signbird

ORG 0000H LJMP MAIN ORG 0100H MAIN: MOV A,#0FEH MOV R5,#8 DEL: MOV R7,#200 DEL1: MOV R6,#250 DEL2: DJNZ R6,DEL2 DJNZ R7,DEL1 MOV P1,A RL A DJNZ R5,DEL