DATA SEGMENT ;定义数据段
X DW 66
Y DW ?
DATA ENDS
CODE SEGMENT ;定义代码段
ASSUME CS:CODE,DS:DATA
START:
MOV AX,DATA
MOV DS,AX
MOV AX,X
CMP AX,0
JG ISPN
JZ ISZN
MOV Y,-1
JMP FINISH
ISPN: MOV Y,1
JMP FINISH
ISZN: MOV Y,0
FINISH:MOV AH,4CH
INT 21H
CODE ENDS
END START |
