sxf.asm

来自「单片机实验程序-13种-17.4M-pdf.rar」· 汇编 代码 · 共 44 行

        ORG 0000H
        AJMP START
        ORG 001BH
        LJMP CZ
        ORG 0030H
START:  MOV TH1,#0FCH
        MOV TL1,#18H
        SETB EA
        SETB ET1
        SETB TR1
        AJMP $
  CZ:  
        
        MOV A,7AH
        ADD A,#1
        MOV 7AH,A 
        CJNE A,#10,XS
        MOV A,7BH
        ADD A,#1
        CJNE A,#10,XS
        MOV A,7CH
        ADD A,#1
        MOV 7CH,A
        LCALL XS
        MOV TH1,#0FCH
        MOV TL1,#18H
        SETB EA
        SETB ET1
        SETB TR1
        RETI
  XS:   MOV DPTR,#DATAT
        MOV A,7CH
        MOVC A,@A+DPTR
        MOV P1,A
        CPL P3.5
        RET
 DATAT: DB   3fh, 06h, 5bh, 4fh, 66h, 6dh, 7dh, 07h
        DB   7fh, 6fh, 77h, 7ch, 39h, 5eh, 79h, 71h
        DB   00H