ad7822.asm

有限冲击响应滤波器

;	.include MMRegs.h
	.global	_READAD7822
	.text
	.mmregs

_READAD7822:

   	nop
	andm    #0fffbh,pmst
	stm		3000h,ar1  
	rpt     #100h
	st		00h,*ar1+
	nop
loop1:
	
	stm     3000h,ar1
	stm     100h,ar2
    
loop0:

	bc loop0,nbio
 	portr	800ch,*ar1
 	andm  #00ffh,*ar1+
here1:

	bc here1,bio	
	banz loop0,*ar2-
	ret
    nop
    nop
    .end