l4-73.asm

汇编经典例程,是学习微机原理的好帮手,包括循环 分支等结构

DATA SEGMENT
BUF  DW  3,1256H,0A768H,3412H
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE, DS:DATA
START: MOV AX, DATA
       MOV DS, AX
       MOV DI, OFFSET BUF
       MOV CX,[DI]
       DEC CX
L1:    MOV DX, CX
       MOV BH,0
L2:    ADD DI,2
       MOV AX, [DI]
       CMP AX, [DI+2]
       JBE CONT1
       XCHG AX, [DI+2]
       MOV [DI],AX
       MOV BH,1
CONT1:  LOOP L2
       CMP BH,0
       JE STOP 
       MOV CX, DX
       MOV DI, OFFSET BUF
       LOOP L1
STOP:  MOV AH,4CH
       INT 21H
CODE ENDS       
END START