exp71.asm

来自「汇编语言 参考书 包含作业与答案 从入门到精通 通俗易懂」· 汇编 代码 · 共 83 行

STACK   SEGMENT  STACK
        DW      100 DUP(?)
STACK   ENDS

DATA1   SEGMENT
X       DB      ?
Y       DB      ?
RESULT  DW      ?
DATA1   ENDS

CODE1   SEGMENT
        ASSUME  CS:CODE1,DS:DATA1,SS:STACK

GETNUM  MACRO
        MOV     AH,1
        INT     21H
        SUB     AL,30H
        ENDM

MULTIPLY MACRO bNUM1,bNUM2
        MOV     AL,bNUM1
        MOV     BL,bNUM2
        MUL     BL
        ENDM

DIVIDE  MACRO   wNUM1,wNUM2
        MOV     AX,wNUM1
        MOV     BX,wNUM2
        XOR     DX,DX
        DIV     BX
        ENDM

DISPNUM MACRO
        PUSH    DX
        MOV     AH,2
        MOV     DL,AL
        OR      DL,30H
        INT     21H
        POP     DX
        ENDM

MAIN    PROC
        MOV     AX,DATA1
        MOV     DS,AX

        GETNUM   ;AL=X
        MULTIPLY AL,10
        MOV      X,AL
        GETNUM
        ADD     X,AL    ;X=??

        GETNUM   ;AL=Y
        MULTIPLY AL,10
        MOV      Y,AL
        GETNUM
        ADD     Y,AL    ;Y=??

        MULTIPLY X,Y
        MOV     RESULT,AX

        DIVIDE  AX,10000
        DISPNUM

        DIVIDE  AX,1000
        DISPNUM

        DIVIDE  AX,100
        DISPNUM

        DIVIDE  AX,10
        DISPNUM

        MOV     AL,DL
        DISPNUM

        MOV     AX,4C00H
        INT     21H
MAIN    ENDP

CODE1   ENDS
        END     MAIN