void delay(unsigned char n)
{
#pragma asm
loop:	mov		R6,#02
loop1:	mov		R5,#187
loop2:  mov		R3,#248
more:	djnz	R3,more
		djnz	R5,loop2
		djnz	R6,loop1
		djnz    R7,loop
#pragma endasm
}