mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-08 22:11:09 +00:00
d642c5b1b0
SVN r3194 (trunk)
812 lines
16 KiB
NASM
812 lines
16 KiB
NASM
; "Build Engine & Tools" Copyright (c) 1993-1997 Ken Silverman
|
||
; Ken Silverman's official web site: "http://www.advsys.net/ken"
|
||
; See the included license file "BUILDLIC.TXT" for license info.
|
||
; This file has been modified from Ken Silverman's original release
|
||
|
||
%include "valgrind.inc"
|
||
|
||
SECTION .data
|
||
|
||
%ifndef M_TARGET_LINUX
|
||
%define ylookup _ylookup
|
||
%define vince _vince
|
||
%define vplce _vplce
|
||
%define palookupoffse _palookupoffse
|
||
%define bufplce _bufplce
|
||
%define dc_iscale _dc_iscale
|
||
%define dc_colormap _dc_colormap
|
||
%define dc_count _dc_count
|
||
%define dc_dest _dc_dest
|
||
%define dc_source _dc_source
|
||
%define dc_texturefrac _dc_texturefrac
|
||
|
||
%define setupvlineasm _setupvlineasm
|
||
%define prevlineasm1 _prevlineasm1
|
||
%define vlineasm1 _vlineasm1
|
||
%define vlineasm4 _vlineasm4
|
||
|
||
%define setupmvlineasm _setupmvlineasm
|
||
%define mvlineasm1 _mvlineasm1
|
||
%define mvlineasm4 _mvlineasm4
|
||
|
||
%define R_SetupDrawSlabA _R_SetupDrawSlabA
|
||
%define R_DrawSlabA _R_DrawSlabA
|
||
%endif
|
||
|
||
EXTERN ylookup ; near
|
||
|
||
EXTERN vplce ; near
|
||
EXTERN vince ; near
|
||
EXTERN palookupoffse ; near
|
||
EXTERN bufplce ; near
|
||
|
||
EXTERN dc_iscale
|
||
EXTERN dc_colormap
|
||
EXTERN dc_count
|
||
EXTERN dc_dest
|
||
EXTERN dc_source
|
||
EXTERN dc_texturefrac
|
||
|
||
SECTION .text
|
||
|
||
ALIGN 16
|
||
GLOBAL setvlinebpl_
|
||
setvlinebpl_:
|
||
mov [fixchain1a+2], eax
|
||
mov [fixchain1b+2], eax
|
||
mov [fixchain2a+2], eax
|
||
mov [fixchain1m+2], eax
|
||
mov [fixchain2ma+2], eax
|
||
mov [fixchain2mb+2], eax
|
||
selfmod fixchain1a, fixchain2mb+6
|
||
|
||
setdrawslabbpl:
|
||
mov dword [voxbpl1+2], eax
|
||
mov dword [voxbpl2+2], eax
|
||
mov dword [voxbpl3+2], eax
|
||
mov dword [voxbpl4+2], eax
|
||
mov dword [voxbpl5+2], eax
|
||
mov dword [voxbpl6+2], eax
|
||
mov dword [voxbpl7+2], eax
|
||
mov dword [voxbpl8+2], eax
|
||
selfmod voxbpl1, voxpl8+6
|
||
ret
|
||
|
||
SECTION .data
|
||
|
||
lastslabcolormap:
|
||
dd 4
|
||
|
||
SECTION .text
|
||
|
||
GLOBAL R_SetupDrawSlabA
|
||
GLOBAL @R_SetupDrawSlabA@4
|
||
R_SetupDrawSlabA:
|
||
mov ecx, [esp+4]
|
||
@R_SetupDrawSlabA@4:
|
||
cmp [lastslabcolormap], ecx
|
||
je .done
|
||
mov [lastslabcolormap], ecx
|
||
mov dword [voxpal1+2], ecx
|
||
mov dword [voxpal2+2], ecx
|
||
mov dword [voxpal3+2], ecx
|
||
mov dword [voxpal4+2], ecx
|
||
mov dword [voxpal5+2], ecx
|
||
mov dword [voxpal6+2], ecx
|
||
mov dword [voxpal7+2], ecx
|
||
mov dword [voxpal8+2], ecx
|
||
.done ret
|
||
|
||
|
||
; pass it log2(texheight)
|
||
|
||
ALIGN 16
|
||
GLOBAL setupvlineasm
|
||
setupvlineasm:
|
||
mov ecx, [esp+4]
|
||
|
||
;First 2 lines for VLINEASM1, rest for VLINEASM4
|
||
mov byte [premach3a+2], cl
|
||
mov byte [mach3a+2], cl
|
||
|
||
mov byte [machvsh1+2], cl ;32-shy
|
||
mov byte [machvsh3+2], cl ;32-shy
|
||
mov byte [machvsh5+2], cl ;32-shy
|
||
mov byte [machvsh6+2], cl ;32-shy
|
||
mov ch, cl
|
||
sub ch, 16
|
||
mov byte [machvsh8+2], ch ;16-shy
|
||
neg cl
|
||
mov byte [machvsh7+2], cl ;shy
|
||
mov byte [machvsh9+2], cl ;shy
|
||
mov byte [machvsh10+2], cl ;shy
|
||
mov byte [machvsh11+2], cl ;shy
|
||
mov byte [machvsh12+2], cl ;shy
|
||
mov eax, 1
|
||
shl eax, cl
|
||
dec eax
|
||
mov dword [machvsh2+2], eax ;(1<<shy)-1
|
||
mov dword [machvsh4+2], eax ;(1<<shy)-1
|
||
selfmod premach3a, machvsh8+6
|
||
ret
|
||
|
||
%ifdef M_TARGET_MACHO
|
||
SECTION .text align=64
|
||
%else
|
||
SECTION .rtext progbits alloc exec write align=64
|
||
%endif
|
||
|
||
%ifdef M_TARGET_MACHO
|
||
GLOBAL _rtext_a_start
|
||
_rtext_a_start:
|
||
%endif
|
||
|
||
;eax = xscale
|
||
;ebx = palookupoffse
|
||
;ecx = # pixels to draw-1
|
||
;edx = texturefrac
|
||
;esi = texturecolumn
|
||
;edi = buffer pointer
|
||
|
||
ALIGN 16
|
||
GLOBAL prevlineasm1
|
||
prevlineasm1:
|
||
mov ecx, [dc_count]
|
||
cmp ecx, 1
|
||
ja vlineasm1
|
||
|
||
mov eax, [dc_iscale]
|
||
mov edx, [dc_texturefrac]
|
||
add eax, edx
|
||
mov ecx, [dc_source]
|
||
premach3a: shr edx, 32
|
||
push ebx
|
||
push edi
|
||
mov edi, [dc_colormap]
|
||
xor ebx, ebx
|
||
mov bl, byte [ecx+edx]
|
||
mov ecx, [dc_dest]
|
||
mov bl, byte [edi+ebx]
|
||
pop edi
|
||
mov byte [ecx], bl
|
||
pop ebx
|
||
ret
|
||
|
||
GLOBAL vlineasm1
|
||
ALIGN 16
|
||
vlineasm1:
|
||
push ebx
|
||
push edi
|
||
push esi
|
||
push ebp
|
||
mov ecx, [dc_count]
|
||
mov ebp, [dc_colormap]
|
||
mov edi, [dc_dest]
|
||
mov eax, [dc_iscale]
|
||
mov edx, [dc_texturefrac]
|
||
mov esi, [dc_source]
|
||
fixchain1a: sub edi, 320
|
||
nop
|
||
nop
|
||
nop
|
||
beginvline:
|
||
mov ebx, edx
|
||
mach3a: shr ebx, 32
|
||
fixchain1b: add edi, 320
|
||
mov bl, byte [esi+ebx]
|
||
add edx, eax
|
||
dec ecx
|
||
mov bl, byte [ebp+ebx]
|
||
mov byte [edi], bl
|
||
jnz short beginvline
|
||
pop ebp
|
||
pop esi
|
||
pop edi
|
||
pop ebx
|
||
mov eax, edx
|
||
ret
|
||
|
||
;eax: -------temp1-------
|
||
;ebx: -------temp2-------
|
||
;ecx: dat dat dat dat
|
||
;edx: ylo2 ylo4
|
||
;esi: yhi1 yhi2
|
||
;edi: ---videoplc/cnt----
|
||
;ebp: yhi3 yhi4
|
||
;esp:
|
||
ALIGN 16
|
||
GLOBAL vlineasm4
|
||
vlineasm4:
|
||
mov ecx, [dc_count]
|
||
push ebp
|
||
push ebx
|
||
push esi
|
||
push edi
|
||
mov edi, [dc_dest]
|
||
|
||
mov eax, dword [ylookup+ecx*4-4]
|
||
add eax, edi
|
||
mov dword [machvline4end+2], eax
|
||
sub edi, eax
|
||
|
||
mov eax, dword [bufplce+0]
|
||
mov ebx, dword [bufplce+4]
|
||
mov ecx, dword [bufplce+8]
|
||
mov edx, dword [bufplce+12]
|
||
mov dword [machvbuf1+2], ecx
|
||
mov dword [machvbuf2+2], edx
|
||
mov dword [machvbuf3+2], eax
|
||
mov dword [machvbuf4+2], ebx
|
||
|
||
mov eax, dword [palookupoffse+0]
|
||
mov ebx, dword [palookupoffse+4]
|
||
mov ecx, dword [palookupoffse+8]
|
||
mov edx, dword [palookupoffse+12]
|
||
mov dword [machvpal1+2], ecx
|
||
mov dword [machvpal2+2], edx
|
||
mov dword [machvpal3+2], eax
|
||
mov dword [machvpal4+2], ebx
|
||
|
||
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ä¿
|
||
;edx: <20>v3lo <20>v1lo <20>
|
||
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ä´
|
||
;esi: <20>v2hi v2lo <20> v3hi<68>
|
||
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ä´
|
||
;ebp: <20>v0hi v0lo <20> v1hi<68>
|
||
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
|
||
mov ebp, dword [vince+0]
|
||
mov ebx, dword [vince+4]
|
||
mov esi, dword [vince+8]
|
||
mov eax, dword [vince+12]
|
||
and esi, 0fffffe00h
|
||
and ebp, 0fffffe00h
|
||
machvsh9: rol eax, 88h ;sh
|
||
machvsh10: rol ebx, 88h ;sh
|
||
mov edx, eax
|
||
mov ecx, ebx
|
||
shr ecx, 16
|
||
and edx, 0ffff0000h
|
||
add edx, ecx
|
||
and eax, 000001ffh
|
||
and ebx, 000001ffh
|
||
add esi, eax
|
||
add ebp, ebx
|
||
;
|
||
mov eax, edx
|
||
and eax, 0ffff0000h
|
||
mov dword [machvinc1+2], eax
|
||
mov dword [machvinc2+2], esi
|
||
mov byte [machvinc3+2], dl
|
||
mov byte [machvinc4+2], dh
|
||
mov dword [machvinc5+2], ebp
|
||
|
||
mov ebp, dword [vplce+0]
|
||
mov ebx, dword [vplce+4]
|
||
mov esi, dword [vplce+8]
|
||
mov eax, dword [vplce+12]
|
||
and esi, 0fffffe00h
|
||
and ebp, 0fffffe00h
|
||
machvsh11: rol eax, 88h ;sh
|
||
machvsh12: rol ebx, 88h ;sh
|
||
mov edx, eax
|
||
mov ecx, ebx
|
||
shr ecx, 16
|
||
and edx, 0ffff0000h
|
||
add edx, ecx
|
||
and eax, 000001ffh
|
||
and ebx, 000001ffh
|
||
add esi, eax
|
||
add ebp, ebx
|
||
|
||
mov ecx, esi
|
||
selfmod beginvlineasm4, machvline4end+6
|
||
jmp short beginvlineasm4
|
||
ALIGN 16
|
||
beginvlineasm4:
|
||
machvsh1: shr ecx, 88h ;32-sh
|
||
mov ebx, esi
|
||
machvsh2: and ebx, 00000088h ;(1<<sh)-1
|
||
machvinc1: add edx, 88880000h
|
||
machvinc2: adc esi, 88888088h
|
||
machvbuf1: mov cl, byte [ecx+88888888h]
|
||
machvbuf2: mov bl, byte [ebx+88888888h]
|
||
mov eax, ebp
|
||
machvsh3: shr eax, 88h ;32-sh
|
||
machvpal1: mov cl, byte [ecx+88888888h]
|
||
machvpal2: mov ch, byte [ebx+88888888h]
|
||
mov ebx, ebp
|
||
shl ecx, 16
|
||
machvsh4: and ebx, 00000088h ;(1<<sh)-1
|
||
machvinc3: add dl, 88h
|
||
machvbuf3: mov al, byte [eax+88888888h]
|
||
machvinc4: adc dh, 88h
|
||
machvbuf4: mov bl, byte [ebx+88888888h]
|
||
machvinc5: adc ebp, 88888088h
|
||
machvpal3: mov cl, byte [eax+88888888h]
|
||
machvpal4: mov ch, byte [ebx+88888888h]
|
||
machvline4end: mov dword [edi+88888888h], ecx
|
||
fixchain2a: add edi, 88888888h
|
||
mov ecx, esi
|
||
jle short beginvlineasm4
|
||
|
||
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ä¿
|
||
;edx: <20>v3lo <20>v1lo <20>
|
||
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ä´
|
||
;esi: <20>v2hi v2lo <20> v3hi<68>
|
||
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ä´
|
||
;ebp: <20>v0hi v0lo <20> v1hi<68>
|
||
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
|
||
mov dword [vplce+8], esi
|
||
mov dword [vplce+0], ebp
|
||
;vplc2 = (esi<<(32-sh))+(edx>>sh)
|
||
;vplc3 = (ebp<<(32-sh))+((edx&65535)<<(16-sh))
|
||
machvsh5: shl esi, 88h ;32-sh
|
||
mov eax, edx
|
||
machvsh6: shl ebp, 88h ;32-sh
|
||
and edx, 0000ffffh
|
||
machvsh7: shr eax, 88h ;sh
|
||
add esi, eax
|
||
machvsh8: shl edx, 88h ;16-sh
|
||
add ebp, edx
|
||
mov dword [vplce+12], esi
|
||
mov dword [vplce+4], ebp
|
||
|
||
pop edi
|
||
pop esi
|
||
pop ebx
|
||
pop ebp
|
||
ret
|
||
|
||
;*************************************************************************
|
||
;************************* Masked Vertical Lines *************************
|
||
;*************************************************************************
|
||
|
||
; pass it log2(texheight)
|
||
|
||
ALIGN 16
|
||
GLOBAL setupmvlineasm
|
||
setupmvlineasm:
|
||
mov ecx, dword [esp+4]
|
||
mov byte [maskmach3a+2], cl
|
||
mov byte [machmv13+2], cl
|
||
|
||
mov byte [machmv14+2], cl
|
||
mov byte [machmv15+2], cl
|
||
mov byte [machmv16+2], cl
|
||
selfmod maskmach3a, machmv13+6
|
||
ret
|
||
|
||
ALIGN 16
|
||
GLOBAL mvlineasm1 ;Masked vline
|
||
mvlineasm1:
|
||
push ebx
|
||
push edi
|
||
push esi
|
||
push ebp
|
||
mov ecx, [dc_count]
|
||
mov ebp, [dc_colormap]
|
||
mov edi, [dc_dest]
|
||
mov eax, [dc_iscale]
|
||
mov edx, [dc_texturefrac]
|
||
mov esi, [dc_source]
|
||
beginmvline:
|
||
mov ebx, edx
|
||
maskmach3a: shr ebx, 32
|
||
movzx ebx, byte [esi+ebx]
|
||
cmp ebx, 0
|
||
je short skipmask1
|
||
maskmach3c: mov bl, byte [ebp+ebx]
|
||
mov [edi], bl
|
||
skipmask1: add edx, eax
|
||
fixchain1m: add edi, 320
|
||
dec ecx
|
||
jnz short beginmvline
|
||
|
||
pop ebp
|
||
pop esi
|
||
pop edi
|
||
pop ebx
|
||
mov eax, edx
|
||
ret
|
||
|
||
ALIGN 16
|
||
GLOBAL mvlineasm4
|
||
mvlineasm4:
|
||
push ebx
|
||
push esi
|
||
push edi
|
||
push ebp
|
||
|
||
mov ecx,[dc_count]
|
||
mov edi,[dc_dest]
|
||
|
||
mov eax, [bufplce+0]
|
||
mov ebx, [bufplce+4]
|
||
mov [machmv1+3], eax
|
||
mov [machmv4+3], ebx
|
||
mov eax, [bufplce+8]
|
||
mov ebx, [bufplce+12]
|
||
mov [machmv7+3], eax
|
||
mov [machmv10+3], ebx
|
||
|
||
mov eax, [palookupoffse]
|
||
mov ebx, [palookupoffse+4]
|
||
mov [machmv2+2], eax
|
||
mov [machmv5+2], ebx
|
||
mov eax, [palookupoffse+8]
|
||
mov ebx, [palookupoffse+12]
|
||
mov [machmv8+2], eax
|
||
mov [machmv11+2], ebx
|
||
|
||
mov eax, [vince] ;vince
|
||
mov ebx, [vince+4]
|
||
xor bl, bl
|
||
mov [machmv3+2], eax
|
||
mov [machmv6+2], ebx
|
||
mov eax, [vince+8]
|
||
mov ebx, [vince+12]
|
||
mov [machmv9+2], eax
|
||
mov [machmv12+2], ebx
|
||
|
||
inc ecx
|
||
push ecx
|
||
mov ecx, [vplce+0]
|
||
mov edx, [vplce+4]
|
||
mov esi, [vplce+8]
|
||
mov ebp, [vplce+12]
|
||
fixchain2ma: sub edi, 320
|
||
|
||
selfmod beginmvlineasm4, machmv2+6
|
||
jmp short beginmvlineasm4
|
||
ALIGN 16
|
||
beginmvlineasm4:
|
||
dec dword [esp]
|
||
jz near endmvlineasm4
|
||
|
||
mov eax, ebp
|
||
mov ebx, esi
|
||
machmv16: shr eax, 32
|
||
machmv12: add ebp, 0x88888888 ;vince[3]
|
||
machmv15: shr ebx, 32
|
||
machmv9: add esi, 0x88888888 ;vince[2]
|
||
machmv10: movzx eax, byte [eax+0x88888888];bufplce[3]
|
||
machmv7: movzx ebx, byte [ebx+0x88888888];bufplce[2]
|
||
cmp eax, 1
|
||
adc dl, dl
|
||
cmp ebx, 1
|
||
adc dl, dl
|
||
machmv8: mov bl, [ebx+0x88888888] ;palookupoffs[2]
|
||
machmv11: mov bh, [eax+0x88888888] ;palookupoffs[3]
|
||
|
||
mov eax, edx
|
||
machmv6: add edx, 0x88888888 ;vince[1]
|
||
machmv14: shr eax, 32
|
||
shl ebx, 16
|
||
machmv4: movzx eax, byte [eax+0x88888888];bufplce[1]
|
||
cmp eax, 1
|
||
adc dl, dl
|
||
machmv5: mov bh, [eax+0x88888888] ;palookupoffs[1]
|
||
|
||
mov eax, ecx
|
||
machmv3: add ecx, 0x88888888 ;vince[0]
|
||
machmv13: shr eax, 32
|
||
machmv1: movzx eax, byte [eax+0x88888888];bufplce[0]
|
||
cmp eax, 1
|
||
adc dl, dl
|
||
machmv2: mov bl, [eax+0x88888888] ;palookupoffs[0]
|
||
|
||
xor eax, eax
|
||
shl dl, 4
|
||
fixchain2mb: add edi, 320
|
||
mov al, dl
|
||
add eax, mvcase15
|
||
jmp eax ;16 byte cases
|
||
|
||
ALIGN 16
|
||
endmvlineasm4:
|
||
mov [vplce], ecx
|
||
mov [vplce+4], edx
|
||
mov [vplce+8], esi
|
||
mov [vplce+12], ebp
|
||
pop ecx
|
||
pop ebp
|
||
pop edi
|
||
pop esi
|
||
pop ebx
|
||
ret
|
||
|
||
;5,7,8,8,11,13,12,14,11,13,14,14,12,14,15,7
|
||
ALIGN 16
|
||
mvcase15: mov [edi], ebx
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase14: mov [edi+1], bh
|
||
shr ebx, 16
|
||
mov [edi+2], bx
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase13: mov [edi], bl
|
||
shr ebx, 16
|
||
mov [edi+2], bx
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase12: shr ebx, 16
|
||
mov [edi+2], bx
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase11: mov [edi], bx
|
||
shr ebx, 16
|
||
mov [edi+3], bh
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase10: mov [edi+1], bh
|
||
shr ebx, 16
|
||
mov [edi+3], bh
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase9: mov [edi], bl
|
||
shr ebx, 16
|
||
mov [edi+3], bh
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase8: shr ebx, 16
|
||
mov [edi+3], bh
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase7: mov [edi], bx
|
||
shr ebx, 16
|
||
mov [edi+2], bl
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase6: shr ebx, 8
|
||
mov [edi+1], bx
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase5: mov [edi], bl
|
||
shr ebx, 16
|
||
mov [edi+2], bl
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase4: shr ebx, 16
|
||
mov [edi+2], bl
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase3: mov [edi], bx
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase2: mov [edi+1], bh
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase1: mov [edi], bl
|
||
jmp beginmvlineasm4
|
||
ALIGN 16
|
||
mvcase0: jmp beginmvlineasm4
|
||
|
||
align 16
|
||
|
||
|
||
;*************************************************************************
|
||
;***************************** Voxel Slabs *******************************
|
||
;*************************************************************************
|
||
|
||
GLOBAL R_DrawSlabA
|
||
R_DrawSlabA:
|
||
push ebx
|
||
push ebp
|
||
push esi
|
||
push edi
|
||
|
||
mov eax, [esp+5*4+0]
|
||
mov ebx, [esp+5*4+4]
|
||
mov ecx, [esp+5*4+8]
|
||
mov edx, [esp+5*4+12]
|
||
mov esi, [esp+5*4+16]
|
||
mov edi, [esp+5*4+20]
|
||
|
||
cmp eax, 2
|
||
je voxbegdraw2
|
||
ja voxskip2
|
||
xor eax, eax
|
||
voxbegdraw1:
|
||
mov ebp, ebx
|
||
shr ebp, 16
|
||
add ebx, edx
|
||
dec ecx
|
||
mov al, byte [esi+ebp]
|
||
voxpal1: mov al, byte [eax+88888888h]
|
||
mov byte [edi], al
|
||
voxbpl1: lea edi, [edi+88888888h]
|
||
jnz voxbegdraw1
|
||
jmp voxskipslab5
|
||
|
||
voxbegdraw2:
|
||
mov ebp, ebx
|
||
shr ebp, 16
|
||
add ebx, edx
|
||
xor eax, eax
|
||
dec ecx
|
||
mov al, byte [esi+ebp]
|
||
voxpal2: mov al, byte [eax+88888888h]
|
||
mov ah, al
|
||
mov word [edi], ax
|
||
voxbpl2: lea edi, [edi+88888888h]
|
||
jnz voxbegdraw2
|
||
jmp voxskipslab5
|
||
|
||
voxskip2:
|
||
cmp eax, 4
|
||
jne voxskip4
|
||
xor eax, eax
|
||
voxbegdraw4:
|
||
mov ebp, ebx
|
||
add ebx, edx
|
||
shr ebp, 16
|
||
xor eax, eax
|
||
mov al, byte [esi+ebp]
|
||
voxpal3: mov al, byte [eax+88888888h]
|
||
mov ah, al
|
||
shl eax, 8
|
||
mov al, ah
|
||
shl eax, 8
|
||
mov al, ah
|
||
mov dword [edi], eax
|
||
voxbpl3: add edi, 88888888h
|
||
dec ecx
|
||
jnz voxbegdraw4
|
||
jmp voxskipslab5
|
||
|
||
voxskip4:
|
||
add eax, edi
|
||
|
||
test edi, 1
|
||
jz voxskipslab1
|
||
cmp edi, eax
|
||
je voxskipslab1
|
||
|
||
push eax
|
||
push ebx
|
||
push ecx
|
||
push edi
|
||
voxbegslab1:
|
||
mov ebp, ebx
|
||
add ebx, edx
|
||
shr ebp, 16
|
||
xor eax, eax
|
||
mov al, byte [esi+ebp]
|
||
voxpal4: mov al, byte [eax+88888888h]
|
||
mov byte [edi], al
|
||
voxbpl4: add edi, 88888888h
|
||
dec ecx
|
||
jnz voxbegslab1
|
||
pop edi
|
||
pop ecx
|
||
pop ebx
|
||
pop eax
|
||
inc edi
|
||
|
||
voxskipslab1:
|
||
push eax
|
||
test edi, 2
|
||
jz voxskipslab2
|
||
dec eax
|
||
cmp edi, eax
|
||
jge voxskipslab2
|
||
|
||
push ebx
|
||
push ecx
|
||
push edi
|
||
voxbegslab2:
|
||
mov ebp, ebx
|
||
add ebx, edx
|
||
shr ebp, 16
|
||
xor eax, eax
|
||
mov al, byte [esi+ebp]
|
||
voxpal5: mov al, byte [eax+88888888h]
|
||
mov ah, al
|
||
mov word [edi], ax
|
||
voxbpl5: add edi, 88888888h
|
||
dec ecx
|
||
jnz voxbegslab2
|
||
pop edi
|
||
pop ecx
|
||
pop ebx
|
||
add edi, 2
|
||
|
||
voxskipslab2:
|
||
mov eax, [esp]
|
||
|
||
sub eax, 3
|
||
cmp edi, eax
|
||
jge voxskipslab3
|
||
|
||
voxprebegslab3:
|
||
push ebx
|
||
push ecx
|
||
push edi
|
||
voxbegslab3:
|
||
mov ebp, ebx
|
||
add ebx, edx
|
||
shr ebp, 16
|
||
xor eax, eax
|
||
mov al, byte [esi+ebp]
|
||
voxpal6: mov al, byte [eax+88888888h]
|
||
mov ah, al
|
||
shl eax, 8
|
||
mov al, ah
|
||
shl eax, 8
|
||
mov al, ah
|
||
mov dword [edi], eax
|
||
voxbpl6: add edi, 88888888h
|
||
dec ecx
|
||
jnz voxbegslab3
|
||
pop edi
|
||
pop ecx
|
||
pop ebx
|
||
add edi, 4
|
||
|
||
mov eax, [esp]
|
||
|
||
sub eax, 3
|
||
cmp edi, eax
|
||
jl voxprebegslab3
|
||
|
||
voxskipslab3:
|
||
mov eax, [esp]
|
||
|
||
dec eax
|
||
cmp edi, eax
|
||
jge voxskipslab4
|
||
|
||
push ebx
|
||
push ecx
|
||
push edi
|
||
voxbegslab4:
|
||
mov ebp, ebx
|
||
add ebx, edx
|
||
shr ebp, 16
|
||
xor eax, eax
|
||
mov al, byte [esi+ebp]
|
||
voxpal7: mov al, byte [eax+88888888h]
|
||
mov ah, al
|
||
mov word [edi], ax
|
||
voxbpl7: add edi, 88888888h
|
||
dec ecx
|
||
jnz voxbegslab4
|
||
pop edi
|
||
pop ecx
|
||
pop ebx
|
||
add edi, 2
|
||
|
||
voxskipslab4:
|
||
pop eax
|
||
|
||
cmp edi, eax
|
||
je voxskipslab5
|
||
|
||
voxbegslab5:
|
||
mov ebp, ebx
|
||
add ebx, edx
|
||
shr ebp, 16
|
||
xor eax, eax
|
||
mov al, byte [esi+ebp]
|
||
voxpal8: mov al, byte [eax+88888888h]
|
||
mov byte [edi], al
|
||
voxbpl8: add edi, 88888888h
|
||
dec ecx
|
||
jnz voxbegslab5
|
||
|
||
voxskipslab5:
|
||
pop edi
|
||
pop esi
|
||
pop ebp
|
||
pop ebx
|
||
ret
|
||
|
||
align 16
|
||
|
||
%ifdef M_TARGET_MACHO
|
||
GLOBAL _rtext_a_end
|
||
_rtext_a_end:
|
||
%endif
|