mirror of https://github.com/nmlgc/ReC98.git
348 lines
5.2 KiB
NASM
348 lines
5.2 KiB
NASM
; superimpose & master library module
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;
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; Description:
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; パターンの表示
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;
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; Functions/Procedures:
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; void super_put( int x, int y, int num ) ;
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;
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; Parameters:
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; x,y 描画する座標
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; num パターン番号
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;
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; Returns:
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;
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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: V30
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; GRCG
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;
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; Notes:
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;
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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: superput.asm 0.17 92/05/29 20:38:10 Kazumi Rel $
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;
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; 93/ 3/20 Initial: master.lib <- super.lib 0.22b
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; 93/ 5/ 4 [M0.16]
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; 93/ 9/20 [M0.21] すこし(32byteぐらい)縮小
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; 93/ 9/20 [M0.21] WORD_MASK廃止
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;
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func SUPER_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 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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mov CX,[BP+@@x]
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mov BP,[BP+@@y]
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mov AX,BP ;-+
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shl AX,2 ; |
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add BP,AX ; |BP=y*80
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shl BP,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 BP,AX ;GVRAM offset address
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mov SI,CX
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mov CH,DH ;DL -> DH
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shr CH,1
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mov AL,DL
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mov AH,BYTE_MASK[SI]
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mov CS:_BX_,AX
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test BP,1
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jnz short @@ODD_ADDRESS
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; 開始アドレスが偶数
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@@EVEN_ADDRESS:
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test DH,1 ;DX -> DH
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jnz short @@ODD_SIZE1
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; 開始アドレスが偶数で長さも偶数
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mov BYTE PTR CS:[COUNT1],CH
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mov AL,80
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sub AL,DH ;DL -> DH
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mov BYTE PTR CS:[ADD_DI1],AL
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mov CS:SUPERPUT_DISP_ADDRESS,offset SUPERPUT_DISP1 - offset JUMP_ORIGIN
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jmp short @@START
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; 開始アドレスが偶数で長さは奇数
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EVEN
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@@ODD_SIZE1:
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mov BYTE PTR CS:[COUNT2],CH
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mov AL,80
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sub AL,DH ;DL -> DH
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mov BYTE PTR CS:[ADD_DI2],AL
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mov CS:SUPERPUT_DISP_ADDRESS,offset SUPERPUT_DISP2 - offset JUMP_ORIGIN
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jmp short @@START
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; 開始アドレスが奇数
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EVEN
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@@ODD_ADDRESS:
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dec BP
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test DH,1 ;DX -> DH
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jnz short @@ODD_SIZE2
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; 開始アドレスが奇数で長さは偶数
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dec CH ;!!!!!!!!!!!!!!!!!!!!!
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mov BYTE PTR CS:[COUNT3],CH
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mov AL,78 ;word
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sub AL,DH ;DL -> DH
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mov BYTE PTR CS:[ADD_DI3],AL
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mov CS:SUPERPUT_DISP_ADDRESS,offset SUPERPUT_DISP3 - offset JUMP_ORIGIN
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jmp short @@START
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; 開始アドレスが奇数で長さも奇数
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EVEN
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@@ODD_SIZE2:
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mov BYTE PTR CS:[COUNT4],CH
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mov AL,79 ;word
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sub AL,DH ;DL -> DH
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mov BYTE PTR CS:[ADD_DI4],AL
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mov CS:SUPERPUT_DISP_ADDRESS,offset SUPERPUT_DISP4 - offset JUMP_ORIGIN
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EVEN
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; ごーごー
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@@START:
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mov DS,super_patdata[BX]
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xor SI,SI
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mov AL,0c0h ;RMW mode
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out 7ch,AL
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mov AX,SI
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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 AX,0a800h
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mov ES,AX
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call SUPERPUT_DISP ;originally cls_loop
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mov AX,0ff00h + 11001110b
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out 7ch,AL ;RMW mode
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mov AL,AH ;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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call SUPERPUT_DISP
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mov AL,11001101b
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out 7ch,AL ;RMW mode
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call SUPERPUT_DISP
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mov AL,11001011b
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out 7ch,AL ;RMW mode
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call SUPERPUT_DISP
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mov AL,11000111b
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out 7ch,AL ;RMW mode
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call SUPERPUT_DISP
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xor AL,AL
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out 7ch,AL ;grcg off
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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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; 開始偶数長さ偶数
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;
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;
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SUPERPUT_DISP1 proc near
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xor DL,DL
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EVEN
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@@PUT_LOOP1:
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lodsw
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ror AX,CL
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mov DH,AL
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and AL,BH
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xor DH,AL
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or AL,DL
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stosw ;mov ES:[DI],AX ;;;or
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mov DL,DH
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dec CH
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jnz short @@PUT_LOOP1
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mov ES:[DI],DL
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mov DL,CH ;DL=0
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add DI,80 ;dummy
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ADD_DI1 EQU $-1
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mov CH,11h ;dummy
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COUNT1 EQU $-1
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dec BL
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jnz short @@PUT_LOOP1
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ret
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SUPERPUT_DISP1 endp
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; 開始偶数長さ奇数
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;
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;
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EVEN
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SUPERPUT_DISP2 proc near
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xor DL,DL
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EVEN
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@@SINGLE_CHECK2:
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or CH,CH
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jz short @@SKIP2
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EVEN
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@@PUT_LOOP2:
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lodsw
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ror AX,CL
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mov DH,AL
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and AL,BH
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xor DH,AL
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or AL,DL
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stosw ;mov ES:[DI],AX ;;;or
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mov DL,DH
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dec CH
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jnz short @@PUT_LOOP2
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@@SKIP2:
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lodsb
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xor AH,AH
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ror AX,CL
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or AL,DL
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stosw
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dec DI
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mov DL,CH ;DL=0
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add DI,80 ;dummy
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ADD_DI2 EQU $-1
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mov CH,11h ;dummy
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COUNT2 EQU $-1
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dec BL
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jnz short @@SINGLE_CHECK2
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ret
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SUPERPUT_DISP2 endp
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; 開始奇数長さ偶数
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;
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;
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EVEN
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SUPERPUT_DISP3 proc near
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@@PUT_LOOP3_1:
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lodsb
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xor AH,AH
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ror AX,CL
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mov DL,AH
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xchg AH,AL
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xor AL,AL
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stosw
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or CH,CH
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jz short @@NO_WORD1
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EVEN
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@@PUT_LOOP3_2:
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lodsw
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ror AX,CL
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mov DH,AL
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and AL,BH
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xor DH,AL
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or AL,DL
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stosw ;mov ES:[DI],AX ;;;or
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mov DL,DH
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dec CH
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jnz short @@PUT_LOOP3_2
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EVEN
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@@NO_WORD1:
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lodsb
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xor AH,AH
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ror AX,CL
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or AL,DL
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stosw
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mov DL,CH ;DL=0
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add DI,80 ;dummy
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ADD_DI3 EQU $-1
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mov CH,11h ;dummy
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COUNT3 EQU $-1
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dec BL
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jnz short @@PUT_LOOP3_1
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ret
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SUPERPUT_DISP3 endp
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; 開始奇数長さ奇数
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;
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;
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EVEN
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SUPERPUT_DISP4 proc near
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@@PUT_LOOP4_1:
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lodsb
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xor AH,AH
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ror AX,CL
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mov DL,AH
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xchg AH,AL
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xor AL,AL
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stosw
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or CH,CH
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jz short @@NO_WORD2
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EVEN
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@@PUT_LOOP4_2:
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lodsw
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ror AX,CL
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mov DH,AL
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and AL,BH
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xor DH,AL
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or AL,DL
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stosw ;mov ES:[DI],AX ;;;or
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mov DL,DH
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dec CH
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jnz short @@PUT_LOOP4_2
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EVEN
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@@NO_WORD2:
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mov ES:[DI],DL
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mov DL,CH ;DL=0
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add DI,80 ;dummy
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ADD_DI4 EQU $-1
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mov CH,11h ;dummy
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COUNT4 EQU $-1
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dec BL
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jnz short @@PUT_LOOP4_1
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ret
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SUPERPUT_DISP4 endp
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;
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; 表示サブルーチンエントリ
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;
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;
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EVEN
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SUPERPUT_DISP proc near
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mov DI,BP
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JMOV BX,_BX_ ; BH=MIDMASK BL=YLEN
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jmp near ptr SUPERPUT_DISP1 ; ダミーで遠いところを
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org $-2
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SUPERPUT_DISP_ADDRESS dw ?
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JUMP_ORIGIN label word
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EVEN
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SUPERPUT_DISP endp
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