查表程序分析
时间:10-02
整理:3721RD
点击:
ORG 60H
MOV A,R0
ANL A,#0FH
ADD A,#02H
MOVC A,@A+PC
MOV R0,A
RET
TAB:DB 30HM31HM32H
DB 33H,34H,35H
DB 36H,37H,38H
DB39H,41H,42H
DB 43H,44H,45H,46H
MOVC A,@A+PC与表格首地址相隔2个字节
请问这个怎么看出来的,还望高手指点
MOV A,R0
ANL A,#0FH
ADD A,#02H
MOVC A,@A+PC
MOV R0,A
RET
TAB:DB 30HM31HM32H
DB 33H,34H,35H
DB 36H,37H,38H
DB39H,41H,42H
DB 43H,44H,45H,46H
MOVC A,@A+PC与表格首地址相隔2个字节
请问这个怎么看出来的,还望高手指点