.module main.c
	.area text(rom, con, rel)
	.dbfile E:\ICCAVR\project\AVRMEG~2\icc\006-INT0-LED\main.c
	.dbfunc e delay_ms _delay_ms fV
;              a -> R20
;              b -> R22
;              i -> R16
	.even
_delay_ms::
	xcall push_gset2
	.dbline -1
	.dbline 17
; /*
; 實驗六：
; 	INT0中斷實驗。
; 	1、按鍵中斷實驗。低電平中斷，在中斷中改變PB1電平狀態。
; 	2、內部1 M晶振，程序采用單任務方式，軟件延時。
; 	3、進行此實驗請插上JP1的所有8個短路塊，JP7(LED_EN)短路塊。
; 
; 	AVR  mega16學習板
; 	www.iccavr.com
; 	2006-03-23
; */
; 
; #include "iom16v.h"
; #include <macros.h>
; 
; /*延時函數*/
; void delay_ms(unsigned char i) {
	.dbline 20
	ldi R20,1
	xjmp L5
L2:
	.dbline 20
; 
; 	unsigned char a, b;
; 	for (a = 1; a < i; a++) {
	.dbline 21
	ldi R22,1
	xjmp L9
L6:
	.dbline 21
	.dbline 22
	.dbline 23
L7:
	.dbline 21
	inc R22
L9:
	.dbline 21
	tst R22
	brne L6
	.dbline 24
L3:
	.dbline 20
	inc R20
L5:
	.dbline 20
	cp R20,R16
	brlo L2
	.dbline -2
L1:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r a 20 c
	.dbsym r b 22 c
	.dbsym r i 16 c
	.dbend
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 27
; 		for (b = 1; b; b++) {
; 			;
; 			}
; 		}
; }
; 
; void main(void) {
	.dbline 29
; 
; 	DDRA = 0x00;				/*方向輸入*/
	clr R2
	out 0x1a,R2
	.dbline 30
; 	PORTA = 0xFF;				/*打開上拉*/
	ldi R24,255
	out 0x1b,R24
	.dbline 31
; 	DDRB = 0xFF;				/*方向輸出*/
	out 0x17,R24
	.dbline 32
; 	PORTB = 0xFF;				/*電平設置*/
	out 0x18,R24
	.dbline 33
; 	DDRC = 0x00;
	out 0x14,R2
	.dbline 34
; 	PORTC = 0xFF;
	out 0x15,R24
	.dbline 35
; 	DDRD = 0x00;
	out 0x11,R2
	.dbline 36
; 	PORTD = 0xFF;
	out 0x12,R24
	.dbline 38
; 
; 	GICR |= (1 << INT0);
	in R24,0x3b
	ori R24,64
	out 0x3b,R24
	.dbline 39
; 	SEI();
	sei
	xjmp L12
L11:
	.dbline 41
	.dbline 42
	ldi R16,200
	xcall _delay_ms
	.dbline 43
	ldi R24,1
	in R2,0x18
	eor R2,R24
	out 0x18,R2
	.dbline 44
L12:
	.dbline 41
	xjmp L11
X0:
	.dbline -2
L10:
	.dbline 0 ; func end
	ret
	.dbend
	.area vector(rom, abs)
	.org 4
	jmp _Int0
	.area text(rom, con, rel)
	.dbfile E:\ICCAVR\project\AVRMEG~2\icc\006-INT0-LED\main.c
	.dbfunc e Int0 _Int0 fV
;              i -> R16,R17
	.even
_Int0::
	st -y,R2
	st -y,R16
	st -y,R17
	st -y,R24
	st -y,R25
	in R2,0x3f
	st -y,R2
	.dbline -1
	.dbline 48
; 
; 	while (1) {
; 		delay_ms(200);
; 		PORTB ^= (1 << 0);		/*PB0電平取反*/
; 		}
; }
; 
; #pragma interrupt_handler Int0: 2		/*外部中斷INT0*/
; void Int0(void) {
	.dbline 50
; 	unsigned int i;
; 	PORTB ^= (1 << 1);			/*PB1電平取反*/
	ldi R24,2
	in R2,0x18
	eor R2,R24
	out 0x18,R2
	.dbline 51
; 	i = 1000;					/*加入廷時防按鍵顫動*/
	ldi R16,1000
	ldi R17,3
L15:
	.dbline 52
L16:
	.dbline 52
; 	while (--i);
	movw R24,R16
	sbiw R24,1
	movw R16,R24
	cpi R16,0
	cpc R16,R17
	brne L15
X1:
L18:
	.dbline 53
L19:
	.dbline 53
; 	while ((PIND & (1 << PD2)) == 0);		/*等待按鍵松開*/
	sbis 0x10,2
	rjmp L18
	.dbline 54
; 	i = 1000;					/*加入廷時防按鍵顫動*/
	ldi R16,1000
	ldi R17,3
L21:
	.dbline 55
L22:
	.dbline 55
; 	while (--i);
	movw R24,R16
	sbiw R24,1
	movw R16,R24
	cpi R16,0
	cpc R16,R17
	brne L21
X2:
	.dbline -2
L14:
	ld R2,y+
	out 0x3f,R2
	ld R25,y+
	ld R24,y+
	ld R17,y+
	ld R16,y+
	ld R2,y+
	.dbline 0 ; func end
	reti
	.dbsym r i 16 i
	.dbend