main.s

学习AVR单片机的基础实验程序 适合初学者学习提高

	.module main.c
	.area text(rom, con, rel)
	.dbfile D:\AVR\我的程序\外部中断0实验/cfg.h
	.dbfunc e delay_ms _delay_ms fV
;              i -> R20,R21
;           time -> R16,R17
	.even
_delay_ms::
	xcall push_gset1
	.dbline -1
	.dbline 10
; /***********************************
; *实验目的：熟悉外部中断编程
; *设    计：萧联珠
; *日    期：2007-11-23
; ************************************/
; #include <iom16v.h>
; #include "cfg.h"
; 
; void main()
; {
	.dbline 12
;   port_init();
;   INT0_init();   /*外部中断初始化*/
	xjmp L5
L2:
	.dbline 13
	clr R20
	clr R21
L6:
	.dbline 13
L7:
	.dbline 13
	subi R20,255  ; offset = 1
	sbci R21,255
	.dbline 13
	cpi R20,232
	ldi R30,3
	cpc R21,R30
	brlt L6
L3:
	.dbline 12
	subi R16,1
	sbci R17,0
L5:
	.dbline 12
	clr R2
	clr R3
	cp R2,R16
	cpc R3,R17
	brlt L2
	.dbline -2
L1:
	xcall pop_gset1
	.dbline 0 ; func end
	ret
	.dbsym r i 20 I
	.dbsym r time 16 I
	.dbend
	.dbfunc e port_init _port_init fV
	.even
_port_init::
	.dbline -1
	.dbline 18
;   
;   while(1)
;   {
;    display();
;   }
; }
	.dbline 19
; 
	ldi R24,255
	out 0x17,R24
	.dbline 20
; 
	out 0x18,R24
	.dbline 22
; 
; 
	cbi 0x11,2
	.dbline 23
; 
	sbi 0x12,2
	.dbline -2
L10:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e display _display fV
;              i -> R20
	.even
_display::
	xcall push_gset1
	.dbline -1
	.dbline 28
; 
; 
; 
; 
; 
	.dbline 30
; 
; 
	clr R20
	xjmp L15
L12:
	.dbline 31
	.dbline 32
	ldi R16,1
	mov R17,R20
	xcall lsl8
	mov R2,R16
	com R2
	out 0x18,R2
	.dbline 33
	ldi R16,100
	ldi R17,0
	xcall _delay_ms
	.dbline 34
L13:
	.dbline 30
	inc R20
L15:
	.dbline 30
	cpi R20,8
	brlo L12
	.dbline -2
L11:
	xcall pop_gset1
	.dbline 0 ; func end
	ret
	.dbsym r i 20 c
	.dbend
	.dbfunc e INT0_init _INT0_init fV
	.even
_INT0_init::
	.dbline -1
	.dbline 39
; 
; 
; 
; 
; 
; 
; 
; 
; 
	.dbline 40
; 
	ldi R24,128
	out 0x3f,R24
	.dbline 41
; 
	in R24,0x35
	andi R24,252
	out 0x35,R24
	.dbline 42
; 
	ldi R24,64
	out 0x3b,R24
	.dbline -2
L16:
	.dbline 0 ; func end
	ret
	.dbend
	.area vector(rom, abs)
	.org 4
	jmp _int0
	.area text(rom, con, rel)
	.dbfile D:\AVR\我的程序\外部中断0实验/cfg.h
	.dbfunc e int0 _int0 fV
;              i -> R20
	.even
_int0::
	xcall push_lset
	xcall push_gset1
	.dbline -1
	.dbline 48
; 
; 
; 
; 
; 
; 
	.dbline 50
; 
; 
	ldi R20,8
	xjmp L21
L18:
	.dbline 51
	.dbline 52
	mov R17,R20
	subi R17,1
	ldi R16,1
	xcall lsl8
	mov R2,R16
	com R2
	out 0x18,R2
	.dbline 53
	ldi R16,100
	ldi R17,0
	xcall _delay_ms
	.dbline 54
L19:
	.dbline 50
	dec R20
L21:
	.dbline 50
	clr R2
	cp R2,R20
	brlo L18
	.dbline -2
L17:
	xcall pop_gset1
	xcall pop_lset
	.dbline 0 ; func end
	reti
	.dbsym r i 20 c
	.dbend
	.dbfile D:\AVR\我的程序\外部中断0实验\main.c
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 10
	.dbline 11
	xcall _port_init
	.dbline 12
	xcall _INT0_init
	xjmp L24
L23:
	.dbline 15
	.dbline 16
	xcall _display
	.dbline 17
L24:
	.dbline 14
	xjmp L23
X0:
	.dbline -2
L22:
	.dbline 0 ; func end
	ret
	.dbend