一个简单的汇编程序:
.MODEL SMALL
.STACK 64
.DATA
DATA1 DB 52H
DATA2 DB 29H
SUM DB 0
.CODE
MAIN PROC FAR
MOV AX, @DATA
MOV DS, AX
;MOV DS, @DATA ; No segment register can be loaded directly
MOV AL, DATA1
MOV BL, DATA2
ADD AL, BL
MOV SUM, AL
MOV AH, 4CH ; With line 16 & 17, there will be "PROGRAM HAS RETURNED CONTROL TO THE OPERATING SYSTEM"
INT 21H ; Else there will be "the emulator is halted."
MAIN ENDP
ENDP MAIN
实现5个BYTES相加:
PAGE 60, 132
TITLE TEST002 (COM) PURPOSE: ADDS 5 BYTES OF DATA
.MODEL SMALL
.STACK 64
;-----------
.DATA
DATA_IN DB 25H, 12H, 15H, 1FH, 2BH
SUM DB