mirror of
https://git.code.sf.net/p/quake/quakeforge
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881add2c51
Prevents GCC from assuming an executable stack is needed. Signed-off-by: Ionen Wolkens <ionen@gentoo.org>
208 lines
5.1 KiB
ArmAsm
208 lines
5.1 KiB
ArmAsm
/*
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d_varsa.S
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(description)
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "asm_i386.h"
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#include "quakeasm.h"
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#include "asm_draw.h"
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#include "d_ifacea.h"
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#ifdef PIC
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#undef USE_INTEL_ASM //XXX asm pic hack
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#endif
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#ifdef USE_INTEL_ASM
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.data
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//-------------------------------------------------------
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// global refresh variables
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//-------------------------------------------------------
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// FIXME: put all refresh variables into one contiguous block. Make into one
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// big structure, like cl or sv?
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.align 4
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.globl C(d_sdivzstepu)
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.globl C(d_tdivzstepu)
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.globl C(d_zistepu)
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.globl C(d_sdivzstepv)
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.globl C(d_tdivzstepv)
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.globl C(d_zistepv)
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.globl C(d_sdivzorigin)
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.globl C(d_tdivzorigin)
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.globl C(d_ziorigin)
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C(d_sdivzstepu): .single 0
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C(d_tdivzstepu): .single 0
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C(d_zistepu): .single 0
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C(d_sdivzstepv): .single 0
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C(d_tdivzstepv): .single 0
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C(d_zistepv): .single 0
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C(d_sdivzorigin): .single 0
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C(d_tdivzorigin): .single 0
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C(d_ziorigin): .single 0
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.globl C(sadjust)
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.globl C(tadjust)
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.globl C(bbextents)
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.globl C(bbextentt)
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C(sadjust): .long 0
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C(tadjust): .long 0
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C(bbextents): .long 0
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C(bbextentt): .long 0
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.globl C(cacheblock)
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.globl C(d_viewbuffer)
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.globl C(cachewidth)
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.globl C(d_pzbuffer)
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.globl C(d_zrowbytes)
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.globl C(d_zwidth)
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C(cacheblock): .long 0
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C(cachewidth): .long 0
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C(d_viewbuffer): .long 0
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C(d_pzbuffer): .long 0
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C(d_zrowbytes): .long 0
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C(d_zwidth): .long 0
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//-------------------------------------------------------
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// ASM-only variables
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//-------------------------------------------------------
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.globl C(izi)
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C(izi): .long 0
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.globl C(pbase), C(s), C(t), C(sfracf), C(tfracf), C(snext), C(tnext)
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.globl C(spancountminus1), C(zi16stepu), C(sdivz16stepu), C(tdivz16stepu)
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.globl C(zi8stepu), C(sdivz8stepu), C(tdivz8stepu), C(pz)
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C(s): .long 0
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C(t): .long 0
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C(snext): .long 0
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C(tnext): .long 0
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C(sfracf): .long 0
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C(tfracf): .long 0
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C(pbase): .long 0
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C(zi8stepu): .long 0
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C(sdivz8stepu): .long 0
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C(tdivz8stepu): .long 0
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C(zi16stepu): .long 0
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C(sdivz16stepu): .long 0
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C(tdivz16stepu): .long 0
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C(spancountminus1): .long 0
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C(pz): .long 0
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.globl C(izistep)
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C(izistep): .long 0
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//-------------------------------------------------------
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// local variables for d_draw16.s
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//-------------------------------------------------------
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.globl C(reciprocal_table_16)
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// 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9, 1/10, 1/11, 1/12, 1/13,
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// 1/14, and 1/15 in 0.32 form
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C(reciprocal_table_16): .long 0x40000000, 0x2aaaaaaa, 0x20000000
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.long 0x19999999, 0x15555555, 0x12492492
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.long 0x10000000, 0xe38e38e, 0xccccccc, 0xba2e8ba
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.long 0xaaaaaaa, 0x9d89d89, 0x9249249, 0x8888888
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//-------------------------------------------------------
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// local variables for d_parta.s
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//-------------------------------------------------------
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.globl C(DP_Count), C(DP_u), C(DP_v), C(DP_32768), C(DP_Color)
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.globl C(DP_Pix), C(DP_EntryTable)
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C(DP_Count): .long 0
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C(DP_u): .long 0
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C(DP_v): .long 0
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C(DP_32768): .single 32768.0
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C(DP_Color): .long 0
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C(DP_Pix): .long 0
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#ifndef NeXT
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.extern C(DP_1x1)
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.extern C(DP_2x2)
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.extern C(DP_3x3)
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.extern C(DP_4x4)
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#endif
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C(DP_EntryTable): .long C(DP_1x1), C(DP_2x2), C(DP_3x3), C(DP_4x4)
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//
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// advancetable is 8 bytes, but points to the middle of that range so negative
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// offsets will work
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//
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.globl C(advancetable), C(sstep), C(tstep), C(pspantemp)
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.globl C(counttemp), C(jumptemp)
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C(advancetable): .long 0, 0
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C(sstep): .long 0
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C(tstep): .long 0
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C(pspantemp): .long 0
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C(counttemp): .long 0
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C(jumptemp): .long 0
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// 1/2, 1/3, 1/4, 1/5, 1/6, and 1/7 in 0.32 form
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.globl C(reciprocal_table), C(entryvec_table)
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C(reciprocal_table): .long 0x40000000, 0x2aaaaaaa, 0x20000000
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.long 0x19999999, 0x15555555, 0x12492492
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#ifndef NeXT
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.extern C(Entry2_8)
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.extern C(Entry3_8)
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.extern C(Entry4_8)
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.extern C(Entry5_8)
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.extern C(Entry6_8)
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.extern C(Entry7_8)
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.extern C(Entry8_8)
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#endif
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C(entryvec_table): .long 0, C(Entry2_8), C(Entry3_8), C(Entry4_8)
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.long C(Entry5_8), C(Entry6_8), C(Entry7_8), C(Entry8_8)
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#ifndef NeXT
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.extern C(Spr8Entry2_8)
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.extern C(Spr8Entry3_8)
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.extern C(Spr8Entry4_8)
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.extern C(Spr8Entry5_8)
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.extern C(Spr8Entry6_8)
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.extern C(Spr8Entry7_8)
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.extern C(Spr8Entry8_8)
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#endif
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.globl C(spr8entryvec_table)
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C(spr8entryvec_table): .long 0, C(Spr8Entry2_8), C(Spr8Entry3_8), C(Spr8Entry4_8)
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.long C(Spr8Entry5_8), C(Spr8Entry6_8), C(Spr8Entry7_8), C(Spr8Entry8_8)
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#endif // USE_INTEL_ASM
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#if defined(__linux__) && defined(__ELF__)
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.section .note.GNU-stack,"",%progbits
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#endif
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