compare.s

at9535下 模拟比较器的c语言编程 at9535下 模拟比较器的c语言编程

	.module compare.c
	.area text(rom, con, rel)
	.dbfile J:\AVRpractice\BOOK\Campare\compare.c
	.dbfunc e main _main fV
;              i -> <dead>
	.even
_main::
	.dbline -1
	.dbline 9
; //***************FileName:Capature.C***************//
; //***************ICCAVR V6.30编译*****************//
; 
; #include <io8535v.h>                 
; #define uchar unsigned char
; #define uint  unsigned int
; 
; void main(void)
; {uchar i;
	.dbline 10
;  DDRB=0xf0;                    //设置PB7输出，PB3~PB2输入
	ldi R24,240
	out 0x17,R24
	.dbline 11
;  PORTB=0x00;
	clr R2
	out 0x18,R2
	.dbline 12
;  ACSR=0x00;                    //模拟比较器使能
	out 0x8,R2
	rjmp L3
L2:
	.dbline 14
;  while(1)
;   {if((ACSR&0x20)==0x20)
	.dbline 14
	in R24,0x8
	andi R24,32
	cpi R24,32
	brne L5
	.dbline 15
;        PORTB=PORTB|0xf0;
	in R24,0x18
	ori R24,240
	out 0x18,R24
	rjmp L6
L5:
	.dbline 16
	in R24,0x18
	andi R24,15
	out 0x18,R24
L6:
	.dbline 16
L3:
	.dbline 13
	rjmp L2
X0:
	.dbline -2
	.dbline 17
;    else PORTB=PORTB&0x0f;}
; }
L1:
	.dbline 0 ; func end
	ret
	.dbsym l i 1 c
	.dbend