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quakeforge/libs/video/renderer/sw/sw_rvarsa.S

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initial checkin of most recent newtree and nuq(?) source
2001-02-19 21:15:25 +00:00
/*
r_varsa.S
(description)
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
include/QF header cleanup. including config.h (or any file from include) is a nono because headers in include/QF get installed, but include don't and thus would break quakeforge-dev.
2001-05-31 05:33:13 +00:00
#include "asm_i386.h"
initial checkin of most recent newtree and nuq(?) source
2001-02-19 21:15:25 +00:00
#include "quakeasm.h"
#include "asm_draw.h"
#include "d_ifacea.h"
Fix the 32-bit x86 build of the software renderer. I really need to remove the sledge-hammer approach, but this at least gets QF working out-of-the-box on 32-bit x86 systems.
2012-04-28 04:02:36 +00:00
#ifdef PIC
# undef USE_INTEL_ASM //XXX asm pic hack
#endif
initial checkin of most recent newtree and nuq(?) source
2001-02-19 21:15:25 +00:00
#ifdef USE_INTEL_ASM
.data
//-------------------------------------------------------
// ASM-only variables
//-------------------------------------------------------
Fix asm ilnking in mingw. It seems that recent binutils/libtool doesn't like exporting symbols that don't begin with a _.
2011-09-10 08:49:14 +00:00
.globl C(float_1), C(float_particle_z_clip), C(float_point5)
.globl C(float_minus_1), C(float_0)
C(float_0): .single 0.0
C(float_1): .single 1.0
C(float_minus_1): .single -1.0
C(float_particle_z_clip): .single PARTICLE_Z_CLIP
C(float_point5): .single 0.5
.globl C(fp_16), C(fp_64k), C(fp_1m), C(fp_64kx64k)
.globl C(fp_1m_minus_1)
.globl C(fp_8)
C(fp_1m): .single 1048576.0
C(fp_1m_minus_1): .single 1048575.0
C(fp_64k): .single 65536.0
C(fp_8): .single 8.0
C(fp_16): .single 16.0
C(fp_64kx64k): .long 0x4f000000 // (float)0x8000*0x10000
.globl C(FloatZero), C(Float2ToThe31nd), C(FloatMinus2ToThe31nd)
C(FloatZero): .long 0
C(Float2ToThe31nd): .long 0x4f000000
C(FloatMinus2ToThe31nd): .long 0xcf000000
.globl C(r_ceil_cw), C(r_single_cw)
C(r_ceil_cw): .long 0
C(r_single_cw): .long 0
well, that's one way to confuse anybody fixes the floating point exception
2002-06-03 07:23:41 +00:00
initial checkin of most recent newtree and nuq(?) source
2001-02-19 21:15:25 +00:00
.globl C(r_bmodelactive)
whitespace
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C(r_bmodelactive): .long 0
initial checkin of most recent newtree and nuq(?) source
2001-02-19 21:15:25 +00:00
[sw] Fix some 32-bit assembly issues I'm not sure that the mismatch between refdef_t and the assembly defines was a problem (many fields unused), but the main problem was due to execute permission on the pages: one chunk of asm was in the data section, and the patched code was not marked as being executable (due to such a thing not existing when quake was written).
2021-04-02 13:17:32 +00:00
.text
well, that's one way to confuse anybody fixes the floating point exception
2002-06-03 07:23:41 +00:00
.global C(R_InitVars)
C(R_InitVars):
Fix asm ilnking in mingw. It seems that recent binutils/libtool doesn't like exporting symbols that don't begin with a _.
2011-09-10 08:49:14 +00:00
movl C(ceil_cw), %eax
movl C(single_cw), %edx
movl %eax, C(r_ceil_cw)
movl %edx, C(r_single_cw)
well, that's one way to confuse anybody fixes the floating point exception
2002-06-03 07:23:41 +00:00
ret
initial checkin of most recent newtree and nuq(?) source
2001-02-19 21:15:25 +00:00
#endif // USE_INTEL_ASM
Add GNU-stack notes to assembly files Prevents GCC from assuming an executable stack is needed. Signed-off-by: Ionen Wolkens <ionen@gentoo.org>
2021-06-13 14:12:03 +00:00
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#endif