project.asm

汇编小程序

ORG 000H
AJMP MAIN
ORG 0030H
MAIN:  MOV P0,#0FEH
ACALL DEL
MOV P0,#0FFH
ACALL DEL
MOV P0,0FFH
ACALL DEL
AJMP MAIN
DEL:   MOV  R5,#04H
DEL1:  MOV  R6,#0FFH
DEL2:  MOV  R7,#0FFH
DEL3:  DJNZ R7,DEL3
       DJNZ R6,DEL2
	   DJNZ R5,DEL1
	   RET
	   END