main.s

AVR mega16系列单片机开发程序

	.module main.c
	.area vector(rom, abs)
	.org 4
	jmp _int0_isr
	.area text(rom, con, rel)
	.dbfile C:\DOCUME~1\Administrator\桌面\count\main.c
	.dbfunc e int0_isr _int0_isr fV
	.even
_int0_isr::
	st -y,R24
	in R24,0x3f
	st -y,R24
	.dbline -1
	.dbline 9
; 
; #include "config.h"
; 
; unsigned int i;
; unsigned char flag;
; 
; #pragma interrupt_handler int0_isr:2
; void int0_isr(void)
; {
	.dbline 10
;   flag = 1;
	ldi R24,1
	sts _flag,R24
	.dbline -2
L1:
	ld R24,y+
	out 0x3f,R24
	ld R24,y+
	.dbline 0 ; func end
	reti
	.dbend
	.dbfunc e init_devices _init_devices fV
	.even
_init_devices::
	.dbline -1
	.dbline 14
; }
; 
; void init_devices(void)
; {
	.dbline 15
;  CLI();                 //disable all interrupts
	cli
	.dbline 16
;  MCUCR = 0x00;
	clr R2
	out 0x35,R2
	.dbline 17
;  GICR  = 0x40;
	ldi R24,64
	out 0x3b,R24
	.dbline 18
;  TIMSK = 0x00;         //timer interrupt sources
	out 0x39,R2
	.dbline 19
;  SEI();                //re-enable interrupts
	sei
	.dbline -2
L2:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 23
; }
; 
; void main(void)
; {  
	.dbline 24
;   led_init();  
	xcall _led_init
	.dbline 25
;   init_devices(); 
	xcall _init_devices
	xjmp L5
L4:
	.dbline 28
;   
;    while(1)
;      { 
	.dbline 29
; 	 if(flag==1)  
	lds R24,_flag
	cpi R24,1
	brne L7
	.dbline 30
; 	   i++;
	lds R24,_i
	lds R25,_i+1
	adiw R24,1
	sts _i+1,R25
	sts _i,R24
L7:
	.dbline 31
	clr R2
	sts _flag,R2
	.dbline 32
	ldi R16,1
	ldi R17,0
	xcall _delay_ms
	.dbline 33
	lds R16,_i
	lds R17,_i+1
	xcall _display
	.dbline 34
L5:
	.dbline 27
	xjmp L4
X0:
	.dbline -2
L3:
	.dbline 0 ; func end
	ret
	.dbend
	.area bss(ram, con, rel)
	.dbfile C:\DOCUME~1\Administrator\桌面\count\main.c
_flag::
	.blkb 1
	.dbsym e flag _flag c
_i::
	.blkb 2
	.dbsym e i _i i