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CON: Add if statements if(var(var)){a,b}(e).

Browse source 
Inspired by x86 assembly, these stand for "above" and "below", and perform unsigned versions of greater-than and less-than, respectively.

Useful for testing array bounds.

git-svn-id: https://svn.eduke32.com/eduke32@6640 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
hendricks266 2018-01-31 05:23:48 +00:00
parent 190d71832a
commit f228b68736
6 changed files with 176 additions and 0 deletions
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20
source/duke3d/src/gamedef.cpp
View file

@ -308,7 +308,11 @@ static tokenmap_t const vm_keywords[] =
{ "ifspritepal", CON_IFSPRITEPAL },
{ "ifsquished", CON_IFSQUISHED },
{ "ifstrength", CON_IFSTRENGTH },
{ "ifvara", CON_IFVARA },
{ "ifvarae", CON_IFVARAE },
{ "ifvarand", CON_IFVARAND },
{ "ifvarb", CON_IFVARB },
{ "ifvarbe", CON_IFVARBE },
{ "ifvarboth", CON_IFVARBOTH },
{ "ifvare", CON_IFVARE },
{ "ifvareither", CON_IFVAREITHER },
@ -318,7 +322,11 @@ static tokenmap_t const vm_keywords[] =
{ "ifvarle", CON_IFVARLE },
{ "ifvarn", CON_IFVARN },
{ "ifvaror", CON_IFVAROR },
{ "ifvarvara", CON_IFVARVARA },
{ "ifvarvarae", CON_IFVARVARAE },
{ "ifvarvarand", CON_IFVARVARAND },
{ "ifvarvarb", CON_IFVARVARB },
{ "ifvarvarbe", CON_IFVARVARBE },
{ "ifvarvarboth", CON_IFVARVARBOTH },
{ "ifvarvare", CON_IFVARVARE },
{ "ifvarvareither", CON_IFVARVAREITHER },
@ -534,6 +542,10 @@ static tokenmap_t const vm_keywords[] =
{ "and", CON_ANDVARVAR },
{ "or", CON_ORVARVAR },
{ "xor", CON_XORVARVAR },
{ "ifa", CON_IFVARVARA },
{ "ifae", CON_IFVARVARAE },
{ "ifb", CON_IFVARVARB },
{ "ifbe", CON_IFVARVARBE },
{ "ifl", CON_IFVARVARL },
{ "ifle", CON_IFVARVARLE },
{ "ifg", CON_IFVARVARG },
@ -4638,6 +4650,10 @@ DO_DEFSTATE:
case CON_IFVARVARE:
case CON_IFVARVARLE:
case CON_IFVARVARGE:
case CON_IFVARVARA:
case CON_IFVARVARB:
case CON_IFVARVARAE:
case CON_IFVARVARBE:
case CON_IFVARVARBOTH:
case CON_IFVARVARN:
case CON_IFVARVARAND:
@ -4688,6 +4704,10 @@ DO_DEFSTATE:
case CON_IFVARLE:
case CON_IFVARG:
case CON_IFVARGE:
case CON_IFVARA:
case CON_IFVARAE:
case CON_IFVARB:
case CON_IFVARBE:
case CON_IFVARE:
case CON_IFVARN:
case CON_IFVARAND:

8
source/duke3d/src/gamedef.h
View file

@ -1214,6 +1214,14 @@ enum ScriptKeywords_t
CON_DIVRU, // 413
CON_SWAPTRACKSLOT, // 414
CON_PRELOADTRACKSLOTFORSWAP, // 415
CON_IFVARA, // 416
CON_IFVARVARA, // 417
CON_IFVARAE, // 418
CON_IFVARVARAE, // 419
CON_IFVARB, // 420
CON_IFVARVARB, // 421
CON_IFVARBE, // 422
CON_IFVARVARBE, // 423
CON_END
};
// KEEPINSYNC with the keyword list in lunatic/con_lang.lua

56
source/duke3d/src/gameexec.cpp
View file

@ -5205,6 +5205,38 @@ finish_qsprintf:
VM_CONDITIONAL(tw);
continue;
case CON_IFVARVARA:
insptr++;
tw = Gv_GetVarX(*insptr++);
tw = ((uint32_t)tw > (uint32_t)Gv_GetVarX(*insptr++));
insptr--;
VM_CONDITIONAL(tw);
continue;
case CON_IFVARVARAE:
insptr++;
tw = Gv_GetVarX(*insptr++);
tw = ((uint32_t)tw >= (uint32_t)Gv_GetVarX(*insptr++));
insptr--;
VM_CONDITIONAL(tw);
continue;
case CON_IFVARVARB:
insptr++;
tw = Gv_GetVarX(*insptr++);
tw = ((uint32_t)tw < (uint32_t)Gv_GetVarX(*insptr++));
insptr--;
VM_CONDITIONAL(tw);
continue;
case CON_IFVARVARBE:
insptr++;
tw = Gv_GetVarX(*insptr++);
tw = ((uint32_t)tw <= (uint32_t)Gv_GetVarX(*insptr++));
insptr--;
VM_CONDITIONAL(tw);
continue;
case CON_IFVARN:
insptr++;
tw = Gv_GetVarX(*insptr++);
@ -5474,6 +5506,30 @@ finish_qsprintf:
VM_CONDITIONAL(tw <= *insptr);
continue;
case CON_IFVARA:
insptr++;
tw = Gv_GetVarX(*insptr++);
VM_CONDITIONAL((uint32_t)tw > (uint32_t)*insptr);
continue;
case CON_IFVARAE:
insptr++;
tw = Gv_GetVarX(*insptr++);
VM_CONDITIONAL((uint32_t)tw >= (uint32_t)*insptr);
continue;
case CON_IFVARB:
insptr++;
tw = Gv_GetVarX(*insptr++);
VM_CONDITIONAL((uint32_t)tw < (uint32_t)*insptr);
continue;
case CON_IFVARBE:
insptr++;
tw = Gv_GetVarX(*insptr++);
VM_CONDITIONAL((uint32_t)tw <= (uint32_t)*insptr);
continue;
case CON_IFPHEALTHL:
insptr++;
VM_CONDITIONAL(sprite[pPlayer->i].extra < *insptr);

12
source/duke3d/src/m32def.cpp
View file

@ -163,6 +163,10 @@ const tokenmap_t altkeyw[] =
{ "and", CON_ANDVARVAR },
{ "or", CON_ORVARVAR },
{ "xor", CON_XORVARVAR },
{ "ifa", CON_IFVARVARA },
{ "ifae", CON_IFVARVARAE },
{ "ifb", CON_IFVARVARB },
{ "ifbe", CON_IFVARVARBE },
{ "ifl", CON_IFVARVARL },
{ "ifle", CON_IFVARVARLE },
{ "ifg", CON_IFVARVARG },
@ -263,6 +267,10 @@ const char *keyw[] =
"ifvarle",
"ifvarg",
"ifvarge",
"ifvara",
"ifvarae",
"ifvarb",
"ifvarbe",
"ifvare",
"ifvarn",
"ifvarand",
@ -277,6 +285,10 @@ const char *keyw[] =
"ifvarvarle",
"ifvarvarg",
"ifvarvarge",
"ifvarvara",
"ifvarvarae",
"ifvarvarb",
"ifvarvarbe",
"ifvarvare",
"ifvarvarn",
"ifvarvarand",

8
source/duke3d/src/m32def.h
View file

@ -390,6 +390,10 @@ enum ScriptKeywords_t
CON_IFVARLE,
CON_IFVARG,
CON_IFVARGE,
CON_IFVARA,
CON_IFVARAE,
CON_IFVARB,
CON_IFVARBE,
CON_IFVARE,
CON_IFVARN,
CON_IFVARAND,
@ -405,6 +409,10 @@ enum ScriptKeywords_t
CON_IFVARVARLE,
CON_IFVARVARG,
CON_IFVARVARGE,
CON_IFVARVARA,
CON_IFVARVARAE,
CON_IFVARVARB,
CON_IFVARVARBE,
CON_IFVARVARE,
CON_IFVARVARN,
CON_IFVARVARAND,

72
source/duke3d/src/m32exec.cpp
View file

@ -1096,6 +1096,46 @@ skip_check:
}
continue;
case CON_IFVARVARA:
insptr++;
{
int32_t j = Gv_GetVarX(*insptr++);
j = ((uint32_t)j > (uint32_t)Gv_GetVarX(*insptr++));
insptr--;
VM_DoConditional(j);
}
continue;
case CON_IFVARVARAE:
insptr++;
{
int32_t j = Gv_GetVarX(*insptr++);
j = ((uint32_t)j >= (uint32_t)Gv_GetVarX(*insptr++));
insptr--;
VM_DoConditional(j);
}
continue;
case CON_IFVARVARB:
insptr++;
{
int32_t j = Gv_GetVarX(*insptr++);
j = ((uint32_t)j < (uint32_t)Gv_GetVarX(*insptr++));
insptr--;
VM_DoConditional(j);
}
continue;
case CON_IFVARVARBE:
insptr++;
{
int32_t j = Gv_GetVarX(*insptr++);
j = ((uint32_t)j <= (uint32_t)Gv_GetVarX(*insptr++));
insptr--;
VM_DoConditional(j);
}
continue;
case CON_IFVARE:
insptr++;
{
@ -1527,6 +1567,38 @@ badindex:
}
continue;
case CON_IFVARA:
insptr++;
{
int32_t j=Gv_GetVarX(*insptr++);
VM_DoConditional((uint32_t)j > (uint32_t)*insptr);
}
continue;
case CON_IFVARAE:
insptr++;
{
int32_t j=Gv_GetVarX(*insptr++);
VM_DoConditional((uint32_t)j >= (uint32_t)*insptr);
}
continue;
case CON_IFVARB:
insptr++;
{
int32_t j=Gv_GetVarX(*insptr++);
VM_DoConditional((uint32_t)j < (uint32_t)*insptr);
}
continue;
case CON_IFVARBE:
insptr++;
{
int32_t j=Gv_GetVarX(*insptr++);
VM_DoConditional((uint32_t)j <= (uint32_t)*insptr);
}
continue;
case CON_IFRND:
VM_DoConditional(rnd(Gv_GetVarX(*(++insptr))));
continue;