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I need to draw (print) a stack and queue using assembly language. Can anyone suggest me the code using VGA graphics?

I tried to modify the code of drawing(printing) a rectangle. Here's what I have done:

DATA SEGMENT H DW 150 W DW 30 K DW 150 TEMP DW 0000 TEMP2 DW 0000 TEMP3 DW 0000 DATA ENDS CODE SEGMENT ASSUME CS:CODE,DS:DATA START :MOV AX,DATA MOV DS,AX START1: MOV AH,00H INT 16H CMP AL,61H ;press a to close JZ END1 CALL RECT RECT PROC MOV AH,0 MOV AL,12H INT 10H MOV CX,W MOV DX,H MOV TEMP2,CX MOV BX,CX ADD BX,DX MOV TEMP,BX MOV AX,0C02H BACK: INT 10H INC CX CMP CX,TEMP ;---top JNZ BACK MOV AX,0C30H BACK1:INT 10H INC DX CMP DX,CX ;--ver right JNZ BACK1 MOV AX,0C02H BACK2:INT 10H DEC CX CMP CX,TEMP2 ;--bottom JNZ BACK2 MOV AX,0C02H BACK3:INT 10H DEC DX CMP DX,CX ;--left JNZ BACK3 MOV AH,07H INT 21H RET RECT ENDP END1:MOV AH,4CH INT 21H CODE ENDS END START

My already coded stack program is:

data segment str1 db 0Ah, 0Dh,"CHOOSE OPERATION", 0Ah, 0Dh, '$' str2 db 0Ah, 0Dh,"P FOR PUSH",0ah,0dh,'$' str3 db 0A, 0Dh,"R FOR POP",0ah,0dh,'$' str8 db 0Ah, 0Dh,"D FOR DISPLAY",0ah,0dh,'$' str9 db 0Ah, 0Dh,"Any key for exit",0ah,0dh,'$' str4 db 0Ah, 0Dh,"Enter value to be pushed",0ah,0dh,'$' str5 db 0Ah, 0Dh,"Overflow",0ah,0dh,'$' str6 db 0Ah, 0Dh,"Do you want to continue? (y/n)",0ah,0dh,'$' str7 db 0Ah, 0Dh,"Empty stack",0ah,0dh,'$' str10 db 0Ah, 0Dh,"Popping..$" choose db 1 dup(0) top db 1 dup(0) temp db 1 dup(0) t db 1 dup(0) array db 100 dup(0) maxsize db 1 dup(0) data ends code segment assume cs:code, ds:data start: mov ax,data mov ds,ax mov top,00 mov temp,00 mov maxsize,10 lea si, array lea di, array menu: mov dx, offset str1 mov ah,09h int 21h mov dx, offset str2 mov ah,09h int 21h mov dx, offset str3 mov ah,09h int 21h mov dx, offset str8 mov ah,09h int 21h mov dx, offset str9 mov ah,09h int 21h mov ah,01 int 21h cmp al, 'p' je p cmp al, 'r' je r cmp al, 'd' je d jmp e p: cmp top,10 jne x mov dx, offset str5 mov ah,09h int 21h jmp menu x: mov dx, offset str4 mov ah,09h int 21h mov ah,01 int 21h mov [si],al inc si inc top mov dx, offset str6 mov ah,09h int 21h mov ah,01 int 21h cmp al, 'y' je p jmp menu r: cmp top,00 jne y mov dx, offset str7 mov ah,09h int 21h jmp menu y: mov dx, offset str10 mov ah,09h int 21h dec si dec top mov dl,[si] mov ah,02 int 21h mov dx, offset str6 mov ah,09h int 21h mov ah,01 int 21h cmp al, 'y' je r jmp menu d: cmp top,00 jne zz mov dx, offset str7 mov ah,09h int 21h jmp menu zz: mov bl,top mov t,bl mov bx,si z: dec si mov dl,[si] mov ah,02 int 21h mov dl, 32 mov ah,02 int 21h dec t cmp t,00 jne z mov si,bx jmp menu e: int 3 code ends end start end
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  • Looks like TASM? I noticed you didn't define a stack - might be a good idea. What are your problems, what errors? What does the program actually do? And what is it expected to do? Commented Sep 25, 2015 at 5:47
  • Yes it is TASM. I've made a simple stack program with basic push, pop and display functions. I need to represent it in a visual stack using VGA graphics mode. Commented Sep 25, 2015 at 5:50
  • Oh I meant you never defined a stack in the program itself ;-). Usually TASM programs start with a MODEL directive like MODEL SMALL followed by a STACK directive. Commented Sep 25, 2015 at 5:54
  • @MichaelPetch there are no errors as such.All I need to do is to print a stack on VGA graphics output screen. Commented Sep 25, 2015 at 5:55
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    "I need to draw (print) a stack and queue using assembly language" doesn't qualify as a good problem description. It's far too vague, and it's unclear exactly what part of that you're having trouble with. Please ask a more specific question. Commented Sep 25, 2015 at 5:58
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