带定时报时功能的数字钟源程序

电子时钟汇编程序:
ORG 0000H
LJMP MAIN
ORG 0003H
LJMP INTA
ORG 000BH
LJMP SEV1
ORG 0013H
LJMP INTB
ORG 001BH
LJMP SEV2
ORG 0030H
MAIN:MOV SP,#60H
MOV A,#00H
MOV 30H,A
MOV 31H,A
MOV 32H,A
MOV 33H,#0CH
MOV 34H,A
MOV 35H,A
MOV 44H,#80H
MOV 45H,#40H
MOV 46H,#20H
MOV 47H,#10H
CLR RS0
CLR RS1
MOV R2,#0
MOV R3,#0
MOV R4,#0
MOV R5,#12H
MOV TMOD,#11H
MOV TH1,#3CH
MOV TL1,#0B0H
MOV TH0,#0ECH
MOV TL0,#78H
MOV IP,#08H
MOV TCON,#50H
MOV IE,#8FH
LOP:MOV B,#10
MOV A,33H
DIV AB
MOV 40H,A
MOV 41H,B
MOV B,#10
MOV A,32H
DIV AB