接收(调试通过）垃圾.asm

红外接受的发送程序载波３８k

	org 0000h
	ajmp start
	org 0003h
	ajmp int_outside
	org 0040h
start:
	mov sp,#60h
	mov r2,#0	
	mov r4,#0	;r4代表接收到的字节数
	mov a,#0
	mov p1,#00111111b
	setb p3.2
	setb p3.3
	clr p3.7
	setb ea
	setb it0
	setb ex0
hhh:
	cjne r2,#8,hhh
	mov r2,#0
	mov p1,a
	mov a,#0
	ajmp hhh
	
int_outside:				;外中断
	push psw
        nop
        nop
	rl a
	mov r3,#0
test:					;5条指令数数
	jb p3.3,out
	inc r3
	ajmp test
out:
	cjne r3,#70,j70
j70:
	jnc up70
	ajmp error
up70:
	cjne r3,#110,j110
j110:
	jnc up110
	ajmp exit
up110:
	cjne r3,#140,j140
j140:
	jnc up140
	ajmp error
up140:
	cjne r3,#180,j180
j180:
	jnc up180	
	inc a
	ajmp exit
up180:
	ajmp error
exit:
	inc r2
	ajmp last
error:
	rr a
last:
	pop psw	
	reti

	end