@@ -9591,6 +9640,8 @@ killsprite:
                             swaplong(&spritesy[k],&spritesy[l]);
                             swaplong(&spritesz[k],&spritesz[l]);
                         }
+
+
                 for (k=i+1; k<j; k++)
                     for (l=i; l<k; l++)
                         if (tspriteptr[k]->statnum < tspriteptr[l]->statnum)
@@ -9599,6 +9650,7 @@ killsprite:
                             swaplong(&spritesx[k],&spritesx[l]);
                             swaplong(&spritesy[k],&spritesy[l]);
                         }
+
             }
             i = j;
         }
@@ -10968,7 +11020,7 @@ int32_t loadmaphack(const char *filename)
                            script->filename, scriptfile_getlinum(script,cmdtokptr));
                 break;
             }
-            spriteext[whichsprite].xoff = i;
+            spriteext[whichsprite].offset.x = i;
         }
         break;
         case T_MDYOFF:     // mdyoff <xx>
@@ -10983,7 +11035,7 @@ int32_t loadmaphack(const char *filename)
                            script->filename, scriptfile_getlinum(script,cmdtokptr));
                 break;
             }
-            spriteext[whichsprite].yoff = i;
+            spriteext[whichsprite].offset.y = i;
         }
         break;
         case T_MDZOFF:     // mdzoff <xx>
@@ -10998,7 +11050,7 @@ int32_t loadmaphack(const char *filename)
                            script->filename, scriptfile_getlinum(script,cmdtokptr));
                 break;
             }
-            spriteext[whichsprite].zoff = i;
+            spriteext[whichsprite].offset.z = i;
         }
         break;
         case T_AWAY1:      // away1
diff --git a/polymer/eduke32/build/src/hightile.c b/polymer/eduke32/build/src/hightile.c
index d1562da06..209d8e76d 100644
--- a/polymer/eduke32/build/src/hightile.c
+++ b/polymer/eduke32/build/src/hightile.c
@@ -164,8 +164,8 @@ int32_t hicsetsubsttex(int32_t picnum, int32_t palnum, const char *filen, float
 
     hrn->filename = Xstrdup(filen);
     hrn->alphacut = min(alphacut,1.0);
-    hrn->xscale = xscale;
-    hrn->yscale = yscale;
+    hrn->scale.x = xscale;
+    hrn->scale.y = yscale;
     hrn->specpower = specpower;
     hrn->specfactor = specfactor;
     hrn->flags = flags;
diff --git a/polymer/eduke32/build/src/kplib.c b/polymer/eduke32/build/src/kplib.c
index fce32ef6e..073a565a6 100644
--- a/polymer/eduke32/build/src/kplib.c
+++ b/polymer/eduke32/build/src/kplib.c
@@ -874,6 +874,7 @@ static int32_t kpngrend(const char *kfilebuf, int32_t kfilength,
                         palcol[i] &= LSWAPIB((((int32_t)filptr[i])<<24)|0xffffff);
                 break;
             default:;
+                EDUKE32_UNREACHABLE_SECTION();
             }
         }
         else if (i == (int32_t)LSWAPIB(0x54414449)) { break; }  //IDAT
diff --git a/polymer/eduke32/build/src/mdsprite.c b/polymer/eduke32/build/src/mdsprite.c
index 94c7f2e97..05fadccf6 100644
--- a/polymer/eduke32/build/src/mdsprite.c
+++ b/polymer/eduke32/build/src/mdsprite.c
@@ -2114,14 +2114,14 @@ static int32_t polymost_md3draw(md3model_t *m, const spritetype *tspr)
         float f = 1.f/(fxdimen * fviewingrange) * (m0.x+m1.x) * (2560.f * (1.f/(65536.f*1280.f)));
         Bmemset(&a0, 0, sizeof(a0));
 
-        if (sext->xoff)
-            a0.x = (float) sext->xoff * f;
+        if (sext->offset.x)
+            a0.x = (float) sext->offset.x * f;
 
-        if (sext->yoff)  // Compare with SCREEN_FACTORS above
-            a0.y = (float) sext->yoff * f;
+        if (sext->offset.y)  // Compare with SCREEN_FACTORS above
+            a0.y = (float) sext->offset.y * f;
 
-        if ((sext->zoff) && !(tspr->cstat&CSTAT_SPRITE_MDHACK))  // Compare with SCREEN_FACTORS above
-            a0.z = (float)sext->zoff / (655360.f * (m0.z+m1.z) * (gxyaspect*fxdimen*(1.f/1280.f)));
+        if ((sext->offset.z) && !(tspr->cstat&CSTAT_SPRITE_MDHACK))  // Compare with SCREEN_FACTORS above
+            a0.z = (float)sext->offset.z / (655360.f * (m0.z+m1.z) * (gxyaspect*fxdimen*(1.f/1280.f)));
 
         k0 = (float)sintable[(sext->pitch+512)&2047] * (1.f/16384.f);
         k1 = (float)sintable[sext->pitch&2047] * (1.f/16384.f);
diff --git a/polymer/eduke32/build/src/polymer.c b/polymer/eduke32/build/src/polymer.c
index 9df3d43da..139e0a52a 100644
--- a/polymer/eduke32/build/src/polymer.c
+++ b/polymer/eduke32/build/src/polymer.c
@@ -4059,7 +4059,7 @@ static void         polymer_drawmdsprite(spritetype *tspr)
         radplayerang = (globalang & 2047) * 2.0f * PI / 2048.0f;
         cosminusradplayerang = cos(-radplayerang);
         sinminusradplayerang = sin(-radplayerang);
-        hudzoom = 65536.0 / spriteext[tspr->owner].zoff;
+        hudzoom = 65536.0 / spriteext[tspr->owner].offset.z;
 
         bglTranslatef(spos[0], spos[1], spos[2]);
         bglRotatef(horizang, -cosminusradplayerang, 0.0f, sinminusradplayerang);
@@ -4114,9 +4114,9 @@ static void         polymer_drawmdsprite(spritetype *tspr)
         pitchang = (float)(spriteext[tspr->owner].pitch) / (2048.0f / 360.0f);
         rollang = (float)(spriteext[tspr->owner].roll) / (2048.0f / 360.0f);
 
-        offsets[0] = -spriteext[tspr->owner].xoff / (scale * tspr->xrepeat);
-        offsets[1] = -spriteext[tspr->owner].yoff / (scale * tspr->xrepeat);
-        offsets[2] = (float)(spriteext[tspr->owner].zoff) / 16.0f / (scale * tspr->yrepeat);
+        offsets[0] = -spriteext[tspr->owner].offset.x / (scale * tspr->xrepeat);
+        offsets[1] = -spriteext[tspr->owner].offset.y / (scale * tspr->xrepeat);
+        offsets[2] = (float)(spriteext[tspr->owner].offset.z) / 16.0f / (scale * tspr->yrepeat);
 
         bglTranslatef(-offsets[0], -offsets[1], -offsets[2]);
 
@@ -4526,8 +4526,8 @@ static void         polymer_getbuildmaterial(_prmaterial* material, int16_t tile
 
         if (pth->hicr)
         {
-            material->diffusescale[0] = pth->hicr->xscale;
-            material->diffusescale[1] = pth->hicr->yscale;
+            material->diffusescale[0] = pth->hicr->scale.x;
+            material->diffusescale[1] = pth->hicr->scale.y;
         }
     }
 
@@ -4666,8 +4666,8 @@ static void         polymer_getbuildmaterial(_prmaterial* material, int16_t tile
         pth->hicr && (pth->hicr->palnum == DETAILPAL))
     {
         material->detailmap = pth->glpic;
-        material->detailscale[0] = pth->hicr->xscale;
-        material->detailscale[1] = pth->hicr->yscale;
+        material->detailscale[0] = pth->hicr->scale.x;
+        material->detailscale[1] = pth->hicr->scale.y;
     }
 
     // PR_BIT_GLOW_MAP
diff --git a/polymer/eduke32/build/src/polymost.c b/polymer/eduke32/build/src/polymost.c
index 943821200..d28d33239 100644
--- a/polymer/eduke32/build/src/polymost.c
+++ b/polymer/eduke32/build/src/polymost.c
@@ -743,7 +743,7 @@ static void fixtransparency(coltype *dapic, vec2_t dasiz, vec2_t dasiz2, int32_t
             case 4:
                 wpptr->r = ((r   +  2)>>2); wpptr->g = ((g   +  2)>>2); wpptr->b = ((b   +  2)>>2); break;
             default:
-                break;
+                EDUKE32_UNREACHABLE_SECTION(break);
             }
         }
     }
@@ -834,7 +834,7 @@ void uploadtexture(int32_t doalloc, int32_t xsiz, int32_t ysiz, int32_t intexfmt
                 case 4:
                     wpptr->r = ((r+2)>>2); wpptr->g = ((g+2)>>2); wpptr->b = ((b+2)>>2); wpptr->a = ((a+2)>>2); break;
                 default:
-                    break;
+                    EDUKE32_UNREACHABLE_SECTION(break);
                 }
                 //if (wpptr->a) wpptr->a = 255;
             }
@@ -1088,10 +1088,9 @@ int32_t gloadtile_hi(int32_t dapic,int32_t dapalnum, int32_t facen, hicreplctyp
         fn = hicr->filename;
     }
 
-    if ((filh = kopen4load(fn, 0)) < 0)
+    if (EDUKE32_PREDICT_FALSE((filh = kopen4load(fn, 0)) < 0))
     {
         OSD_Printf("hightile: %s (pic %d) not found\n", fn, dapic);
-
         return -2;
     }
 
@@ -1117,7 +1116,7 @@ int32_t gloadtile_hi(int32_t dapic,int32_t dapalnum, int32_t facen, hicreplctyp
         if ((filh = kopen4load(fn, 0)) < 0) return -1;
 
         picfil = (char *)Xmalloc(picfillen+1);
-        if (kread(filh, picfil, picfillen) != picfillen)
+        if (EDUKE32_PREDICT_FALSE(kread(filh, picfil, picfillen) != picfillen))
             initprintf("warning: didn't fully read %s\n", fn);
         // prevent
         // Conditional jump or move depends on uninitialised value(s)
@@ -1522,11 +1521,11 @@ static void drawpoly(vec2f_t *dpxy, int32_t n, int32_t method)
         }
 
         // texture scale by parkar request
-        if (pth && pth->hicr && !drawingskybox && ((pth->hicr->xscale != 1.0f) || (pth->hicr->yscale != 1.0f)))
+        if (pth && pth->hicr && !drawingskybox && ((pth->hicr->scale.x != 1.0f) || (pth->hicr->scale.y != 1.0f)))
         {
             bglMatrixMode(GL_TEXTURE);
             bglLoadIdentity();
-            bglScalef(pth->hicr->xscale, pth->hicr->yscale, 1.0f);
+            bglScalef(pth->hicr->scale.x, pth->hicr->scale.y, 1.0f);
             bglMatrixMode(GL_MODELVIEW);
         }
 
@@ -1539,16 +1538,16 @@ static void drawpoly(vec2f_t *dpxy, int32_t n, int32_t method)
         {
             polymost_setupdetailtexture(++texunits, detailpth ? detailpth->glpic : 0);
 
-            f = detailpth ? detailpth->hicr->xscale : 1.f;
+            f = detailpth ? detailpth->hicr->scale.x : 1.f;
 
             bglMatrixMode(GL_TEXTURE);
             bglLoadIdentity();
 
-            if (pth && pth->hicr && ((pth->hicr->xscale != 1.0f) || (pth->hicr->yscale != 1.0f)))
-                bglScalef(pth->hicr->xscale, pth->hicr->yscale, 1.0f);
+            if (pth && pth->hicr && ((pth->hicr->scale.x != 1.0f) || (pth->hicr->scale.y != 1.0f)))
+                bglScalef(pth->hicr->scale.x, pth->hicr->scale.y, 1.0f);
 
-            if (detailpth && detailpth->hicr && ((detailpth->hicr->xscale != 1.0f) || (detailpth->hicr->yscale != 1.0f)))
-                bglScalef(detailpth->hicr->xscale, detailpth->hicr->yscale, 1.0f);
+            if (detailpth && detailpth->hicr && ((detailpth->hicr->scale.x != 1.0f) || (detailpth->hicr->scale.y != 1.0f)))
+                bglScalef(detailpth->hicr->scale.x, detailpth->hicr->scale.y, 1.0f);
 
             bglMatrixMode(GL_MODELVIEW);
         }
@@ -3810,7 +3809,7 @@ void polymost_drawsprite(int32_t snum)
     spritetype *const tspr = tspriteptr[snum];
     const sectortype *sec;
 
-    if (bad_tspr(tspr))
+    if (EDUKE32_PREDICT_FALSE(bad_tspr(tspr)))
         return;
 
     spritenum         = tspr->owner;
@@ -3868,19 +3867,31 @@ void polymost_drawsprite(int32_t snum)
         break;
     }
 
-    if (tspr->cstat & (2|16) || gltexmayhavealpha(tspr->picnum,tspr->pal))
+//    if (tspr->cstat & (2|16|32) || gltexmayhavealpha(tspr->picnum,tspr->pal))
     {
-#ifdef __arm__ // GL ES has a glDepthRangef and the loss of precision is OK there
-        float f = (tspr->cstat & (2|16)) ? (float)(spritenum + 1) * (FLT_EPSILON * 8.0) : 0.0;
-        if (f != 0.0) f *= 1.f/(float)(sepldist(globalposx - tspr->x, globalposy - tspr->y)>>5);
-        bglDepthFunc(GL_LESS);
+        float f;
+
+        if (tspr->cstat & 16) // push wall sprites away from wall
+        {
+            tspr->x += (sintable[(tspr->ang+512)&2047]>>13);
+            tspr->y += (sintable[tspr->ang&2047]>>13);
+            updatesector(tspr->x, tspr->y, &tspr->sectnum);
+        }
+        else if (tspr->cstat & 32)
+        {
+            if ((tspr->z - sec->ceilingz) < (sec->floorz - tspr->z))
+                tspr->z += snum;
+            else tspr->z -= snum;
+        }
+
+        f = (spritenum * (FLT_EPSILON * 1024.f))/(float)(sepldist(globalposx - tspr->x, globalposy - tspr->y));
+
+#ifdef __arm__
         glDepthRangef(0.f - f, 1.f - f);
 #else
-        double f = (tspr->cstat & (2|16)) ? (double)(spritenum + 1) * (FLT_EPSILON * 8.0) : 0.0;
-        if (f != 0.0) f *= 1.0/(double)(sepldist(globalposx - tspr->x, globalposy - tspr->y)>>5);
-        bglDepthFunc(GL_LESS);
         bglDepthRange(0.0 - f, 1.0 - f);
 #endif
+        bglDepthFunc(GL_LESS);
     }
 #endif
 
@@ -4160,9 +4171,6 @@ void polymost_drawsprite(int32_t snum)
             pxy[j].y = sx0*gcosang2 + sy0*gsinang2;
         }
 
-        if (tspr->z == sec->ceilingz) tspr->z++;
-        if (tspr->z == sec->floorz) tspr->z--;
-
         if (tspr->z < globalposz) //if floor sprite is above you, reverse order of points
         {
             swapfloat(&pxy[0].x, &pxy[1].x);
@@ -4465,7 +4473,7 @@ void polymost_dorotatespritemodel(int32_t sx, int32_t sy, int32_t z, int16_t a,
                 bglEnable(GL_BLEND);
 
                 spriteext[tspr.owner].roll = a;
-                spriteext[tspr.owner].zoff = z;
+                spriteext[tspr.owner].offset.z = z;
 
                 fov = hudmem[(dastat&4)>>2][picnum].fov;
 
@@ -4481,7 +4489,7 @@ void polymost_dorotatespritemodel(int32_t sx, int32_t sy, int32_t z, int16_t a,
 
                 polymer_setaspect(pr_fov);
 
-                spriteext[tspr.owner].zoff = 0;
+                spriteext[tspr.owner].offset.z = 0;
                 spriteext[tspr.owner].roll = 0;
 
                 bglDisable(GL_BLEND);
diff --git a/polymer/eduke32/source/actors.c b/polymer/eduke32/source/actors.c
index 9ed46ef1f..5850f9309 100644
--- a/polymer/eduke32/source/actors.c
+++ b/polymer/eduke32/source/actors.c
@@ -596,11 +596,11 @@ void A_DeleteSprite(int32_t s)
         return;
     }
 
-    if (G_HaveEvent(EVENT_KILLIT))
+    if (VM_HaveEvent(EVENT_KILLIT))
     {
         int32_t p, pl=A_FindPlayer(&sprite[s],&p);
 
-        if (VM_OnEvent(EVENT_KILLIT, s, pl, p, 0))
+        if (VM_OnEvent_(EVENT_KILLIT, s, pl, p, 0))
             return;
     }
 
@@ -8295,31 +8295,32 @@ int32_t A_CheckSwitchTile(int32_t i)
 void G_MoveWorld(void)
 {
     extern double g_moveActorsTime;
-    int32_t k = MAXSTATUS-1;
 
-    do
+    if (EDUKE32_PREDICT_FALSE(VM_HaveEvent(EVENT_PREGAME)))
     {
-        int32_t i = headspritestat[k];
+        int32_t i, j, k = 0, p, pl;
 
-        while (i >= 0)
+        do
         {
-            const int32_t j = nextspritestat[i];
+            i = headspritestat[k++];
 
-            if (!G_HaveEvent(EVENT_PREGAME) || A_CheckSpriteFlags(i, SFLAG_NOEVENTCODE))
+            while (i >= 0)
             {
+                j = nextspritestat[i];
+
+                if (A_CheckSpriteFlags(i, SFLAG_NOEVENTCODE))
+                {
+                    i = j;
+                    continue;
+                }
+
+                pl = A_FindPlayer(&sprite[i], &p);
+                VM_OnEvent_(EVENT_PREGAME, i, pl, p, 0);
+
                 i = j;
-                continue;
             }
-
-            {
-                int32_t p, pl = A_FindPlayer(&sprite[i], &p);
-                VM_OnEvent(EVENT_PREGAME, i, pl, p, 0);
-            }
-
-            i = j;
-        }
+        } while (k < MAXSTATUS);
     }
-    while (k--);
 
     G_MoveZombieActors();     //ST 2
     G_MoveWeapons();          //ST 4
@@ -8345,35 +8346,51 @@ void G_MoveWorld(void)
 
     G_MoveStandables();       //ST 6
 
-    k = MAXSTATUS-1;
 
-    do
+    if (EDUKE32_PREDICT_FALSE(VM_HaveEvent(EVENT_GAME)))
     {
-        int32_t i = headspritestat[k];
+        int32_t i, j, k = 0, p, pl;
 
-        while (i >= 0)
+        do
         {
-            const int32_t j = nextspritestat[i];
+            i = headspritestat[k++];
+
+            while (i >= 0)
+            {
+
+                if (A_CheckSpriteFlags(i, SFLAG_NOEVENTCODE))
+                {
+                    i = nextspritestat[i];
+                    continue;
+                }
+
+                j = nextspritestat[i];
+
+                pl = A_FindPlayer(&sprite[i], &p);
+                VM_OnEvent_(EVENT_GAME, i, pl, p, 0);
+
+                i = j;
+            }
+        } while (k < MAXSTATUS);
+    }
 
 #ifdef POLYMER
-            if (getrendermode() == REND_POLYMER)
+    if (getrendermode() == REND_POLYMER)
+    {
+        int32_t i, k = 0;
+
+        do
+        {
+            i = headspritestat[k++];
+
+            while (i >= 0)
+            {
                 A_DoLight(i);
-#endif
-            if (!G_HaveEvent(EVENT_GAME) || A_CheckSpriteFlags(i, SFLAG_NOEVENTCODE))
-            {
-                i = j;
-                continue;
+                i = nextspritestat[i];
             }
-
-            {
-                int32_t p, pl = A_FindPlayer(&sprite[i], &p);
-                VM_OnEvent(EVENT_GAME,i, pl, p, 0);
-            }
-
-            i = j;
-        }
+        } while (k < MAXSTATUS);
     }
-    while (k--);
+#endif
 
     G_DoSectorAnimations();
     G_MoveFX();               //ST 11
diff --git a/polymer/eduke32/source/astub.c b/polymer/eduke32/source/astub.c
index 5471cce61..f089ca15e 100644
--- a/polymer/eduke32/source/astub.c
+++ b/polymer/eduke32/source/astub.c
@@ -8349,7 +8349,7 @@ static void G_CheckCommandLine(int32_t argc, const char **argv)
 }
 #undef COPYARG
 
-#ifdef _WIN32
+#if defined(_WIN32) && defined(DEBUGGINGAIDS)
 // See FILENAME_CASE_CHECK in cache1d.c
 static int32_t check_filename_casing(void)
 {
@@ -8359,7 +8359,7 @@ static int32_t check_filename_casing(void)
 
 int32_t ExtPreInit(int32_t argc,const char **argv)
 {
-#ifdef _WIN32
+#if defined(_WIN32) && defined(DEBUGGINGAIDS)
     {
         extern int32_t (*check_filename_casing_fn)(void);
         check_filename_casing_fn = check_filename_casing;
diff --git a/polymer/eduke32/source/duke3d.h b/polymer/eduke32/source/duke3d.h
index cb04dc1a8..55655d4e8 100644
--- a/polymer/eduke32/source/duke3d.h
+++ b/polymer/eduke32/source/duke3d.h
@@ -151,15 +151,6 @@ EDUKE32_STATIC_ASSERT(5 <= MAXTILES-MAXUSERTILES);
 # include "lunatic_game.h"
 #endif
 
-static inline int32_t G_HaveEvent(int32_t iEventID)
-{
-#ifdef LUNATIC
-    return El_HaveEvent(iEventID);
-#else
-    return apScriptGameEvent[iEventID]!=NULL;
-#endif
-}
-
 static inline int32_t G_HaveActor(int32_t actortile)
 {
 #ifdef LUNATIC
diff --git a/polymer/eduke32/source/game.c b/polymer/eduke32/source/game.c
index eef01a6ca..1c064bb55 100644
--- a/polymer/eduke32/source/game.c
+++ b/polymer/eduke32/source/game.c
@@ -3765,10 +3765,10 @@ void G_DisplayRest(int32_t smoothratio)
         }
     }
 
-    if (G_HaveEvent(EVENT_DISPLAYREST))
+    if (VM_HaveEvent(EVENT_DISPLAYREST))
     {
         int32_t vr=viewingrange, asp=yxaspect;
-        VM_OnEvent(EVENT_DISPLAYREST, g_player[screenpeek].ps->i, screenpeek, -1, 0);
+        VM_OnEvent_(EVENT_DISPLAYREST, g_player[screenpeek].ps->i, screenpeek, -1, 0);
         setaspect(vr, asp);
     }
 
@@ -4044,8 +4044,7 @@ void G_DrawBackground(void)
 
         // when not rendering a game, fullscreen wipe
 //        Gv_SetVar(g_iReturnVarID,tilesizx[MENUTILE]==320&&tilesizy[MENUTILE]==200?MENUTILE:BIGHOLE, -1, -1);
-        if (G_HaveEvent(EVENT_GETMENUTILE))
-            bgtile = VM_OnEvent(EVENT_GETMENUTILE, -1, myconnectindex, -1, bgtile);
+        bgtile = VM_OnEvent(EVENT_GETMENUTILE, -1, myconnectindex, -1, bgtile);
         // MENU_TILE: is the menu tile tileable?
 #if !defined LUNATIC
         if (Gv_GetVarByLabel("MENU_TILE", !fstilep, -1, -1))
@@ -4705,8 +4704,7 @@ void G_DrawRooms(int32_t snum, int32_t smoothratio)
         dont_draw = 0;
         // NOTE: might be rendering off-screen here, so CON commands that draw stuff
         //  like showview must cope with that situation or bail out!
-        if (G_HaveEvent(EVENT_DISPLAYROOMS))
-            dont_draw = VM_OnEvent(EVENT_DISPLAYROOMS, g_player[screenpeek].ps->i, screenpeek, -1, 0);
+        dont_draw = VM_OnEvent(EVENT_DISPLAYROOMS, g_player[screenpeek].ps->i, screenpeek, -1, 0);
 
         CAMERA(horiz) = clamp(CAMERA(horiz), HORIZ_MIN, HORIZ_MAX);
 
@@ -5066,12 +5064,12 @@ int32_t A_InsertSprite(int32_t whatsect,int32_t s_x,int32_t s_y,int32_t s_z,int3
     g_noResetVars = 0;
 #endif
 
-    if (G_HaveEvent(EVENT_EGS))
+    if (VM_HaveEvent(EVENT_EGS))
     {
         int32_t pl=A_FindPlayer(s, &p);
 
         block_deletesprite++;
-        VM_OnEvent(EVENT_EGS, i, pl, p, 0);
+        VM_OnEvent_(EVENT_EGS, i, pl, p, 0);
         block_deletesprite--;
     }
 
@@ -7067,11 +7065,11 @@ int32_t A_Spawn(int32_t j, int32_t pn)
         }
 
 SPAWN_END:
-    if (G_HaveEvent(EVENT_SPAWN))
+    if (VM_HaveEvent(EVENT_SPAWN))
     {
         int32_t p;
         int32_t pl=A_FindPlayer(&sprite[i],&p);
-        VM_OnEvent(EVENT_SPAWN,i, pl, p, 0);
+        VM_OnEvent_(EVENT_SPAWN,i, pl, p, 0);
     }
 
     return i;
@@ -7196,13 +7194,13 @@ static void G_DoEventAnimSprites(int32_t j)
 {
     const int32_t ow = tsprite[j].owner;
 
-    if (((unsigned)ow < MAXSPRITES && spriteext[ow].flags & SPREXT_TSPRACCESS) || tsprite[j].statnum == TSPR_TEMP)
-    {
-        spriteext[ow].tspr = &tsprite[j];
-        // XXX: wouldn't screenpeek be more meaningful as current player?
-        VM_OnEvent(EVENT_ANIMATESPRITES, ow, myconnectindex, -1, 0);
-        spriteext[ow].tspr = NULL;
-    }
+    if (((unsigned) ow >= MAXSPRITES || (spriteext[ow].flags & SPREXT_TSPRACCESS) != SPREXT_TSPRACCESS) || tsprite[j].statnum != TSPR_TEMP)
+        return;
+
+    spriteext[ow].tspr = &tsprite[j];
+    // XXX: wouldn't screenpeek be more meaningful as current player?
+    VM_OnEvent_(EVENT_ANIMATESPRITES, ow, myconnectindex, -1, 0);
+    spriteext[ow].tspr = NULL;
 }
 
 void G_DoSpriteAnimations(int32_t ourx, int32_t oury, int32_t oura, int32_t smoothratio)
@@ -7482,7 +7480,7 @@ void G_DoSpriteAnimations(int32_t ourx, int32_t oury, int32_t oura, int32_t smoo
             else if (g_curViewscreen >= 0 && OW != i && display_mirror != 3 && waloff[TILE_VIEWSCR] && walock[TILE_VIEWSCR] > 200 )
             {
                 // this exposes a sprite sorting issue which needs to be debugged further...
-#if 0       
+#if 0
                 if (spritesortcnt < MAXSPRITESONSCREEN)
                 {
                     spritetype *const newt = &tsprite[spritesortcnt++];
@@ -7501,10 +7499,11 @@ void G_DoSpriteAnimations(int32_t ourx, int32_t oury, int32_t oura, int32_t smoo
                 t->yrepeat = t->yrepeat & 1 ? (t->yrepeat>>2) + 1 : t->yrepeat>>2;
             }
 
+#if 0 // moved to polymost
             t->x += (sintable[(t->ang+512)&2047]>>13);
             t->y += (sintable[t->ang&2047]>>13);
             updatesector(t->x, t->y, &t->sectnum);
-
+#endif
             break;
 
         case SHRINKSPARK__STATIC:
@@ -8051,15 +8050,14 @@ skip:
         */
     }
 
-    if (G_HaveEvent(EVENT_ANIMATESPRITES))
+    if (VM_HaveEvent(EVENT_ANIMATESPRITES))
     {
         for (j = spritesortcnt-1; j>=0; j--)
             G_DoEventAnimSprites(j);
     }
 
 #ifdef LUNATIC
-    if (G_HaveEvent(EVENT_ANIMATEALLSPRITES))
-        VM_OnEvent(EVENT_ANIMATEALLSPRITES, -1, -1, -1, 0);
+    VM_OnEvent(EVENT_ANIMATEALLSPRITES, -1, -1, -1, 0);
 #endif
 #ifdef DEBUGGINGAIDS
     g_spriteStat.numonscreen = spritesortcnt;
@@ -11191,7 +11189,7 @@ void app_crashhandler(void)
     G_GameQuit();
 }
 
-#ifdef _WIN32
+#if defined(_WIN32) && defined(DEBUGGINGAIDS)
 // See FILENAME_CASE_CHECK in cache1d.c
 static int32_t check_filename_casing(void)
 {
@@ -11252,10 +11250,12 @@ int32_t app_main(int32_t argc, const char **argv)
 
     backgroundidle = 0;
 
+#ifdef DEBUGGINGAIDS
     {
         extern int32_t (*check_filename_casing_fn)(void);
         check_filename_casing_fn = check_filename_casing;
     }
+#endif
 #endif
 
     G_ExtPreInit(argc, argv);
diff --git a/polymer/eduke32/source/gamedef.c b/polymer/eduke32/source/gamedef.c
index 18fcf99f4..7f9fb1bb7 100644
--- a/polymer/eduke32/source/gamedef.c
+++ b/polymer/eduke32/source/gamedef.c
@@ -1267,7 +1267,7 @@ static int32_t C_SetScriptSize(int32_t newsize)
     {
         if (bitptr[i>>3]&(BITPTR_POINTER<<(i&7)))
         {
-            if ((intptr_t)script[i] < (intptr_t)&script[0] || (intptr_t)script[i] >= (intptr_t)&script[g_scriptSize])
+            if (EDUKE32_PREDICT_FALSE((intptr_t)script[i] < (intptr_t)&script[0] || (intptr_t)script[i] >= (intptr_t)&script[g_scriptSize]))
             {
                 g_numCompilerErrors++;
                 initprintf("Internal compiler error at %" PRIdPTR " (0x%" PRIxPTR ")\n",i,i);
@@ -1375,7 +1375,7 @@ static int32_t C_SkipComments(void)
                 }
                 while (*textptr && (textptr[0] != '*' || textptr[1] != '/'));
 
-                if (!*textptr)
+                if (EDUKE32_PREDICT_FALSE(!*textptr))
                 {
                     if (!(g_numCompilerErrors || g_numCompilerWarnings) && g_scriptDebug)
                         initprintf("%s:%d: debug: EOF in comment!\n",g_szScriptFileName,g_lineNumber);
@@ -1498,7 +1498,7 @@ static int32_t C_GetNextKeyword(void) //Returns its code #
     }
     tempbuf[l] = 0;
 
-    if ((i = hash_find(&h_keywords,tempbuf)) >= 0)
+    if (EDUKE32_PREDICT_TRUE((i = hash_find(&h_keywords,tempbuf)) >= 0))
     {
         if (i == CON_LEFTBRACE || i == CON_RIGHTBRACE || i == CON_NULLOP)
             *g_scriptPtr = i + (IFELSE_MAGIC<<12);
@@ -1516,7 +1516,7 @@ static int32_t C_GetNextKeyword(void) //Returns its code #
     textptr += l;
     g_numCompilerErrors++;
 
-    if ((tempbuf[0] == '{' || tempbuf[0] == '}') && tempbuf[1] != 0)
+    if (EDUKE32_PREDICT_FALSE((tempbuf[0] == '{' || tempbuf[0] == '}') && tempbuf[1] != 0))
     {
         C_ReportError(-1);
         initprintf("%s:%d: error: expected whitespace between `%c' and `%s'.\n",g_szScriptFileName,g_lineNumber,tempbuf[0],tempbuf+1);
@@ -1531,11 +1531,11 @@ static int32_t parse_decimal_number(void)  // (textptr)
     // decimal constants -- this is finicky business
     int64_t num = strtoll(textptr, NULL, 10);  // assume long long to be int64_t
 
-    if (num >= INT32_MIN && num <= INT32_MAX)
+    if (EDUKE32_PREDICT_TRUE(num >= INT32_MIN && num <= INT32_MAX))
     {
         // all OK
     }
-    else if (num > INT32_MAX && num <= UINT32_MAX)
+    else if (EDUKE32_PREDICT_FALSE(num > INT32_MAX && num <= UINT32_MAX))
     {
         // Number interpreted as uint32, but packed as int32 (on 32-bit archs)
         // (CON code in the wild exists that does this).  Note that such conversion
@@ -1563,7 +1563,7 @@ static int32_t parse_hex_constant(const char *hexnum)
     int64_t x;
     sscanf(hexnum, "%" PRIx64 "", &x);
 
-    if (x > UINT32_MAX)
+    if (EDUKE32_PREDICT_FALSE(x > UINT32_MAX))
     {
         initprintf("%s:%d: warning: number 0x%" PRIx64 " truncated to 32 bits.\n",
                    g_szScriptFileName,g_lineNumber, x);
@@ -1605,13 +1605,7 @@ static void C_GetNextVarType(int32_t type)
     }
     else if ((*textptr == '-')/* && !isdigit(*(textptr+1))*/)
     {
-        if (!type)
-        {
-            if (!(g_numCompilerErrors || g_numCompilerWarnings) && g_scriptDebug)
-                initprintf("%s:%d: debug: flagging gamevar as negative.\n",g_szScriptFileName,g_lineNumber); //,Batol(textptr));
-            f = (MAXGAMEVARS<<1);
-        }
-        else
+        if (EDUKE32_PREDICT_FALSE(type))
         {
             g_numCompilerErrors++;
             C_ReportError(ERROR_SYNTAXERROR);
@@ -1619,12 +1613,16 @@ static void C_GetNextVarType(int32_t type)
             return;
         }
 
+        if (!(g_numCompilerErrors || g_numCompilerWarnings) && g_scriptDebug)
+            initprintf("%s:%d: debug: flagging gamevar as negative.\n", g_szScriptFileName, g_lineNumber); //,Batol(textptr));
+        f = (MAXGAMEVARS<<1);
+
         textptr++;
     }
 
     C_GetNextLabelName();
 
-    if (!g_skipKeywordCheck && hash_find(&h_keywords,label+(g_numLabels<<6))>=0)
+    if (EDUKE32_PREDICT_FALSE(!g_skipKeywordCheck && hash_find(&h_keywords,label+(g_numLabels<<6))>=0))
     {
         g_numCompilerErrors++;
         C_ReportError(ERROR_ISAKEYWORD);
@@ -1645,7 +1643,7 @@ static void C_GetNextVarType(int32_t type)
             if (i < g_iSpriteVarID || i > g_iActorVarID)
                 i = -1;
 
-            if (i < 0)
+            if (EDUKE32_PREDICT_FALSE(i < 0))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_NOTAGAMEARRAY);
@@ -1660,7 +1658,7 @@ static void C_GetNextVarType(int32_t type)
         C_GetNextVarType(0);
         C_SkipComments();
 
-        if (*textptr != ']')
+        if (EDUKE32_PREDICT_FALSE(*textptr != ']'))
         {
             g_numCompilerErrors++;
             C_ReportError(ERROR_GAMEARRAYBNC);
@@ -1670,7 +1668,7 @@ static void C_GetNextVarType(int32_t type)
 
         //writing arrays in this way is not supported because it would require too many changes to other code
 
-        if (type)
+        if (EDUKE32_PREDICT_FALSE(type))
         {
             g_numCompilerErrors++;
             C_ReportError(ERROR_INVALIDARRAYWRITE);
@@ -1689,7 +1687,7 @@ static void C_GetNextVarType(int32_t type)
                 textptr++;
             }
 
-            if (*textptr != '.')
+            if (EDUKE32_PREDICT_FALSE(*textptr != '.'))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_SYNTAXERROR);
@@ -1712,7 +1710,7 @@ static void C_GetNextVarType(int32_t type)
                 lLabelID=GetDefID(label+(g_numLabels<<6));
 
             //printf("LabelID is %d\n",lLabelID);
-            if (lLabelID == -1)
+            if (EDUKE32_PREDICT_FALSE(lLabelID == -1))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_SYMBOLNOTRECOGNIZED);
@@ -1765,9 +1763,9 @@ static void C_GetNextVarType(int32_t type)
             //try looking for a define instead
             Bstrcpy(tempbuf,label+(g_numLabels<<6));
             i = hash_find(&h_labels,tempbuf);
-            if (i>=0)
+            if (EDUKE32_PREDICT_TRUE(i>=0))
             {
-                if (labeltype[i] & LABEL_DEFINE)
+                if (EDUKE32_PREDICT_TRUE(labeltype[i] & LABEL_DEFINE))
                 {
                     if (!(g_numCompilerErrors || g_numCompilerWarnings) && g_scriptDebug)
                         initprintf("%s:%d: debug: accepted defined label `%s' instead of gamevar.\n",g_szScriptFileName,g_lineNumber,label+(i<<6));
@@ -1788,13 +1786,13 @@ static void C_GetNextVarType(int32_t type)
         return;
 
     }
-    if (type == GAMEVAR_READONLY && aGameVars[i].dwFlags & GAMEVAR_READONLY)
+    if (EDUKE32_PREDICT_FALSE(type == GAMEVAR_READONLY && aGameVars[i].dwFlags & GAMEVAR_READONLY))
     {
         g_numCompilerErrors++;
         C_ReportError(ERROR_VARREADONLY);
         return;
     }
-    else if (aGameVars[i].dwFlags & type)
+    else if (EDUKE32_PREDICT_FALSE(aGameVars[i].dwFlags & type))
     {
         g_numCompilerErrors++;
         C_ReportError(ERROR_VARTYPEMISMATCH);
@@ -1842,7 +1840,7 @@ static int32_t C_GetNextValue(int32_t type)
     }
     tempbuf[l] = 0;
 
-    if (!g_skipKeywordCheck && hash_find(&h_keywords,tempbuf /*label+(g_numLabels<<6)*/)>=0)
+    if (EDUKE32_PREDICT_FALSE(!g_skipKeywordCheck && hash_find(&h_keywords,tempbuf /*label+(g_numLabels<<6)*/)>=0))
     {
         g_numCompilerErrors++;
         C_ReportError(ERROR_ISAKEYWORD);
@@ -1854,7 +1852,7 @@ static int32_t C_GetNextValue(int32_t type)
     {
         char *el,*gl;
 
-        if (labeltype[i] & type)
+        if (EDUKE32_PREDICT_TRUE(labeltype[i] & type))
         {
             if (!(g_numCompilerErrors || g_numCompilerWarnings) && g_scriptDebug > 1)
             {
@@ -1869,6 +1867,7 @@ static int32_t C_GetNextValue(int32_t type)
             textptr += l;
             return labeltype[i];
         }
+
         bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
         *(g_scriptPtr++) = 0;
         textptr += l;
@@ -1882,7 +1881,7 @@ static int32_t C_GetNextValue(int32_t type)
         return -1;  // valid label name, but wrong type
     }
 
-    if (isdigit(*textptr) == 0 && *textptr != '-')
+    if (EDUKE32_PREDICT_FALSE(isdigit(*textptr) == 0 && *textptr != '-'))
     {
         C_ReportError(ERROR_PARAMUNDEFINED);
         g_numCompilerErrors++;
@@ -1893,7 +1892,7 @@ static int32_t C_GetNextValue(int32_t type)
         return -1; // error!
     }
 
-    if (isdigit(*textptr) && g_labelsOnly)
+    if (EDUKE32_PREDICT_FALSE(isdigit(*textptr) && g_labelsOnly))
     {
         C_ReportError(WARNING_LABELSONLY);
         g_numCompilerWarnings++;
@@ -1904,7 +1903,7 @@ static int32_t C_GetNextValue(int32_t type)
     {
         // FIXME: check for 0-9 A-F for hex
         if (textptr[0] == '0' && textptr[1] == 'x') break; // kill the warning for hex
-        if (!isdigit(textptr[i--]))
+        if (EDUKE32_PREDICT_FALSE(!isdigit(textptr[i--])))
         {
             C_ReportError(-1);
             initprintf("%s:%d: warning: invalid character `%c' in definition!\n",g_szScriptFileName,g_lineNumber,textptr[i+1]);
@@ -1985,7 +1984,7 @@ static int32_t C_CheckEmptyBranch(int32_t tw, intptr_t lastScriptPtr)
     if ((*(g_scriptPtr) & 0xFFF) != CON_NULLOP || *(g_scriptPtr)>>12 != IFELSE_MAGIC)
         g_ifElseAborted = 0;
 
-    if (g_ifElseAborted)
+    if (EDUKE32_PREDICT_FALSE(g_ifElseAborted))
     {
         C_ReportError(-1);
         g_numCompilerWarnings++;
@@ -2037,7 +2036,7 @@ static void C_Include(const char *confile)
     int32_t fp;
 
     fp = kopen4loadfrommod(confile,g_loadFromGroupOnly);
-    if (fp < 0)
+    if (EDUKE32_PREDICT_FALSE(fp < 0))
     {
         g_numCompilerErrors++;
         initprintf("%s:%d: error: could not find file `%s'.\n",g_szScriptFileName,g_lineNumber,confile);
@@ -2519,17 +2518,17 @@ static int32_t C_ParseCommand(int32_t loop)
 
     do
     {
-        if (quitevent)
+        if (EDUKE32_PREDICT_FALSE(quitevent))
         {
             initprintf("Aborted.\n");
             G_Shutdown();
             Bexit(0);
         }
 
-        if (g_numCompilerErrors > 63 || (*textptr == '\0') || (*(textptr+1) == '\0') || C_SkipComments())
+        if (EDUKE32_PREDICT_FALSE(g_numCompilerErrors > 63 || (*textptr == '\0') || (*(textptr+1) == '\0') || C_SkipComments()))
             return 1;
 
-        if (g_scriptDebug)
+        if (EDUKE32_PREDICT_FALSE(g_scriptDebug))
             C_ReportError(-1);
 
         tempscrptr = NULL; // temptextptr = NULL;
@@ -2552,14 +2551,14 @@ static int32_t C_ParseCommand(int32_t loop)
                 g_processingState = 1;
                 Bsprintf(g_szCurrentBlockName,"%s",label+(g_numLabels<<6));
 
-                if (hash_find(&h_keywords,label+(g_numLabels<<6))>=0)
+                if (EDUKE32_PREDICT_FALSE(hash_find(&h_keywords,label+(g_numLabels<<6))>=0))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_ISAKEYWORD);
                     continue;
                 }
 
-                if (hash_find(&h_gamevars,label+(g_numLabels<<6))>=0)
+                if (EDUKE32_PREDICT_FALSE(hash_find(&h_gamevars,label+(g_numLabels<<6))>=0))
                 {
                     g_numCompilerWarnings++;
                     C_ReportError(WARNING_NAMEMATCHESVAR);
@@ -2572,43 +2571,39 @@ static int32_t C_ParseCommand(int32_t loop)
 
             C_GetNextLabelName();
 
-            if ((j = hash_find(&h_labels,label+(g_numLabels<<6))) >= 0)
-            {
-                if (labeltype[j] & LABEL_STATE)
-                {
-                    if (!(g_numCompilerErrors || g_numCompilerWarnings) && g_scriptDebug > 1)
-                        initprintf("%s:%d: debug: accepted state label `%s'.\n",g_szScriptFileName,g_lineNumber,label+(j<<6));
-                    *g_scriptPtr = (intptr_t)(script+labelcode[j]);
-
-                    // 'state' type labels are always script addresses, as far as I can see
-                    bitptr[(g_scriptPtr-script)>>3] |= (BITPTR_POINTER<<((g_scriptPtr-script)&7));
-
-                    g_scriptPtr++;
-                    continue;
-                }
-                else
-                {
-                    char *gl = (char *)C_GetLabelType(labeltype[j]);
-                    C_ReportError(-1);
-                    initprintf("%s:%d: warning: expected state, found %s.\n",g_szScriptFileName,g_lineNumber,gl);
-                    g_numCompilerWarnings++;
-                    Bfree(gl);
-                    *(g_scriptPtr-1) = CON_NULLOP; // get rid of the state, leaving a nullop to satisfy if conditions
-                    bitptr[(g_scriptPtr-script-1)>>3] &= ~(1<<((g_scriptPtr-script-1)&7));
-                    continue;  // valid label name, but wrong type
-                }
-            }
-            else
+            if (EDUKE32_PREDICT_FALSE((j = hash_find(&h_labels,label+(g_numLabels<<6))) < 0))
             {
                 C_ReportError(-1);
                 initprintf("%s:%d: error: state `%s' not found.\n",g_szScriptFileName,g_lineNumber,label+(g_numLabels<<6));
                 g_numCompilerErrors++;
+                g_scriptPtr++;
+                continue;
             }
+
+            if (EDUKE32_PREDICT_FALSE((labeltype[j] & LABEL_STATE) != LABEL_STATE))
+            {
+                char *gl = (char *) C_GetLabelType(labeltype[j]);
+                C_ReportError(-1);
+                initprintf("%s:%d: warning: expected state, found %s.\n", g_szScriptFileName, g_lineNumber, gl);
+                g_numCompilerWarnings++;
+                Bfree(gl);
+                *(g_scriptPtr-1) = CON_NULLOP; // get rid of the state, leaving a nullop to satisfy if conditions
+                bitptr[(g_scriptPtr-script-1)>>3] &= ~(1<<((g_scriptPtr-script-1)&7));
+                continue;  // valid label name, but wrong type
+            }
+
+            if (!(g_numCompilerErrors || g_numCompilerWarnings) && g_scriptDebug > 1)
+                initprintf("%s:%d: debug: accepted state label `%s'.\n", g_szScriptFileName, g_lineNumber, label+(j<<6));
+            *g_scriptPtr = (intptr_t) (script+labelcode[j]);
+
+            // 'state' type labels are always script addresses, as far as I can see
+            bitptr[(g_scriptPtr-script)>>3] |= (BITPTR_POINTER<<((g_scriptPtr-script)&7));
+
             g_scriptPtr++;
             continue;
 
         case CON_ENDS:
-            if (g_processingState == 0)
+            if (EDUKE32_PREDICT_FALSE(g_processingState == 0))
             {
                 C_ReportError(-1);
                 initprintf("%s:%d: error: found `ends' without open `state'.\n",g_szScriptFileName,g_lineNumber);
@@ -2616,17 +2611,18 @@ static int32_t C_ParseCommand(int32_t loop)
             }
             //            else
             {
-                if (g_numBraces > 0)
+                if (EDUKE32_PREDICT_FALSE(g_numBraces > 0))
                 {
                     C_ReportError(ERROR_OPENBRACKET);
                     g_numCompilerErrors++;
                 }
-                else if (g_numBraces < 0)
+                else if (EDUKE32_PREDICT_FALSE(g_numBraces < 0))
                 {
                     C_ReportError(ERROR_CLOSEBRACKET);
                     g_numCompilerErrors++;
                 }
-                if (g_checkingSwitch > 0)
+
+                if (EDUKE32_PREDICT_FALSE(g_checkingSwitch > 0))
                 {
                     C_ReportError(ERROR_NOENDSWITCH);
                     g_numCompilerErrors++;
@@ -2672,7 +2668,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                     textptr++;
                 }
-                if (*textptr!='.')
+                if (EDUKE32_PREDICT_FALSE(*textptr!='.'))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYNTAXERROR);
@@ -2685,7 +2681,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                 lLabelID=C_GetLabelNameOffset(&projectileH,Bstrtolower(label+(g_numLabels<<6)));
                 //printf("LabelID is %d\n",lLabelID);
-                if (lLabelID == -1)
+                if (EDUKE32_PREDICT_FALSE(lLabelID == -1))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYMBOLNOTRECOGNIZED);
@@ -2720,7 +2716,7 @@ static int32_t C_ParseCommand(int32_t loop)
             // (see top of this files for flags)
             //printf("Got gamedef. Getting Label. '%.20s'\n",textptr);
 
-            if (isdigit(*textptr) || (*textptr == '-'))
+            if (EDUKE32_PREDICT_FALSE(isdigit(*textptr) || (*textptr == '-')))
             {
                 C_GetNextLabelName();
                 g_numCompilerErrors++;
@@ -2735,7 +2731,7 @@ static int32_t C_ParseCommand(int32_t loop)
             //printf("Got Label '%.20s'\n",textptr);
             // Check to see it's already defined
 
-            if (hash_find(&h_keywords,label+(g_numLabels<<6))>=0)
+            if (EDUKE32_PREDICT_FALSE(hash_find(&h_keywords,label+(g_numLabels<<6))>=0))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_ISAKEYWORD);
@@ -2750,7 +2746,7 @@ static int32_t C_ParseCommand(int32_t loop)
             //Bsprintf(g_szBuf,"Adding GameVar=\"%s\", val=%l, flags=%lX",label+(g_numLabels<<6),
             //      *(g_scriptPtr-2), *(g_scriptPtr-1));
             //AddLog(g_szBuf);
-            if ((*(g_scriptPtr-1)&GAMEVAR_USER_MASK)==3)
+            if (EDUKE32_PREDICT_FALSE((*(g_scriptPtr-1)&GAMEVAR_USER_MASK)==3))
             {
                 g_numCompilerWarnings++;
                 *(g_scriptPtr-1)^=GAMEVAR_PERPLAYER;
@@ -2766,7 +2762,7 @@ static int32_t C_ParseCommand(int32_t loop)
             continue;
 
         case CON_GAMEARRAY:
-            if (isdigit(*textptr) || (*textptr == '-'))
+            if (EDUKE32_PREDICT_FALSE(isdigit(*textptr) || (*textptr == '-')))
             {
                 C_GetNextLabelName();
                 g_numCompilerErrors++;
@@ -2780,7 +2776,7 @@ static int32_t C_ParseCommand(int32_t loop)
             //printf("Got Label '%.20s'\n",textptr);
             // Check to see it's already defined
 
-            if (hash_find(&h_keywords,label+(g_numLabels<<6))>=0)
+            if (EDUKE32_PREDICT_FALSE(hash_find(&h_keywords,label+(g_numLabels<<6))>=0))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_ISAKEYWORD);
@@ -2788,7 +2784,7 @@ static int32_t C_ParseCommand(int32_t loop)
             }
 
             i = hash_find(&h_gamevars,label+(g_numLabels<<6));
-            if (i>=0)
+            if (EDUKE32_PREDICT_FALSE(i>=0))
             {
                 g_numCompilerWarnings++;
                 C_ReportError(WARNING_NAMEMATCHESVAR);
@@ -2808,7 +2804,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 //printf("Got label. '%.20s'\n",textptr);
                 // Check to see it's already defined
 
-                if (hash_find(&h_keywords,label+(g_numLabels<<6))>=0)
+                if (EDUKE32_PREDICT_FALSE(hash_find(&h_keywords,label+(g_numLabels<<6))>=0))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_ISAKEYWORD);
@@ -2816,7 +2812,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 }
 
                 i = hash_find(&h_gamevars,label+(g_numLabels<<6));
-                if (i>=0)
+                if (EDUKE32_PREDICT_FALSE(i>=0))
                 {
                     g_numCompilerWarnings++;
                     C_ReportError(WARNING_NAMEMATCHESVAR);
@@ -2832,7 +2828,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 {
                     // if (i >= g_numDefaultLabels)
 
-                    if (labelcode[i] != *(g_scriptPtr-1))
+                    if (EDUKE32_PREDICT_FALSE(labelcode[i] != *(g_scriptPtr-1)))
                     {
                         g_numCompilerWarnings++;
                         initprintf("%s:%d: warning: ignored redefinition of `%s' to %d (old: %d).\n",g_szScriptFileName,
@@ -2872,7 +2868,7 @@ static int32_t C_ParseCommand(int32_t loop)
         case CON_MOVE:
             if (g_parsingActorPtr || g_processingState)
             {
-                if ((C_GetNextValue(LABEL_MOVE|LABEL_DEFINE) == 0) && (*(g_scriptPtr-1) != 0) && (*(g_scriptPtr-1) != 1))
+                if (EDUKE32_PREDICT_FALSE((C_GetNextValue(LABEL_MOVE|LABEL_DEFINE) == 0) && (*(g_scriptPtr-1) != 0) && (*(g_scriptPtr-1) != 1)))
                 {
                     C_ReportError(-1);
                     bitptr[(g_scriptPtr-script-1)>>3] &= ~(1<<((g_scriptPtr-script-1)&7));
@@ -2899,20 +2895,20 @@ static int32_t C_ParseCommand(int32_t loop)
                 C_GetNextLabelName();
                 // Check to see it's already defined
 
-                if (hash_find(&h_keywords,label+(g_numLabels<<6))>=0)
+                if (EDUKE32_PREDICT_FALSE(hash_find(&h_keywords,label+(g_numLabels<<6))>=0))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_ISAKEYWORD);
                     continue;
                 }
 
-                if (hash_find(&h_gamevars,label+(g_numLabels<<6))>=0)
+                if (EDUKE32_PREDICT_FALSE(hash_find(&h_gamevars,label+(g_numLabels<<6))>=0))
                 {
                     g_numCompilerWarnings++;
                     C_ReportError(WARNING_NAMEMATCHESVAR);
                 }
 
-                if ((i = hash_find(&h_labels,label+(g_numLabels<<6))) >= 0)
+                if (EDUKE32_PREDICT_FALSE((i = hash_find(&h_labels,label+(g_numLabels<<6))) >= 0))
                 {
                     g_numCompilerWarnings++;
                     initprintf("%s:%d: warning: duplicate move `%s' ignored.\n",g_szScriptFileName,g_lineNumber,label+(g_numLabels<<6));
@@ -2953,40 +2949,39 @@ static int32_t C_ParseCommand(int32_t loop)
                 if (k == -1)
                     k = MAXVOLUMES;
 
-                if (k >= 0 && k < MAXVOLUMES+1) // if it's background or special music
-                {
-                    i = 0;
-                    // get the file name...
-                    while (C_GetKeyword() == -1)
-                    {
-                        C_SkipComments();
-
-                        j = 0;
-                        tempbuf[j] = '/';
-                        while (isaltok(*(textptr+j)))
-                        {
-                            tempbuf[j+1] = textptr[j];
-                            j++;
-                        }
-                        tempbuf[j+1] = '\0';
-
-                        C_DefineMusic(k, i, tempbuf);
-
-                        textptr += j;
-
-                        if (i >= MAXLEVELS)
-                            break;
-                        i++;
-                    }
-                }
-                else
+                if (EDUKE32_PREDICT_FALSE((unsigned)k >= MAXVOLUMES+1)) // if it's not background or special music
                 {
                     g_numCompilerErrors++;
                     C_ReportError(-1);
                     initprintf("%s:%d: error: volume number must be between 0 and MAXVOLUMES+1=%d.\n",
                                g_szScriptFileName, g_lineNumber, MAXVOLUMES+1);
+                    continue;
+
                 }
 
+                i = 0;
+                // get the file name...
+                while (C_GetKeyword() == -1)
+                {
+                    C_SkipComments();
+
+                    j = 0;
+                    tempbuf[j] = '/';
+                    while (isaltok(*(textptr+j)))
+                    {
+                        tempbuf[j+1] = textptr[j];
+                        j++;
+                    }
+                    tempbuf[j+1] = '\0';
+
+                    C_DefineMusic(k, i, tempbuf);
+
+                    textptr += j;
+
+                    if (i >= MAXLEVELS)
+                        break;
+                    i++;
+                }
             }
             continue;
 
@@ -3021,7 +3016,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 g_scriptPtr--;
                 C_GetNextLabelName();
 
-                if (hash_find(&h_keywords,label+(g_numLabels<<6))>=0)
+                if (EDUKE32_PREDICT_FALSE(hash_find(&h_keywords,label+(g_numLabels<<6))>=0))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_ISAKEYWORD);
@@ -3029,14 +3024,14 @@ static int32_t C_ParseCommand(int32_t loop)
                 }
 
                 i = hash_find(&h_gamevars,label+(g_numLabels<<6));
-                if (i>=0)
+                if (EDUKE32_PREDICT_FALSE(i>=0))
                 {
                     g_numCompilerWarnings++;
                     C_ReportError(WARNING_NAMEMATCHESVAR);
                 }
 
                 i = hash_find(&h_labels,label+(g_numLabels<<6));
-                if (i>=0)
+                if (EDUKE32_PREDICT_FALSE(i>=0))
                 {
                     g_numCompilerWarnings++;
                     initprintf("%s:%d: warning: duplicate ai `%s' ignored.\n",g_szScriptFileName,g_lineNumber,label+(g_numLabels<<6));
@@ -3055,7 +3050,8 @@ static int32_t C_ParseCommand(int32_t loop)
                         C_GetNextValue(LABEL_ACTION);
                     else if (j == 2)
                     {
-                        if ((C_GetNextValue(LABEL_MOVE|LABEL_DEFINE) == 0) && (*(g_scriptPtr-1) != 0) && (*(g_scriptPtr-1) != 1))
+                        if (EDUKE32_PREDICT_FALSE((C_GetNextValue(LABEL_MOVE|LABEL_DEFINE) == 0) &&
+                            (*(g_scriptPtr-1) != 0) && (*(g_scriptPtr-1) != 1)))
                         {
                             C_ReportError(-1);
                             bitptr[(g_scriptPtr-script-1)>>3] &= ~(1<<((g_scriptPtr-script-1)&7));
@@ -3101,7 +3097,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 C_GetNextLabelName();
                 // Check to see it's already defined
 
-                if (hash_find(&h_keywords,label+(g_numLabels<<6))>=0)
+                if (EDUKE32_PREDICT_FALSE(hash_find(&h_keywords,label+(g_numLabels<<6))>=0))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_ISAKEYWORD);
@@ -3109,14 +3105,14 @@ static int32_t C_ParseCommand(int32_t loop)
                 }
 
                 i = hash_find(&h_gamevars,label+(g_numLabels<<6));
-                if (i>=0)
+                if (EDUKE32_PREDICT_FALSE(i>=0))
                 {
                     g_numCompilerWarnings++;
                     C_ReportError(WARNING_NAMEMATCHESVAR);
                 }
 
                 i = hash_find(&h_labels,label+(g_numLabels<<6));
-                if (i>=0)
+                if (EDUKE32_PREDICT_FALSE(i>=0))
                 {
                     g_numCompilerWarnings++;
                     initprintf("%s:%d: warning: duplicate action `%s' ignored.\n",g_szScriptFileName,g_lineNumber,label+(g_numLabels<<6));
@@ -3145,7 +3141,7 @@ static int32_t C_ParseCommand(int32_t loop)
         case CON_ACTOR:
         case CON_USERACTOR:
         case CON_EVENTLOADACTOR:
-            if (g_processingState || g_parsingActorPtr)
+            if (EDUKE32_PREDICT_FALSE(g_processingState || g_parsingActorPtr))
             {
                 C_ReportError(ERROR_FOUNDWITHIN);
                 g_numCompilerErrors++;
@@ -3175,7 +3171,7 @@ static int32_t C_ParseCommand(int32_t loop)
             {
                 j = *g_scriptPtr;
 
-                if (j > 6 || (j&3)==3)
+                if (EDUKE32_PREDICT_FALSE(j > 6 || (j&3)==3))
                 {
                     C_ReportError(-1);
                     initprintf("%s:%d: warning: invalid useractor type. Must be 0, 1, 2"
@@ -3189,7 +3185,7 @@ static int32_t C_ParseCommand(int32_t loop)
             C_GetNextValue(LABEL_DEFINE);
             g_scriptPtr--;
 
-            if ((unsigned)*g_scriptPtr >= MAXTILES)
+            if (EDUKE32_PREDICT_FALSE((unsigned)*g_scriptPtr >= MAXTILES))
             {
                 C_ReportError(ERROR_EXCEEDSMAXTILES);
                 g_numCompilerErrors++;
@@ -3256,7 +3252,8 @@ static int32_t C_ParseCommand(int32_t loop)
                         break;
                     case 2:
                         // XXX: LABEL_MOVE|LABEL_DEFINE, what is this shit? compatibility?
-                        if ((C_GetNextValue(LABEL_MOVE|LABEL_DEFINE) == 0) && (*(g_scriptPtr-1) != 0) && (*(g_scriptPtr-1) != 1))
+                        // yep, it sure is :(
+                        if (EDUKE32_PREDICT_FALSE((C_GetNextValue(LABEL_MOVE|LABEL_DEFINE) == 0) && (*(g_scriptPtr-1) != 0) && (*(g_scriptPtr-1) != 1)))
                         {
                             C_ReportError(-1);
                             bitptr[(g_scriptPtr-script-1)>>3] &= ~(1<<((g_scriptPtr-script-1)&7));
@@ -3276,7 +3273,7 @@ static int32_t C_ParseCommand(int32_t loop)
             continue;
 
         case CON_ONEVENT:
-            if (g_processingState || g_parsingActorPtr)
+            if (EDUKE32_PREDICT_FALSE(g_processingState || g_parsingActorPtr))
             {
                 C_ReportError(ERROR_FOUNDWITHIN);
                 g_numCompilerErrors++;
@@ -3303,7 +3300,7 @@ static int32_t C_ParseCommand(int32_t loop)
             g_currentEvent = j;
             //Bsprintf(g_szBuf,"Adding Event for %d at %lX",j, g_parsingEventPtr);
             //AddLog(g_szBuf);
-            if (j > MAXGAMEEVENTS-1 || j < 0)
+            if (EDUKE32_PREDICT_FALSE((unsigned)j > MAXGAMEEVENTS-1))
             {
                 initprintf("%s:%d: error: invalid event ID.\n",g_szScriptFileName,g_lineNumber);
                 g_numCompilerErrors++;
@@ -3369,14 +3366,14 @@ static int32_t C_ParseCommand(int32_t loop)
             C_GetNextValue(LABEL_DEFINE);
             if (tw == CON_CSTAT)
             {
-                if (*(g_scriptPtr-1) == 32767)
+                if (EDUKE32_PREDICT_FALSE(*(g_scriptPtr-1) == 32767))
                 {
                     *(g_scriptPtr-1) = 32768;
                     C_ReportError(-1);
                     initprintf("%s:%d: warning: tried to set cstat 32767, using 32768 instead.\n",g_szScriptFileName,g_lineNumber);
                     g_numCompilerWarnings++;
                 }
-                else if ((*(g_scriptPtr-1) & 32) && (*(g_scriptPtr-1) & 16))
+                else if (EDUKE32_PREDICT_FALSE((*(g_scriptPtr-1) & 32) && (*(g_scriptPtr-1) & 16)))
                 {
                     i = *(g_scriptPtr-1);
                     *(g_scriptPtr-1) ^= 48;
@@ -3406,7 +3403,29 @@ static int32_t C_ParseCommand(int32_t loop)
             continue;
 
         case CON_ELSE:
-            if (g_checkingIfElse)
+            if (EDUKE32_PREDICT_FALSE(!g_checkingIfElse))
+            {
+                g_scriptPtr--;
+                tempscrptr = g_scriptPtr;
+                g_numCompilerWarnings++;
+                C_ReportError(-1);
+
+                initprintf("%s:%d: warning: found `else' with no `if'.\n",g_szScriptFileName,g_lineNumber);
+
+                if (C_GetKeyword() == CON_LEFTBRACE)
+                {
+                    C_GetNextKeyword();
+                    g_numBraces++;
+
+                    C_ParseCommand(1);
+                }
+                else C_ParseCommand(0);
+
+                g_scriptPtr = tempscrptr;
+
+                continue;
+            }
+
             {
                 intptr_t offset;
                 intptr_t lastScriptPtr = g_scriptPtr - &script[0] - 1;
@@ -3429,26 +3448,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 *tempscrptr = (intptr_t) g_scriptPtr;
                 bitptr[(tempscrptr-script)>>3] |= (BITPTR_POINTER<<((tempscrptr-script)&7));
             }
-            else
-            {
-                g_scriptPtr--;
-                tempscrptr = g_scriptPtr;
-                g_numCompilerWarnings++;
-                C_ReportError(-1);
-
-                initprintf("%s:%d: warning: found `else' with no `if'.\n",g_szScriptFileName,g_lineNumber);
-
-                if (C_GetKeyword() == CON_LEFTBRACE)
-                {
-                    C_GetNextKeyword();
-                    g_numBraces++;
-
-                    C_ParseCommand(1);
-                }
-                else C_ParseCommand(0);
-
-                g_scriptPtr = tempscrptr;
-            }
+            
             continue;
 
         case CON_SETSECTOR:
@@ -3481,7 +3481,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                     textptr++;
                 }
-                if (*textptr!='.')
+                if (EDUKE32_PREDICT_FALSE(*textptr!='.'))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYNTAXERROR);
@@ -3494,7 +3494,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                 lLabelID=C_GetLabelNameID(SectorLabels,&sectorH,Bstrtolower(label+(g_numLabels<<6)));
 
-                if (lLabelID == -1)
+                if (EDUKE32_PREDICT_FALSE(lLabelID == -1))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYMBOLNOTRECOGNIZED);
@@ -3611,7 +3611,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                     textptr++;
                 }
-                if (*textptr!='.')
+                if (EDUKE32_PREDICT_FALSE(*textptr!='.'))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYNTAXERROR);
@@ -3624,7 +3624,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                 lLabelID=C_GetLabelNameID(WallLabels,&wallH,Bstrtolower(label+(g_numLabels<<6)));
 
-                if (lLabelID == -1)
+                if (EDUKE32_PREDICT_FALSE(lLabelID == -1))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYMBOLNOTRECOGNIZED);
@@ -3673,7 +3673,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                     textptr++;
                 }
-                if (*textptr!='.')
+                if (EDUKE32_PREDICT_FALSE(*textptr!='.'))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYNTAXERROR);
@@ -3686,7 +3686,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                 lLabelID=C_GetLabelNameOffset(&playerH,Bstrtolower(label+(g_numLabels<<6)));
                 //printf("LabelID is %d\n",lLabelID);
-                if (lLabelID == -1)
+                if (EDUKE32_PREDICT_FALSE(lLabelID == -1))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYMBOLNOTRECOGNIZED);
@@ -3749,7 +3749,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                     textptr++;
                 }
-                if (*textptr!='.')
+                if (EDUKE32_PREDICT_FALSE(*textptr!='.'))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYNTAXERROR);
@@ -3762,7 +3762,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                 lLabelID=C_GetLabelNameOffset(&inputH,Bstrtolower(label+(g_numLabels<<6)));
                 //printf("LabelID is %d\n",lLabelID);
-                if (lLabelID == -1)
+                if (EDUKE32_PREDICT_FALSE(lLabelID == -1))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYMBOLNOTRECOGNIZED);
@@ -3800,7 +3800,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                     textptr++;
                 }
-                if (*textptr!='.')
+                if (EDUKE32_PREDICT_FALSE(*textptr!='.'))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYNTAXERROR);
@@ -3813,7 +3813,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                 lLabelID=C_GetLabelNameID(UserdefsLabels,&userdefH,Bstrtolower(label+(g_numLabels<<6)));
 
-                if (lLabelID == -1)
+                if (EDUKE32_PREDICT_FALSE(lLabelID == -1))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYMBOLNOTRECOGNIZED);
@@ -3862,7 +3862,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                     textptr++;
                 }
-                if (*textptr!='.')
+                if (EDUKE32_PREDICT_FALSE(*textptr!='.'))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYNTAXERROR);
@@ -3897,7 +3897,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 //printf("found label of \"%s\"\n",   label+(g_numLabels<<6));
 
                 // Check to see if it's a keyword
-                if (hash_find(&h_keywords,label+(g_numLabels<<6))>=0)
+                if (EDUKE32_PREDICT_FALSE(hash_find(&h_keywords,label+(g_numLabels<<6))>=0))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_ISAKEYWORD);
@@ -3906,14 +3906,14 @@ static int32_t C_ParseCommand(int32_t loop)
 
                 i=GetDefID(label+(g_numLabels<<6));
                 //printf("Label \"%s\" ID is %d\n",label+(g_numLabels<<6), i);
-                if (i<0)
+                if (EDUKE32_PREDICT_FALSE(i<0))
                 {
                     // not a defined DEF
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_NOTAGAMEVAR);
                     continue;
                 }
-                if (aGameVars[i].dwFlags & GAMEVAR_READONLY)
+                if (EDUKE32_PREDICT_FALSE(aGameVars[i].dwFlags & GAMEVAR_READONLY))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_VARREADONLY);
@@ -3923,8 +3923,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 switch (tw)
                 {
                 case CON_SETACTORVAR:
-                    {
-                        if (!(aGameVars[i].dwFlags & GAMEVAR_PERACTOR))
+                        if (EDUKE32_PREDICT_FALSE(!(aGameVars[i].dwFlags & GAMEVAR_PERACTOR)))
                         {
                             g_numCompilerErrors++;
                             C_ReportError(-1);
@@ -3932,10 +3931,8 @@ static int32_t C_ParseCommand(int32_t loop)
                             continue;
                         }
                         break;
-                    }
                 case CON_SETPLAYERVAR:
-                    {
-                        if (!(aGameVars[i].dwFlags & GAMEVAR_PERPLAYER))
+                        if (EDUKE32_PREDICT_FALSE(!(aGameVars[i].dwFlags & GAMEVAR_PERPLAYER)))
                         {
                             g_numCompilerErrors++;
                             C_ReportError(-1);
@@ -3943,7 +3940,6 @@ static int32_t C_ParseCommand(int32_t loop)
                             continue;
                         }
                         break;
-                    }
                 }
 
                 bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
@@ -3993,7 +3989,7 @@ static int32_t C_ParseCommand(int32_t loop)
                     textptr++;
                 }
 
-                if (*textptr != '.')
+                if (EDUKE32_PREDICT_FALSE(*textptr != '.'))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYNTAXERROR);
@@ -4007,7 +4003,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                 lLabelID=C_GetLabelNameOffset(&actorH,Bstrtolower(label+(g_numLabels<<6)));
                 //printf("LabelID is %d\n",lLabelID);
-                if (lLabelID == -1)
+                if (EDUKE32_PREDICT_FALSE(lLabelID == -1))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYMBOLNOTRECOGNIZED);
@@ -4041,7 +4037,7 @@ static int32_t C_ParseCommand(int32_t loop)
             {
                 int32_t lLabelID;
 #if 0
-                if (g_currentEvent != EVENT_ANIMATESPRITES)
+                if (unlikely(g_currentEvent != EVENT_ANIMATESPRITES))
                 {
                     C_ReportError(-1);
                     initprintf("%s:%d: warning: found `%s' outside of EVENT_ANIMATESPRITES\n",g_szScriptFileName,g_lineNumber,tempbuf);
@@ -4073,7 +4069,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                     textptr++;
                 }
-                if (*textptr!='.')
+                if (EDUKE32_PREDICT_FALSE(*textptr!='.'))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYNTAXERROR);
@@ -4086,7 +4082,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
                 lLabelID=C_GetLabelNameOffset(&tspriteH,Bstrtolower(label+(g_numLabels<<6)));
                 //printf("LabelID is %d\n",lLabelID);
-                if (lLabelID == -1)
+                if (EDUKE32_PREDICT_FALSE(lLabelID == -1))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(ERROR_SYMBOLNOTRECOGNIZED);
@@ -4168,7 +4164,7 @@ static int32_t C_ParseCommand(int32_t loop)
             //printf("We are enhanced, baby...\n");
             C_GetNextValue(LABEL_DEFINE);
             g_scriptPtr--;
-            if (*g_scriptPtr > BYTEVERSION_JF)
+            if (EDUKE32_PREDICT_FALSE(*g_scriptPtr > BYTEVERSION_JF))
             {
                 g_numCompilerWarnings++;
                 initprintf("%s:%d: warning: need build %d, found build %d\n",g_szScriptFileName,g_lineNumber,k,BYTEVERSION_JF);
@@ -4177,7 +4173,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
         case CON_DYNAMICREMAP:
             g_scriptPtr--;
-            if (g_dynamicTileMapping)
+            if (EDUKE32_PREDICT_FALSE(g_dynamicTileMapping))
             {
                 initprintf("%s:%d: warning: duplicate dynamicremap statement\n",g_szScriptFileName,g_lineNumber);
                 g_numCompilerWarnings++;
@@ -4197,7 +4193,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
         case CON_DYNAMICSOUNDREMAP:
             g_scriptPtr--;
-            if (g_dynamicSoundMapping)
+            if (EDUKE32_PREDICT_FALSE(g_dynamicSoundMapping))
             {
                 initprintf("%s:%d: warning: duplicate dynamicsoundremap statement\n",g_szScriptFileName,g_lineNumber);
                 g_numCompilerWarnings++;
@@ -4281,36 +4277,31 @@ static int32_t C_ParseCommand(int32_t loop)
         case CON_READARRAYFROMFILE:
             C_GetNextLabelName();
             i=GetADefID(label+(g_numLabels<<6));
-            if (i > (-1))
-            {
-                bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
-                *g_scriptPtr++=i;
-            }
-            else
+            if (EDUKE32_PREDICT_FALSE(i < 0))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_NOTAGAMEARRAY);
                 return 1;
             }
+
+            bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
+            *g_scriptPtr++=i;
+
             C_GetNextValue(LABEL_DEFINE);
             continue;
         case CON_COPY:
             C_GetNextLabelName();
             i=GetADefID(label+(g_numLabels<<6));
-            if (i > (-1))
-            {
-                bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
-                *g_scriptPtr++=i;
-            }
-            else
+            if (EDUKE32_PREDICT_FALSE(i < 0))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_NOTAGAMEARRAY);
                 return 1;
             }
+            bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
+            *g_scriptPtr++=i;
             C_SkipComments();// skip comments and whitespace
-            if (*textptr != '[')
-
+            if (EDUKE32_PREDICT_FALSE(*textptr != '['))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_GAMEARRAYBNO);
@@ -4319,7 +4310,7 @@ static int32_t C_ParseCommand(int32_t loop)
             textptr++;
             C_GetNextVar();
             C_SkipComments();// skip comments and whitespace
-            if (*textptr != ']')
+            if (EDUKE32_PREDICT_FALSE(*textptr != ']'))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_GAMEARRAYBNC);
@@ -4329,27 +4320,25 @@ static int32_t C_ParseCommand(int32_t loop)
         case CON_SETARRAY:
             C_GetNextLabelName();
             i=GetADefID(label+(g_numLabels<<6));
-            if (i > (-1))
-            {
-                bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
-                *g_scriptPtr++=i;
-
-                if (aGameArrays[i].dwFlags & GAMEARRAY_READONLY)
-                {
-                    C_ReportError(ERROR_ARRAYREADONLY);
-                    g_numCompilerErrors++;
-                    return 1;
-                }
-            }
-            else
+            if (EDUKE32_PREDICT_FALSE(i < 0))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_NOTAGAMEARRAY);
                 return 1;
             }
 
+            bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
+            *g_scriptPtr++=i;
+
+            if (EDUKE32_PREDICT_FALSE(aGameArrays[i].dwFlags & GAMEARRAY_READONLY))
+            {
+                C_ReportError(ERROR_ARRAYREADONLY);
+                g_numCompilerErrors++;
+                return 1;
+            }
+
             C_SkipComments();// skip comments and whitespace
-            if (*textptr != '[')
+            if (EDUKE32_PREDICT_FALSE(*textptr != '['))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_GAMEARRAYBNO);
@@ -4358,7 +4347,7 @@ static int32_t C_ParseCommand(int32_t loop)
             textptr++;
             C_GetNextVar();
             C_SkipComments();// skip comments and whitespace
-            if (*textptr != ']')
+            if (EDUKE32_PREDICT_FALSE(*textptr != ']'))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_GAMEARRAYBNC);
@@ -4371,24 +4360,22 @@ static int32_t C_ParseCommand(int32_t loop)
         case CON_RESIZEARRAY:
             C_GetNextLabelName();
             i=GetADefID(label+(g_numLabels<<6));
-            if (i >= 0)
-            {
-                bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
-                *g_scriptPtr++ = i;
-                if (tw==CON_RESIZEARRAY && (aGameArrays[i].dwFlags & GAMEARRAY_TYPE_MASK))
-                {
-                    C_ReportError(-1);
-                    initprintf("can't resize system array `%s'.", label+(g_numLabels<<6));
-                    return 1;
-                }
-            }
-            else
+            if (EDUKE32_PREDICT_FALSE(i < 0))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_NOTAGAMEARRAY);
                 return 1;
             }
 
+            bitptr[(g_scriptPtr-script)>>3] &= ~(BITPTR_POINTER<<((g_scriptPtr-script)&7));
+            *g_scriptPtr++ = i;
+            if (tw==CON_RESIZEARRAY && (aGameArrays[i].dwFlags & GAMEARRAY_TYPE_MASK))
+            {
+                C_ReportError(-1);
+                initprintf("can't resize system array `%s'.", label+(g_numLabels<<6));
+                return 1;
+            }
+
             C_SkipComments();
             C_GetNextVarType(tw==CON_GETARRAYSIZE ? GAMEVAR_READONLY : 0);
             continue;
@@ -4462,7 +4449,7 @@ static int32_t C_ParseCommand(int32_t loop)
         case CON_LOADMAPSTATE:
             if (tw != CON_FLASH)
             {
-                if (g_currentEvent == EVENT_ANIMATESPRITES)
+                if (EDUKE32_PREDICT_FALSE(g_currentEvent == EVENT_ANIMATESPRITES))
                 {
                     initprintf("%s:%d: warning: found `%s' inside EVENT_ANIMATESPRITES\n",
                                g_szScriptFileName,g_lineNumber,tempbuf);
@@ -4492,7 +4479,7 @@ static int32_t C_ParseCommand(int32_t loop)
             {
                 int32_t y, z;
 
-                if (g_processingState || g_parsingActorPtr)
+                if (EDUKE32_PREDICT_FALSE(g_processingState || g_parsingActorPtr))
                 {
                     C_ReportError(ERROR_FOUNDWITHIN);
                     g_numCompilerErrors++;
@@ -4508,7 +4495,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 C_GetNextValue(LABEL_DEFINE);
                 z = *(g_scriptPtr-1);
 
-                if ((unsigned)j >= MAXTILES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXTILES))
                 {
                     C_ReportError(ERROR_EXCEEDSMAXTILES);
                     g_numCompilerErrors++;
@@ -4531,7 +4518,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 C_GetNextValue(LABEL_DEFINE);
                 g_scriptPtr--;
 
-                if ((unsigned)j >= MAXTILES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXTILES))
                 {
                     C_ReportError(ERROR_EXCEEDSMAXTILES);
                     g_numCompilerErrors++;
@@ -4550,7 +4537,7 @@ static int32_t C_ParseCommand(int32_t loop)
         case CON_SPRITENOSHADE:
         case CON_SPRITENOPAL:
         case CON_PRECACHE:
-            if (g_processingState || g_parsingActorPtr)
+            if (EDUKE32_PREDICT_FALSE(g_processingState || g_parsingActorPtr))
             {
                 C_ReportError(ERROR_FOUNDWITHIN);
                 g_numCompilerErrors++;
@@ -4562,7 +4549,7 @@ static int32_t C_ParseCommand(int32_t loop)
             g_scriptPtr--;
             j = *g_scriptPtr;
 
-            if ((unsigned)j >= MAXTILES)
+            if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXTILES))
             {
                 C_ReportError(ERROR_EXCEEDSMAXTILES);
                 g_numCompilerErrors++;
@@ -4587,7 +4574,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 C_GetNextValue(LABEL_DEFINE);
                 g_scriptPtr--;
                 i = *g_scriptPtr;
-                if ((unsigned)i >= MAXTILES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)i >= MAXTILES))
                 {
                     C_ReportError(ERROR_EXCEEDSMAXTILES);
                     g_numCompilerErrors++;
@@ -4711,7 +4698,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
         case CON_ROTATESPRITE16:
         case CON_ROTATESPRITE:
-            if (g_parsingEventPtr == NULL && g_processingState == 0)
+            if (EDUKE32_PREDICT_FALSE(g_parsingEventPtr == NULL && g_processingState == 0))
             {
                 C_ReportError(ERROR_EVENTONLY);
                 g_numCompilerErrors++;
@@ -4727,7 +4714,7 @@ static int32_t C_ParseCommand(int32_t loop)
             continue;
 
         case CON_ROTATESPRITEA:
-            if (g_parsingEventPtr == NULL && g_processingState == 0)
+            if (EDUKE32_PREDICT_FALSE(g_parsingEventPtr == NULL && g_processingState == 0))
             {
                 C_ReportError(ERROR_EVENTONLY);
                 g_numCompilerErrors++;
@@ -4738,7 +4725,7 @@ static int32_t C_ParseCommand(int32_t loop)
 
         case CON_SHOWVIEW:
         case CON_SHOWVIEWUNBIASED:
-            if (g_parsingEventPtr == NULL && g_processingState == 0)
+            if (EDUKE32_PREDICT_FALSE(g_parsingEventPtr == NULL && g_processingState == 0))
             {
                 C_ReportError(ERROR_EVENTONLY);
                 g_numCompilerErrors++;
@@ -4824,7 +4811,7 @@ static int32_t C_ParseCommand(int32_t loop)
         case CON_DIGITALNUMBER:
         case CON_DIGITALNUMBERZ:
         case CON_SCREENTEXT:
-            if (g_parsingEventPtr == NULL && g_processingState == 0)
+            if (EDUKE32_PREDICT_FALSE(g_parsingEventPtr == NULL && g_processingState == 0))
             {
                 C_ReportError(ERROR_EVENTONLY);
                 g_numCompilerErrors++;
@@ -4858,7 +4845,7 @@ static int32_t C_ParseCommand(int32_t loop)
         case CON_MYOSPAL:
         case CON_MYOSX:
         case CON_MYOSPALX:
-            if (g_parsingEventPtr == NULL && g_processingState == 0)
+            if (EDUKE32_PREDICT_FALSE(g_parsingEventPtr == NULL && g_processingState == 0))
             {
                 C_ReportError(ERROR_EVENTONLY);
                 g_numCompilerErrors++;
@@ -4997,7 +4984,7 @@ static int32_t C_ParseCommand(int32_t loop)
                 intptr_t tempoffset = 0;
                 //AddLog("Found Case");
 
-                if (g_checkingSwitch < 1)
+                if (EDUKE32_PREDICT_FALSE(g_checkingSwitch < 1))
                 {
                     g_numCompilerErrors++;
                     C_ReportError(-1);
@@ -5023,7 +5010,7 @@ repeatcase:
                 if (g_caseScriptPtr)
                 {
                     for (i=(g_numCases/2)-1; i>=0; i--)
-                        if (g_caseScriptPtr[i*2+1]==j)
+                        if (EDUKE32_PREDICT_FALSE(g_caseScriptPtr[i*2+1]==j))
                         {
                             g_numCompilerWarnings++;
                             C_ReportError(WARNING_DUPLICATECASE);
@@ -5072,14 +5059,14 @@ repeatcase:
             if (*textptr == ':')
                 textptr++;
 
-            if (g_checkingSwitch<1)
+            if (EDUKE32_PREDICT_FALSE(g_checkingSwitch<1))
             {
                 g_numCompilerErrors++;
                 C_ReportError(-1);
                 initprintf("%s:%d: error: found `default' statement when not in switch\n",g_szScriptFileName,g_lineNumber);
                 return 1;
             }
-            if (g_caseScriptPtr && g_caseScriptPtr[0]!=0)
+            if (EDUKE32_PREDICT_FALSE(g_caseScriptPtr && g_caseScriptPtr[0]!=0))
             {
                 // duplicate default statement
                 g_numCompilerErrors++;
@@ -5098,7 +5085,7 @@ repeatcase:
 
         case CON_ENDSWITCH:
             //AddLog("End Switch");
-            if (--g_checkingSwitch < 0)
+            if (EDUKE32_PREDICT_FALSE(--g_checkingSwitch < 0))
             {
                 g_numCompilerErrors++;
                 C_ReportError(-1);
@@ -5201,7 +5188,7 @@ repeatcase:
                     C_GetNextValue(LABEL_ACTION);
                     break;
                 case CON_IFMOVE:
-                    if ((C_GetNextValue(LABEL_MOVE|LABEL_DEFINE) == 0) && (*(g_scriptPtr-1) != 0) && (*(g_scriptPtr-1) != 1))
+                    if (EDUKE32_PREDICT_FALSE((C_GetNextValue(LABEL_MOVE|LABEL_DEFINE) == 0) && (*(g_scriptPtr-1) != 0) && (*(g_scriptPtr-1) != 1)))
                     {
                         C_ReportError(-1);
                         *(g_scriptPtr-1) = 0;
@@ -5311,7 +5298,7 @@ repeatcase:
             }
 
         case CON_LEFTBRACE:
-            if (!(g_processingState || g_parsingActorPtr || g_parsingEventPtr))
+            if (EDUKE32_PREDICT_FALSE(!(g_processingState || g_parsingActorPtr || g_parsingEventPtr)))
             {
                 g_numCompilerErrors++;
                 C_ReportError(ERROR_SYNTAXERROR);
@@ -5343,7 +5330,7 @@ repeatcase:
                 return 1;
             }
 
-            if (g_numBraces < 0)
+            if (EDUKE32_PREDICT_FALSE(g_numBraces < 0))
             {
                 if (g_checkingSwitch)
                 {
@@ -5374,7 +5361,7 @@ repeatcase:
             j = *g_scriptPtr;
             C_SkipComments();
 
-            if (j < 0 || j > MAXVOLUMES-1)
+            if (EDUKE32_PREDICT_FALSE((unsigned)j > MAXVOLUMES-1))
             {
                 initprintf("%s:%d: error: volume number exceeds maximum volume count.\n",
                     g_szScriptFileName,g_lineNumber);
@@ -5389,7 +5376,7 @@ repeatcase:
             {
                 EpisodeNames[j][i] = *textptr;
                 textptr++,i++;
-                if (i >= (signed)sizeof(EpisodeNames[j])-1)
+                if (EDUKE32_PREDICT_FALSE(i >= (signed)sizeof(EpisodeNames[j])-1))
                 {
                     initprintf("%s:%d: warning: truncating volume name to %d characters.\n",
                         g_szScriptFileName,g_lineNumber,(int32_t)sizeof(EpisodeNames[j])-1);
@@ -5409,7 +5396,7 @@ repeatcase:
             j = *g_scriptPtr;
             C_SkipComments();
 
-            if (j < 0 || j > NUMGAMEFUNCTIONS-1)
+            if (EDUKE32_PREDICT_FALSE((unsigned)j > NUMGAMEFUNCTIONS-1))
             {
                 initprintf("%s:%d: error: function number exceeds number of game functions.\n",
                     g_szScriptFileName,g_lineNumber);
@@ -5425,7 +5412,7 @@ repeatcase:
                 gamefunctions[j][i] = *textptr;
                 keydefaults[j*3][i] = *textptr;
                 textptr++,i++;
-                if (*textptr != 0x0a && *textptr != 0x0d && ispecial(*textptr))
+                if (EDUKE32_PREDICT_FALSE(*textptr != 0x0a && *textptr != 0x0d && ispecial(*textptr)))
                 {
                     initprintf("%s:%d: warning: invalid character in function name.\n",
                         g_szScriptFileName,g_lineNumber);
@@ -5433,7 +5420,7 @@ repeatcase:
                     C_NextLine();
                     break;
                 }
-                if (i >= MAXGAMEFUNCLEN-1)
+                if (EDUKE32_PREDICT_FALSE(i >= MAXGAMEFUNCLEN-1))
                 {
                     initprintf("%s:%d: warning: truncating function name to %d characters.\n",
                         g_szScriptFileName,g_lineNumber,MAXGAMEFUNCLEN);
@@ -5461,7 +5448,7 @@ repeatcase:
             j = *g_scriptPtr;
             C_SkipComments();
 
-            if (j < 0 || j >= MAXSKILLS)
+            if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXSKILLS))
             {
                 initprintf("%s:%d: error: skill number exceeds maximum skill count %d.\n",
                            g_szScriptFileName,g_lineNumber, MAXSKILLS);
@@ -5476,7 +5463,7 @@ repeatcase:
             {
                 SkillNames[j][i] = *textptr;
                 textptr++,i++;
-                if (i >= (signed)sizeof(SkillNames[j])-1)
+                if (EDUKE32_PREDICT_FALSE(i >= (signed)sizeof(SkillNames[j])-1))
                 {
                     initprintf("%s:%d: warning: truncating skill name to %d characters.\n",
                         g_szScriptFileName,g_lineNumber,(int32_t)sizeof(SkillNames[j])-1);
@@ -5508,7 +5495,7 @@ repeatcase:
                 {
                     gamename[i] = *textptr;
                     textptr++,i++;
-                    if (i >= (signed)sizeof(gamename)-1)
+                    if (EDUKE32_PREDICT_FALSE(i >= (signed)sizeof(gamename)-1))
                     {
                         initprintf("%s:%d: warning: truncating game name to %d characters.\n",
                             g_szScriptFileName,g_lineNumber,(int32_t)sizeof(gamename)-1);
@@ -5569,7 +5556,7 @@ repeatcase:
 
             C_SkipComments();
 
-            if (j < 0 || j > MAXGAMETYPES-1)
+            if (EDUKE32_PREDICT_FALSE((unsigned)j > MAXGAMETYPES-1))
             {
                 initprintf("%s:%d: error: gametype number exceeds maximum gametype count.\n",g_szScriptFileName,g_lineNumber);
                 g_numCompilerErrors++;
@@ -5584,7 +5571,7 @@ repeatcase:
             {
                 GametypeNames[j][i] = *textptr;
                 textptr++,i++;
-                if (i >= (signed)sizeof(GametypeNames[j])-1)
+                if (EDUKE32_PREDICT_FALSE(i >= (signed)sizeof(GametypeNames[j])-1))
                 {
                     initprintf("%s:%d: warning: truncating gametype name to %d characters.\n",
                         g_szScriptFileName,g_lineNumber,(int32_t)sizeof(GametypeNames[j])-1);
@@ -5606,14 +5593,14 @@ repeatcase:
             k = *g_scriptPtr;
             C_SkipComments();
 
-            if (j < 0 || j > MAXVOLUMES-1)
+            if (EDUKE32_PREDICT_FALSE((unsigned)j > MAXVOLUMES-1))
             {
                 initprintf("%s:%d: error: volume number exceeds maximum volume count.\n",g_szScriptFileName,g_lineNumber);
                 g_numCompilerErrors++;
                 C_NextLine();
                 continue;
             }
-            if (k < 0 || k > MAXLEVELS-1)
+            if (EDUKE32_PREDICT_FALSE((unsigned)k > MAXLEVELS-1))
             {
                 initprintf("%s:%d: error: level number exceeds maximum number of levels per episode.\n",g_szScriptFileName,g_lineNumber);
                 g_numCompilerErrors++;
@@ -5629,7 +5616,7 @@ repeatcase:
             {
                 tempbuf[i+1] = *textptr;
                 textptr++,i++;
-                if (i >= BMAX_PATH)
+                if (EDUKE32_PREDICT_FALSE(i >= BMAX_PATH))
                 {
                     initprintf("%s:%d: error: level file name exceeds limit of %d characters.\n",g_szScriptFileName,g_lineNumber,BMAX_PATH);
                     g_numCompilerErrors++;
@@ -5675,7 +5662,7 @@ repeatcase:
             {
                 tempbuf[i] = *textptr;
                 textptr++,i++;
-                if (i >= 32)
+                if (EDUKE32_PREDICT_FALSE(i >= 32))
                 {
                     initprintf("%s:%d: warning: truncating level name to %d characters.\n",
                         g_szScriptFileName,g_lineNumber,32);
@@ -5709,7 +5696,7 @@ repeatcase:
 
             k = *(g_scriptPtr-1);
 
-            if ((unsigned)k >= MAXQUOTES)
+            if (EDUKE32_PREDICT_FALSE((unsigned)k >= MAXQUOTES))
             {
                 initprintf("%s:%d: error: quote number exceeds limit of %d.\n",g_szScriptFileName,g_lineNumber,MAXQUOTES);
                 g_numCompilerErrors++;
@@ -5749,7 +5736,7 @@ repeatcase:
                 else
                     *(ScriptQuoteRedefinitions[g_numQuoteRedefinitions]+i) = *textptr;
                 textptr++,i++;
-                if (i >= MAXQUOTELEN-1)
+                if (EDUKE32_PREDICT_FALSE(i >= MAXQUOTELEN-1))
                 {
                     initprintf("%s:%d: warning: truncating quote text to %d characters.\n",g_szScriptFileName,g_lineNumber,MAXQUOTELEN-1);
                     g_numCompilerWarnings++;
@@ -5786,7 +5773,7 @@ repeatcase:
             C_GetNextValue(LABEL_DEFINE);
             k = *(g_scriptPtr-1);
 
-            if (k > 25)
+            if (EDUKE32_PREDICT_FALSE(k > 25))
             {
                 initprintf("%s:%d: error: cheat redefinition attempts to redefine nonexistent cheat.\n",g_szScriptFileName,g_lineNumber);
                 g_numCompilerErrors++;
@@ -5801,7 +5788,7 @@ repeatcase:
             {
                 CheatStrings[k][i] = *textptr;
                 textptr++,i++;
-                if (i >= (signed)sizeof(CheatStrings[k])-1)
+                if (EDUKE32_PREDICT_FALSE(i >= (signed)sizeof(CheatStrings[k])-1))
                 {
                     initprintf("%s:%d: warning: truncating cheat string to %d characters.\n",
                         g_szScriptFileName,g_lineNumber,(signed)sizeof(CheatStrings[k])-1);
@@ -5822,7 +5809,7 @@ repeatcase:
             j = hash_find(&h_labels,tempbuf);
 
             k = *(g_scriptPtr-1);
-            if ((unsigned)k >= MAXSOUNDS)
+            if (EDUKE32_PREDICT_FALSE((unsigned)k >= MAXSOUNDS))
             {
                 initprintf("%s:%d: error: exceeded sound limit of %d.\n",g_szScriptFileName,g_lineNumber,MAXSOUNDS);
                 g_numCompilerErrors++;
@@ -5840,7 +5827,7 @@ repeatcase:
                 while (*textptr && *textptr != '\"')
                 {
                     g_sounds[k].filename[i++] = *textptr++;
-                    if (i >= BMAX_PATH-1)
+                    if (EDUKE32_PREDICT_FALSE(i >= BMAX_PATH-1))
                     {
                         initprintf("%s:%d: error: sound filename exceeds limit of %d characters.\n",g_szScriptFileName,g_lineNumber,BMAX_PATH-1);
                         g_numCompilerErrors++;
@@ -5853,7 +5840,7 @@ repeatcase:
             else while (*textptr != ' ' && *textptr != '\t' && *textptr != '\r' && *textptr != '\n')
             {
                 g_sounds[k].filename[i++] = *textptr++;
-                if (i >= BMAX_PATH-1)
+                if (EDUKE32_PREDICT_FALSE(i >= BMAX_PATH-1))
                 {
                     initprintf("%s:%d: error: sound filename exceeds limit of %d characters.\n",g_szScriptFileName,g_lineNumber,BMAX_PATH-1);
                     g_numCompilerErrors++;
@@ -5890,24 +5877,24 @@ repeatcase:
 
         case CON_ENDEVENT:
 
-            if (g_parsingEventPtr == NULL)
+            if (EDUKE32_PREDICT_FALSE(g_parsingEventPtr == NULL))
             {
                 C_ReportError(-1);
                 initprintf("%s:%d: error: found `endevent' without open `onevent'.\n",g_szScriptFileName,g_lineNumber);
                 g_numCompilerErrors++;
             }
-            if (g_numBraces > 0)
+            if (EDUKE32_PREDICT_FALSE(g_numBraces > 0))
             {
                 C_ReportError(ERROR_OPENBRACKET);
                 g_numCompilerErrors++;
             }
-            if (g_numBraces < 0)
+            else if (EDUKE32_PREDICT_FALSE(g_numBraces < 0))
             {
                 C_ReportError(ERROR_CLOSEBRACKET);
                 g_numCompilerErrors++;
             }
             // if event has already been declared then put a jump in instead
-            if (previous_event)
+            if (EDUKE32_PREDICT_FALSE((intptr_t)previous_event))
             {
                 g_scriptPtr--;
                 *(g_scriptPtr++) = CON_JUMP;
@@ -5922,13 +5909,13 @@ repeatcase:
             continue;
 
         case CON_ENDA:
-            if (g_parsingActorPtr == NULL)
+            if (EDUKE32_PREDICT_FALSE(g_parsingActorPtr == NULL))
             {
                 C_ReportError(-1);
                 initprintf("%s:%d: error: found `enda' without open `actor'.\n",g_szScriptFileName,g_lineNumber);
                 g_numCompilerErrors++;
             }
-            if (g_numBraces != 0)
+            if (EDUKE32_PREDICT_FALSE(g_numBraces != 0))
             {
                 C_ReportError(g_numBraces > 0 ? ERROR_OPENBRACKET : ERROR_CLOSEBRACKET);
                 g_numCompilerErrors++;
@@ -5941,7 +5928,7 @@ repeatcase:
         case CON_BREAK:
             if (g_checkingSwitch)
             {
-                if (otw == CON_BREAK)
+                if (EDUKE32_PREDICT_FALSE(otw == CON_BREAK))
                 {
                     C_ReportError(-1);
                     initprintf("%s:%d: warning: duplicate `break'.\n",g_szScriptFileName, g_lineNumber);
@@ -5986,7 +5973,7 @@ repeatcase:
         case CON_NULLOP:
             if (tw == CON_NULLOP)
             {
-                if (C_GetKeyword() != CON_ELSE)
+                if (EDUKE32_PREDICT_FALSE(C_GetKeyword() != CON_ELSE))
                 {
                     C_ReportError(-1);
                     g_numCompilerWarnings++;
diff --git a/polymer/eduke32/source/gameexec.c b/polymer/eduke32/source/gameexec.c
index 7d60d8ce4..82e179a1e 100644
--- a/polymer/eduke32/source/gameexec.c
+++ b/polymer/eduke32/source/gameexec.c
@@ -106,11 +106,11 @@ void VM_ScriptInfo(void)
 
 static void VM_KillIt(int32_t iActor, int32_t iPlayer)
 {
-    if ((unsigned) iActor >= MAXSPRITES)
+    if (EDUKE32_PREDICT_FALSE((unsigned) iActor >= MAXSPRITES))
         return;
 
     // if player was set to squish, first stop that...
-    if (iPlayer >= 0 && g_player[iPlayer].ps->actorsqu == iActor)
+    if (EDUKE32_PREDICT_FALSE(iPlayer >= 0 && g_player[iPlayer].ps->actorsqu == iActor))
         g_player[iPlayer].ps->actorsqu = -1;
 
     A_DeleteSprite(iActor);
@@ -165,11 +165,11 @@ int32_t VM_OnEvent_(int32_t iEventID, int32_t iActor, int32_t iPlayer, int32_t l
     return iReturn;
 }
 
-static inline int32_t VM_CheckSquished(void)
+static int32_t VM_CheckSquished(void)
 {
     const sectortype *sc = &sector[vm.g_sp->sectnum];
 
-    if ((vm.g_sp->picnum == APLAYER && ud.noclip) || sc->lotag == ST_23_SWINGING_DOOR)
+    if (sc->lotag == ST_23_SWINGING_DOOR || EDUKE32_PREDICT_FALSE(vm.g_sp->picnum == APLAYER && ud.noclip))
         return 0;
 
     {
@@ -195,7 +195,7 @@ static inline int32_t VM_CheckSquished(void)
     if (A_CheckEnemySprite(vm.g_sp))
         vm.g_sp->xvel = 0;
 
-    if (vm.g_sp->pal == 1) // frozen
+    if (EDUKE32_PREDICT_FALSE(vm.g_sp->pal == 1)) // frozen
     {
         actor[vm.g_i].picnum = SHOTSPARK1;
         actor[vm.g_i].extra = 1;
@@ -328,51 +328,41 @@ void A_GetZLimits(int32_t iActor)
 {
     spritetype *s = &sprite[iActor];
 
-//    if (s->statnum == STAT_PLAYER || s->statnum == STAT_STANDABLE || s->statnum == STAT_ZOMBIEACTOR || s->statnum == STAT_ACTOR || s->statnum == STAT_PROJECTILE)
+    int32_t hz,lz,zr = 127;
+    int32_t cstat = s->cstat;
+
+    s->cstat = 0;
+
+    if (s->statnum == STAT_PROJECTILE)
+        zr = 4;
+
+    s->z -= ZOFFSET;
+    getzrange((vec3_t *)s,s->sectnum,&actor[iActor].ceilingz,&hz,&actor[iActor].floorz,&lz,zr,CLIPMASK0);
+    s->z += ZOFFSET;
+
+    s->cstat = cstat;
+
+    actor[iActor].flags &= ~SFLAG_NOFLOORSHADOW;
+
+    if ((lz&49152) == 49152 && (sprite[lz&(MAXSPRITES-1)].cstat&48) == 0)
     {
-        int32_t hz,lz,zr = 127;
-        int32_t cstat = s->cstat;
+        const spritetype *hitspr = &sprite[lz&(MAXSPRITES-1)];
 
-        s->cstat = 0;
+        lz &= (MAXSPRITES-1);
 
-        if (s->statnum == STAT_PROJECTILE)
-            zr = 4;
-
-        s->z -= ZOFFSET;
-        getzrange((vec3_t *)s,s->sectnum,&actor[iActor].ceilingz,&hz,&actor[iActor].floorz,&lz,zr,CLIPMASK0);
-        s->z += ZOFFSET;
-
-        s->cstat = cstat;
-
-        actor[iActor].flags &= ~SFLAG_NOFLOORSHADOW;
-
-        if ((lz&49152) == 49152 && (sprite[lz&(MAXSPRITES-1)].cstat&48) == 0)
+        if ((A_CheckEnemySprite(hitspr) && hitspr->pal != 1 && s->statnum != STAT_PROJECTILE)
+                || (hitspr->picnum == APLAYER && A_CheckEnemySprite(s)))
         {
-            const spritetype *hitspr = &sprite[lz&(MAXSPRITES-1)];
-
-            lz &= (MAXSPRITES-1);
-
-            if ((A_CheckEnemySprite(hitspr) && hitspr->pal != 1 && s->statnum != STAT_PROJECTILE)
-                    || (hitspr->picnum == APLAYER && A_CheckEnemySprite(s)))
-            {
-                actor[iActor].flags |= SFLAG_NOFLOORSHADOW;  // No shadows on actors
-                s->xvel = -256;
-                A_SetSprite(iActor,CLIPMASK0);
-            }
-            else if (s->statnum == STAT_PROJECTILE && hitspr->picnum == APLAYER && s->owner==lz)
-            {
-                actor[iActor].ceilingz = sector[s->sectnum].ceilingz;
-                actor[iActor].floorz   = sector[s->sectnum].floorz;
-            }
+            actor[iActor].flags |= SFLAG_NOFLOORSHADOW;  // No shadows on actors
+            s->xvel = -256;
+            A_SetSprite(iActor,CLIPMASK0);
         }
-    }
-    /*
-        else
+        else if (s->statnum == STAT_PROJECTILE && hitspr->picnum == APLAYER && s->owner==lz)
         {
             actor[iActor].ceilingz = sector[s->sectnum].ceilingz;
             actor[iActor].floorz   = sector[s->sectnum].floorz;
         }
-    */
+    }
 }
 
 void A_Fall(int32_t iActor)
@@ -382,13 +372,10 @@ void A_Fall(int32_t iActor)
 #ifdef YAX_ENABLE
     int16_t fbunch;
 #endif
-    if (G_CheckForSpaceFloor(s->sectnum))
+    if (EDUKE32_PREDICT_FALSE(G_CheckForSpaceFloor(s->sectnum)))
         c = 0;
-    else
-    {
-        if (G_CheckForSpaceCeiling(s->sectnum) || sector[s->sectnum].lotag == ST_2_UNDERWATER)
-            c = g_spriteGravity/6;
-    }
+    else if (sector[s->sectnum].lotag == ST_2_UNDERWATER || EDUKE32_PREDICT_FALSE(G_CheckForSpaceCeiling(s->sectnum)))
+        c = g_spriteGravity/6;
 
     if (s->statnum == STAT_ACTOR || s->statnum == STAT_PLAYER || s->statnum == STAT_ZOMBIEACTOR || s->statnum == STAT_STANDABLE)
     {
@@ -406,10 +393,7 @@ void A_Fall(int32_t iActor)
     }
 
 #ifdef YAX_ENABLE
-    if (sector[s->sectnum].floorstat&512)
-        fbunch = -1;
-    else
-        fbunch = yax_getbunch(s->sectnum, YAX_FLOOR);
+    fbunch = (sector[s->sectnum].floorstat&512) ? -1 : yax_getbunch(s->sectnum, YAX_FLOOR);
 #endif
 
     if (s->z < actor[iActor].floorz-ZOFFSET
@@ -459,7 +443,7 @@ GAMEEXEC_STATIC void VM_AlterAng(int32_t movflags)
 
 #if !defined LUNATIC
     const intptr_t *moveptr;
-    if ((unsigned)AC_MOVE_ID(vm.g_t) >= (unsigned)g_scriptSize-1)
+    if (EDUKE32_PREDICT_FALSE((unsigned)AC_MOVE_ID(vm.g_t) >= (unsigned)g_scriptSize-1))
 
     {
         AC_MOVE_ID(vm.g_t) = 0;
@@ -533,7 +517,7 @@ GAMEEXEC_STATIC void VM_AlterAng(int32_t movflags)
     }
 }
 
-static void VM_AddAngle(int32_t shr, int32_t goalang)
+static inline void VM_AddAngle(int32_t shr, int32_t goalang)
 {
     int32_t angdif = G_GetAngleDelta(vm.g_sp->ang,goalang)>>shr;
 
@@ -643,7 +627,7 @@ GAMEEXEC_STATIC void VM_Move(void)
 
 dead:
 #if !defined LUNATIC
-    if ((unsigned)AC_MOVE_ID(vm.g_t) >= (unsigned)g_scriptSize-1)
+    if (EDUKE32_PREDICT_FALSE((unsigned)AC_MOVE_ID(vm.g_t) >= (unsigned)g_scriptSize-1))
     {
         AC_MOVE_ID(vm.g_t) = 0;
         OSD_Printf_nowarn(OSD_ERROR "clearing bad moveptr for actor %d (%d)\n", vm.g_i, TrackerCast(vm.g_sp->picnum));
@@ -869,9 +853,9 @@ static void VM_Fall(int32_t g_i, spritetype *g_sp)
 
     g_sp->xoffset = g_sp->yoffset = 0;
 
-    if (G_CheckForSpaceCeiling(g_sp->sectnum) || sector[g_sp->sectnum].lotag == ST_2_UNDERWATER)
+    if (sector[g_sp->sectnum].lotag == ST_2_UNDERWATER || EDUKE32_PREDICT_FALSE(G_CheckForSpaceCeiling(g_sp->sectnum)))
         grav = g_spriteGravity/6;
-    else if (G_CheckForSpaceFloor(g_sp->sectnum))
+    else if (EDUKE32_PREDICT_FALSE(G_CheckForSpaceFloor(g_sp->sectnum)))
         grav = 0;
 
     if (!actor[g_i].cgg-- || (sector[g_sp->sectnum].floorstat&2))
@@ -1166,7 +1150,7 @@ skip_check:
             insptr++;
             {
                 int32_t q = *insptr++, i = *insptr++;
-                if ((ScriptQuotes[q] == NULL || ScriptQuoteRedefinitions[i] == NULL))
+                if (EDUKE32_PREDICT_FALSE((ScriptQuotes[q] == NULL || ScriptQuoteRedefinitions[i] == NULL)))
                 {
                     CON_ERRPRINTF("%d %d null quote\n", q,i);
                     break;
@@ -1447,7 +1431,7 @@ skip_check:
 
         case CON_MIKESND:
             insptr++;
-            if (((unsigned)vm.g_sp->yvel >= MAXSOUNDS))
+            if (EDUKE32_PREDICT_FALSE(((unsigned)vm.g_sp->yvel >= MAXSOUNDS)))
             {
                 CON_ERRPRINTF("Invalid sound %d\n", TrackerCast(vm.g_sp->yvel));
                 continue;
@@ -1498,7 +1482,7 @@ skip_check:
             continue;
 
         case CON_SOUNDONCE:
-            if (((unsigned)*(++insptr) >= MAXSOUNDS))
+            if (EDUKE32_PREDICT_FALSE((unsigned)*(++insptr) >= MAXSOUNDS))
             {
                 CON_ERRPRINTF("Invalid sound %d\n", (int32_t)*insptr++);
                 continue;
@@ -1512,7 +1496,7 @@ skip_check:
             {
                 int32_t i = Gv_GetVarX(*insptr++), j = Gv_GetVarX(*insptr++);
 
-                if (((unsigned)j >= MAXSOUNDS))
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXSOUNDS))
                 {
                     CON_ERRPRINTF("Invalid sound %d\n", j);
                     insptr++;
@@ -1524,7 +1508,7 @@ skip_check:
             continue;
 
         case CON_IFSOUND:
-            if (((unsigned)*(++insptr) >= MAXSOUNDS))
+            if (EDUKE32_PREDICT_FALSE((unsigned)*(++insptr) >= MAXSOUNDS))
             {
                 CON_ERRPRINTF("Invalid sound %d\n", (int32_t)*insptr);
                 insptr++;
@@ -1535,7 +1519,7 @@ skip_check:
             continue;
 
         case CON_STOPSOUND:
-            if (((unsigned)*(++insptr) >= MAXSOUNDS))
+            if (EDUKE32_PREDICT_FALSE((unsigned)*(++insptr) >= MAXSOUNDS))
             {
                 CON_ERRPRINTF("Invalid sound %d\n", (int32_t)*insptr);
                 insptr++;
@@ -1551,7 +1535,7 @@ skip_check:
             {
                 int32_t i = Gv_GetVarX(*insptr++), j = Gv_GetVarX(*insptr++);
 
-                if ((j<0 || j>=MAXSOUNDS))
+                if (EDUKE32_PREDICT_FALSE((unsigned)j>=MAXSOUNDS))
                 {
                     CON_ERRPRINTF("Invalid sound %d\n", j);
                     continue;
@@ -1568,7 +1552,7 @@ skip_check:
             {
                 int32_t i = Gv_GetVarX(*insptr++), j = Gv_GetVarX(*insptr++), pitchoffset = Gv_GetVarX(*insptr++);
 
-                if ((j<0 || j>=MAXSOUNDS))
+                if (EDUKE32_PREDICT_FALSE((unsigned)j>=MAXSOUNDS))
                 {
                     CON_ERRPRINTF("Invalid sound %d\n", j);
                     continue;
@@ -1580,7 +1564,7 @@ skip_check:
             }
 
         case CON_GLOBALSOUND:
-            if (((unsigned)*(++insptr) >= MAXSOUNDS))
+            if (EDUKE32_PREDICT_FALSE((unsigned)*(++insptr) >= MAXSOUNDS))
             {
                 CON_ERRPRINTF("Invalid sound %d\n", (int32_t)*insptr);
                 insptr++;
@@ -1596,7 +1580,7 @@ skip_check:
             continue;
 
         case CON_SOUND:
-            if ((unsigned)*(++insptr) >= MAXSOUNDS)
+            if (EDUKE32_PREDICT_FALSE((unsigned)*(++insptr) >= MAXSOUNDS))
             {
                 CON_ERRPRINTF("Invalid sound %d\n", (int32_t)*insptr);
                 insptr++;
@@ -1632,7 +1616,7 @@ skip_check:
                 int32_t weap=*insptr++, amount=*insptr++;
                 DukePlayer_t *ps = g_player[vm.g_p].ps;
 
-                if ((unsigned)weap >= MAX_WEAPONS)
+                if (EDUKE32_PREDICT_FALSE((unsigned)weap >= MAX_WEAPONS))
                 {
                     CON_ERRPRINTF("Invalid weapon ID %d\n", weap);
                     break;
@@ -1815,22 +1799,38 @@ skip_check:
                 switch (tw)
                 {
                 case CON_ACTIVATEBYSECTOR:
-                    if ((unsigned)var1 >= (unsigned)numsectors) {CON_ERRPRINTF("Invalid sector %d\n", var1); break;}
+                    if (EDUKE32_PREDICT_FALSE((unsigned)var1 >= (unsigned)numsectors))
+                    {
+                        CON_ERRPRINTF("Invalid sector %d\n", var1);
+                        break;
+                    }
                     G_ActivateBySector(var1, var2);
                     break;
                 case CON_OPERATESECTORS:
-                    if ((unsigned)var1 >= (unsigned)numsectors) {CON_ERRPRINTF("Invalid sector %d\n", var1); break;}
+                    if (EDUKE32_PREDICT_FALSE((unsigned)var1 >= (unsigned)numsectors))
+                    {
+                        CON_ERRPRINTF("Invalid sector %d\n", var1);
+                        break;
+                    }
                     G_OperateSectors(var1, var2);
                     break;
                 case CON_OPERATEACTIVATORS:
-                    if ((unsigned)var2>=(unsigned)playerswhenstarted) {CON_ERRPRINTF("Invalid player %d\n", var2); break;}
+                    if (EDUKE32_PREDICT_FALSE((unsigned)var2>=(unsigned)playerswhenstarted))
+                    {
+                        CON_ERRPRINTF("Invalid player %d\n", var2);
+                        break;
+                    }
                     G_OperateActivators(var1, var2);
                     break;
                 case CON_SETASPECT:
                     setaspect(var1, var2);
                     break;
                 case CON_SSP:
-                    if ((unsigned)var1 >= MAXSPRITES) { CON_ERRPRINTF("Invalid sprite %d\n", var1); break;}
+                    if (EDUKE32_PREDICT_FALSE((unsigned)var1 >= MAXSPRITES))
+                    {
+                        CON_ERRPRINTF("Invalid sprite %d\n", var1);
+                        break;
+                    }
                     A_SetSprite(var1, var2);
                     break;
                 }
@@ -1842,7 +1842,7 @@ skip_check:
             {
                 int32_t lVar1 = Gv_GetVarX(*insptr++), lVar2 = Gv_GetVarX(*insptr++), res;
 
-                if ((unsigned)lVar1 >= MAXSPRITES || (unsigned)lVar2 >= MAXSPRITES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)lVar1 >= MAXSPRITES || (unsigned)lVar2 >= MAXSPRITES))
                 {
                     CON_ERRPRINTF("Invalid sprite %d\n", (unsigned)lVar1 >= MAXSPRITES ? lVar1 : lVar2);
                     res=0;
@@ -1879,7 +1879,7 @@ skip_check:
             {
                 int32_t i=*insptr++;
                 int32_t j=Gv_GetVarX(*insptr++);
-                if ((ScriptQuotes[j] == NULL))
+                if (EDUKE32_PREDICT_FALSE(ScriptQuotes[j] == NULL))
                 {
                     CON_ERRPRINTF("null quote %d\n", j);
                     Gv_SetVarX(i,-1);
@@ -1910,11 +1910,11 @@ skip_check:
 
                 orientation &= (ROTATESPRITE_MAX-1);
 
-                if (tilenum < 0 || tilenum+255 >= MAXTILES)
+                if (EDUKE32_PREDICT_FALSE(tilenum < 0 || tilenum+255 >= MAXTILES))
                     CON_ERRPRINTF("invalid base tilenum %d\n", tilenum);
-                else if ((unsigned)q >= MAXQUOTES)
+                else if (EDUKE32_PREDICT_FALSE((unsigned)q >= MAXQUOTES))
                     CON_ERRPRINTF("invalid quote ID %d\n", q);
-                else if ((ScriptQuotes[q] == NULL))
+                else if (EDUKE32_PREDICT_FALSE((ScriptQuotes[q] == NULL)))
                     CON_ERRPRINTF("null quote %d\n", q);
                 else
                     dim = G_ScreenTextSize(tilenum,x,y,z,blockangle,ScriptQuotes[q],2|orientation,xspace,yline,xbetween,ybetween,f,x1,y1,x2,y2);
@@ -1929,7 +1929,7 @@ skip_check:
             {
                 int32_t i=*insptr++;
                 int32_t j=Gv_GetVarX(*insptr++);
-                if ((unsigned)j > MAXSTATUS)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j > MAXSTATUS))
                 {
                     CON_ERRPRINTF("invalid status list %d\n", j);
                     continue;
@@ -1943,7 +1943,7 @@ skip_check:
             {
                 int32_t i=*insptr++;
                 int32_t j=Gv_GetVarX(*insptr++);
-                if ((unsigned)j >= MAXSPRITES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXSPRITES))
                 {
                     CON_ERRPRINTF("invalid sprite ID %d\n", j);
                     continue;
@@ -1957,7 +1957,7 @@ skip_check:
             {
                 int32_t i=*insptr++;
                 int32_t j=Gv_GetVarX(*insptr++);
-                if ((unsigned)j >= MAXSPRITES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXSPRITES))
                 {
                     CON_ERRPRINTF("invalid sprite ID %d\n", j);
                     continue;
@@ -1971,7 +1971,7 @@ skip_check:
             {
                 int32_t i=*insptr++;
                 int32_t j=Gv_GetVarX(*insptr++);
-                if ((unsigned)j >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("invalid sector %d\n", j);
                     continue;
@@ -1985,7 +1985,7 @@ skip_check:
             {
                 int32_t i=*insptr++;
                 int32_t j=Gv_GetVarX(*insptr++);
-                if ((unsigned)j >= MAXSPRITES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXSPRITES))
                 {
                     CON_ERRPRINTF("invalid sprite ID %d\n", j);
                     continue;
@@ -1999,7 +1999,7 @@ skip_check:
             {
                 int32_t i=*insptr++;
                 int32_t j=Gv_GetVarX(*insptr++);
-                if ((unsigned)j >= MAXSPRITES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXSPRITES))
                 {
                     CON_ERRPRINTF("invalid sprite ID %d\n", j);
                     continue;
@@ -2015,17 +2015,17 @@ skip_check:
                         f = Gv_GetVarX(*insptr++);
                 int32_t j = Gv_GetVarX(*insptr++);
 
-                if ((unsigned)i >= MAXQUOTES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)i >= MAXQUOTES))
                 {
                     CON_ERRPRINTF("invalid quote ID %d\n", i);
                     continue;
                 }
-                else if ((ScriptQuotes[i] == NULL))
+                else if (EDUKE32_PREDICT_FALSE((ScriptQuotes[i] == NULL)))
                 {
                     CON_ERRPRINTF("null quote %d\n", i);
                     continue;
                 }
-                else if ((unsigned)f >= NUMGAMEFUNCTIONS)
+                else if (EDUKE32_PREDICT_FALSE((unsigned)f >= NUMGAMEFUNCTIONS))
                 {
                     CON_ERRPRINTF("invalid function %d\n", f);
                     continue;
@@ -2057,34 +2057,34 @@ skip_check:
                 int32_t st = Gv_GetVarX(*insptr++);
                 int32_t ln = Gv_GetVarX(*insptr++);
 
-                if ((unsigned)q1>=MAXQUOTES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)q1>=MAXQUOTES))
                 {
                     CON_ERRPRINTF("invalid quote ID %d\n", q1);
                     continue;
                 }
-                if ((ScriptQuotes[q1] == NULL))
+                if (EDUKE32_PREDICT_FALSE((ScriptQuotes[q1] == NULL)))
                 {
                     CON_ERRPRINTF("null quote %d\n", q1);
                     continue;
                 }
-                if ((unsigned)q2>=MAXQUOTES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)q2>=MAXQUOTES))
                 {
                     CON_ERRPRINTF("invalid quote ID %d\n", q2);
                     continue;
                 }
-                if ((ScriptQuotes[q2] == NULL))
+                if (EDUKE32_PREDICT_FALSE((ScriptQuotes[q2] == NULL)))
                 {
                     CON_ERRPRINTF("null quote %d\n", q2);
                     continue;
                 }
 
-                if ((unsigned)st >= MAXQUOTELEN)
+                if (EDUKE32_PREDICT_FALSE((unsigned)st >= MAXQUOTELEN))
                 {
                     CON_ERRPRINTF("invalid start position %d\n", st);
                     continue;
                 }
 
-                if (ln < 0)
+                if (EDUKE32_PREDICT_FALSE(ln < 0))
                 {
                     CON_ERRPRINTF("invalid length %d\n", ln);
                     continue;
@@ -2124,7 +2124,7 @@ skip_check:
                 switch (tw)
                 {
                 case CON_GETPNAME:
-                    if ((ScriptQuotes[i] == NULL))
+                    if (EDUKE32_PREDICT_FALSE(ScriptQuotes[i] == NULL))
                     {
                         CON_ERRPRINTF("null quote %d\n", i);
                         break;
@@ -2134,7 +2134,7 @@ skip_check:
                     else Bsprintf(ScriptQuotes[i],"%d",j);
                     break;
                 case CON_QGETSYSSTR:
-                    if ((ScriptQuotes[i] == NULL))
+                    if (EDUKE32_PREDICT_FALSE(ScriptQuotes[i] == NULL))
                     {
                         CON_ERRPRINTF("null quote %d %d\n", i,j);
                         break;
@@ -2147,7 +2147,7 @@ skip_check:
                         int32_t idx = ud.volume_number*MAXLEVELS + ud.level_number;
                         const char *src;
 
-                        if ((unsigned)idx >= ARRAY_SIZE(MapInfo))
+                        if (EDUKE32_PREDICT_FALSE((unsigned)idx >= ARRAY_SIZE(MapInfo)))
                         {
                             CON_ERRPRINTF("out of bounds map number (vol=%d, lev=%d)\n",
                                           ud.volume_number, ud.level_number);
@@ -2155,7 +2155,7 @@ skip_check:
                         }
 
                         src = j==STR_MAPNAME ? MapInfo[idx].name : MapInfo[idx].filename;
-                        if (src == NULL)
+                        if (EDUKE32_PREDICT_FALSE(src == NULL))
                         {
                             CON_ERRPRINTF("attempted access to %s of non-existent map (vol=%d, lev=%d)",
                                           j==STR_MAPNAME ? "name" : "file name",
@@ -2167,7 +2167,7 @@ skip_check:
                         break;
                     }
                     case STR_PLAYERNAME:
-                        if ((unsigned)vm.g_p >= (unsigned)playerswhenstarted)
+                        if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_p >= (unsigned)playerswhenstarted))
                         {
                             CON_ERRPRINTF("Invalid player ID %d\n", vm.g_p);
                             break;
@@ -2182,7 +2182,7 @@ skip_check:
                         Bstrcpy(ScriptQuotes[i],GametypeNames[ud.coop]);
                         break;
                     case STR_VOLUMENAME:
-                        if ((unsigned)ud.volume_number >= MAXVOLUMES)
+                        if (EDUKE32_PREDICT_FALSE((unsigned)ud.volume_number >= MAXVOLUMES))
                         {
                             CON_ERRPRINTF("invalid volume (%d)\n", ud.volume_number);
                             break;
@@ -2194,25 +2194,25 @@ skip_check:
                     }
                     break;
                 case CON_QSTRCAT:
-                    if ((ScriptQuotes[i] == NULL || ScriptQuotes[j] == NULL)) goto nullquote;
+                    if (EDUKE32_PREDICT_FALSE(ScriptQuotes[i] == NULL || ScriptQuotes[j] == NULL)) goto nullquote;
                     Bstrncat(ScriptQuotes[i],ScriptQuotes[j],(MAXQUOTELEN-1)-Bstrlen(ScriptQuotes[i]));
                     break;
                 case CON_QSTRNCAT:
-                    if ((ScriptQuotes[i] == NULL || ScriptQuotes[j] == NULL)) goto nullquote;
+                    if (EDUKE32_PREDICT_FALSE(ScriptQuotes[i] == NULL || ScriptQuotes[j] == NULL)) goto nullquote;
                     Bstrncat(ScriptQuotes[i],ScriptQuotes[j],Gv_GetVarX(*insptr++));
                     break;
                 case CON_QSTRCPY:
-                    if ((ScriptQuotes[i] == NULL || ScriptQuotes[j] == NULL)) goto nullquote;
+                    if (EDUKE32_PREDICT_FALSE(ScriptQuotes[i] == NULL || ScriptQuotes[j] == NULL)) goto nullquote;
                     if (i != j)
                         Bstrcpy(ScriptQuotes[i],ScriptQuotes[j]);
                     break;
                 case CON_CHANGESPRITESECT:
-                    if ((unsigned)i >= MAXSPRITES)
+                    if (EDUKE32_PREDICT_FALSE((unsigned)i >= MAXSPRITES))
                     {
                         CON_ERRPRINTF("Invalid sprite %d\n", i);
                         break;
                     }
-                    if ((unsigned)j >= (unsigned)numsectors)
+                    else if (EDUKE32_PREDICT_FALSE((unsigned)j >= (unsigned)numsectors))
                     {
                         CON_ERRPRINTF("Invalid sector %d\n", j);
                         break;
@@ -2233,12 +2233,12 @@ nullquote:
                 int32_t i = Gv_GetVarX(*insptr++);
                 int32_t j = Gv_GetVarX(*insptr++);
 
-                if ((unsigned)i >= MAXSPRITES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)i >= MAXSPRITES))
                 {
                     CON_ERRPRINTF("Invalid sprite: %d\n", i);
                     continue;
                 }
-                if ((unsigned)j >= MAXSTATUS)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXSTATUS))
                 {
                     CON_ERRPRINTF("Invalid statnum: %d\n", j);
                     continue;
@@ -2284,13 +2284,13 @@ nullquote:
                 // from 'level' cheat in game.c (about line 6250)
                 int32_t volnume=Gv_GetVarX(*insptr++), levnume=Gv_GetVarX(*insptr++);
 
-                if ((volnume > MAXVOLUMES-1 || volnume < 0))
+                if (EDUKE32_PREDICT_FALSE((volnume > MAXVOLUMES-1 || volnume < 0)))
                 {
                     CON_ERRPRINTF("invalid volume (%d)\n", volnume);
                     continue;
                 }
 
-                if ((levnume > MAXLEVELS-1 || levnume < 0))
+                if (EDUKE32_PREDICT_FALSE((levnume > MAXLEVELS-1 || levnume < 0)))
                 {
                     CON_ERRPRINTF("invalid level (%d)\n", levnume);
                     continue;
@@ -2426,7 +2426,7 @@ nullquote:
             {
                 int32_t wallnum = Gv_GetVarX(*insptr++), newx = Gv_GetVarX(*insptr++), newy = Gv_GetVarX(*insptr++);
 
-                if ((wallnum<0 || wallnum>=numwalls))
+                if (EDUKE32_PREDICT_FALSE((wallnum<0 || wallnum>=numwalls)))
                 {
                     CON_ERRPRINTF("Invalid wall %d\n", wallnum);
                     continue;
@@ -2440,7 +2440,7 @@ nullquote:
             {
                 int32_t distvar = *insptr++, xvar = Gv_GetVarX(*insptr++), yvar = Gv_GetVarX(*insptr++);
 
-                if ((unsigned)xvar >= MAXSPRITES || (unsigned)yvar >= MAXSPRITES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)xvar >= MAXSPRITES || (unsigned)yvar >= MAXSPRITES))
                 {
                     CON_ERRPRINTF("invalid sprite\n");
                     continue;
@@ -2455,7 +2455,7 @@ nullquote:
             {
                 int32_t distvar = *insptr++, xvar = Gv_GetVarX(*insptr++), yvar = Gv_GetVarX(*insptr++);
 
-                if ((unsigned)xvar >= MAXSPRITES || (unsigned)yvar >= MAXSPRITES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)xvar >= MAXSPRITES || (unsigned)yvar >= MAXSPRITES))
                 {
                     CON_ERRPRINTF("invalid sprite\n");
                     continue;
@@ -2513,7 +2513,7 @@ nullquote:
             {
                 int32_t lIn=Gv_GetVarX(*insptr++);
                 int32_t j;
-                if ((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", TrackerCast(vm.g_sp->sectnum));
                     continue;
@@ -2543,7 +2543,7 @@ nullquote:
             {
                 int32_t j;
 
-                if ((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", TrackerCast(vm.g_sp->sectnum));
                     insptr++;
@@ -2579,7 +2579,7 @@ nullquote:
                 const int32_t zvel = (tw == CON_ESHOOT) ?
                     SHOOT_HARDCODED_ZVEL : (int16_t)Gv_GetVarX(*insptr++);
 
-                if ((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", TrackerCast(vm.g_sp->sectnum));
                     insptr++;
@@ -2599,7 +2599,7 @@ nullquote:
             {
                 int32_t j=Gv_GetVarX(*insptr++);
 
-                if ((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", TrackerCast(vm.g_sp->sectnum));
                     continue;
@@ -2618,7 +2618,7 @@ nullquote:
                 const int32_t zvel = (int16_t)Gv_GetVarX(*insptr++);
                 int32_t j=Gv_GetVarX(*insptr++);
 
-                if ((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_sp->sectnum >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", TrackerCast(vm.g_sp->sectnum));
                     continue;
@@ -2644,7 +2644,7 @@ nullquote:
             {
                 int32_t j=Gv_GetVarX(*insptr++);
 
-                if (j<0 || j>=MAXSOUNDS)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j>=MAXSOUNDS))
                 {
                     CON_ERRPRINTF("Invalid sound %d\n", j);
                     continue;
@@ -2677,10 +2677,10 @@ nullquote:
             insptr++;
             {
                 int32_t j=Gv_GetVarX(*insptr++);
-                if (j >= 0 && j < MAXUNIQHUDID-1)
-                    guniqhudid = j;
-                else
+                if (EDUKE32_PREDICT_FALSE((unsigned) j >= MAXUNIQHUDID-1))
                     CON_ERRPRINTF("Invalid ID %d\n", j);
+                else guniqhudid = j;
+
                 continue;
             }
 
@@ -2723,13 +2723,13 @@ nullquote:
                 int32_t x2=Gv_GetVarX(*insptr++);
                 int32_t y2=Gv_GetVarX(*insptr++);
 
-                if (x1 < 0 || y1 < 0 || x2 >= 320 || y2 >= 200)
+                if (EDUKE32_PREDICT_FALSE(x1 < 0 || y1 < 0 || x2 >= 320 || y2 >= 200))
                 {
                     CON_ERRPRINTF("incorrect coordinates\n");
                     continue;
                 }
 
-                if ((unsigned)sect >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)sect >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", sect);
                     continue;
@@ -2760,13 +2760,13 @@ nullquote:
                     y<<=16;
                 }
 
-                if ((unsigned)tilenum >= MAXTILES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)tilenum >= MAXTILES))
                 {
                     CON_ERRPRINTF("invalid tilenum %d\n", tilenum);
                     continue;
                 }
 
-                if (x < -(320<<16) || x >= (640<<16) || y < -(200<<16) || y >= (400<<16))
+                if (EDUKE32_PREDICT_FALSE(x < -(320<<16) || x >= (640<<16) || y < -(200<<16) || y >= (400<<16)))
                 {
                     CON_ERRPRINTF("invalid coordinates: %d, %d\n", x, y);
                     continue;
@@ -2792,19 +2792,19 @@ nullquote:
                 int32_t x2=Gv_GetVarX(*insptr++), y2=Gv_GetVarX(*insptr++);
                 int32_t z = (tw == CON_GAMETEXTZ) ? Gv_GetVarX(*insptr++) : 65536;
 
-                if (tilenum < 0 || tilenum+255 >= MAXTILES)
+                if (EDUKE32_PREDICT_FALSE(tilenum < 0 || tilenum+255 >= MAXTILES))
                 {
                     CON_ERRPRINTF("invalid base tilenum %d\n", tilenum);
                     continue;
                 }
 
-                if ((unsigned)q >= MAXQUOTES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)q >= MAXQUOTES))
                 {
                     CON_ERRPRINTF("invalid quote ID %d\n", q);
                     continue;
                 }
 
-                if ((ScriptQuotes[q] == NULL))
+                if (EDUKE32_PREDICT_FALSE(ScriptQuotes[q] == NULL))
                 {
                     CON_ERRPRINTF("null quote %d\n", q);
                     continue;
@@ -2829,7 +2829,7 @@ nullquote:
                 int32_t z = (tw == CON_DIGITALNUMBERZ) ? Gv_GetVarX(*insptr++) : 65536;
 
                 // NOTE: '-' not taken into account, but we have rotatesprite() bound check now anyway
-                if (tilenum < 0 || tilenum+9 >= MAXTILES)
+                if (EDUKE32_PREDICT_FALSE(tilenum < 0 || tilenum+9 >= MAXTILES))
                 {
                     CON_ERRPRINTF("invalid base tilenum %d\n", tilenum);
                     continue;
@@ -2845,13 +2845,13 @@ nullquote:
                 int32_t x=Gv_GetVarX(*insptr++), y=Gv_GetVarX(*insptr++), q=Gv_GetVarX(*insptr++);
                 int32_t shade=Gv_GetVarX(*insptr++), pal=Gv_GetVarX(*insptr++);
 
-                if ((unsigned)q >= MAXQUOTES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)q >= MAXQUOTES))
                 {
                     CON_ERRPRINTF("invalid quote ID %d\n", q);
                     continue;
                 }
 
-                if ((ScriptQuotes[q] == NULL))
+                if (EDUKE32_PREDICT_FALSE(ScriptQuotes[q] == NULL))
                 {
                     CON_ERRPRINTF("null quote %d\n", q);
                     continue;
@@ -2876,19 +2876,19 @@ nullquote:
                 int32_t x1=Gv_GetVarX(*insptr++), y1=Gv_GetVarX(*insptr++);
                 int32_t x2=Gv_GetVarX(*insptr++), y2=Gv_GetVarX(*insptr++);
 
-                if (tilenum < 0 || tilenum+255 >= MAXTILES)
+                if (EDUKE32_PREDICT_FALSE(tilenum < 0 || tilenum+255 >= MAXTILES))
                 {
                     CON_ERRPRINTF("invalid base tilenum %d\n", tilenum);
                     continue;
                 }
 
-                if ((unsigned)q >= MAXQUOTES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)q >= MAXQUOTES))
                 {
                     CON_ERRPRINTF("invalid quote ID %d\n", q);
                     continue;
                 }
 
-                if ((ScriptQuotes[q] == NULL))
+                if (EDUKE32_PREDICT_FALSE(ScriptQuotes[q] == NULL))
                 {
                     CON_ERRPRINTF("null quote %d\n", q);
                     continue;
@@ -2921,7 +2921,7 @@ nullquote:
                     int32_t ceilz, ceilhit, florz, florhit;
 
 
-                    if ((unsigned)sectnum >= (unsigned)numsectors)
+                    if (EDUKE32_PREDICT_FALSE((unsigned)sectnum >= (unsigned)numsectors))
                     {
                         CON_ERRPRINTF("Invalid sector %d\n", sectnum);
                         continue;
@@ -2941,7 +2941,7 @@ nullquote:
             {
                 int32_t sectnum = Gv_GetVarX(*insptr++);
 
-                if ((unsigned)sectnum >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)sectnum >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", sectnum);
                     continue;
@@ -3012,7 +3012,7 @@ nullquote:
                 vect.z = z;
                 sectnum = Gv_GetVarX(sectnumvar);
 
-                if ((unsigned)sectnum >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)sectnum >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", sectnum);
                     Gv_SetVarX(retvar, 0);
@@ -3044,7 +3044,7 @@ nullquote:
                     int32_t hitsectvar=*insptr++, hitwallvar=*insptr++, hitspritevar=*insptr++;
                     int32_t hitxvar=*insptr++, hityvar=*insptr++, hitzvar=*insptr++, cliptype=Gv_GetVarX(*insptr++);
 
-                    if ((unsigned)sectnum >= (unsigned)numsectors)
+                    if (EDUKE32_PREDICT_FALSE((unsigned)sectnum >= (unsigned)numsectors))
                     {
                         CON_ERRPRINTF("Invalid sector %d\n", sectnum);
                         continue;
@@ -3068,7 +3068,7 @@ nullquote:
                 int32_t x2=Gv_GetVarX(*insptr++), y2=Gv_GetVarX(*insptr++), z2=Gv_GetVarX(*insptr++);
                 int32_t sect2=Gv_GetVarX(*insptr++), rvar=*insptr++;
 
-                if ((unsigned)sect1 >= (unsigned)numsectors || (unsigned)sect2 >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)sect1 >= (unsigned)numsectors || (unsigned)sect2 >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector\n");
                     Gv_SetVarX(rvar, 0);
@@ -3111,7 +3111,7 @@ nullquote:
                 int16_t neartagsector, neartagwall, neartagsprite;
                 int32_t neartaghitdist;
 
-                if ((unsigned)sectnum >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)sectnum >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", sectnum);
                     continue;
@@ -3152,7 +3152,7 @@ nullquote:
 
                 if (tw == CON_SETSPRITE)
                 {
-                    if ((unsigned)spritenum >= MAXSPRITES)
+                    if (EDUKE32_PREDICT_FALSE((unsigned)spritenum >= MAXSPRITES))
                     {
                         CON_ERRPRINTF("invalid sprite ID %d\n", spritenum);
                         continue;
@@ -3164,7 +3164,7 @@ nullquote:
                 {
                     int32_t cliptype = Gv_GetVarX(*insptr++);
 
-                    if ((unsigned)spritenum >= MAXSPRITES)
+                    if (EDUKE32_PREDICT_FALSE((unsigned)spritenum >= MAXSPRITES))
                     {
                         CON_ERRPRINTF("invalid sprite ID %d\n", spritenum);
                         insptr++;
@@ -3180,7 +3180,7 @@ nullquote:
             insptr++;
             {
                 int32_t sectnum = Gv_GetVarX(*insptr++), x = Gv_GetVarX(*insptr++), y = Gv_GetVarX(*insptr++);
-                if ((unsigned)sectnum >= (unsigned)numsectors)
+                if (EDUKE32_PREDICT_FALSE((unsigned)sectnum >= (unsigned)numsectors))
                 {
                     CON_ERRPRINTF("Invalid sector %d\n", sectnum);
                     insptr++;
@@ -3546,7 +3546,7 @@ nullquote:
             insptr++;
             {
                 int32_t j = Gv_GetVarX(*insptr++);
-                if ((unsigned)j >= MAXVOLUMES*MAXLEVELS)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= MAXVOLUMES*MAXLEVELS))
                 {
                     CON_ERRPRINTF("Invalid map number: %d\n", j);
                     continue;
@@ -3651,7 +3651,7 @@ nullquote:
 
         case CON_PALFROM:
             insptr++;
-            if ((unsigned)vm.g_p >= (unsigned)playerswhenstarted)
+            if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_p >= (unsigned)playerswhenstarted))
             {
                 CON_ERRPRINTF("invalid player ID %d\n", vm.g_p);
                 insptr += 4;
@@ -3677,7 +3677,7 @@ nullquote:
             insptr++;
             {
                 int32_t dq = Gv_GetVarX(*insptr++), sq = Gv_GetVarX(*insptr++);
-                if ((ScriptQuotes[sq] == NULL || ScriptQuotes[dq] == NULL))
+                if (EDUKE32_PREDICT_FALSE(ScriptQuotes[sq] == NULL || ScriptQuotes[dq] == NULL))
                 {
                     CON_ERRPRINTF("null quote %d\n", ScriptQuotes[sq] ? dq : sq);
 
@@ -3800,7 +3800,7 @@ finish_qsprintf:
                         insptr++;
 
                         index=Gv_GetVarX(*insptr++);
-                        if (index>=0 && index < aGameArrays[lVarID].size)
+                        if (EDUKE32_PREDICT_TRUE((unsigned)index < (unsigned)aGameArrays[lVarID].size))
                         {
                             OSD_Printf(OSDTEXT_GREEN "%s: L=%d %s[%d] =%d\n", keyw[g_tw], g_errorLineNum,
                                        aGameArrays[lVarID].szLabel, index,
@@ -3821,7 +3821,7 @@ finish_qsprintf:
                             intptr_t *oinsptr = insptr++;
                             int32_t index = Gv_GetVarX(*insptr++);
                             insptr = oinsptr;
-                            if ((unsigned)index >= MAXSPRITES-1)
+                            if (EDUKE32_PREDICT_FALSE((unsigned)index >= MAXSPRITES-1))
                             {
                                 CON_ERRPRINTF("invalid array index\n");
                                 Gv_GetVarX(*insptr++);
@@ -3831,7 +3831,7 @@ finish_qsprintf:
                             continue;
                         }
                     }
-                    else if (*insptr&(MAXGAMEVARS<<1))
+                    else if (EDUKE32_PREDICT_TRUE(*insptr&(MAXGAMEVARS<<1)))
                     {
                         m = -m;
                         lVarID ^= (MAXGAMEVARS<<1);
@@ -4217,7 +4217,7 @@ finish_qsprintf:
                 int32_t lSprite=Gv_GetVarX(*insptr++), lVar1=*insptr++;
                 int32_t lVar2=*insptr++;
 
-                if ((unsigned)lSprite >= MAXSPRITES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)lSprite >= MAXSPRITES))
                 {
                     CON_ERRPRINTF("invalid sprite ID %d\n", lSprite);
                     if (lVar1 == MAXGAMEVARS || lVar1 & ((MAXGAMEVARS<<2)|(MAXGAMEVARS<<3))) insptr++;
@@ -4247,7 +4247,7 @@ finish_qsprintf:
                 {
                     int32_t lVar1=*insptr++, lVar2=*insptr++;
 
-                    if ((unsigned)iPlayer >= (unsigned)playerswhenstarted)
+                    if (EDUKE32_PREDICT_FALSE((unsigned)iPlayer >= (unsigned)playerswhenstarted))
                     {
                         CON_ERRPRINTF("invalid player ID %d\n", iPlayer);
                         if (lVar1 == MAXGAMEVARS || lVar1 & ((MAXGAMEVARS<<2)|(MAXGAMEVARS<<3))) insptr++;
@@ -4343,7 +4343,7 @@ finish_qsprintf:
 
                 insptr++;
 
-                if ((unsigned)j >= (unsigned)playerswhenstarted)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= (unsigned)playerswhenstarted))
                 {
                     CON_ERRPRINTF("Invalid player ID %d\n", j);
                     continue;
@@ -4396,13 +4396,13 @@ finish_qsprintf:
                 int32_t index = Gv_GetVarX(*insptr++);
                 int32_t value = Gv_GetVarX(*insptr++);
 
-                if (j<0 || j >= g_gameArrayCount || index >= aGameArrays[j].size || index < 0)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j >= (unsigned)g_gameArrayCount || (unsigned)index >= (unsigned)aGameArrays[j].size))
                 {
                     OSD_Printf_nowarn(OSD_ERROR "Gv_SetVar(): tried to set invalid array ID (%d) or index out of bounds from sprite %d (%d), player %d\n",
                         j,vm.g_i,TrackerCast(sprite[vm.g_i].picnum),vm.g_p);
                     continue;
                 }
-                if (aGameArrays[j].dwFlags & GAMEARRAY_READONLY)
+                if (EDUKE32_PREDICT_FALSE(aGameArrays[j].dwFlags & GAMEARRAY_READONLY))
                 {
                     OSD_Printf("Tried to set on read-only array `%s'", aGameArrays[j].szLabel);
                     continue;
@@ -4418,7 +4418,7 @@ finish_qsprintf:
                 {
                     int q = *insptr++;
 
-                    if (ScriptQuotes[q] == NULL)
+                    if (EDUKE32_PREDICT_FALSE(ScriptQuotes[q] == NULL))
                     {
                         CON_ERRPRINTF("null quote %d\n", q);
                         continue;
@@ -4452,14 +4452,15 @@ finish_qsprintf:
                         FILE *fil;
                         char temp[BMAX_PATH];
 
-                        if (G_ModDirSnprintf(temp, sizeof(temp), "%s", ScriptQuotes[q]))
+                        if (EDUKE32_PREDICT_FALSE(G_ModDirSnprintf(temp, sizeof(temp), "%s", ScriptQuotes[q])))
                         {
                             CON_ERRPRINTF("file name too long\n");
                             continue;
                         }
 
                         fil = fopen(temp,"wb");
-                        if (fil == NULL)
+
+                        if (EDUKE32_PREDICT_FALSE(fil == NULL))
                         {
                             CON_ERRPRINTF("couldn't open file");
                             continue;
@@ -4506,29 +4507,29 @@ finish_qsprintf:
                 int32_t didx = Gv_GetVarX(*insptr++);
                 int32_t numelts = Gv_GetVarX(*insptr++);
 
-                if (si<0 || si>=g_gameArrayCount)
+                if (EDUKE32_PREDICT_FALSE((unsigned)si>=(unsigned)g_gameArrayCount))
                 {
                     CON_ERRPRINTF("Invalid array %d!", si);
                     dsiz = 1;
                 }
-                if (di<0 || di>=g_gameArrayCount)
+                if (EDUKE32_PREDICT_FALSE((unsigned)di>=(unsigned)g_gameArrayCount))
                 {
                     CON_ERRPRINTF("Invalid array %d!", di);
                     dsiz = 1;
                 }
-                if (aGameArrays[di].dwFlags & GAMEARRAY_READONLY)
+                if (EDUKE32_PREDICT_FALSE(aGameArrays[di].dwFlags & GAMEARRAY_READONLY))
                 {
                     CON_ERRPRINTF("Array %d is read-only!", di);
                     dsiz = 1;
                 }
-                if (dsiz) continue; // dirty replacement for VMFLAG_ERROR
+                if (EDUKE32_PREDICT_FALSE(dsiz)) continue; // dirty replacement for VMFLAG_ERROR
 
                 ssiz = (aGameArrays[si].dwFlags&GAMEARRAY_VARSIZE) ?
                        Gv_GetVarX(aGameArrays[si].size) : aGameArrays[si].size;
                 dsiz = (aGameArrays[di].dwFlags&GAMEARRAY_VARSIZE) ?
                        Gv_GetVarX(aGameArrays[si].size) : aGameArrays[di].size;
 
-                if (sidx > ssiz || didx > dsiz) continue;
+                if (EDUKE32_PREDICT_FALSE(sidx > ssiz || didx > dsiz)) continue;
                 if ((sidx+numelts) > ssiz) numelts = ssiz-sidx;
                 if ((didx+numelts) > dsiz) numelts = dsiz-didx;
 
@@ -4591,7 +4592,7 @@ finish_qsprintf:
 
         case CON_DIVVAR:
             insptr++;
-            if (*(insptr+1) == 0)
+            if (EDUKE32_PREDICT_FALSE(*(insptr+1) == 0))
             {
                 CON_ERRPRINTF("divide by zero!\n");
                 insptr += 2;
@@ -4603,7 +4604,7 @@ finish_qsprintf:
 
         case CON_MODVAR:
             insptr++;
-            if (*(insptr+1) == 0)
+            if (EDUKE32_PREDICT_FALSE(*(insptr+1) == 0))
             {
                 CON_ERRPRINTF("mod by zero!\n");
                 insptr += 2;
@@ -4666,7 +4667,7 @@ finish_qsprintf:
             insptr++;
             {
                 int32_t j=Gv_GetVarX(*insptr++);
-                if ((unsigned)j>=MAX_WEAPONS)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j>=MAX_WEAPONS))
                 {
                     CON_ERRPRINTF("Invalid weapon ID %d\n", j);
                     insptr++;
@@ -4680,7 +4681,7 @@ finish_qsprintf:
             insptr++;
             {
                 int32_t j=Gv_GetVarX(*insptr++);
-                if ((unsigned)j>=MAX_WEAPONS)
+                if (EDUKE32_PREDICT_FALSE((unsigned)j>=MAX_WEAPONS))
                 {
                     CON_ERRPRINTF("Invalid weapon ID %d\n", j);
                     insptr++;
@@ -4705,7 +4706,7 @@ finish_qsprintf:
                 int32_t j=*insptr++;
                 int32_t l2=Gv_GetVarX(*insptr++);
 
-                if (!l2)
+                if (EDUKE32_PREDICT_FALSE(!l2))
                 {
                     CON_ERRPRINTF("divide by zero!\n");
                     continue;
@@ -4721,7 +4722,7 @@ finish_qsprintf:
                 int32_t j=*insptr++;
                 int32_t l2=Gv_GetVarX(*insptr++);
 
-                if (!l2)
+                if (EDUKE32_PREDICT_FALSE(!l2))
                 {
                     CON_ERRPRINTF("mod by zero!\n");
                     continue;
@@ -4852,7 +4853,7 @@ finish_qsprintf:
                 int32_t level = (tw == CON_STARTTRACK) ? *(insptr++) :
                     Gv_GetVarX(*(insptr++));
 
-                if (G_StartTrack(level))
+                if (EDUKE32_PREDICT_FALSE(G_StartTrack(level)))
                     CON_ERRPRINTF("invalid level %d or null music for volume %d level %d\n",
                                   level, ud.volume_number, level);
             }
@@ -4862,7 +4863,7 @@ finish_qsprintf:
             insptr++;
             {
                 int32_t j=Gv_GetVarX(*(insptr++));
-                if (numplayers != 1 || !(g_player[myconnectindex].ps->gm & MODE_GAME))
+                if (EDUKE32_PREDICT_FALSE(numplayers != 1 || !(g_player[myconnectindex].ps->gm & MODE_GAME)))
                 {
                     CON_ERRPRINTF("not in a single-player game.\n");
                     continue;
@@ -5172,21 +5173,21 @@ finish_qsprintf:
         case CON_QUOTE:
             insptr++;
 
-            if ((unsigned)(*insptr) >= MAXQUOTES)
+            if (EDUKE32_PREDICT_FALSE((unsigned)(*insptr) >= MAXQUOTES))
             {
                 CON_ERRPRINTF("invalid quote ID %d\n", (int32_t)(*insptr));
                 insptr++;
                 continue;
             }
 
-            if ((ScriptQuotes[*insptr] == NULL))
+            if (EDUKE32_PREDICT_FALSE(ScriptQuotes[*insptr] == NULL))
             {
                 CON_ERRPRINTF("null quote %d\n", (int32_t)*insptr);
                 insptr++;
                 continue;
             }
 
-            if ((unsigned)vm.g_p >= MAXPLAYERS)
+            if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_p >= MAXPLAYERS))
             {
                 CON_ERRPRINTF("bad player for quote %d: (%d)\n", (int32_t)*insptr,vm.g_p);
                 insptr++;
@@ -5201,14 +5202,14 @@ finish_qsprintf:
             {
                 int32_t i=Gv_GetVarX(*insptr++);
 
-                if ((unsigned)i >= MAXQUOTES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)i >= MAXQUOTES))
                 {
                     CON_ERRPRINTF("invalid quote ID %d\n", i);
                     insptr++;
                     continue;
                 }
 
-                if ((ScriptQuotes[i] == NULL))
+                if (EDUKE32_PREDICT_FALSE(ScriptQuotes[i] == NULL))
                 {
                     CON_ERRPRINTF("null quote %d\n", i);
                     continue;
@@ -5222,14 +5223,14 @@ finish_qsprintf:
             {
                 int32_t i=Gv_GetVarX(*insptr++);
 
-                if ((unsigned)i >= MAXQUOTES)
+                if (EDUKE32_PREDICT_FALSE((unsigned)i >= MAXQUOTES))
                 {
                     CON_ERRPRINTF("invalid quote ID %d\n", i);
                     insptr++;
                     continue;
                 }
 
-                if ((ScriptQuotes[i] == NULL))
+                if (EDUKE32_PREDICT_FALSE(ScriptQuotes[i] == NULL))
                 {
                     CON_ERRPRINTF("null quote %d\n", i);
                     continue;
@@ -5390,7 +5391,7 @@ void A_Execute(int32_t iActor, int32_t iPlayer, int32_t lDist)
 
     Bmemcpy(&vm, &tempvm, sizeof(vmstate_t));
 
-    if ((unsigned)vm.g_sp->sectnum >= MAXSECTORS)
+    if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_sp->sectnum >= MAXSECTORS))
     {
         if (A_CheckEnemySprite(vm.g_sp))
             g_player[vm.g_p].ps->actors_killed++;
@@ -5499,7 +5500,7 @@ void A_Execute(int32_t iActor, int32_t iPlayer, int32_t lDist)
         if (vm.g_sp->xrepeat > 60) return;
         if (ud.respawn_monsters == 1 && vm.g_sp->extra <= 0) return;
     }
-    else if (ud.respawn_items == 1 && (vm.g_sp->cstat&32768)) return;
+    else if (EDUKE32_PREDICT_FALSE(ud.respawn_items == 1 && (vm.g_sp->cstat&32768))) return;
 
     if (A_CheckSpriteFlags(vm.g_i, SFLAG_USEACTIVATOR) && sector[vm.g_sp->sectnum].lotag & 16384)
         changespritestat(vm.g_i, STAT_ZOMBIEACTOR);
@@ -5507,7 +5508,8 @@ void A_Execute(int32_t iActor, int32_t iPlayer, int32_t lDist)
         actor[vm.g_i].timetosleep--;
     else if (actor[vm.g_i].timetosleep == 1)
     {
-        if (g_scriptVersion == 13 && (vm.g_sp->picnum == FIRE || vm.g_sp->picnum == FIRE2))
+        // hack for 1.3D fire sprites
+        if (EDUKE32_PREDICT_FALSE(g_scriptVersion == 13 && (vm.g_sp->picnum == FIRE || vm.g_sp->picnum == FIRE2)))
             return;
         changespritestat(vm.g_i, STAT_ZOMBIEACTOR);
     }
diff --git a/polymer/eduke32/source/gameexec.h b/polymer/eduke32/source/gameexec.h
index eeec48cfb..f82361cb0 100644
--- a/polymer/eduke32/source/gameexec.h
+++ b/polymer/eduke32/source/gameexec.h
@@ -155,17 +155,18 @@ void G_SaveMapState();
 
 int32_t VM_OnEvent_(int32_t iEventID,int32_t iActor,int32_t iPlayer,int32_t lDist, int32_t iReturn);
 
-static inline int32_t VM_OnEvent(int32_t iEventID, int32_t iActor, int32_t iPlayer, int32_t lDist, int32_t iReturn)
+static inline int32_t VM_HaveEvent(int32_t iEventID)
 {
 #ifdef LUNATIC
-    if (!L_IsInitialized(&g_ElState) || !El_HaveEvent(iEventID))
-        return iReturn;
+    return L_IsInitialized(&g_ElState) && El_HaveEvent(iEventID)
 #else
-    if (!apScriptGameEvent[iEventID])
-        return iReturn;
+    return apScriptGameEvent[iEventID]!=NULL;
 #endif
+}
 
-    return VM_OnEvent_(iEventID, iActor, iPlayer, lDist, iReturn);
+static inline int32_t VM_OnEvent(int32_t iEventID, int32_t iActor, int32_t iPlayer, int32_t lDist, int32_t iReturn)
+{
+    return VM_HaveEvent(iEventID) ? VM_OnEvent_(iEventID, iActor, iPlayer, lDist, iReturn) : iReturn;
 }
 
 void VM_ScriptInfo(void);
diff --git a/polymer/eduke32/source/gamestructures.c b/polymer/eduke32/source/gamestructures.c
index 4e8daf037..5c29792f6 100644
--- a/polymer/eduke32/source/gamestructures.c
+++ b/polymer/eduke32/source/gamestructures.c
@@ -33,7 +33,7 @@ static void __fastcall VM_AccessUserdef(int32_t iSet, int32_t lLabelID, int32_t
 {
     int32_t lValue=0;
 
-    if (vm.g_p != myconnectindex)
+    if (EDUKE32_PREDICT_FALSE(vm.g_p != myconnectindex))
     {
         //        if (lVar2 == MAXGAMEVARS)
         //            insptr++;
@@ -920,7 +920,7 @@ static void __fastcall VM_AccessActiveProjectile(int32_t iSet, int32_t lVar1, in
     if (lVar1 != g_iThisActorID)
         proj=Gv_GetVarX(lVar1);
 
-    if ((unsigned)proj >= MAXSPRITES)
+    if (EDUKE32_PREDICT_FALSE((unsigned)proj >= MAXSPRITES))
     {
         //        OSD_Printf("VM_AccessActiveProjectile(): invalid projectile (%d)\n",proj);
         CON_ERRPRINTF("tried to %s %s on invalid target projectile (%d) %d %d from %s\n",
@@ -1218,10 +1218,10 @@ static void __fastcall VM_GetPlayer(register int32_t lVar1, register int32_t lLa
     if (lVar1 != g_iThisActorID)
         iPlayer=Gv_GetVarX(lVar1);
 
-    if ((unsigned)iPlayer >= (unsigned)playerswhenstarted)
+    if (EDUKE32_PREDICT_FALSE((unsigned)iPlayer >= (unsigned)playerswhenstarted))
         goto badplayer;
 
-    if (PlayerLabels[lLabelID].flags & LABEL_HASPARM2 && ((unsigned)lParm2 >= (unsigned)PlayerLabels[lLabelID].maxParm2))
+    if (EDUKE32_PREDICT_FALSE(PlayerLabels[lLabelID].flags & LABEL_HASPARM2 && ((unsigned)lParm2 >= (unsigned)PlayerLabels[lLabelID].maxParm2)))
         goto badpos;
 
     ps = g_player[iPlayer].ps;
@@ -1560,10 +1560,10 @@ static void __fastcall VM_SetPlayer(int32_t lVar1, int32_t lLabelID, int32_t lVa
 
     ps = g_player[iPlayer].ps;
 
-    if ((unsigned)iPlayer >= (unsigned)playerswhenstarted)
+    if (EDUKE32_PREDICT_FALSE((unsigned)iPlayer >= (unsigned)playerswhenstarted))
         goto badplayer;
 
-    if (PlayerLabels[lLabelID].flags & LABEL_HASPARM2 && (unsigned)lParm2 >= (unsigned)PlayerLabels[lLabelID].maxParm2)
+    if (EDUKE32_PREDICT_FALSE(PlayerLabels[lLabelID].flags & LABEL_HASPARM2 && (unsigned)lParm2 >= (unsigned)PlayerLabels[lLabelID].maxParm2))
         goto badpos;
 
     lVar1=Gv_GetVarX(lVar2);
@@ -1911,7 +1911,7 @@ static void __fastcall VM_AccessPlayerInput(int32_t iSet, int32_t lVar1, int32_t
     if (lVar1 != g_iThisActorID)
         iPlayer=Gv_GetVarX(lVar1);
 
-    if ((unsigned)iPlayer >= (unsigned)playerswhenstarted)
+    if (EDUKE32_PREDICT_FALSE((unsigned)iPlayer >= (unsigned)playerswhenstarted))
         goto badplayer;
 
     if (iSet)
@@ -1987,7 +1987,7 @@ static void __fastcall VM_AccessWall(int32_t iSet, int32_t lVar1, int32_t lLabel
     int32_t lValue=0;
     int32_t iWall = Gv_GetVarX(lVar1);
 
-    if ((unsigned)iWall >= (unsigned)numwalls)
+    if (EDUKE32_PREDICT_FALSE((unsigned)iWall >= (unsigned)numwalls))
         goto badwall;
 
     if (iSet)
@@ -2183,7 +2183,7 @@ static void __fastcall VM_AccessSector(int32_t iSet, int32_t lVar1, int32_t lLab
     if (lVar1 != g_iThisActorID)
         iSector=Gv_GetVarX(lVar1);
 
-    if ((unsigned)iSector >= (unsigned)numsectors)
+    if (EDUKE32_PREDICT_FALSE((unsigned)iSector >= (unsigned)numsectors))
         goto badsector;
 
     if (iSet)
@@ -2445,10 +2445,10 @@ static void __fastcall VM_SetSprite(int32_t lVar1, int32_t lLabelID, int32_t lVa
     if (lVar1 != g_iThisActorID)
         iActor=Gv_GetVarX(lVar1);
 
-    if ((unsigned)iActor >= MAXSPRITES)
+    if (EDUKE32_PREDICT_FALSE((unsigned)iActor >= MAXSPRITES))
         goto badactor;
 
-    if (ActorLabels[lLabelID].flags & LABEL_HASPARM2 && (unsigned)lParm2 >= (unsigned)ActorLabels[lLabelID].maxParm2)
+    if (EDUKE32_PREDICT_FALSE(ActorLabels[lLabelID].flags & LABEL_HASPARM2 && (unsigned)lParm2 >= (unsigned)ActorLabels[lLabelID].maxParm2))
         goto badpos;
 
     lVar1=Gv_GetVarX(lVar2);
@@ -2640,15 +2640,15 @@ static void __fastcall VM_SetSprite(int32_t lVar1, int32_t lLabelID, int32_t lVa
         return;
 
     case ACTOR_MDXOFF:
-        spriteext[iActor].xoff=lVar1;
+        spriteext[iActor].offset.x=lVar1;
         return;
 
     case ACTOR_MDYOFF:
-        spriteext[iActor].yoff=lVar1;
+        spriteext[iActor].offset.y=lVar1;
         return;
 
     case ACTOR_MDZOFF:
-        spriteext[iActor].zoff=lVar1;
+        spriteext[iActor].offset.z=lVar1;
         return;
 
     case ACTOR_MDFLAGS:
@@ -2697,10 +2697,11 @@ static void __fastcall VM_GetSprite(int32_t lVar1, int32_t lLabelID, int32_t lVa
     if (lVar1 != g_iThisActorID)
         iActor=Gv_GetVarX(lVar1);
 
-    if ((unsigned)iActor >= MAXSPRITES)
+    if (EDUKE32_PREDICT_FALSE((unsigned)iActor >= MAXSPRITES))
         goto badactor;
 
-    if (ActorLabels[lLabelID].flags & LABEL_HASPARM2 && (unsigned)lParm2 >= (unsigned)ActorLabels[lLabelID].maxParm2)
+    if (EDUKE32_PREDICT_FALSE(ActorLabels[lLabelID].flags & LABEL_HASPARM2 &&
+        (unsigned)lParm2 >= (unsigned)ActorLabels[lLabelID].maxParm2))
         goto badpos;
 
     switch (lLabelID)
@@ -2890,15 +2891,15 @@ static void __fastcall VM_GetSprite(int32_t lVar1, int32_t lLabelID, int32_t lVa
         return;
 
     case ACTOR_MDXOFF:
-        Gv_SetVarX(lVar2,spriteext[iActor].xoff);
+        Gv_SetVarX(lVar2,spriteext[iActor].offset.x);
         return;
 
     case ACTOR_MDYOFF:
-        Gv_SetVarX(lVar2,spriteext[iActor].yoff);
+        Gv_SetVarX(lVar2,spriteext[iActor].offset.y);
         return;
 
     case ACTOR_MDZOFF:
-        Gv_SetVarX(lVar2,spriteext[iActor].zoff);
+        Gv_SetVarX(lVar2,spriteext[iActor].offset.z);
         return;
 
     case ACTOR_MDFLAGS:
@@ -2952,13 +2953,13 @@ static void __fastcall VM_AccessTsprite(int32_t iSet, int32_t lVar1, int32_t lLa
     if (lVar1 != g_iThisActorID)
         iActor=Gv_GetVarX(lVar1);
 
-    if ((unsigned)iActor >= MAXSPRITES)
+    if (EDUKE32_PREDICT_FALSE((unsigned)iActor >= MAXSPRITES))
         goto badsprite;
 
     if (iSet)
         lValue=Gv_GetVarX(lVar2);
 
-    if (!spriteext[iActor].tspr)
+    if (EDUKE32_PREDICT_FALSE(!spriteext[iActor].tspr))
         goto badtspr;
 
     switch (lLabelID)
@@ -3208,7 +3209,7 @@ static void __fastcall VM_AccessProjectile(int32_t iSet, int32_t lVar1, int32_t
 {
     int32_t lValue=0;
 
-    if ((unsigned)lVar1 >= MAXTILES)
+    if (EDUKE32_PREDICT_FALSE((unsigned)lVar1 >= MAXTILES))
         goto badtile;
 
     if (iSet)
@@ -3498,7 +3499,8 @@ badtile:
 #else
 static int32_t __fastcall VM_AccessSpriteX(int32_t iActor, int32_t lLabelID, int32_t lParm2)
 {
-    if (ActorLabels[lLabelID].flags & LABEL_HASPARM2 && (unsigned)lParm2 >= (unsigned)ActorLabels[lLabelID].maxParm2)
+    if (EDUKE32_PREDICT_FALSE(ActorLabels[lLabelID].flags & LABEL_HASPARM2 &&
+        (unsigned)lParm2 >= (unsigned)ActorLabels[lLabelID].maxParm2))
         goto badpos;
 
     switch (lLabelID)
@@ -3549,9 +3551,9 @@ static int32_t __fastcall VM_AccessSpriteX(int32_t iActor, int32_t lLabelID, int
     case ACTOR_ANGOFF: return spriteext[iActor].angoff;
     case ACTOR_PITCH: return spriteext[iActor].pitch;
     case ACTOR_ROLL: return spriteext[iActor].roll;
-    case ACTOR_MDXOFF: return spriteext[iActor].xoff;
-    case ACTOR_MDYOFF: return spriteext[iActor].yoff;
-    case ACTOR_MDZOFF: return spriteext[iActor].zoff;
+    case ACTOR_MDXOFF: return spriteext[iActor].offset.x;
+    case ACTOR_MDYOFF: return spriteext[iActor].offset.y;
+    case ACTOR_MDZOFF: return spriteext[iActor].offset.z;
     case ACTOR_MDFLAGS: return spriteext[iActor].flags;
     case ACTOR_XPANNING: return spriteext[iActor].xpanning;
     case ACTOR_YPANNING: return spriteext[iActor].ypanning;
@@ -3611,7 +3613,8 @@ static int32_t __fastcall VM_AccessPlayerX(int32_t iPlayer, int32_t lLabelID, in
 {
     DukePlayer_t *const ps = g_player[iPlayer].ps;
 
-    if (PlayerLabels[lLabelID].flags & LABEL_HASPARM2 && (unsigned)lParm2 >= (unsigned)PlayerLabels[lLabelID].maxParm2)
+    if (EDUKE32_PREDICT_FALSE(PlayerLabels[lLabelID].flags & LABEL_HASPARM2 &&
+        (unsigned)lParm2 >= (unsigned)PlayerLabels[lLabelID].maxParm2))
         goto badpos;
 
     switch (lLabelID)
diff --git a/polymer/eduke32/source/gamevars.c b/polymer/eduke32/source/gamevars.c
index d3ea38fae..058b96646 100644
--- a/polymer/eduke32/source/gamevars.c
+++ b/polymer/eduke32/source/gamevars.c
@@ -388,7 +388,7 @@ int32_t Gv_NewArray(const char *pszLabel, void *arrayptr, intptr_t asize, uint32
 {
     int32_t i;
 
-    if (g_gameArrayCount >= MAXGAMEARRAYS)
+    if (EDUKE32_PREDICT_FALSE(g_gameArrayCount >= MAXGAMEARRAYS))
     {
         g_numCompilerErrors++;
         C_ReportError(-1);
@@ -396,7 +396,7 @@ int32_t Gv_NewArray(const char *pszLabel, void *arrayptr, intptr_t asize, uint32
         return 0;
     }
 
-    if (Bstrlen(pszLabel) > (MAXARRAYLABEL-1))
+    if (EDUKE32_PREDICT_FALSE(Bstrlen(pszLabel) > (MAXARRAYLABEL-1)))
     {
         g_numCompilerErrors++;
         C_ReportError(-1);
@@ -404,7 +404,8 @@ int32_t Gv_NewArray(const char *pszLabel, void *arrayptr, intptr_t asize, uint32
         return 0;
     }
     i = hash_find(&h_arrays,pszLabel);
-    if (i >=0 && !(aGameArrays[i].dwFlags & GAMEARRAY_RESET))
+
+    if (EDUKE32_PREDICT_FALSE(i >=0 && !(aGameArrays[i].dwFlags & GAMEARRAY_RESET)))
     {
         // found it it's a duplicate in error
 
@@ -449,7 +450,7 @@ int32_t Gv_NewVar(const char *pszLabel, intptr_t lValue, uint32_t dwFlags)
     //Bsprintf(g_szBuf,"Gv_NewVar(%s, %d, %X)",pszLabel, lValue, dwFlags);
     //AddLog(g_szBuf);
 
-    if (g_gameVarCount >= MAXGAMEVARS)
+    if (EDUKE32_PREDICT_FALSE(g_gameVarCount >= MAXGAMEVARS))
     {
         g_numCompilerErrors++;
         C_ReportError(-1);
@@ -457,7 +458,7 @@ int32_t Gv_NewVar(const char *pszLabel, intptr_t lValue, uint32_t dwFlags)
         return 0;
     }
 
-    if (Bstrlen(pszLabel) > (MAXVARLABEL-1))
+    if (EDUKE32_PREDICT_FALSE(Bstrlen(pszLabel) > (MAXVARLABEL-1)))
     {
         g_numCompilerErrors++;
         C_ReportError(-1);
@@ -470,13 +471,13 @@ int32_t Gv_NewVar(const char *pszLabel, intptr_t lValue, uint32_t dwFlags)
     if (i >= 0 && !(aGameVars[i].dwFlags & GAMEVAR_RESET))
     {
         // found it...
-        if (aGameVars[i].dwFlags & (GAMEVAR_PTR_MASK))
+        if (EDUKE32_PREDICT_FALSE(aGameVars[i].dwFlags & (GAMEVAR_PTR_MASK)))
         {
             C_ReportError(-1);
             initprintf("%s:%d: warning: cannot redefine internal gamevar `%s'.\n",g_szScriptFileName,g_lineNumber,label+(g_numLabels<<6));
             return 0;
         }
-        else if (!(aGameVars[i].dwFlags & GAMEVAR_SYSTEM))
+        else if (EDUKE32_PREDICT_FALSE(!(aGameVars[i].dwFlags & GAMEVAR_SYSTEM)))
         {
             // it's a duplicate in error
             g_numCompilerWarnings++;
@@ -552,138 +553,138 @@ void __fastcall A_ResetVars(int32_t iActor)
 static int32_t Gv_GetVarIndex(const char *szGameLabel)
 {
     int32_t i = hash_find(&h_gamevars,szGameLabel);
-    if (i == -1)
+
+    if (EDUKE32_PREDICT_FALSE(i == -1))
     {
         OSD_Printf(OSD_ERROR "Gv_GetVarIndex(): INTERNAL ERROR: couldn't find gamevar %s!\n",szGameLabel);
         return 0;
     }
+
     return i;
 }
 
 int32_t __fastcall Gv_GetVar(int32_t id, int32_t iActor, int32_t iPlayer)
 {
+    int negateResult;
+
     if (id == g_iThisActorID)
         return iActor;
 
     if (id == MAXGAMEVARS)
         return(*insptr++);
 
+    negateResult = id&(MAXGAMEVARS<<1);
+
+    if (EDUKE32_PREDICT_FALSE(id >= g_gameVarCount && !negateResult))
+        goto nastyhacks;
+
+    id &= (MAXGAMEVARS-1);
+
+    switch (aGameVars[id].dwFlags &
+        (GAMEVAR_USER_MASK|GAMEVAR_PTR_MASK))
     {
-        intptr_t negateResult = id&(MAXGAMEVARS<<1);
+    default:
+        return ((aGameVars[id].val.lValue ^ -negateResult) + negateResult);
+    case GAMEVAR_PERPLAYER:
+        if (EDUKE32_PREDICT_FALSE((unsigned) iPlayer >= MAXPLAYERS)) goto bad_id;
+        return ((aGameVars[id].val.plValues[iPlayer] ^ -negateResult) + negateResult);
+    case GAMEVAR_PERACTOR:
+        if (EDUKE32_PREDICT_FALSE((unsigned) iActor >= MAXSPRITES)) goto bad_id;
+        return ((aGameVars[id].val.plValues[iActor] ^ -negateResult) + negateResult);
+    case GAMEVAR_INTPTR:
+        return (((*((int32_t *) aGameVars[id].val.lValue)) ^ -negateResult) + negateResult);
+    case GAMEVAR_SHORTPTR:
+        return (((*((int16_t *) aGameVars[id].val.lValue)) ^ -negateResult) + negateResult);
+    case GAMEVAR_CHARPTR:
+        return (((*((char *) aGameVars[id].val.lValue)) ^ -negateResult) + negateResult);
+    }
 
-        if (id >= g_gameVarCount)
+nastyhacks:
+    if (id&(MAXGAMEVARS<<2)) // array
+    {
+        int32_t index=Gv_GetVar(*insptr++, iActor, iPlayer);
+
+        id &= (MAXGAMEVARS-1);// ~((MAXGAMEVARS<<2)|(MAXGAMEVARS<<1));
+
+        if (EDUKE32_PREDICT_FALSE((unsigned) index >= (unsigned) aGameArrays[id].size))
         {
-            if (id&(MAXGAMEVARS<<2)) // array
-            {
-                int32_t index=Gv_GetVar(*insptr++,iActor,iPlayer);
-
-                id &= (MAXGAMEVARS-1);// ~((MAXGAMEVARS<<2)|(MAXGAMEVARS<<1));
-
-                if ((unsigned)index >= (unsigned)aGameArrays[id].size)
-                {
-                    iActor = index;
-                    goto badindex;
-                }
-
-                return ((aGameArrays[id].plValues[index] ^ -negateResult) + negateResult);
-            }
-
-            if (id&(MAXGAMEVARS<<3)) // struct shortcut vars
-            {
-                int32_t index=Gv_GetVar(*insptr++, iActor, iPlayer);
-
-                switch ((id&(MAXGAMEVARS-1)) - g_iSpriteVarID)
-                {
-                case 0: //if (id == g_iSpriteVarID)
-                {
-                    int32_t parm2 = 0, label = *insptr++;
-
-                    /*OSD_Printf("%d %d %d\n",__LINE__,index,label);*/
-                    if (ActorLabels[label].flags & LABEL_HASPARM2)
-                        parm2 = Gv_GetVar(*insptr++, iActor, iPlayer);
-
-                    if ((unsigned)index >= MAXSPRITES)
-                    {
-                        iPlayer = index;
-                        goto badsprite;
-                    }
-
-                    return ((VM_AccessSpriteX(index, label, parm2) ^ -negateResult) + negateResult);
-                }
-                case 3: //else if (id == g_iPlayerVarID)
-                {
-                    int32_t parm2 = 0, label = *insptr++;
-
-                    if (PlayerLabels[label].flags & LABEL_HASPARM2)
-                        parm2 = Gv_GetVar(*insptr++, iActor, iPlayer);
-
-                    if (index == vm.g_i) index = vm.g_p;
-
-                    if ((unsigned)index >= MAXPLAYERS)
-                    {
-                        iPlayer = index;
-                        goto badplayer;
-                    }
-
-                    return ((VM_AccessPlayerX(index, label, parm2) ^ -negateResult) + negateResult);
-                }
-                case 4: //else if (id == g_iActorVarID)
-                    return ((Gv_GetVar(*insptr++, index, iPlayer) ^ -negateResult) + negateResult);
-                case 1: //else if (id == g_iSectorVarID)
-                    if (index == vm.g_i) index = sprite[vm.g_i].sectnum;
-                    if ((unsigned)index >= MAXSECTORS)
-                    {
-                        iPlayer = index;
-                        insptr++;
-                        goto badsector;
-                    }
-                    return ((VM_AccessSectorX(index, *insptr++) ^ -negateResult) + negateResult);
-                case 2: //else if (id == g_iWallVarID)
-                    if ((unsigned)index >= MAXWALLS)
-                    {
-                        iPlayer = index;
-                        insptr++;
-                        goto badwall;
-                    }
-                    return ((VM_AccessWallX(index, *insptr++) ^ -negateResult) + negateResult);
-                default:
-                    goto wtf;
-                }
-            }
-
-            id &= (MAXGAMEVARS-1);
-
-            if (!negateResult)
-                goto badvarid;
+            iActor = index;
+            goto badindex;
         }
 
-        switch (aGameVars[id].dwFlags &
-                (GAMEVAR_USER_MASK|GAMEVAR_PTR_MASK))
+        return ((aGameArrays[id].plValues[index] ^ -negateResult) + negateResult);
+    }
+
+    if (id&(MAXGAMEVARS<<3)) // struct shortcut vars
+    {
+        int32_t index=Gv_GetVar(*insptr++, iActor, iPlayer);
+
+        switch ((id&(MAXGAMEVARS-1)) - g_iSpriteVarID)
         {
+        case 0: //if (id == g_iSpriteVarID)
+        {
+            int32_t parm2 = 0, label = *insptr++;
+
+            /*OSD_Printf("%d %d %d\n",__LINE__,index,label);*/
+            if (EDUKE32_PREDICT_FALSE(ActorLabels[label].flags & LABEL_HASPARM2))
+                parm2 = Gv_GetVar(*insptr++, iActor, iPlayer);
+
+            if (EDUKE32_PREDICT_FALSE((unsigned) index >= MAXSPRITES))
+            {
+                iPlayer = index;
+                goto badsprite;
+            }
+
+            return ((VM_AccessSpriteX(index, label, parm2) ^ -negateResult) + negateResult);
+        }
+        case 3: //else if (id == g_iPlayerVarID)
+        {
+            int32_t parm2 = 0, label = *insptr++;
+
+            if (EDUKE32_PREDICT_FALSE(PlayerLabels[label].flags & LABEL_HASPARM2))
+                parm2 = Gv_GetVar(*insptr++, iActor, iPlayer);
+
+            if (index == vm.g_i) index = vm.g_p;
+
+            if (EDUKE32_PREDICT_FALSE((unsigned) index >= MAXPLAYERS))
+            {
+                iPlayer = index;
+                goto badplayer;
+            }
+
+            return ((VM_AccessPlayerX(index, label, parm2) ^ -negateResult) + negateResult);
+        }
+        case 4: //else if (id == g_iActorVarID)
+            return ((Gv_GetVar(*insptr++, index, iPlayer) ^ -negateResult) + negateResult);
+        case 1: //else if (id == g_iSectorVarID)
+            if (index == vm.g_i) index = sprite[vm.g_i].sectnum;
+            if (EDUKE32_PREDICT_FALSE((unsigned) index >= MAXSECTORS))
+            {
+                iPlayer = index;
+                insptr++;
+                goto badsector;
+            }
+            return ((VM_AccessSectorX(index, *insptr++) ^ -negateResult) + negateResult);
+        case 2: //else if (id == g_iWallVarID)
+            if (EDUKE32_PREDICT_FALSE((unsigned) index >= MAXWALLS))
+            {
+                iPlayer = index;
+                insptr++;
+                goto badwall;
+            }
+            return ((VM_AccessWallX(index, *insptr++) ^ -negateResult) + negateResult);
         default:
-            return ((aGameVars[id].val.lValue ^ -negateResult) + negateResult);
-        case GAMEVAR_PERPLAYER:
-            if ((unsigned)iPlayer >= MAXPLAYERS) goto bad_id;
-            return ((aGameVars[id].val.plValues[iPlayer] ^ -negateResult) + negateResult);
-        case GAMEVAR_PERACTOR:
-            if ((unsigned)iActor >= MAXSPRITES) goto bad_id;
-            return ((aGameVars[id].val.plValues[iActor] ^ -negateResult) + negateResult);
-        case GAMEVAR_INTPTR:
-            return (((*((int32_t *)aGameVars[id].val.lValue)) ^ -negateResult) + negateResult);
-        case GAMEVAR_SHORTPTR:
-            return (((*((int16_t *)aGameVars[id].val.lValue)) ^ -negateResult) + negateResult);
-        case GAMEVAR_CHARPTR:
-            return (((*((char *)aGameVars[id].val.lValue)) ^ -negateResult) + negateResult);
+            EDUKE32_UNREACHABLE_SECTION(return -1);
         }
     }
 
+    CON_ERRPRINTF("Gv_GetVar(): invalid gamevar ID (%d)\n", id);
+    return -1;
+
 bad_id:
     CON_ERRPRINTF("Gv_GetVar(): invalid sprite/player ID %d/%d\n", iActor,iPlayer);
     return -1;
 
-badvarid:
-    CON_ERRPRINTF("Gv_GetVar(): invalid gamevar ID (%d)\n", id);
-    return -1;
 
 badindex:
     CON_ERRPRINTF("Gv_GetVar(): invalid array index (%s[%d])\n", aGameArrays[id].szLabel,iActor);
@@ -704,15 +705,11 @@ badsector:
 badwall:
     CON_ERRPRINTF("Gv_GetVar(): invalid wall ID %d\n", iPlayer);
     return -1;
-
-wtf:
-    CON_ERRPRINTF("Gv_GetVar(): WTF?\n");
-    return -1;
 }
 
 void __fastcall Gv_SetVar(int32_t id, int32_t lValue, int32_t iActor, int32_t iPlayer)
 {
-    if ((unsigned)id >= (unsigned)g_gameVarCount) goto badvarid;
+    if (EDUKE32_PREDICT_FALSE((unsigned)id >= (unsigned)g_gameVarCount)) goto badvarid;
 
     //Bsprintf(g_szBuf,"SGVI: %d (\"%s\") to %d for %d %d",id,aGameVars[id].szLabel,lValue,iActor,iPlayer);
     //AddLog(g_szBuf);
@@ -723,12 +720,12 @@ void __fastcall Gv_SetVar(int32_t id, int32_t lValue, int32_t iActor, int32_t iP
         aGameVars[id].val.lValue=lValue;
         return;
     case GAMEVAR_PERPLAYER:
-        if ((unsigned)iPlayer > MAXPLAYERS-1) goto badindex;
+        if (EDUKE32_PREDICT_FALSE((unsigned)iPlayer > MAXPLAYERS-1)) goto badindex;
         // for the current player
         aGameVars[id].val.plValues[iPlayer]=lValue;
         return;
     case GAMEVAR_PERACTOR:
-        if ((unsigned)iActor > MAXSPRITES-1) goto badindex;
+        if (EDUKE32_PREDICT_FALSE((unsigned)iActor > MAXSPRITES-1)) goto badindex;
         aGameVars[id].val.plValues[iActor]=lValue;
         return;
     case GAMEVAR_INTPTR:
@@ -761,8 +758,6 @@ enum {
     GVX_BADSECTOR,
     GVX_BADWALL,
     GVX_BADINDEX,
-    GVX_WTF,
-    GVX_ARRAYWTF
 } gvxerror_t;
 
 static const char *gvxerrs [] ={ "Gv_GetVarX(): invalid gamevar ID",
@@ -771,8 +766,6 @@ static const char *gvxerrs [] ={ "Gv_GetVarX(): invalid gamevar ID",
 "Gv_GetVarX(): invalid sector ID",
 "Gv_GetVarX(): invalid wall ID",
 "Gv_GetVarX(): invalid array index",
-"Gv_GetVarX(): WTF?",
-"Gv_GetVarX() (array): WTF?"
 };
 
 int32_t __fastcall Gv_GetVarX(int32_t id)
@@ -785,7 +778,7 @@ int32_t __fastcall Gv_GetVarX(int32_t id)
     if (id == MAXGAMEVARS)
         return(*insptr++);
 
-    if (id >= g_gameVarCount && negateResult == 0)
+    if (EDUKE32_PREDICT_FALSE(id >= g_gameVarCount && negateResult == 0))
         goto nastyhacks;
 
     id &= MAXGAMEVARS-1;
@@ -795,7 +788,7 @@ int32_t __fastcall Gv_GetVarX(int32_t id)
     default:
         return ((aGameVars[id].val.lValue ^ -negateResult) + negateResult);
     case GAMEVAR_PERPLAYER:
-        if ((unsigned) vm.g_p >= MAXPLAYERS)
+        if (EDUKE32_PREDICT_FALSE((unsigned) vm.g_p >= MAXPLAYERS))
         {
             id = vm.g_p;
             CON_ERRPRINTF("%s %d\n", gvxerrs[GVX_BADPLAYER], id);
@@ -820,12 +813,9 @@ nastyhacks:
 
         id &= (MAXGAMEVARS-1);// ~((MAXGAMEVARS<<2)|(MAXGAMEVARS<<1));
 
-        if (aGameArrays[id].dwFlags & GAMEARRAY_VARSIZE)
-            siz = Gv_GetVarX(aGameArrays[id].size);
-        else
-            siz = aGameArrays[id].size;
+        siz = (aGameArrays[id].dwFlags & GAMEARRAY_VARSIZE) ? Gv_GetVarX(aGameArrays[id].size) : aGameArrays[id].size;
 
-        if (index < 0 || index >= siz)
+        if (EDUKE32_PREDICT_FALSE(index < 0 || index >= siz))
         {
             negateResult = index;
             CON_ERRPRINTF("%s %s[%d]\n", gvxerrs[GVX_BADINDEX], aGameArrays[id].szLabel, index);;
@@ -843,8 +833,7 @@ nastyhacks:
         case GAMEARRAY_OFCHAR:
             return (((uint8_t *) aGameArrays[id].plValues)[index] ^ -negateResult) + negateResult;
         default:
-            CON_ERRPRINTF("%s\n", gvxerrs[GVX_ARRAYWTF]);
-            return -1;
+            EDUKE32_UNREACHABLE_SECTION(return -1);
         }
     }
 
@@ -859,10 +848,10 @@ nastyhacks:
             int32_t parm2 = 0, label = *insptr++;
 
             /*OSD_Printf("%d %d %d\n",__LINE__,index,label);*/
-            if (ActorLabels[label].flags & LABEL_HASPARM2)
+            if (EDUKE32_PREDICT_FALSE(ActorLabels[label].flags & LABEL_HASPARM2))
                 parm2 = Gv_GetVarX(*insptr++);
 
-            if ((unsigned) index >= MAXSPRITES)
+            if (EDUKE32_PREDICT_FALSE((unsigned) index >= MAXSPRITES))
             {
                 id = index;
                 CON_ERRPRINTF("%s %d\n", gvxerrs[GVX_BADSPRITE], id);
@@ -875,12 +864,12 @@ nastyhacks:
         {
             int32_t parm2 = 0, label = *insptr++;
 
-            if (PlayerLabels[label].flags & LABEL_HASPARM2)
+            if (EDUKE32_PREDICT_FALSE(PlayerLabels[label].flags & LABEL_HASPARM2))
                 parm2 = Gv_GetVarX(*insptr++);
 
             if (index == vm.g_i) index = vm.g_p;
 
-            if ((unsigned) index >= MAXPLAYERS)
+            if (EDUKE32_PREDICT_FALSE((unsigned) index >= MAXPLAYERS))
             {
                 id = index;
                 CON_ERRPRINTF("%s %d\n", gvxerrs[GVX_BADPLAYER], id);
@@ -892,7 +881,7 @@ nastyhacks:
             return ((Gv_GetVar(*insptr++, index, vm.g_p) ^ -negateResult) + negateResult);
         case 1: //else if (id == g_iSectorVarID)
             if (index == vm.g_i) index = sprite[vm.g_i].sectnum;
-            if ((unsigned) index >= MAXSECTORS)
+            if (EDUKE32_PREDICT_FALSE((unsigned) index >= MAXSECTORS))
             {
                 id = index;
                 insptr++;
@@ -901,7 +890,7 @@ nastyhacks:
             }
             return ((VM_AccessSectorX(index, *insptr++) ^ -negateResult) + negateResult);
         case 2: //else if (id == g_iWallVarID)
-            if ((unsigned) index >= MAXWALLS)
+            if (EDUKE32_PREDICT_FALSE((unsigned) index >= MAXWALLS))
             {
                 id = index;
                 insptr++;
@@ -910,13 +899,11 @@ nastyhacks:
             }
             return ((VM_AccessWallX(index, *insptr++) ^ -negateResult) + negateResult);
         default:
-            CON_ERRPRINTF("Gv_GetVarX(): WTF?\n");
-            return -1;
+            EDUKE32_UNREACHABLE_SECTION(return -1);
         }
     }
 
-    CON_ERRPRINTF("%s\n", gvxerrs[GVX_WTF]);
-    return -1;
+    EDUKE32_UNREACHABLE_SECTION(return -1);
 }
 
 void __fastcall Gv_SetVarX(int32_t id, int32_t lValue)
@@ -927,11 +914,11 @@ void __fastcall Gv_SetVarX(int32_t id, int32_t lValue)
         aGameVars[id].val.lValue=lValue;
         return;
     case GAMEVAR_PERPLAYER:
-        if ((unsigned)vm.g_p > MAXPLAYERS-1) goto badindex;
+        if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_p > MAXPLAYERS-1)) goto badindex;
         aGameVars[id].val.plValues[vm.g_p]=lValue;
         return;
     case GAMEVAR_PERACTOR:
-        if ((unsigned)vm.g_i > MAXSPRITES-1) goto badindex;
+        if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_i > MAXSPRITES-1)) goto badindex;
         aGameVars[id].val.plValues[vm.g_i]=lValue;
         return;
     case GAMEVAR_INTPTR:
@@ -956,22 +943,19 @@ int32_t Gv_GetVarByLabel(const char *szGameLabel, int32_t lDefault, int32_t iAct
 {
     int32_t i = hash_find(&h_gamevars,szGameLabel);
 
-    if (i < 0)
-        return lDefault;
-
-    return Gv_GetVar(i, iActor, iPlayer);
+    return EDUKE32_PREDICT_FALSE(i < 0) ? lDefault : Gv_GetVar(i, iActor, iPlayer);
 }
 
 static intptr_t *Gv_GetVarDataPtr(const char *szGameLabel)
 {
     int32_t i = hash_find(&h_gamevars,szGameLabel);
 
-    if (i < 0)
+    if (EDUKE32_PREDICT_FALSE(i < 0))
         return NULL;
 
     if (aGameVars[i].dwFlags & (GAMEVAR_PERACTOR | GAMEVAR_PERPLAYER))
     {
-        if (!aGameVars[i].val.plValues)
+        if (EDUKE32_PREDICT_FALSE(!aGameVars[i].val.plValues))
             CON_ERRPRINTF("Gv_GetVarDataPtr(): INTERNAL ERROR: NULL array !!!\n");
         return aGameVars[i].val.plValues;
     }
@@ -983,7 +967,7 @@ static intptr_t *Gv_GetVarDataPtr(const char *szGameLabel)
 static void G_InitProjectileData(void)
 {
     int32_t i;
-    for (i=MAXTILES-1; i>=0; i--)
+    for (i=0; i<=MAXTILES-1; i++)
         Bmemcpy(&ProjectileData[i], &g_tile[i].defproj, sizeof(projectile_t));
 }
 
diff --git a/polymer/eduke32/source/gamevars.h b/polymer/eduke32/source/gamevars.h
index 8cdec7111..98c23461e 100644
--- a/polymer/eduke32/source/gamevars.h
+++ b/polymer/eduke32/source/gamevars.h
@@ -129,11 +129,11 @@ void Gv_FinalizeWeaponDefaults(void);
         aGameVars[id].val.lValue operator lValue; \
         break; \
     case GAMEVAR_PERPLAYER: \
-        if ((unsigned)vm.g_p > MAXPLAYERS-1) break; \
+        if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_p > MAXPLAYERS-1)) break; \
         aGameVars[id].val.plValues[vm.g_p] operator lValue; \
         break; \
     case GAMEVAR_PERACTOR: \
-        if ((unsigned)vm.g_i > MAXSPRITES-1) break; \
+        if (EDUKE32_PREDICT_FALSE((unsigned)vm.g_i > MAXSPRITES-1)) break; \
         aGameVars[id].val.plValues[vm.g_i] operator lValue; \
         break; \
     case GAMEVAR_INTPTR: \
@@ -158,8 +158,8 @@ static inline void __fastcall Gv_DivVar(int32_t id, int32_t lValue)
     libdivide_s32_t *dptr = &sdiv;
     intptr_t *iptr = &aGameVars[id].val.lValue;
 
-    if ((aGameVars[id].dwFlags & GAMEVAR_PERPLAYER && (unsigned) vm.g_p > MAXPLAYERS-1) ||
-        (aGameVars[id].dwFlags & GAMEVAR_PERACTOR && (unsigned) vm.g_i > MAXSPRITES-1)) return;
+    if (EDUKE32_PREDICT_FALSE((aGameVars[id].dwFlags & GAMEVAR_PERPLAYER && (unsigned) vm.g_p > MAXPLAYERS-1) || 
+        (aGameVars[id].dwFlags & GAMEVAR_PERACTOR && (unsigned) vm.g_i > MAXSPRITES-1))) return;
 
     if ((unsigned) lValue < DIVTABLESIZE)
         dptr = (libdivide_s32_t *)&divtable32[lValue];
diff --git a/polymer/eduke32/source/menus.c b/polymer/eduke32/source/menus.c
index 0c838cfed..cee81f7e6 100644
--- a/polymer/eduke32/source/menus.c
+++ b/polymer/eduke32/source/menus.c
@@ -3143,8 +3143,7 @@ void M_ChangeMenu(MenuID_t cm)
     Menu_t *search;
     int32_t i;
 
-    if (G_HaveEvent(EVENT_CHANGEMENU))
-        cm = VM_OnEvent(EVENT_CHANGEMENU, g_player[myconnectindex].ps->i, myconnectindex, -1, cm);
+    cm = VM_OnEvent(EVENT_CHANGEMENU, g_player[myconnectindex].ps->i, myconnectindex, -1, cm);
 
     if (cm == MENU_PREVIOUS)
     {
@@ -4816,8 +4815,7 @@ void M_DisplayMenus(void)
         return;
     }
 
-    if (G_HaveEvent(EVENT_DISPLAYMENU))
-        VM_OnEvent(EVENT_DISPLAYMENU, g_player[screenpeek].ps->i, screenpeek, -1, 0);
+    VM_OnEvent(EVENT_DISPLAYMENU, g_player[screenpeek].ps->i, screenpeek, -1, 0);
 
     g_player[myconnectindex].ps->gm &= (0xff-MODE_TYPE);
     g_player[myconnectindex].ps->fta = 0;
@@ -4847,7 +4845,7 @@ void M_DisplayMenus(void)
     gltexapplyprops();
 #endif
 
-    if (G_HaveEvent(EVENT_DISPLAYMENUREST))
+    if (VM_HaveEvent(EVENT_DISPLAYMENUREST))
         VM_OnEvent(EVENT_DISPLAYMENUREST, g_player[screenpeek].ps->i, screenpeek, -1, 0);
 
     if ((g_player[myconnectindex].ps->gm&MODE_MENU) != MODE_MENU)
diff --git a/polymer/eduke32/source/osdcmds.c b/polymer/eduke32/source/osdcmds.c
index 3c5b5fbee..99dfc0185 100644
--- a/polymer/eduke32/source/osdcmds.c
+++ b/polymer/eduke32/source/osdcmds.c
@@ -1403,8 +1403,7 @@ static int32_t osdcmd_cvar_set_game(const osdfuncparm_t *parm)
     }
     else if (!Bstrcasecmp(parm->name, "r_maxfps"))
     {
-        if (r_maxfps) g_frameDelay = (int32_t)lround(1000.f/(float)r_maxfps);
-        else g_frameDelay = 0;
+        g_frameDelay = r_maxfps ? Blrintf(1000.f/(float)r_maxfps) : 0;
 
         return r;
     }
diff --git a/polymer/eduke32/source/player.c b/polymer/eduke32/source/player.c
index 4286742fb..ef04f0dfb 100644
--- a/polymer/eduke32/source/player.c
+++ b/polymer/eduke32/source/player.c
@@ -350,8 +350,7 @@ static int32_t GetAutoAimAngle(int32_t i, int32_t p, int32_t atwith,
     Gv_SetVar(g_iAimAngleVarID, g_player[p].ps->auto_aim == 3 ? AUTO_AIM_ANGLE<<1 : AUTO_AIM_ANGLE, i, p);
 #endif
 
-    if (G_HaveEvent(EVENT_GETAUTOAIMANGLE))
-        VM_OnEvent(EVENT_GETAUTOAIMANGLE, i, p, -1, 0);
+    VM_OnEvent(EVENT_GETAUTOAIMANGLE, i, p, -1, 0);
 
     {
 #ifdef LUNATIC
@@ -473,8 +472,7 @@ static void P_PreFireHitscan(int32_t i, int32_t p, int32_t atwith,
     Gv_SetVar(g_iZRangeVarID,zRange,i,p);
 #endif
 
-    if (G_HaveEvent(EVENT_GETSHOTRANGE))
-        VM_OnEvent(EVENT_GETSHOTRANGE, i,p, -1, 0);
+    VM_OnEvent(EVENT_GETSHOTRANGE, i, p, -1, 0);
 
 #ifdef LUNATIC
     angRange = ps->angrange;
@@ -783,18 +781,20 @@ static int32_t A_PostFireHitscan(const hitdata_t *hit, int32_t i, int32_t atwith
 static int32_t Proj_CheckBlood(const vec3_t *srcvect, const hitdata_t *hit,
                                int32_t projrange, int32_t minzdiff)
 {
-    if (hit->wall >= 0 && hit->sect >= 0)
-    {
-        const walltype *const hitwal = &wall[hit->wall];
+    const walltype * hitwal;
 
-        if (FindDistance2D(srcvect->x-hit->pos.x, srcvect->y-hit->pos.y) < projrange)
-            if (hitwal->overpicnum != BIGFORCE && (hitwal->cstat&16) == 0)
-                if (sector[hit->sect].lotag == 0)
-                    if (hitwal->nextsector < 0 ||
-                        (sector[hitwal->nextsector].lotag == 0 && sector[hit->sect].lotag == 0 &&
-                         sector[hit->sect].floorz-sector[hitwal->nextsector].floorz > minzdiff))
+    if (hit->wall < 0 || hit->sect < 0)
+        return 0;
+
+    hitwal = &wall[hit->wall];
+
+    if (FindDistance2D(srcvect->x-hit->pos.x, srcvect->y-hit->pos.y) < projrange)
+        if (hitwal->overpicnum != BIGFORCE && (hitwal->cstat&16) == 0)
+            if (sector[hit->sect].lotag == 0)
+                if (hitwal->nextsector < 0 ||
+                    (sector[hitwal->nextsector].lotag == 0 && sector[hit->sect].lotag == 0 &&
+                    sector[hit->sect].floorz-sector[hitwal->nextsector].floorz > minzdiff))
                     return 1;
-    }
 
     return 0;
 }
@@ -868,7 +868,7 @@ static int32_t A_ShootCustom(const int32_t i, const int32_t atwith, int16_t sa,
     DukePlayer_t *const ps = p >= 0 ? g_player[p].ps : NULL;
 
 #ifdef POLYMER
-    if (proj->flashcolor)
+    if (getrendermode() == REND_POLYMER && proj->flashcolor)
     {
         int32_t x = ((sintable[(s->ang + 512) & 2047]) >> 7), y = ((sintable[(s->ang) & 2047]) >> 7);
 
@@ -2928,10 +2928,10 @@ void P_GetInput(int32_t snum)
     loc.extbits |= (BUTTON(gamefunc_Strafe_Left) || (svel > 0))<<2;
     loc.extbits |= (BUTTON(gamefunc_Strafe_Right) || (svel < 0))<<3;
 
-    if (G_HaveEvent(EVENT_PROCESSINPUT) || G_HaveEvent(EVENT_TURNLEFT))
+    if (VM_HaveEvent(EVENT_PROCESSINPUT) || VM_HaveEvent(EVENT_TURNLEFT))
         loc.extbits |= BUTTON(gamefunc_Turn_Left)<<4;
 
-    if (G_HaveEvent(EVENT_PROCESSINPUT) || G_HaveEvent(EVENT_TURNRIGHT))
+    if (VM_HaveEvent(EVENT_PROCESSINPUT) || VM_HaveEvent(EVENT_TURNRIGHT))
         loc.extbits |= BUTTON(gamefunc_Turn_Right)<<5;
 
     // used for changing team
@@ -3222,7 +3222,7 @@ static void P_ChangeWeapon(DukePlayer_t *p, int32_t weapon)
     if (p->reloading)
         return;
 
-    if (p->curr_weapon != weapon && G_HaveEvent(EVENT_CHANGEWEAPON))
+    if (p->curr_weapon != weapon && VM_HaveEvent(EVENT_CHANGEWEAPON))
         i = VM_OnEvent(EVENT_CHANGEWEAPON,p->i, snum, -1, weapon);
 
     if (i == -1)
@@ -3754,8 +3754,8 @@ static void P_ProcessWeapon(int32_t snum)
 
             if (VM_OnEvent(EVENT_FIRE, p->i, snum, -1, 0) == 0)
             {
-                if (G_HaveEvent(EVENT_FIREWEAPON)) // this event is deprecated
-                    VM_OnEvent(EVENT_FIREWEAPON, p->i, snum, -1, 0);
+                // this event is deprecated
+                VM_OnEvent(EVENT_FIREWEAPON, p->i, snum, -1, 0);
 
                 switch (PWEAPON(snum, p->curr_weapon, WorksLike))
                 {
diff --git a/polymer/eduke32/source/premap.c b/polymer/eduke32/source/premap.c
index e5b77d37b..e7291504c 100644
--- a/polymer/eduke32/source/premap.c
+++ b/polymer/eduke32/source/premap.c
@@ -718,8 +718,7 @@ void P_ResetPlayer(int32_t snum)
 
     pl->movement_lock = 0;
 
-    if (G_HaveEvent(EVENT_RESETPLAYER))
-        VM_OnEvent(EVENT_RESETPLAYER, pl->i, snum, -1, 0);
+    VM_OnEvent(EVENT_RESETPLAYER, pl->i, snum, -1, 0);
 }
 
 void P_ResetStatus(int32_t snum)
diff --git a/polymer/eduke32/source/sector.c b/polymer/eduke32/source/sector.c
index 9b32038af..93672e912 100644
--- a/polymer/eduke32/source/sector.c
+++ b/polymer/eduke32/source/sector.c
@@ -328,9 +328,9 @@ void G_DoSectorAnimations(void)
 
 int32_t GetAnimationGoal(const int32_t *animptr)
 {
-    int32_t i = g_animateCount-1;
+    int32_t i=0;
 
-    for (; i>=0; i--)
+    for (; i<g_animateCount; i++)
         if (animptr == animateptr[i])
             return i;
     return -1;