jieshou.asm

这是我编写的一部分

  ORG  0000H
RESET:  JMP MAIN
   ORG 0070H
 
   ORG 0080H
   LJMP RSINT
   ORG 0100H
MAIN: MOV SP,#60H
  ACALL RE
 
   RET
RE:
         CLR P1.0
         SETB P1.1
          ANL TMOD,#0FH
           ORL TMOD,#10H
           MOV TL1,#0FDH
           MOV TH1,#0FDH
           MOV PCON,#00H
           SETB EA
           SETB ET1
           SETB ES
           SETB PT1
           CLR PS
           SETB TR1
           MOV SCON,#50H
           SETB B.0
           
           

  
        
   
   RSINT: PUSH DPL
           PUSH DPH
           PUSH A
           MOV A,R0
           PUSH  A
           JNB  B.0,RETURN
         
  MOV R0,#80H
      DATA1: MOV A,SBUF

               INC R0
               MOV  @R0,A
               CJNE R0,#84H,DATA1
               CLR RI
               CLR ES
               CLR ET1
               CLR TI
               SETB F0
               AJMP RETURN
      RETURN:POP A
             MOV R0,A
              POP A
             POP DPH
             POP DPL
               RET
               END