基于8086微机原理直流电机控制系统-设计资料

Posted 2021-05-15 Mr song song

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CODE    SEGMENT 'CODE' 
        ASSUME CS:CODE,SS:STACK,DS:DATA
        
IOCON	EQU 8006H
IOA     EQU 8000H
IOB     EQU 8002H
IOC     EQU 8004H

START:
        MOV AX, DATA
        MOV DS, AX

        MOV AX, STACK
        MOV SS, AX

        MOV AX, TOP
        MOV SP, AX
        
        
TEST_BU:MOV AL,82H
        MOV DX,IOCON
        OUT DX,AL
        NOP
        NOP
        NOP