sy.asm

手动扩展外部中断INT0、INT1

ORG 0000H
LJMP MIAN
MIAN: MOV R3,#30H
MOV GW,#0
MOV BW,#0
MOV SW,#0
MOV QW,#0
CLR C
MOV R6,#2
L1:MOV R7,#8
MOV A,R3
MOV R0,A
L0:MOV A,GW
ADDC A,GW
DA A
MOV GW,A
MOV A,BW
ADDC A,BW
DA A
MOV BW,A
MOV A,SW
ADDC A,SW
DA A
MOV SW,A
MOV A,QW
ADDC A,QW
DA A
MOV QW,A
MOV A,@R0
RLC A
MOV @R0,A
MOV A,GW
ADDC A,#0
DA A 
MOV GW,A
MOV A,BW
ADDC A,#0
DA A
MOV BW,A
MOV A,SW
ADDC A,#0
DA A
MOV SW,A
MOV A,QW
ADDC A,#0
DA A
MOV QW,A
DJNZ R7,L0
DEC R6
MOV A,R6
JZ EXIT
INC R3
LJMP L1
EXIT:SJMP $
GW EQU 20H
BW EQU 21H
SW EQU 22H
QW EQU 23H
END