?? ask.asm
字號:
SECOND EQU 30H
COUNT EQU 31H
ORG 00H
START: MOV SECOND,#00H
MOV COUNT,#00H
MOV DPTR,#TABLE
S1: MOV A,SECOND
MOV B,#10
DIV AB
MOVC A,@A+DPTR
MOV P0,A
MOV A,B
MOVC A,@A+DPTR
MOV P2,A
MOV TMOD,#01H
S2: MOV TH0,#(65536-50000)/256
MOV TL0,#(65536-50000) MOD 256
SETB TR0
JNB TF0,$
CLR TF0
INC COUNT
MOV A,COUNT
CJNE A,#20,S2
MOV COUNT,#00H
INC SECOND
MOV A,SECOND
CJNE A,#60,S1
LJMP START
TABLE: DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH
END
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