644 lines
14 KiB
PHP
644 lines
14 KiB
PHP
|
;-procedure draws smooth shaded lines (I mean interpolation 24 bit--
|
||
|
|
;-color), with z coord interpolation--------------------------------
|
||
|
|
;-author: Maciej Guba (www.macgub.hekko.pl)-------------------------
|
||
|
|
;-in : -------------------------------------------------------------
|
||
|
|
;----- edi - pointer to screen buffer ------------------------------
|
||
|
|
;----- esi - pointer to Z buffer -----------------------------------
|
||
|
|
;------ constans : SIZE_X, SIZE_Y - screen width and height---------
|
||
|
|
;----------------- ROUND - fixed point shift------------------------
|
||
|
|
;------ other parameters via stack----------------------------------
|
||
|
|
smooth_line:
|
||
|
|
.x1 equ ebp+4
|
||
|
|
.y1 equ ebp+6
|
||
|
|
.z1 equ ebp+8
|
||
|
|
.r1 equ ebp+10
|
||
|
|
.g1 equ ebp+12
|
||
|
|
.b1 equ ebp+14
|
||
|
|
.x2 equ ebp+16
|
||
|
|
.y2 equ ebp+18
|
||
|
|
.z2 equ ebp+20
|
||
|
|
.r2 equ ebp+22
|
||
|
|
.g2 equ ebp+24
|
||
|
|
.b2 equ ebp+26
|
||
|
|
|
||
|
|
|
||
|
|
.line_lenght equ ebp-2
|
||
|
|
.delta equ ebp-6
|
||
|
|
.delta_x equ ebp-10
|
||
|
|
.delta_y equ ebp-14
|
||
|
|
.dr equ ebp-18
|
||
|
|
.dg equ ebp-22
|
||
|
|
.db equ ebp-26
|
||
|
|
.dz equ ebp-30
|
||
|
|
.cr equ ebp-34
|
||
|
|
.cg equ ebp-38
|
||
|
|
.cb equ ebp-42
|
||
|
|
.cz equ ebp-46
|
||
|
|
|
||
|
|
;.line_lenght equ ebp-48
|
||
|
|
.screen equ ebp-52
|
||
|
|
.zbuffer equ ebp-56
|
||
|
|
.ccoord equ ebp-60 ;current coordinate
|
||
|
|
.czbuf equ ebp-64
|
||
|
|
.cscr equ ebp-68
|
||
|
|
.xres equ ebp-72
|
||
|
|
.yres equ ebp-76
|
||
|
|
.xresm1 equ ebp-80
|
||
|
|
.yresm1 equ ebp-84
|
||
|
|
.xresp1 equ ebp-88
|
||
|
|
.yresp1 equ ebp-92
|
||
|
|
.xres3 equ ebp-96
|
||
|
|
.xres4 equ ebp-100
|
||
|
|
|
||
|
|
macro .update_cur_var
|
||
|
|
{
|
||
|
|
if Ext=NON
|
||
|
|
mov ebx,[.dz]
|
||
|
|
add [.cz],ebx
|
||
|
|
mov ebx,[.dr]
|
||
|
|
add [.cr],ebx
|
||
|
|
mov ebx,[.dg]
|
||
|
|
add [.cg],ebx
|
||
|
|
mov ebx,[.db]
|
||
|
|
add [.cb],ebx
|
||
|
|
elseif Ext=MMX
|
||
|
|
movq mm0,[.cz]
|
||
|
|
movq mm1,[.cg]
|
||
|
|
paddd mm0,mm2 ;[.dz]
|
||
|
|
paddd mm1,mm3 ;[.dg]
|
||
|
|
movq [.cz],mm0
|
||
|
|
movq [.cg],mm1
|
||
|
|
elseif Ext >= SSE2
|
||
|
|
; movups xmm1,[.cz]
|
||
|
|
paddd xmm1,xmm0
|
||
|
|
; movups [.cz],xmm1
|
||
|
|
end if
|
||
|
|
}
|
||
|
|
macro .draw_pixel
|
||
|
|
{
|
||
|
|
mov [esi],ebx ; actualize Z buffer
|
||
|
|
if Ext>=SSE2
|
||
|
|
movaps xmm7,xmm1 ;[.cb] ;;xmm1
|
||
|
|
shufps xmm7,xmm7,00111001b
|
||
|
|
psrld xmm7,ROUND
|
||
|
|
packssdw xmm7,xmm7
|
||
|
|
packuswb xmm7,xmm7
|
||
|
|
pand xmm7,xmm6 ;[.mask]
|
||
|
|
movd [edi],xmm7
|
||
|
|
else
|
||
|
|
|
||
|
|
mov eax,[.cb]
|
||
|
|
sar eax,ROUND
|
||
|
|
mov [edi],al
|
||
|
|
; and eax,0x000000ff ; clean unused bits
|
||
|
|
mov ebx,[.cg]
|
||
|
|
sar ebx,ROUND
|
||
|
|
mov [edi+1],bl
|
||
|
|
; mov ah,bl
|
||
|
|
mov edx,[.cr]
|
||
|
|
sar edx,ROUND
|
||
|
|
mov [edi+2],dl
|
||
|
|
end if
|
||
|
|
; shl ebx,16
|
||
|
|
; or eax,ebx
|
||
|
|
; mov [edi],eax
|
||
|
|
}
|
||
|
|
macro .sort
|
||
|
|
{
|
||
|
|
|
||
|
|
if Ext >= MMX
|
||
|
|
movq mm0,[.x1]
|
||
|
|
movq mm1,[.x2]
|
||
|
|
movq [.x1],mm1
|
||
|
|
movq [.x2],mm0
|
||
|
|
else
|
||
|
|
mov edx,[.x1]
|
||
|
|
xchg edx,[.x2]
|
||
|
|
mov [.x1],edx
|
||
|
|
mov edx,[.z1]
|
||
|
|
xchg edx,[.z2]
|
||
|
|
mov [.z1],edx
|
||
|
|
end if
|
||
|
|
mov edx,[.g1]
|
||
|
|
xchg edx,[.g2]
|
||
|
|
mov [.g1],edx
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
emms
|
||
|
|
mov ebp,esp
|
||
|
|
sub esp,128
|
||
|
|
mov eax,[.x1] ; check if parameters exceedes screen area
|
||
|
|
mov ebx,[.x2]
|
||
|
|
or eax,ebx
|
||
|
|
test eax,80008000h
|
||
|
|
jne .end_line
|
||
|
|
movzx edx,word [size_x_var]
|
||
|
|
mov [.xres],edx
|
||
|
|
dec edx
|
||
|
|
movzx ecx,word [size_y_var]
|
||
|
|
mov [.yres],ecx
|
||
|
|
dec ecx
|
||
|
|
cmp word[.x1],dx ;SIZE_X
|
||
|
|
jg .end_line
|
||
|
|
cmp word[.x2],dx ;SIZE_X
|
||
|
|
jg .end_line
|
||
|
|
cmp word[.y1],cx ;SIZE_Y
|
||
|
|
jg .end_line
|
||
|
|
cmp word[.y2],cx ;SIZE_Y
|
||
|
|
jg .end_line
|
||
|
|
|
||
|
|
mov edx,[.xres]
|
||
|
|
shl edx,2
|
||
|
|
mov [.xres4],edx
|
||
|
|
shr edx,2
|
||
|
|
lea edx,[edx*3]
|
||
|
|
mov [.xres3],edx
|
||
|
|
mov edx,[.xres]
|
||
|
|
mov ecx,[.yres]
|
||
|
|
dec edx
|
||
|
|
dec ecx
|
||
|
|
mov [.xresm1],edx
|
||
|
|
mov [.yresm1],ecx
|
||
|
|
add edx,2
|
||
|
|
add ecx,2
|
||
|
|
mov [.xresp1],edx
|
||
|
|
mov [.yresp1],ecx
|
||
|
|
|
||
|
|
mov [.screen],edi
|
||
|
|
mov cx,[.x1]
|
||
|
|
cmp cx,[.x2]
|
||
|
|
je .vertical_l
|
||
|
|
mov cx,[.y1]
|
||
|
|
cmp cx,[.y2]
|
||
|
|
je .horizontal_l
|
||
|
|
mov ax,[.x1]
|
||
|
|
sub ax,[.x2]
|
||
|
|
cmp ax,0
|
||
|
|
jg @f
|
||
|
|
neg ax ; calc absolute value
|
||
|
|
@@:
|
||
|
|
mov [.delta_x],ax
|
||
|
|
mov bx,[.y1]
|
||
|
|
sub bx,[.y2]
|
||
|
|
cmp bx,0
|
||
|
|
jg @f
|
||
|
|
neg bx
|
||
|
|
@@:
|
||
|
|
mov [.delta_y],bx
|
||
|
|
cmp ax,bx
|
||
|
|
je .deg45_l
|
||
|
|
jl .more_vertical_l
|
||
|
|
jg .more_horizon_l
|
||
|
|
jmp .end_line
|
||
|
|
;
|
||
|
|
.horizontal_l:
|
||
|
|
mov ax,[.x1]
|
||
|
|
mov bx,[.x2]
|
||
|
|
cmp bx,ax
|
||
|
|
jge @f
|
||
|
|
|
||
|
|
.sort
|
||
|
|
@@:
|
||
|
|
|
||
|
|
mov bx,[.x2]
|
||
|
|
sub bx,[.x1]
|
||
|
|
movsx ebx,bx
|
||
|
|
cmp ebx,0 ;line lenght equql 0
|
||
|
|
je .end_line
|
||
|
|
mov [.delta_x],ebx
|
||
|
|
|
||
|
|
call .calc_delta
|
||
|
|
|
||
|
|
mov eax,[.xres] ;SIZE_X
|
||
|
|
movsx ebx,word[.y1]
|
||
|
|
mul ebx
|
||
|
|
add esi,eax
|
||
|
|
lea eax,[eax*3]
|
||
|
|
add esi,eax
|
||
|
|
add edi,eax
|
||
|
|
movsx eax,word[.x1]
|
||
|
|
add esi,eax
|
||
|
|
lea eax,[eax*3]
|
||
|
|
add edi,eax
|
||
|
|
add esi,eax
|
||
|
|
|
||
|
|
mov ecx,[.delta_x]
|
||
|
|
|
||
|
|
movsx ebx,word[.r1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cr],ebx
|
||
|
|
movsx ebx,word[.g1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cg],ebx
|
||
|
|
movsx ebx,word[.b1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cb],ebx
|
||
|
|
movsx ebx,word[.z1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cz],ebx
|
||
|
|
if Ext >= SSE2
|
||
|
|
movups xmm1,[.cz]
|
||
|
|
end if
|
||
|
|
.hdraw:
|
||
|
|
if Ext >= SSE2
|
||
|
|
movd ebx,xmm1
|
||
|
|
else
|
||
|
|
mov ebx,[.cz]
|
||
|
|
end if
|
||
|
|
cmp [esi],ebx
|
||
|
|
jle .skip
|
||
|
|
|
||
|
|
.draw_pixel
|
||
|
|
|
||
|
|
.skip:
|
||
|
|
add edi,3
|
||
|
|
add esi,4
|
||
|
|
|
||
|
|
.update_cur_var
|
||
|
|
|
||
|
|
loop .hdraw
|
||
|
|
jmp .end_line
|
||
|
|
|
||
|
|
.vertical_l:
|
||
|
|
mov ax,[.y1]
|
||
|
|
cmp [.y2],ax
|
||
|
|
jge @f
|
||
|
|
|
||
|
|
.sort
|
||
|
|
@@:
|
||
|
|
mov bx,[.y2]
|
||
|
|
sub bx,[.y1]
|
||
|
|
movsx ebx,bx
|
||
|
|
cmp ebx,0
|
||
|
|
je .end_line
|
||
|
|
mov [.delta_y],ebx
|
||
|
|
|
||
|
|
call .calc_delta
|
||
|
|
|
||
|
|
mov eax,[.xres] ;SIZE_X
|
||
|
|
movsx ebx,word[.y1]
|
||
|
|
mul ebx
|
||
|
|
add esi,eax
|
||
|
|
lea eax,[eax*3]
|
||
|
|
add edi,eax
|
||
|
|
add esi,eax
|
||
|
|
movsx eax,word[.x1]
|
||
|
|
add esi,eax
|
||
|
|
lea eax,[eax*3]
|
||
|
|
add esi,eax
|
||
|
|
add edi,eax
|
||
|
|
|
||
|
|
mov ecx,[.delta_y]
|
||
|
|
|
||
|
|
movsx ebx,word[.r1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cr],ebx
|
||
|
|
movsx ebx,word[.g1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cg],ebx
|
||
|
|
movsx ebx,word[.b1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cb],ebx
|
||
|
|
movsx ebx,word[.z1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cz],ebx
|
||
|
|
if Ext >= SSE2
|
||
|
|
movups xmm1,[.cz]
|
||
|
|
end if
|
||
|
|
|
||
|
|
.v_draw:
|
||
|
|
if Ext >= SSE2
|
||
|
|
movd ebx,xmm1
|
||
|
|
else
|
||
|
|
mov ebx,[.cz]
|
||
|
|
end if
|
||
|
|
cmp [esi],ebx
|
||
|
|
jle @f
|
||
|
|
|
||
|
|
.draw_pixel
|
||
|
|
|
||
|
|
@@:
|
||
|
|
add edi,[.xres3]
|
||
|
|
add esi,[.xres4]
|
||
|
|
|
||
|
|
.update_cur_var
|
||
|
|
|
||
|
|
loop .v_draw
|
||
|
|
jmp .end_line
|
||
|
|
.deg45_l:
|
||
|
|
mov word[.line_lenght],ax
|
||
|
|
mov ax,[.x1]
|
||
|
|
cmp [.x2],ax
|
||
|
|
jge @f
|
||
|
|
|
||
|
|
.sort
|
||
|
|
@@:
|
||
|
|
mov bx,[.y2]
|
||
|
|
sub bx,[.y1]
|
||
|
|
movsx ebx,bx
|
||
|
|
cmp ebx,0
|
||
|
|
je .end_line
|
||
|
|
mov [.delta_y],ebx
|
||
|
|
mov bx,[.x2]
|
||
|
|
sub bx,[.x1]
|
||
|
|
movsx ebx,bx
|
||
|
|
mov [.delta_x],ebx
|
||
|
|
|
||
|
|
call .calc_delta
|
||
|
|
|
||
|
|
mov eax,[.xres]
|
||
|
|
movsx ebx,word[.y1] ;calc begin values in screen and Z buffers
|
||
|
|
mul ebx
|
||
|
|
lea ebx,[3*eax]
|
||
|
|
add edi,ebx
|
||
|
|
shl eax,2
|
||
|
|
add esi,eax
|
||
|
|
movsx eax,word[.x1]
|
||
|
|
lea ebx,[eax*3]
|
||
|
|
add edi,ebx
|
||
|
|
shl eax,2
|
||
|
|
add esi,eax
|
||
|
|
|
||
|
|
movzx ecx,word[.line_lenght]
|
||
|
|
|
||
|
|
movsx ebx,word[.r1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cr],ebx
|
||
|
|
movsx ebx,word[.g1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cg],ebx
|
||
|
|
movsx ebx,word[.b1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cb],ebx
|
||
|
|
movsx ebx,word[.z1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cz],ebx
|
||
|
|
.d45_draw:
|
||
|
|
if Ext >= SSE2
|
||
|
|
movd ebx,xmm1
|
||
|
|
else
|
||
|
|
mov ebx,[.cz]
|
||
|
|
end if
|
||
|
|
cmp [esi],ebx
|
||
|
|
jle @f
|
||
|
|
|
||
|
|
.draw_pixel
|
||
|
|
|
||
|
|
@@:
|
||
|
|
cmp dword[.delta_y],0
|
||
|
|
jl @f
|
||
|
|
add edi,[.xres3] ;SIZE_X*3+3
|
||
|
|
add edi,3
|
||
|
|
add esi,[.xres4] ;SIZE_X*4+4
|
||
|
|
add esi,4
|
||
|
|
jmp .d45_1
|
||
|
|
@@:
|
||
|
|
sub edi,[.xres3] ;(SIZE_X*3)-3
|
||
|
|
sub edi,3
|
||
|
|
sub esi,[.xres4] ;(SIZE_X*4)-4
|
||
|
|
sub esi,4
|
||
|
|
.d45_1:
|
||
|
|
.update_cur_var
|
||
|
|
|
||
|
|
loop .d45_draw
|
||
|
|
jmp .end_line
|
||
|
|
|
||
|
|
.more_vertical_l:
|
||
|
|
mov word[.line_lenght],bx
|
||
|
|
mov ax,[.y1]
|
||
|
|
cmp [.y2],ax
|
||
|
|
jge @f
|
||
|
|
.sort
|
||
|
|
@@:
|
||
|
|
mov bx,[.y2]
|
||
|
|
sub bx,[.y1]
|
||
|
|
movsx ebx,bx
|
||
|
|
cmp ebx,0
|
||
|
|
je .end_line ;=======================
|
||
|
|
mov [.delta_y],ebx
|
||
|
|
|
||
|
|
mov ax,[.x2]
|
||
|
|
sub ax,[.x1]
|
||
|
|
cwde
|
||
|
|
shl eax,ROUND
|
||
|
|
cdq
|
||
|
|
idiv ebx
|
||
|
|
mov [.delta],eax
|
||
|
|
|
||
|
|
call .calc_delta
|
||
|
|
|
||
|
|
mov eax,[.xres] ;SIZE_X
|
||
|
|
movsx ebx,word[.y1] ;calc begin values in screen and Z buffers
|
||
|
|
mul ebx
|
||
|
|
lea ebx,[3*eax]
|
||
|
|
add esi,ebx
|
||
|
|
add esi,eax
|
||
|
|
add edi,ebx
|
||
|
|
mov [.cscr],edi
|
||
|
|
mov [.czbuf],esi
|
||
|
|
|
||
|
|
movzx ecx,word[.line_lenght]
|
||
|
|
|
||
|
|
movsx ebx,word[.r1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cr],ebx
|
||
|
|
movsx ebx,word[.g1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cg],ebx
|
||
|
|
movsx ebx,word[.b1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cb],ebx
|
||
|
|
movsx ebx,word[.z1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cz],ebx
|
||
|
|
if Ext >= SSE2
|
||
|
|
movups xmm1,[.cz]
|
||
|
|
end if
|
||
|
|
movsx ebx,word[.x1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.ccoord],ebx ; .ccoord -> x coordinate
|
||
|
|
.draw_m_v:
|
||
|
|
mov edi,[.cscr]
|
||
|
|
mov esi,[.czbuf]
|
||
|
|
mov eax,[.ccoord]
|
||
|
|
sar eax,ROUND
|
||
|
|
lea ebx,[eax*3]
|
||
|
|
add edi,ebx
|
||
|
|
add esi,ebx
|
||
|
|
add esi,eax
|
||
|
|
if Ext >= SSE2
|
||
|
|
movd ebx,xmm1
|
||
|
|
else
|
||
|
|
mov ebx,[.cz]
|
||
|
|
end if
|
||
|
|
cmp [esi],ebx
|
||
|
|
jle @f
|
||
|
|
|
||
|
|
.draw_pixel
|
||
|
|
|
||
|
|
@@:
|
||
|
|
mov eax,[.delta]
|
||
|
|
mov ebx,[.xres3]
|
||
|
|
add [.ccoord],eax
|
||
|
|
mov eax,[.xres4]
|
||
|
|
add dword[.cscr],ebx ;SIZE_X*3 ;
|
||
|
|
add dword[.czbuf],eax ;SIZE_X*4
|
||
|
|
.d_m_v1:
|
||
|
|
|
||
|
|
.update_cur_var
|
||
|
|
|
||
|
|
dec ecx
|
||
|
|
jnz .draw_m_v
|
||
|
|
jmp .end_line
|
||
|
|
|
||
|
|
.more_horizon_l:
|
||
|
|
mov word[.line_lenght],ax
|
||
|
|
mov ax,[.x1]
|
||
|
|
cmp [.x2],ax
|
||
|
|
jge @f
|
||
|
|
|
||
|
|
.sort
|
||
|
|
@@:
|
||
|
|
mov bx,[.x2]
|
||
|
|
sub bx,[.x1]
|
||
|
|
movsx ebx,bx
|
||
|
|
cmp ebx,0;=======================
|
||
|
|
je .end_line
|
||
|
|
mov [.delta_x],ebx
|
||
|
|
|
||
|
|
mov ax,[.y2]
|
||
|
|
sub ax,[.y1]
|
||
|
|
cwde
|
||
|
|
shl eax,ROUND
|
||
|
|
cdq
|
||
|
|
idiv ebx
|
||
|
|
mov [.delta],eax
|
||
|
|
|
||
|
|
call .calc_delta
|
||
|
|
|
||
|
|
;calc begin values in screen and Z buffers
|
||
|
|
movsx ebx,word[.x1]
|
||
|
|
mov eax,ebx
|
||
|
|
add esi,ebx
|
||
|
|
lea ebx,[3*ebx]
|
||
|
|
add esi,ebx
|
||
|
|
add edi,ebx
|
||
|
|
mov [.cscr],edi
|
||
|
|
mov [.czbuf],esi
|
||
|
|
|
||
|
|
movzx ecx,word[.line_lenght]
|
||
|
|
|
||
|
|
movsx ebx,word[.r1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cr],ebx
|
||
|
|
movsx ebx,word[.g1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cg],ebx
|
||
|
|
movsx ebx,word[.b1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cb],ebx
|
||
|
|
movsx ebx,word[.z1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.cz],ebx
|
||
|
|
if Ext >= SSE2
|
||
|
|
movups xmm1,[.cz]
|
||
|
|
end if
|
||
|
|
movsx ebx,word[.y1]
|
||
|
|
shl ebx,ROUND
|
||
|
|
mov [.ccoord],ebx ; .ccoord -> y coordinate
|
||
|
|
|
||
|
|
.draw_m_h:
|
||
|
|
mov edi,[.cscr]
|
||
|
|
mov esi,[.czbuf]
|
||
|
|
mov eax,[.ccoord] ; ccoord - cur y coordinate
|
||
|
|
sar eax,ROUND
|
||
|
|
mov ebx,[.xres] ;SIZE_X
|
||
|
|
mul ebx
|
||
|
|
add esi,eax
|
||
|
|
lea eax,[eax*3]
|
||
|
|
add esi,eax
|
||
|
|
add edi,eax
|
||
|
|
if Ext >= SSE2
|
||
|
|
movd ebx,xmm1
|
||
|
|
else
|
||
|
|
mov ebx,[.cz]
|
||
|
|
end if
|
||
|
|
cmp [esi],ebx
|
||
|
|
jle @f
|
||
|
|
|
||
|
|
.draw_pixel
|
||
|
|
|
||
|
|
@@:
|
||
|
|
mov eax,[.delta]
|
||
|
|
add [.ccoord],eax
|
||
|
|
add dword[.cscr],3 ;
|
||
|
|
add dword[.czbuf],4
|
||
|
|
|
||
|
|
.update_cur_var
|
||
|
|
|
||
|
|
dec ecx
|
||
|
|
jnz .draw_m_h
|
||
|
|
|
||
|
|
.end_line:
|
||
|
|
mov esp,ebp
|
||
|
|
ret 24
|
||
|
|
|
||
|
|
.calc_delta:
|
||
|
|
mov ax,[.z2]
|
||
|
|
sub ax,[.z1]
|
||
|
|
cwde
|
||
|
|
shl eax,ROUND
|
||
|
|
cdq
|
||
|
|
idiv ebx
|
||
|
|
mov [.dz],eax
|
||
|
|
|
||
|
|
mov ax,[.r2]
|
||
|
|
sub ax,[.r1]
|
||
|
|
cwde
|
||
|
|
shl eax,ROUND
|
||
|
|
cdq
|
||
|
|
idiv ebx
|
||
|
|
mov [.dr],eax
|
||
|
|
|
||
|
|
mov ax,[.g2]
|
||
|
|
sub ax,[.g1]
|
||
|
|
cwde
|
||
|
|
shl eax,ROUND
|
||
|
|
cdq
|
||
|
|
idiv ebx
|
||
|
|
mov [.dg],eax
|
||
|
|
|
||
|
|
mov ax,[.b2]
|
||
|
|
sub ax,[.b1]
|
||
|
|
cwde
|
||
|
|
shl eax,ROUND
|
||
|
|
cdq
|
||
|
|
idiv ebx
|
||
|
|
mov [.db],eax
|
||
|
|
if Ext=MMX | Ext = SSE
|
||
|
|
movq mm2,[.dz]
|
||
|
|
movq mm3,[.dg]
|
||
|
|
else if Ext >= SSE2
|
||
|
|
movups xmm0,[.dz]
|
||
|
|
movups xmm6,[.mask]
|
||
|
|
end if
|
||
|
|
ret
|
||
|
|
.mask:
|
||
|
|
dq 0xffffffff00ffffff
|
||
|
|
dq 0xffffffffffffffff
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|