安徽工程大学课程设计（论文）
RL A
MOV R2,A AJMP COLUM KERR:MOV B,#0FFH
LCALL WRITE_LED RET
KEYSF:LCALL WRITE_LED MOV DPTR,#K8155A MOV A,#00H
MOVX @DPTR,A INC DPTR INC DPTR
MOVX A,@DPTR CPL A
ANL A,#03H
CJNE A,#00H,KEYSF RET ARM:CLR C
MOV R0,#40H MOV A,@R0 SUBB A,SET_VH JC END_CON_T INC R0
MOV A,@R0 SUBB A,SET_VL JC END_CON_T BAIDOWN_T:CLR P1.0 SETB P1.1
LCALL DELAY10 END_CON_T:SETB P1.0 CLR P1.1 RET
OFF_LED: MOV 5FH,#00H MOV 5EH,#00H MOV 5DH,#00H MOV 5CH,#00H
LCALL WRITE_LED RET
INIT_8155: PUSH DPL
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