mirror of
https://git.code.sf.net/p/quake/quakeforge-old
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214 lines
5.1 KiB
ArmAsm
214 lines
5.1 KiB
ArmAsm
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/*
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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 the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//
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// d_varsa.s
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//
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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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#if id386
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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 izi
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izi: .long 0
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.globl pbase, s, t, sfracf, tfracf, snext, tnext
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.globl spancountminus1, zi16stepu, sdivz16stepu, tdivz16stepu
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.globl zi8stepu, sdivz8stepu, tdivz8stepu, pz
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s: .long 0
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t: .long 0
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snext: .long 0
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tnext: .long 0
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sfracf: .long 0
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tfracf: .long 0
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pbase: .long 0
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zi8stepu: .long 0
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sdivz8stepu: .long 0
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tdivz8stepu: .long 0
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zi16stepu: .long 0
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sdivz16stepu: .long 0
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tdivz16stepu: .long 0
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spancountminus1: .long 0
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pz: .long 0
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.globl izistep
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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 reciprocal_table_16, entryvec_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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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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#ifndef NeXT
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.extern Entry2_16
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.extern Entry3_16
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.extern Entry4_16
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.extern Entry5_16
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.extern Entry6_16
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.extern Entry7_16
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.extern Entry8_16
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.extern Entry9_16
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.extern Entry10_16
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.extern Entry11_16
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.extern Entry12_16
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.extern Entry13_16
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.extern Entry14_16
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.extern Entry15_16
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.extern Entry16_16
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#endif
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entryvec_table_16: .long 0, Entry2_16, Entry3_16, Entry4_16
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.long Entry5_16, Entry6_16, Entry7_16, Entry8_16
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.long Entry9_16, Entry10_16, Entry11_16, Entry12_16
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.long Entry13_16, Entry14_16, Entry15_16, Entry16_16
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//-------------------------------------------------------
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// local variables for d_parta.s
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//-------------------------------------------------------
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.globl DP_Count, DP_u, DP_v, DP_32768, DP_Color, DP_Pix, DP_EntryTable
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DP_Count: .long 0
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DP_u: .long 0
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DP_v: .long 0
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DP_32768: .single 32768.0
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DP_Color: .long 0
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DP_Pix: .long 0
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#ifndef NeXT
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.extern DP_1x1
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.extern DP_2x2
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.extern DP_3x3
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.extern DP_4x4
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#endif
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DP_EntryTable: .long DP_1x1, DP_2x2, DP_3x3, 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 advancetable, sstep, tstep, pspantemp, counttemp, jumptemp
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advancetable: .long 0, 0
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sstep: .long 0
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tstep: .long 0
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pspantemp: .long 0
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counttemp: .long 0
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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 reciprocal_table, entryvec_table
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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 Entry2_8
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.extern Entry3_8
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.extern Entry4_8
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.extern Entry5_8
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.extern Entry6_8
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.extern Entry7_8
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.extern Entry8_8
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#endif
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entryvec_table: .long 0, Entry2_8, Entry3_8, Entry4_8
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.long Entry5_8, Entry6_8, Entry7_8, Entry8_8
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#ifndef NeXT
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.extern Spr8Entry2_8
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.extern Spr8Entry3_8
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.extern Spr8Entry4_8
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.extern Spr8Entry5_8
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.extern Spr8Entry6_8
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.extern Spr8Entry7_8
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.extern Spr8Entry8_8
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#endif
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.globl spr8entryvec_table
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spr8entryvec_table: .long 0, Spr8Entry2_8, Spr8Entry3_8, Spr8Entry4_8
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.long Spr8Entry5_8, Spr8Entry6_8, Spr8Entry7_8, Spr8Entry8_8
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#endif // id386
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