207 lines
No EOL
2.6 KiB
NASM
207 lines
No EOL
2.6 KiB
NASM
EXTRN theloop:far
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code SEGMENT para public 'CODE'
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ASSUME cs:code
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.386
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LOCALS
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PUBLIC _wave1,_wave2,_vbuf,_cameralevel
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_wave1 dw 0,0
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_wave2 dw 0,0
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_vbuf dw 0,0
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_cameralevel dw 0
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PUBLIC _sin1024
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include sin1024.inc
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PUBLIC _setborder
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_setborder PROC FAR
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push bp
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mov bp,sp
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mov dx,3dah
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in al,dx
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mov dx,3c0h
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mov al,11h+32
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out dx,al
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mov al,[bp+6]
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out dx,al
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pop bp
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ret
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_setborder ENDP
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PUBLIC _inittwk
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_inittwk PROC FAR
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push bp
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mov bp,sp
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push si
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push di
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push ds
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;clear palette
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mov dx,3c8h
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xor al,al
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out dx,al
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inc dx
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mov cx,768
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@@1: out dx,al
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loop @@1
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mov dx,3d4h
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;400 rows
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;mov ax,00009h
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;out dx,ax
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;tweak
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mov ax,00014h
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out dx,ax
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mov ax,0e317h
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out dx,ax
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mov dx,3c4h
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mov ax,0604h
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out dx,ax
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;
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mov dx,3c4h
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mov ax,0f02h
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out dx,ax
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mov ax,0a000h
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mov es,ax
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xor di,di
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mov cx,32768
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xor ax,ax
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rep stosw
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;
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pop ds
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pop di
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pop si
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pop bp
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ret
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_inittwk ENDP
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PUBLIC _setpalarea
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_setpalarea PROC FAR
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push bp
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mov bp,sp
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push si
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push di
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push ds
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lds si,[bp+6]
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mov ax,[bp+10]
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mov dx,3c8h
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out dx,al
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mov cx,[bp+12]
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mov ax,cx
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shl cx,1
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add cx,ax
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inc dx
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rep outsb
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sti
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pop ds
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pop di
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pop si
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pop bp
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ret
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_setpalarea ENDP
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PUBLIC _docol
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_docol PROC FAR
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push bp
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mov bp,sp
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push si
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push di
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push ds
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mov es,cs:_vbuf[2]
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mov fs,cs:_wave1[2]
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mov gs,cs:_wave2[2]
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mov si,[bp+6]
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mov di,[bp+8]
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mov cx,[bp+10]
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add cx,cx
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mov dx,[bp+12]
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add dx,dx
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mov bp,[bp+14]
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mov ax,cs:_cameralevel
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int 3
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call theloop
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pop ds
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pop di
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pop si
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pop bp
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ret
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_docol ENDP
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PUBLIC _docopy
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_docopy PROC FAR
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push bp
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mov bp,sp
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push si
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push di
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push ds
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mov es,[bp+6]
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mov ds,cs:_vbuf[2]
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mov si,50*160
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mov di,50*80
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mov cx,150
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mov bl,255
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mov bh,bl
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mov ax,bx
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shl ebx,16
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mov bx,ax
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@@1: cmp cx,100
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jge @@2
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mov dx,3c4h
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mov ax,0302h
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out dx,ax
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zzz=0
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REPT 20
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mov eax,ds:[si+zzz]
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mov es:[di+zzz],eax
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zzz=zzz+4
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ENDM
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mov dx,3c4h
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mov ax,0C02h
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out dx,ax
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zzz=0
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REPT 20
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mov eax,ds:[si+zzz+80]
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mov es:[di+zzz],eax
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zzz=zzz+4
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ENDM
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add si,160
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add di,80
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dec cx
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jnz @@1
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pop ds
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pop di
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pop si
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pop bp
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ret
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@@2: ;this loop also clears
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mov dx,3c4h
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mov ax,0302h
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out dx,ax
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zzz=0
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REPT 20
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mov eax,ds:[si+zzz]
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mov ds:[si+zzz],ebx
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mov es:[di+zzz],eax
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zzz=zzz+4
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ENDM
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mov dx,3c4h
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mov ax,0C02h
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out dx,ax
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zzz=0
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REPT 20
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mov eax,ds:[si+zzz+80]
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mov ds:[si+zzz+80],ebx
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mov es:[di+zzz],eax
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zzz=zzz+4
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ENDM
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sub ebx,01010101h
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cmp bl,192
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jge @@3
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mov ebx,0c0c0c0c0h
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@@3: add si,160
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add di,80
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dec cx
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jmp @@1
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_docopy ENDP
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code ENDS
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END |