Microcontrollers / homework /shiyan2.asm
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ORG 0000H
MAIN: MOV A,20H
ANL A,#0FH
LCALL PROCESS
MOV 21H,A
SJMP $
PROCESS: CJNE A,#10,ASD
ASD: JC ZXC
ADD A,#37H
RET
ZXC: ADD A,#30H
RET
END