这个是实现（w+xy-z）/x编译时说除法溢出，不懂怎么改
DATA SEGMENT
X DB 01H
Y DB 04H
Z DB 04H
W DB 02H
RESULT DB ?
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START: MOV AX,DATA
MOV DS,AX
MOV AL,X
IMUL Y
MOV CX,AX
MOV AL,W
CBW
ADD AX,CX
MOV BX,Z
SUB AX,BX
IDIV X
MOV RESULT,AH
MOV RESULT+1,AL
MOV AH,4CH
INT 21H
CODE ENDS
END START
[最优解释]
DATA SEGMENT
X DB 01H
Y DB 04H
Z DB 04H
W DB 02H
RESULT DB ?
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:
MOV AX,DATA
MOV DS,AX
MOV AL,X
IMUL Y
MOV CX,AX
MOV AL,W
CBW
ADD AX,CX
xorbx,bx
MOV bl, Z
SUB AX,BX
IDIV X
MOV RESULT,AH
MOV RESULT+1,AL
MOV AH,4CH
INT 21H
CODE ENDS
END START
