wbzd.asm

汇编语言开发的各种实用程序

          ORG    00000H
		  LJMP   START
		  ORG    00003H
		  LJMP   INT0X
		  ORG    0030H
START:    MOV    SP,#5FH
          MOV    P1,0FFH
		  MOV    P3,0FFH
		  SETB   EA
		  SETB   EX0
		  LJMP   $
INT0X:    PUSH   ACC
          PUSH   PSW
		  CPL    P1.0
		  POP    PSW
		  POP    ACC
		  RETI 
		  
		  END