project2.asm

汇编小程序

         ORG 0000H
		 AJMP MAIN
		 ORG 0030H
MAIN:    MOV P0,#0FEH
         ACALL DELX
		 MOV P0,#0FFH
		 ACALL DELX
		 MOV P0,#0FEH
		 ACALL DELY
		 MOV P0,#0FFH
		 ACALL DELY
		 MOV P0,#0FEH
		 ACALL DELZ
		 MOV P0,#0FFH
		 ACALL DELZ
		 AJMP MAIN
DELX:    MOV R5,#02H
DELX1:   MOV R6,#0FFH
DELX2:   MOV R7,#0FFH
DELX3:   DJNZ R7,DELX3
         DJNZ R6,DELX2
		 DJNZ R5,DELX1
		 RET
DELY:    MOV R5,#08H
DELY1:   MOV R6,#0FFH
DELY2:   MOV R7,#0FFH
DELY3:   DJNZ R7,DELY3
         DJNZ R6,DELY2
		 DJNZ R5,DELY1
		 RET
DELZ:    MOV R5,#1FH
DELZ1:   MOV R6,#0FFH
DELZ2:   MOV R7,#0FFH
DELZ3:   DJNZ R7,DELZ3
         DJNZ R6,DELZ2
		 DJNZ R5,DELZ1
		 RET 
		 END