mirror of https://github.com/nmlgc/ReC98.git
163 lines
2.5 KiB
NASM
163 lines
2.5 KiB
NASM
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; superimpose & master library module
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;
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; Description:
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; 大きさを縦横2倍に拡大してパターンを表示する
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;
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; Functions/Procedures:
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; void super_large_put( int x, int y, int num ) ;
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;
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; Parameters:
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; x,y 左上端の座標
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; num パターン番号
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;
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; Returns:
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; none
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;
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; Binding Target:
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; Microsoft-C / Turbo-C / Turbo Pascal
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;
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; Running Target:
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; PC-9801
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;
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; Requiring Resources:
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; CPU: 8086
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;
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; Notes:
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; クリッピングしてません
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;
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; Compiler/Assembler:
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; TASM 3.0
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; OPTASM 1.6
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;
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; Author:
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; Kazumi(奥田 仁)
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; 恋塚(恋塚昭彦)
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;
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; Revision History:
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;
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;$Id: largeput.asm 0.04 92/05/29 20:06:02 Kazumi Rel $
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;
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; 93/ 3/10 Initial: master.lib <- super.lib 0.22b
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;
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func SUPER_LARGE_PUT ; super_large_put() {
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push BP
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mov BP,SP
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push DS
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push SI
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push DI
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@@x = (RETSIZE+3)*2
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@@y = (RETSIZE+2)*2
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@@num = (RETSIZE+1)*2
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mov ES,graph_VramSeg
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mov CX,[BP+@@x]
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mov DI,[BP+@@y]
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mov AX,DI ;-+
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shl AX,2 ; |
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add DI,AX ; |DI=y*80
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shl DI,4 ;-+
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mov AX,CX
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and CX,7h ;CL=x%8(shift dot counter)
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shr AX,3 ;AX=x/8
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add DI,AX ;GVRAM offset address
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mov WORD PTR CS:[LARGEPUT_DI_],DI
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mov BX,[BP+@@num]
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shl BX,1 ;integer size & near pointer
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mov DX,super_patsize[BX] ;pattern size (1-8)
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xor SI,SI
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mov DS,super_patdata[BX] ;BX+2 -> BX
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mov BX,DX
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xor BH,BH
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mov DL,DH ;????
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xor DH,DH ;????
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mov BYTE PTR CS:[LARGEPUT_CH_],BL
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mov AX,160
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sub AX,DX
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sub AX,DX ;large
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mov WORD PTR CS:[largeput_add_di],AX
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mov AL,0c0h ;RMW mode
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out 7ch,AL
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xor AL,AL
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out 7eh,AL
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out 7eh,AL
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out 7eh,AL
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out 7eh,AL
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mov DH,DL
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call LARGEPUT_DISP8 ;originally cls_loop
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mov AL,0FFh
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out 7eh,AL
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out 7eh,AL
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out 7eh,AL
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out 7eh,AL
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mov AL,11001110b
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out 7ch,AL ;RMW mode
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call LARGEPUT_DISP8
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mov AL,11001101b
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out 7ch,AL ;RMW mode
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call LARGEPUT_DISP8
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mov AL,11001011b
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out 7ch,AL ;RMW mode
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call LARGEPUT_DISP8
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mov AL,11000111b
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out 7ch,AL ;RMW mode
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call LARGEPUT_DISP8
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xor AL,AL
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out 7ch,AL ;grcg stop
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pop DI
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pop SI
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pop DS
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pop BP
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ret 6
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endfunc ; }
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; IN:
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; AH
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; DH
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LARGEPUT_DISP8 proc near
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mov CH,11h ;dummy
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LARGEPUT_CH_ EQU $-1
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mov DI,1111h ;dummy
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LARGEPUT_DI_ EQU $-2
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EVEN
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@@PUT_LOOP:
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lodsb
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mov BP,AX
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and AX,00f0h
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shr AX,4
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mov BX,AX
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mov AL,CS:LARGE_BYTE[BX]
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xor AH,AH
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ror AX,CL
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mov ES:[DI],AX ;stosw より速い
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mov ES:[DI+80],AX
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inc DI
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and BP,000fh
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mov AL,CS:LARGE_BYTE[BP]
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xor AH,AH
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ror AX,CL
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mov ES:[DI],AX ;stosw より速い
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mov ES:[DI+80],AX
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inc DI
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dec DH
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jnz short @@PUT_LOOP
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add DI,1111h ;dummy
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largeput_add_di EQU $-2
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mov DH,DL
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dec CH
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jnz short @@PUT_LOOP
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ret
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LARGEPUT_DISP8 endp
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