sesh.s

一个关于AVR单片机的例程

	.module sesh.c
	.area text(rom, con, rel)
	.dbfile D:\AVR与虚拟仪器光盘\教程与范例代码\LED应用\跑马灯\sesh.c
	.dbfunc e port_init _port_init fV
	.even
_port_init::
	.dbline -1
	.dbline 9
; //ICC-AVR application builder : 2007-5-13 15:07:31
; // Target : M32
; // Crystal: 7.3728Mhz
; 
; #include <iom32v.h>
; #include <macros.h>
; 
; void port_init(void)
; {
	.dbline 10
;  PORTA = 0x00;
	clr R2
	out 0x1b,R2
	.dbline 11
;  DDRA  = 0x00;
	out 0x1a,R2
	.dbline 12
;  PORTB = 0x00;
	out 0x18,R2
	.dbline 13
;  DDRB  = 0xff;
	ldi R24,255
	out 0x17,R24
	.dbline 14
;  PORTC = 0x00; 
	out 0x15,R2
	.dbline 15
;  DDRC  = 0x00;
	out 0x14,R2
	.dbline 16
;  PORTD = 0x00;
	out 0x12,R2
	.dbline 17
;  DDRD  = 0x00;
	out 0x11,R2
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e init_devices _init_devices fV
	.even
_init_devices::
	.dbline -1
	.dbline 22
; }
; 
; //call this routine to initialize all peripherals
; void init_devices(void)
; {
	.dbline 24
;  //stop errant interrupts until set up
;  CLI(); //disable all interrupts
	cli
	.dbline 25
;  port_init();
	xcall _port_init
	.dbline 27
; 
;  MCUCR = 0x00;
	clr R2
	out 0x35,R2
	.dbline 28
;  GICR  = 0x00;
	out 0x3b,R2
	.dbline 29
;  TIMSK = 0x00; //timer interrupt sources
	out 0x39,R2
	.dbline 30
;  SEI(); //re-enable interrupts
	sei
	.dbline -2
L2:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 35
;  //all peripherals are now initialized
; }
; 
; void main(void)
; {
	.dbline 36
; init_devices();
	xcall _init_devices
	xjmp L5
L4:
	.dbline 38
	.dbline 39
	sbi 0x18,0
	.dbline 40
L5:
	.dbline 37
	xjmp L4
X0:
	.dbline -2
L3:
	.dbline 0 ; func end
	ret
	.dbend