donald.asm

用汇编处理dat图片文件

;
; Lese Dir. Sektor
;
VNAM	equ 2Bh  ; bei FD
; VNAM  equ 47h ; bei HD

STAPEL	segment stack 'stack'
	dw	100 dup (?)
STAPEL	ends

DATEN	segment
assume  cs:DATEN,ds:DATEN
PUFFER	db	1024 dup (?)
VOLNAME	db 	'Der Laufwerksname ist $'
name1   db     'student'
laenge  equ     $-name1    
bild    db      'D:\RSTlab-3\daten.dat$' 
fcode   dw      0
buffer  db      64*1000 dup(?)
Pixel   db      ?
VGAPAL  equ     3c8h
DATEN	ends


PROG	segment
	assume   cs:PROG, ds:DATEN, ss:STAPEL

START:	mov	ax, DATEN
	mov	ds, ax
        
        mov     ax,0013h
        int     10h     
   
	mov	ax, 0201h	; lese 1 Sektor
;	mov	dl, 80h		; Laufwerk C:
	mov	dl, 0		; Laufwerk A:
;	mov	dh, 1		; HD: Kopf 0
 	mov	dh, 0		; FD: Kopf 0
	mov	ch, 0		; Zyl 0
	mov	cl, 1		; Spur 0
	mov	bx, offset PUFFER
	int	13h

        mov     cx,00ffh
farb:   mov     dx,VGAPAL
        mov     ax,cx
        out     dx,al
        inc     dx
        shr     ax,2  
        out     dx,al
        out     dx,al
        out     dx,al
        loop    farb


        
;open
        mov     ax, 3d02h
        mov     dx, offset bild
        int     21h
        jc exit

;read
        mov     fcode, ax
        mov     ah, 3Fh
        mov     bx, fcode
        mov     cx, 64*1000
        mov     dx, offset buffer
        int     21h
        jc exit

;close
        mov     ah, 3Eh
        mov     bx, fcode
        int     21h
        jc exit
      
        mov    bx, 0a000h
        mov    es, bx
        mov    di, 0
        mov    si, offset buffer
        mov    cx, 320*200
        cld
        repz movsb


        mov    ah,13h
        mov    bp,seg name1
        mov    es,bp
        mov    bp,offset name1
        mov    al,0
        mov    cx,laenge
        mov    dh,0
        mov    dl,0
        mov    bh,0
        mov    bl,40h
        int    10h
        
        mov    ah, 00h
        int    16h
        mov    ax, 0003h
        int    10h
exit:   mov    ah, 4ch
        int    21h

	mov	ah, 09h
	mov	dx, offset VOLNAME
	int 	21h

	mov	ah, 09h
	mov	dx, offset PUFFER+VNAM
	mov	byte ptr [PUFFER+VNAM+11],'$'
	int 	21h

	mov	ax, 4c00h
	int	21h

PROG	ends
	end	START