IC解密MCU瑞萨RH580单片机资料手册
IC解密【编程】
CODE SEGMENT
ASSUME CS:CODE
ORG 1200H
START:
MOV DX,8000H
IN AL,DX
TEST AL,01H
JNZ Y1 /测试AL是否等于01H，若不等于，则跳入循环Y1/
TEST AL,02H
JNZ Y2 /测试AL是否等于02H，若不等于，则跳入循环Y2/
MOV DX,9000H
MOV AL,0FFH /点亮所有的灯/
OUT DX,AL
JMP START
Y1:TEST AL,02H
JNZ Y3 /测试AL是否等于02H，若不等于，则跳入循环Y3/
MOV DX,9000H
MOV AL,0AAH /点亮奇数号灯/
OUT DX,AL
JMP START
Y2:MOV DX,9000H
MOV AL,55H /点亮偶数号灯/
OUT DX,AL
JMP START
Y3:MOV DX,9000H
MOV AL,00H /所有灯全灭/
OUT DX,AL
JMP START
CODE ENDS
END START
芯片解密
