Implementing JUMP, PUSH, POP, IN & OUT in Assembly Program on 8086

data segment
abc dw 1101H
def dw 0025H
pqr dw 0011H
res dw ?
res1 dw ?
data ends
code segment
assume cs:code,ds:data
start:
mov ax,data
mov ds,ax
mov ax,abc
mov bx,def
mov cx,pqr
mov dx,0002H
jmp ma 
back:
push ax
push bx
push cx
pop cx
pop bx
pop ax
mov ax,abc
inc ax
mov abc,ax
mov bx,def
dec bx
mov def,bx
ma:
add ax,bx
mov res,ax
dec dx
jnz back
in ax,25H
out 30H,ax
mov res1,ax
int 3
code ends
end start

Output

C:\TASM>masm pushpop.asm
Microsoft (R) Macro Assembler Version 5.00
Copyright (C) Microsoft Corp 1981-1985, 1987.  All rights reserved.

Object filename [pushpop.OBJ]:
Source listing  [NUL.LST]:
Cross-reference [NUL.CRF]:

  50402 + 450254 Bytes symbol space free

      0 Warning Errors
      0 Severe  Errors

C:\TASM>link pushpop.obj

Microsoft (R) Overlay Linker  Version 3.60
Copyright (C) Microsoft Corp 1983-1987.  All rights reserved.

Run File [PUSHPOP.EXE]:
List File [NUL.MAP]:
Libraries [.LIB]:
LINK : warning L4021: no stack segment

C:\TASM>debug pushpop.exe
-g

AX=1818  BX=0024  CX=0011  DX=0000  SP=0000  BP=0000  SI=0000  DI=0000
DS=0B97  ES=0B87  SS=0B97  CS=0B98  IP=003B   NV UP EI PL ZR NA PE NC
0B98:003B CC            INT     3
-d 0B97:0000
0B97:0000  02 11 24 00 11 00 26 11-18 18 00 00 00 00 00 00   ..$...&.........
0B97:0010  B8 97 0B 8E D8 A1 00 00-8B 1E 02 00 8B 0E 04 00   ................
0B97:0020  BA 02 00 EB 17 90 50 53-51 59 5B 58 A1 00 00 40   ......PSQY[X...@
0B97:0030  A3 00 00 8B 1E 02 00 4B-89 1E 02 00 03 C3 A3 06   .......K........
0B97:0040  00 4A 75 E2 E5 25 E7 30-A3 08 00 CC E5 5D C3 90   .Ju..%.0.....]..
0B97:0050  55 8B EC 81 EC 84 00 C4-5E 04 26 80 7F 0A 00 74   U.......^.&....t
0B97:0060  3E 8B 46 08 8B 56 0A 89-46 FC 89 56 FE C4 5E FC   >.F..V..F..V..^.
0B97:0070  26 8A 47 0C 2A E4 40 50-8B C3 05 0C 00 52 50 E8   &.G.*.@P.....RP.
-q

Leave a Reply

Your email address will not be published. Required fields are marked *