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Assembly Source File | 1989-03-01 | 24.1 KB | 764 lines

ASSUME cs:_TEXT, DS:SEPDATA SEPDATA SEGMENT WORD 'DATA' public map, lmapX, lmapY, pmapX, pmapY, imagelist public notile,corner,allwhite, allblue public allred,road,grass,overwrite ; Tiles to draw overwrite db 123 notile db 000h, 000h, 000h, 000h db 000h, 000h, 000h, 000h db 000h, 000h, 000h, 000h db 000h, 000h, 000h, 000h corner db 055h, 055h, 040h, 000h db 040h, 000h, 040h, 000h db 040h, 000h, 040h, 000h db 040h, 000h, 040h, 000h allwhite db 0FFh, 0FFh, 0FFh, 0FFh db 0FFh, 0FFh, 0FFh, 0FFh db 0FFh, 0FFh, 0FFh, 0FFh db 0FFh, 0FFh, 0FFh, 0FFh allblue db 055h, 055h, 055h, 055h db 055h, 055h, 055h, 055h db 055h, 055h, 055h, 055h db 055h, 055h, 055h, 055h allred db 0AAh, 0AAh, 0AAh, 0AAh db 0AAh, 0AAh, 0AAh, 0AAh db 0AAh, 0AAh, 0AAh, 0AAh db 0AAh, 0AAh, 0AAh, 0AAh road db 000h, 000h, 000h, 000h db 003h, 0C0h, 000h, 000h db 000h, 000h, 003h, 0C0h db 000h, 000h, 000h, 000h grass db 055h, 055h, 0DDh, 055h db 055h, 055h, 057h, 075h db 075h, 055h, 057h, 055h db 055h, 055h, 055h, 0D5h swamp db 055h, 055h, 0CCh, 055h db 055h, 055h, 053h, 035h db 035h, 055h, 053h, 055h db 055h, 055h, 055h, 0C5h include brick.asm include tree11.asm include tree12.asm include tree13.asm include tree21.asm include tree22.asm include tree23.asm include tree31.asm include tree32.asm include tree33.asm include smtree.asm include dead1a.asm include dead1b.asm include dead1c.asm include dead1d.asm include rocket1.asm include rocket2.asm include rocket3.asm include rocket4.asm include rocket5.asm include rocket6.asm include rocket7.asm include rocket8.asm include shot84.asm include cannonbl.asm include mach8.asm include mach16.asm include laser15.asm include laser26.asm include laser37.asm include laser48.asm include boom1.asm include boom2.asm include boom3.asm include boom4.asm include booma1.asm include booma2.asm include booma3.asm include booma4.asm include tank1d2a.asm include tank1d2b.asm include tank1d2c.asm include tank1d2d.asm include tank1d4a.asm include tank1d4b.asm include tank1d4c.asm include tank1d4d.asm include tank1d6a.asm include tank1d6b.asm include tank1d6c.asm include tank1d6d.asm include tank1d8a.asm include tank1d8b.asm include tank1d8c.asm include tank1d8d.asm include tank11a.asm include tank11b.asm include tank11c.asm include tank11d.asm include tank13a.asm include tank13b.asm include tank13c.asm include tank13d.asm include tank15a.asm include tank15b.asm include tank15c.asm include tank15d.asm include tank17a.asm include tank17b.asm include tank17c.asm include tank17d.asm include tank21a.asm include tank21b.asm include tank21c.asm include tank21d.asm include tank23a.asm include tank23b.asm include tank23c.asm include tank23d.asm include tank25a.asm include tank25b.asm include tank25c.asm include tank25d.asm include tank27a.asm include tank27b.asm include tank27c.asm include tank27d.asm include tank22a.asm include tank22b.asm include tank22c.asm include tank22d.asm include tank24a.asm include tank24b.asm include tank24c.asm include tank24d.asm include tank26a.asm include tank26b.asm include tank26c.asm include tank26d.asm include tank28a.asm include tank28b.asm include tank28c.asm include tank28d.asm include tank31a.asm include tank31b.asm include tank31c.asm include tank31d.asm include tank33a.asm include tank33b.asm include tank33c.asm include tank33d.asm include tank35a.asm include tank35b.asm include tank35c.asm include tank35d.asm include tank37a.asm include tank37b.asm include tank37c.asm include tank37d.asm include tank32a.asm include tank32b.asm include tank32c.asm include tank32d.asm include tank34a.asm include tank34b.asm include tank34c.asm include tank34d.asm include tank36a.asm include tank36b.asm include tank36c.asm include tank36d.asm include tank38a.asm include tank38b.asm include tank38c.asm include tank38d.asm imagelist dw notile ; pointers to images dw corner dw allwhite dw allblue dw allred dw road dw grass dw swamp dw brick dw notile ; unused dw notile ; unused dw dead1a dw dead1b dw dead1c dw dead1d dw tree11 dw tree12 dw tree13 dw tree21 dw tree22 ; --- dw tree23 dw tree31 dw tree32 dw tree33 dw smtree dw cannonbl dw rocket1 dw rocket2 dw rocket3 dw rocket4 dw rocket5 dw rocket6 dw rocket7 dw rocket8 dw mach8 dw mach16 dw laser15 dw laser26 dw laser37 dw laser48 dw tank1d8a dw tank1d8b dw tank1d8c dw tank1d8d dw tank1d2a dw tank1d2b dw tank1d2c dw tank1d2d dw tank1d4a dw tank1d4b dw tank1d4c dw tank1d4d dw tank1d6a dw tank1d6b dw tank1d6c dw tank1d6d dw tank11a dw tank11b dw tank11c dw tank11d dw tank13a dw tank13b dw tank13c dw tank13d dw tank15a dw tank15b dw tank15c dw tank15d dw tank17a dw tank17b dw tank17c dw tank17d dw boom1 dw boom2 dw boom3 dw boom4 dw booma1 dw booma2 dw booma3 dw booma4 dw tank21a dw tank21b dw tank21c dw tank21d dw tank23a dw tank23b dw tank23c dw tank23d dw tank25a dw tank25b dw tank25c dw tank25d dw tank27a dw tank27b dw tank27c dw tank27d dw tank22a dw tank22b dw tank22c dw tank22d dw tank24a dw tank24b dw tank24c dw tank24d dw tank26a dw tank26b dw tank26c dw tank26d dw tank28a dw tank28b dw tank28c dw tank28d dw tank31a dw tank31b dw tank31c dw tank31d dw tank33a dw tank33b dw tank33c dw tank33d dw tank35a dw tank35b dw tank35c dw tank35d dw tank37a dw tank37b dw tank37c dw tank37d dw tank32a dw tank32b dw tank32c dw tank32d dw tank34a dw tank34b dw tank34c dw tank34d dw tank36a dw tank36b dw tank36c dw tank36d dw tank38a dw tank38b dw tank38c dw tank38d dw 0 maxmapX dw 120 ; Logical maximum map dimensions maxmapY dw 75 lmapX dw 0 ; Logical top left corner lmapY dw 0 ; (lmapX, lmapY) pmaxX dw 40 ; physical screen maximums pmaxY dw 25 pmapX db 0 ; Physical top left corner of screen pmapY db 0 ; (pmapX, pmapY) wsizeX dw 20 ; Physical window size wsizeY dw 12 ; (pmapX+wsizeX,pmapY+wsizeY) jtable dw 50 dup(0) ; Screen jump table to Y axis mapjtable dw 100 dup(0) ; Map jump table to each Y axis map db 9000 dup(?) ; Map array, lists which tile ; appears where. ; Each entry is an index into ; the imagelist file scrbuf db 16200 dup(?) ; Screen swap buffer SEPDATA ENDS _TEXT SEGMENT BYTE PUBLIC 'CODE' PUBLIC _drawtile PUBLIC _inittables PUBLIC _regenscr PUBLIC _refreshscr PUBLIC _gotocga PUBLIC _setlogXY PUBLIC _setphyXY PUBLIC _setwindXY PUBLIC _setmapXY PUBLIC _capturescr PUBLIC _getmapXY _drawtile proc push bp mov bp,sp push ax push bx push si push di push ds push es push ax mov ax,OFFSET SEPDATA mov ds,ax mov es,ax xor ax,ax mov al,dh mov si,ax shl si,1 add si,OFFSET jtable mov di,[si] mov al,dl shl ax,1 add di,ax add di,OFFSET scrbuf pop ax push di mov si,ax mov ax,80-2 ; Even Lines movsb movsb add di,ax movsb movsb add di,ax movsb movsb add di,ax movsb movsb ; Odd lines pop di mov bx,02000h add di,bx movsb movsb add di,ax movsb movsb add di,ax movsb movsb add di,ax movsb movsb pop es pop ds pop di pop si pop bx pop ax pop bp ret _drawtile endp _inittables proc ; Initilize the map table to 0 thru 8 alternately push bp mov bp,sp push si push cx push ax push ds mov ax,OFFSET SEPDATA mov ds,ax mov si,OFFSET map mov cx,9000 mov ax,0 fillmap: mov [si],al inc si inc ax cmp ax,9 jnz contloop mov ax,0 contloop: loop fillmap ; Let's initilize the jump table mov si,OFFSET jtable mov ax,0 mov cx,25 filltable: mov [si],ax add ax,320 inc si inc si loop filltable ; Fill up Map jump table for Y coordinates mov si,OFFSET mapjtable mov ax,0 mov cx,75 ftable: mov [si],ax add ax,[maxmapX] inc si inc si loop ftable pop ds pop ax pop cx pop si pop bp ret _inittables endp _regenscr proc push bp mov bp,sp push si push ax push dx push bx push cx push di push es push ds cli mov ax,OFFSET SEPDATA mov ds,ax mov si,OFFSET mapjtable mov ax,[lmapY] shl ax,1 add si,ax mov dx,[si] add dx,[lmapX] mov si,dx add si,OFFSET map ; SI now points to the first tile to be displayed at (pmapX,pmapY) mov bx,[wsizeY] ; Do this Y times mov dh,[pmapY] ; init physical Y axis doY: mov cx,[wsizeX] ; Set up for nested loop mov dl,[pmapX] ; init physical X axis push si doX: xor ax,ax mov al,[si] ; Get first map char inc si shl ax,1 mov di,OFFSET imagelist add di,ax mov ax,[ds:di] ; Get image pointer into DX call _drawtile ; Draw the tile inc dl ; Do next X loop doX pop si add si,[maxmapX] inc dh dec bx jnz doY ; Do next Y sti pop ds pop es pop di pop cx pop bx pop dx pop ax pop si pop bp ret _regenscr endp _gotocga proc push bp mov bp,sp push ax push bx mov ah,0 mov al,4 int 10h mov ah,11 mov bl,0 mov bh,4 int 10h pop bx pop ax pop bp ret _gotocga endp _setlogXY proc push bp mov bp,sp push ds mov ax,OFFSET SEPDATA mov ds,ax mov ax,[bp+4] mov [lmapX],ax mov ax,[bp+6] mov [lmapY],ax pop ds pop bp ret _setlogXY endp _setphyXY proc push bp mov bp,sp push ds mov ax,OFFSET SEPDATA mov ds,ax mov ax,[bp+4] mov [pmapX],al mov ax,[bp+6] mov [pmapY],al pop ds pop bp ret _setphyXY endp _setwindXY proc push bp mov bp,sp push ds mov ax,OFFSET SEPDATA mov ds,ax mov ax,[bp+4] mov [wsizeX],ax mov ax,[bp+6] mov [wsizeY],ax pop ds pop bp ret _setwindXY endp _setmapXY proc push bp mov bp,sp push ds push si push dx mov ax,OFFSET SEPDATA mov ds,ax mov si,OFFSET mapjtable mov ax,[bp+6] shl ax,1 add si,ax mov dx,[si] add dx,[bp+4] mov si,dx add si,OFFSET map mov ax,[bp+8] cmp ax,0 jz nope mov [si],al nope: pop dx pop si pop ds pop bp ret _setmapXY endp _getmapXY proc push bp mov bp,sp push ds push si push dx mov ax,OFFSET SEPDATA mov ds,ax mov si,OFFSET mapjtable mov ax,[bp+6] shl ax,1 add si,ax mov dx,[si] add dx,[bp+4] mov si,dx add si,OFFSET map mov ah,0 mov al,[si] pop dx pop si pop ds pop bp ret _getmapXY endp _refreshscr proc push bp mov bp,sp push ds push es push si push di push cx cli mov ax,OFFSET SEPDATA mov ds,ax mov ax,0B800h mov es,ax mov si,OFFSET scrbuf mov cx,16192 mov di,0 rep movsb sti pop cx pop di pop si pop es pop ds pop bp ret _refreshscr endp _capturescr proc push bp mov bp,sp push ds push es push si push di push cx cli mov ax,OFFSET SEPDATA mov es,ax mov ax,0B800h mov ds,ax mov si,0 mov cx,16192 mov di,OFFSET scrbuf rep movsb sti pop cx pop di pop si pop es pop ds pop bp ret _capturescr endp _TEXT ENDS END