“Kompyuter injiniringi” fakult ti

Dastur matni quyidagicha:

;add16.asm

; 10 lik sanoq sistemasida ikki son yig`indisini hisoblash

.model tiny

.code

org 100h

start:

mov AL,CS:P1+1

add AL,CS:P2+1

aaa

mov CS:SUM+1,AL

mov AL,CS:P1

adc AL,CS:P2

aaa

mov CS:SUM, AL

add BYTE PTR CS:SUM,48

add BYTE PTR CS:SUM+1,48

mov DX, OFFSET SUM

P1   DB '39'

P2   DB '12'

SUM  DB '  ', 13, 10, '$'

mov ah,9

int 21H

ret

END start

Endi MS DOS buyruqlar satrida kompilyatsiyalashni amalga oshiramiz. Natija com-

fayldan iborat bo‘ladi.

Kompilyatsiyalash (TASM da):

tasm add16.asm

tlink /t /x add16.obj

Dastur natijasi quyidagicha bo‘ladi:

---

44

Endi xuddi shu amalni bajaradigan dasturni 32-bitli rejimda tuzishga harakat qilamiz.

Masala tushunarli bo‘lishi uchun bunda ham 39 va 12 sonlarining yig‘indisini hisoblash

dasturini tuzamiz.

Dastur matni quyidagicha:

;add32.asm

.386

.model  flat, stdcall

option  casemap:none

include \masm32\include\windows.inc

include \masm32\include\user32.inc

include \masm32\include\kernel32.inc

includelib

\masm32\lib\user32.lib

includelib

\masm32\lib\kernel32.lib

BSIZE equ 15

.data

ifmt  BYTE 

"%d",00

stdout   DWORD ?

cWritten DWORD ?

.data?

buf 

BYTE  

BSIZE dup(?)

.code

start:

invoke  GetStdHandle, STD_OUTPUT_HANDLE

mov stdout, eax

mov eax,39

add eax,12

invoke  wsprintf, ADDR buf, ADDR ifmt,eax

invoke WriteConsoleA, stdout, ADDR buf, BSIZE, ADDR cWritten,NULL

invoke ExitProcess, 0

end start