mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-12-24 02:30:46 +00:00
LunaCON: add -ftrapv, -fwrapv opts, providing trapping/wrapping arith semantics.
Currently only for multiplication. git-svn-id: https://svn.eduke32.com/eduke32@3949 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned
parent
75204d782a
commit
adbd6394fc
2 changed files with 179 additions and 144 deletions
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@ -19,6 +19,10 @@ local con_lang = require("con_lang")
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local byte = require("string").byte
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local setmetatable = setmetatable
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local band, bor = bit.band, bit.bor
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local rshift = bit.rshift
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local tobit = bit.tobit
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local assert = assert
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local error = error
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local ipairs = ipairs
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@ -182,7 +186,7 @@ local D = { true }
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local function krandand(mask)
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return bit.band(ffiC.krand(), mask)
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return band(ffiC.krand(), mask)
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end
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local function check_allnumbers(...)
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@ -325,7 +329,7 @@ local int16_st = ffi.typeof "struct { int16_t s; }"
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-- Get INT32_MIN for the following constant; passing 0x80000000 would be
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-- out of the range for an int32_t and thus undefined behavior!
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local SHOOT_HARDCODED_ZVEL = bit.tobit(0x80000000)
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local SHOOT_HARDCODED_ZVEL = tobit(0x80000000)
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function _shoot(i, tilenum, zvel)
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check_sprite_idx(i)
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@ -337,19 +341,19 @@ function _shoot(i, tilenum, zvel)
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return CF.A_ShootWithZvel(i, tilenum, zvel)
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end
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local BADGUY_MASK = bit.bor(con_lang.SFLAG.SFLAG_HARDCODED_BADGUY, con_lang.SFLAG.SFLAG_BADGUY)
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local BADGUY_MASK = bor(con_lang.SFLAG.SFLAG_HARDCODED_BADGUY, con_lang.SFLAG.SFLAG_BADGUY)
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function isenemytile(tilenum)
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return (bit.band(ffiC.g_tile[tilenum]._flags, BADGUY_MASK)~=0)
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return (band(ffiC.g_tile[tilenum]._flags, BADGUY_MASK)~=0)
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end
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-- The 'rotatesprite' wrapper used by the CON commands.
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function _rotspr(x, y, zoom, ang, tilenum, shade, pal, orientation,
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alpha, cx1, cy1, cx2, cy2)
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check_tile_idx(tilenum)
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orientation = bit.band(orientation, 4095) -- ROTATESPRITE_MAX-1
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orientation = band(orientation, 4095) -- ROTATESPRITE_MAX-1
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if (bit.band(orientation, 2048) == 0) then -- ROTATESPRITE_FULL16
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if (band(orientation, 2048) == 0) then -- ROTATESPRITE_FULL16
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x = 65536*x
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y = 65536*y
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end
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@ -363,7 +367,7 @@ function _rotspr(x, y, zoom, ang, tilenum, shade, pal, orientation,
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error(format("invalid coordinates (%.03f, %.03f)", x, y), 2)
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end
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ffiC.rotatesprite_(x, y, zoom, ang, tilenum, shade, pal, bit.bor(2,orientation),
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ffiC.rotatesprite_(x, y, zoom, ang, tilenum, shade, pal, bor(2,orientation),
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alpha, cx1, cy1, cx2, cy2)
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end
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@ -372,7 +376,7 @@ function rotatesprite(x, y, zoom, ang, tilenum, shade, pal, orientation,
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alpha, cx1, cy1, cx2, cy2)
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-- Disallow <<16 coordinates from Lunatic. They only unnecessarily increase
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-- complexity; you already have more precision in the FP number fraction.
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if (bit.band(orientation, 2048) ~= 0) then
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if (band(orientation, 2048) ~= 0) then
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error('left-shift-by-16 coordinates forbidden', 2)
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end
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@ -402,13 +406,11 @@ function _gettimedate()
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return v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7]
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end
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local rshift = bit.rshift
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function rnd(x)
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return (rshift(ffiC.krand(), 8) >= (255-x))
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end
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-- Legacy operators
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--- Legacy operators ---
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function _rand(x)
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return rshift(ffiC.krand()*(x+1), 16)
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@ -418,19 +420,40 @@ function _displayrand(x)
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return rshift(math.random(0, 32767)*(x+1), 15)
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end
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function _div(a,b)
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if (b==0) then
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error("divide by zero", 2)
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end
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-- NOTE: don't confuse with math.modf!
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return (a - math.fmod(a,b))/b
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end
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do
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-- Arithmetic operations --
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local INT32_MIN = tobit(0x80000000)
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local INT32_MAX = tobit(0x7fffffff)
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function _mod(a,b)
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if (b==0) then
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error("mod by zero", 2)
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-- Trapping multiplication.
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function _mulTR(a,b)
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local c = a*b
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if (not (c >= INT32_MIN and c <= INT32_MAX)) then
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error("overflow in multiplication", 2)
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end
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return c
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end
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-- Wrapping multiplication.
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function _mulWR(a,b)
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-- XXX: problematic if a*b in an infinity or NaN.
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return tobit(a*b)
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end
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function _div(a,b)
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if (b==0) then
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error("divide by zero", 2)
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end
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-- NOTE: don't confuse with math.modf!
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return (a - math.fmod(a,b))/b
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end
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function _mod(a,b)
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if (b==0) then
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error("mod by zero", 2)
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end
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return (math.fmod(a,b))
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end
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return (math.fmod(a,b))
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end
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-- Sect_ToggleInterpolation() clone
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@ -860,7 +883,7 @@ local function text_check_common(tilenum, orientation)
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error("invalid base tile number "..tilenum, 3)
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end
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return bit.band(orientation, 4095) -- ROTATESPRITE_MAX-1
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return band(orientation, 4095) -- ROTATESPRITE_MAX-1
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end
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function _gametext(tilenum, x, y, qnum, shade, pal, orientation,
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@ -1076,7 +1099,7 @@ function _addinventory(ps, inv, amount, i)
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if (inv == ffiC.GET_ACCESS) then
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local pal = sprite[i].pal
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if (PALBITS[pal]) then
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ps.got_access = bit.bor(ps.got_access, PALBITS[pal])
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ps.got_access = bor(ps.got_access, PALBITS[pal])
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end
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else
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if (ICONS[inv]) then
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@ -1097,7 +1120,7 @@ function _checkpinventory(ps, inv, amount, i)
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return ps.inv_amount[inv] ~= ps.max_shield_amount
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elseif (inv==ffiC.GET_ACCESS) then
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local palbit = PALBITS[sprite[i].pal]
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return palbit and (bit.band(ps.got_access, palbit)~=0)
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return palbit and (band(ps.got_access, palbit)~=0)
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else
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return ps.inv_amount[inv] ~= amount
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end
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@ -1161,7 +1184,7 @@ function _addphealth(ps, aci, hlthadd)
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j = math.max(j, 0)
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if (hlthadd > 0) then
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local qmaxhlth = bit.rshift(ps.max_player_health, 2)
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local qmaxhlth = rshift(ps.max_player_health, 2)
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if (j-hlthadd < qmaxhlth and j >= qmaxhlth) then
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-- XXX: DUKE_GOTHEALTHATLOW
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_sound(aci, 229)
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@ -1221,9 +1244,9 @@ function _operate(spritenum)
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if (tag.sector >= 0) then
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local sect = sector[tag.sector]
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local lotag = sect.lotag
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if (NEAROP[bit.band(lotag, 0xff)]) then
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if (NEAROP[band(lotag, 0xff)]) then
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if (lotag==23 or sect.floorz==sect.ceilingz) then
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if (bit.band(lotag, 32768+16384) == 0) then
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if (band(lotag, 32768+16384) == 0) then
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for j in spritesofsect(tag.sector) do
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if (ispic(sprite[j].picnum, "ACTIVATOR")) then
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return
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@ -1300,7 +1323,7 @@ end
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-- "otherspr" is either player or holoduke sprite
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local function A_FurthestVisiblePoint(aci, otherspr)
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if (bit.band(actor[aci]:get_count(), 63) ~= 0) then
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if (band(actor[aci]:get_count(), 63) ~= 0) then
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return
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end
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@ -1496,8 +1519,8 @@ end
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-- G_GetAngleDelta(a1, a2)
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function _angdiff(a1, a2)
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a1 = bit.band(a1, 2047)
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a2 = bit.band(a2, 2047)
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a1 = band(a1, 2047)
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a2 = band(a2, 2047)
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-- a1 and a2 are in [0, 2047]
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if (abs(a2-a1) < 1024) then
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return abs(a2-a1)
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@ -1535,7 +1558,6 @@ function _ifp(flags, pli, aci)
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local l = flags
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local ps = player[pli]
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local vel = sprite[ps.i].xvel
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local band = bit.band
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if (band(l,8)~=0 and ps.on_ground and holdskey(pli, "CROUCH")) then
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return true
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@ -1591,7 +1613,7 @@ function _checkspace(sectnum, floorp)
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local sect = sector[sectnum]
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local picnum = floorp and sect.floorpicnum or sect.ceilingpicnum
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local stat = floorp and sect.floorstat or sect.ceilingstat
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return bit.band(stat,1)~=0 and sect.ceilingpal == 0 and
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return band(stat,1)~=0 and sect.ceilingpal == 0 and
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(ispic(picnum, "MOONSKY1") or ispic(picnum, "BIGORBIT1"))
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end
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@ -1745,7 +1767,7 @@ function _startlevel(volume, level)
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ffiC.ud.display_bonus_screen = 0
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-- TODO_MP
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player[0].gm = bit.bor(player[0].gm, 0x00000008) -- MODE_EOL
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player[0].gm = bor(player[0].gm, 0x00000008) -- MODE_EOL
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end
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function _setaspect(viewingrange, yxaspect)
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@ -124,10 +124,109 @@ local g_warn = { ["not-redefined"]=true, ["bad-identifier"]=false,
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-- Code generation and output options.
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local g_cgopt = { ["no"]=false, ["debug-lineinfo"]=false, ["gendir"]=nil,
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["cache-sap"]=false, ["error-nostate"]=true,
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["playervar"]=true, }
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["playervar"]=true, ["trapv"]=false, ["wrapv"]=false, }
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local function csapp() return g_cgopt["cache-sap"] end
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local function handle_cmdline_arg(str)
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if (str:sub(1,1)=="-") then
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if (#str == 1) then
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printf("Warning: input from stdin not supported")
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else
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local ok = false
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local kind = str:sub(2,2)
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-- -W(no-)*: warnings
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if (kind=="W" and #str >= 3) then
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local val = true
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local warnstr = str:sub(3)
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if (warnstr == "all") then
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-- Enable all warnings.
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for wopt in pairs(g_warn) do
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g_warn[wopt] = true
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end
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ok = true
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else
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-- Enable or disable a particular warning.
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if (warnstr:sub(1,3)=="no-") then
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val = false
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warnstr = warnstr:sub(4)
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end
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if (type(g_warn[warnstr])=="boolean") then
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g_warn[warnstr] = val
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ok = true
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end
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end
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-- -fno* special handling
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elseif (str:sub(2)=="fno") then
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-- Disable printing code entirely.
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g_cgopt["no"] = true
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ok = true
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elseif (str:sub(2)=="fno=onlycheck") then
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-- Disable printing code, only do syntax check of gen'd code.
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g_cgopt["no"] = "onlycheck"
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ok = true
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-- -fgendir=<directory>: specify directory for generated code
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elseif (str:sub(2,9)=="fgendir=" and #str >= 10) then
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g_cgopt["gendir"] = str:sub(10)
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ok = true
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-- -f(no-)*: code generation options
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elseif (kind=="f" and #str >= 3) then
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local val = true
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local cgstr = str:sub(3)
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if (cgstr:sub(1,3)=="no-") then
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val = false
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cgstr = cgstr:sub(4)
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end
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if (type(g_cgopt[cgstr])=="boolean") then
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g_cgopt[cgstr] = val
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ok = true
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end
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-- -I<directory>: default search directory (only ONCE, not search path)
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elseif (kind=="I" and #str >= 3) then
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g_defaultDir = str:sub(3)
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ok = true
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end
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if (not ffi and not ok) then
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printf("Warning: Unrecognized option %s", str)
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end
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end
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return true
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end
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end
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-- Handle command line arguments. Has to happen before pattern construction,
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-- because some of them depend on codegen options (specifically, -ftrapv,
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-- -fwrapv).
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if (string.dump) then
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-- running stand-alone
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local i = 1
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while (arg[i]) do
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if (handle_cmdline_arg(arg[i])) then
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table.remove(arg, i) -- remove processed cmdline arg
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else
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i = i+1
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end
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end
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else
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-- running from EDuke32
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local i=0
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while (ffiC.g_argv[i] ~= nil) do
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handle_cmdline_arg(ffi.string(ffiC.g_argv[i]))
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i = i+1
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end
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end
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-- Stack with *true* on top if the innermost block is a "whilevar*n".
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local g_isWhile = {}
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-- Sequence number of 'while' statements, used to implement CON "break" inside
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@ -199,6 +298,7 @@ local function new_initial_codetab()
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"local print, printf = print, printf",
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-- Cache a couple of often-used functions.
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"local _div, _mod, _mulTR, _mulWR = _con._div, _con._mod, _con._mulTR, _con._mulWR",
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"local _band, _bor, _bxor = _bit.band, _bit.bor, _bit.bxor",
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"local _lsh, _rsh, _arsh = _bit.lshift, _bit.rshift, _bit.arshift",
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@ -1616,20 +1716,25 @@ local Op = {}
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Op.var = cmd(W,D)
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Op.varvar = cmd(W,R)
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function Op.varf(op)
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if (#op <= 2) then
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return Op.var / ("%1=%1"..op.."%2")
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function Op.var_common(thecmd, defaultop, trapop, wrapop)
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local theop =
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g_cgopt["trapv"] and trapop or
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g_cgopt["wrapv"] and wrapop or
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assert(defaultop)
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if (#theop <= 2) then
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return thecmd / ("%1=%1"..theop.."%2")
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else
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return Op.var / ("%1="..op.."(%1,%2)")
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return thecmd / ("%1="..theop.."(%1,%2)")
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end
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end
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function Op.varvarf(op)
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if (#op <= 2) then
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return Op.varvar / ("%1=%1"..op.."%2")
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else
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return Op.varvar / ("%1="..op.."(%1,%2)")
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end
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function Op.varf(...)
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return Op.var_common(Op.var, ...)
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end
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function Op.varvarf(...)
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return Op.var_common(Op.varvar, ...)
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end
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-- Allow nesting... stuff like
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@ -2085,9 +2190,9 @@ local Cinner = {
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-- NOTE the space after the minus sign so that e.g. "subvar x -1" won't get
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-- translated to "x=x--1" (-- being the Lua line comment start).
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subvarvar = Op.varvarf "- ",
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mulvarvar = Op.varvarf "*",
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divvarvar = Op.varvarf "_con._div",
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modvarvar = Op.varvarf "_con._mod",
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mulvarvar = Op.varvarf("*", "_mulTR", "_mulWR"),
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divvarvar = Op.varvarf "_div",
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modvarvar = Op.varvarf "_mod",
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andvarvar = Op.varvarf "_band",
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orvarvar = Op.varvarf "_bor",
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xorvarvar = Op.varvarf "_bxor",
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@ -2096,9 +2201,9 @@ local Cinner = {
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setvar = Op.var / "%1=%2",
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addvar = Op.varf "+",
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subvar = Op.varf "- ",
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mulvar = Op.varf "*",
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divvar = Op.varf "_con._div",
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modvar = Op.varf "_con._mod",
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mulvar = Op.varf("*", "_mulTR", "_mulWR"),
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divvar = Op.varf "_div",
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modvar = Op.varf "_mod",
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andvar = Op.varf "_band",
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orvar = Op.varf "_bor",
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xorvar = Op.varf "_bxor",
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@ -3474,83 +3579,6 @@ function parse(contents) -- local
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g_newlineidxs = newlineidxs
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end
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local function handle_cmdline_arg(str)
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if (str:sub(1,1)=="-") then
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if (#str == 1) then
|
||||
printf("Warning: input from stdin not supported")
|
||||
else
|
||||
local ok = false
|
||||
local kind = str:sub(2,2)
|
||||
|
||||
-- -W(no-)*: warnings
|
||||
if (kind=="W" and #str >= 3) then
|
||||
local val = true
|
||||
local warnstr = str:sub(3)
|
||||
|
||||
if (warnstr == "all") then
|
||||
-- Enable all warnings.
|
||||
for wopt in pairs(g_warn) do
|
||||
g_warn[wopt] = true
|
||||
end
|
||||
ok = true
|
||||
else
|
||||
-- Enable or disable a particular warning.
|
||||
if (warnstr:sub(1,3)=="no-") then
|
||||
val = false
|
||||
warnstr = warnstr:sub(4)
|
||||
end
|
||||
|
||||
if (type(g_warn[warnstr])=="boolean") then
|
||||
g_warn[warnstr] = val
|
||||
ok = true
|
||||
end
|
||||
end
|
||||
|
||||
-- -fno* special handling
|
||||
elseif (str:sub(2)=="fno") then
|
||||
-- Disable printing code entirely.
|
||||
g_cgopt["no"] = true
|
||||
ok = true
|
||||
elseif (str:sub(2)=="fno=onlycheck") then
|
||||
-- Disable printing code, only do syntax check of gen'd code.
|
||||
g_cgopt["no"] = "onlycheck"
|
||||
ok = true
|
||||
|
||||
-- -fgendir=<directory>: specify directory for generated code
|
||||
elseif (str:sub(2,9)=="fgendir=" and #str >= 10) then
|
||||
g_cgopt["gendir"] = str:sub(10)
|
||||
ok = true
|
||||
|
||||
-- -f(no-)*: code generation options
|
||||
elseif (kind=="f" and #str >= 3) then
|
||||
local val = true
|
||||
local cgstr = str:sub(3)
|
||||
|
||||
if (cgstr:sub(1,3)=="no-") then
|
||||
val = false
|
||||
cgstr = cgstr:sub(4)
|
||||
end
|
||||
|
||||
if (type(g_cgopt[cgstr])=="boolean") then
|
||||
g_cgopt[cgstr] = val
|
||||
ok = true
|
||||
end
|
||||
|
||||
-- -I<directory>: default search directory (only ONCE, not search path)
|
||||
elseif (kind=="I" and #str >= 3) then
|
||||
g_defaultDir = str:sub(3)
|
||||
ok = true
|
||||
end
|
||||
|
||||
if (not ffi and not ok) then
|
||||
printf("Warning: Unrecognized option %s", str)
|
||||
end
|
||||
end
|
||||
|
||||
return true
|
||||
end
|
||||
end
|
||||
|
||||
local function reset_all()
|
||||
reset_labels()
|
||||
reset_gamedata()
|
||||
|
|
@ -3568,16 +3596,6 @@ if (string.dump) then
|
|||
-- running stand-alone
|
||||
local io = require("io")
|
||||
|
||||
-- Handle command-line arguments and remove those that have been processed.
|
||||
local i = 1
|
||||
while (arg[i]) do
|
||||
if (handle_cmdline_arg(arg[i])) then
|
||||
table.remove(arg, i)
|
||||
else
|
||||
i = i+1
|
||||
end
|
||||
end
|
||||
|
||||
local function compile(filename)
|
||||
reset_all()
|
||||
|
||||
|
|
@ -3654,13 +3672,8 @@ if (string.dump) then
|
|||
end
|
||||
end
|
||||
else
|
||||
local i=0
|
||||
while (ffiC.g_argv[i] ~= nil) do
|
||||
handle_cmdline_arg(ffi.string(ffiC.g_argv[i]))
|
||||
i = i+1
|
||||
end
|
||||
|
||||
-- running from EDuke32
|
||||
|
||||
function compile(filenames)
|
||||
-- TODO: pathsearchmode=1 set in G_CompileScripts
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue