PUSH PSW

PUSH ACC

clr tr0 .
mov th0,#HIGH RELOAD
mov tl0,#LOW RELOAD

setb tr0

INC MSEC
MOV A,MSEC
CJNE A,#64H,CEASEND
MOV MSEC,#00H
INC SEC
MOV A,SEC
CJNE A,#3CH,ceasEND
MOV SEC,#00H
INC MIN
MOV A,MIN
CJNE A,#3CH,ceasEND
MOV MIN,#00H
INC ora


CEASEND: POP ACC
POP PSW

RETI