ff.s

用Atmega16实现中断

	.module FF.c
	.area lit(rom, con, rel)
_led_7::
	.byte 192,249
	.byte 164,176
	.byte 153,146
	.byte 130,248
	.byte 128,144
	.byte 136,131
	.byte 198,161
	.byte 128,142
	.dbfile C:\DOCUME~1\Administrator\桌面\456\FF.c
	.dbsym e led_7 _led_7 A[16:16]kc
	.area text(rom, con, rel)
	.dbfile C:\DOCUME~1\Administrator\桌面\456\FF.c
	.dbfunc e port_init _port_init fV
	.even
_port_init::
	.dbline -1
	.dbline 11
; //ICC-AVR application builder : 2009-5-19 13:21:53
; // Target : M16
; // Crystal: 4.0000Mhz
; 
; #include <iom16v.h>
; #include <macros.h>
; flash unsigned char led_7[16]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,
;                       0x80,0x90,0x88,0x83,0xC6,0xA1,0x80,0x8E};
; unsigned char counter;
; void port_init(void)
; {
	.dbline 12
;  PORTA = 0xFF;
	ldi R24,255
	out 0x1b,R24
	.dbline 13
;  DDRA  = 0xFF;
	out 0x1a,R24
	.dbline 14
;  PORTB = 0xFF;
	out 0x18,R24
	.dbline 15
;  DDRB  = 0x00;
	clr R2
	out 0x17,R2
	.dbline 16
;  PORTC = 0xFF; //m103 output only
	out 0x15,R24
	.dbline 17
;  DDRC  = 0x00;
	out 0x14,R2
	.dbline 18
;  PORTD = 0xFF;
	out 0x12,R24
	.dbline 19
;  DDRD  = 0x00;
	out 0x11,R2
	.dbline -2
	.dbline 20
; }
L1:
	.dbline 0 ; func end
	ret
	.dbend
	.area vector(rom, abs)
	.org 4
	jmp _int0_isr
	.area text(rom, con, rel)
	.dbfile C:\DOCUME~1\Administrator\桌面\456\FF.c
	.dbfunc e int0_isr _int0_isr fV
	.even
_int0_isr::
	st -y,R2
	st -y,R24
	st -y,R25
	in R2,0x3f
	st -y,R2
	.dbline -1
	.dbline 24
	.dbline 26
	lds R24,_counter
	subi R24,255    ; addi 1
	mov R2,R24
	sts _counter,R2
	cpi R24,16
	brlo L3
	.dbline 26
	clr R2
	sts _counter,R2
L3:
	.dbline -2
	.dbline 27
; 
; #pragma interrupt_handler int0_isr:2
; void int0_isr(void)
; {
;  //external interupt on INT0
;  if (++counter>=16) counter = 0;
; }
L2:
	ld R2,y+
	out 0x3f,R2
	ld R25,y+
	ld R24,y+
	ld R2,y+
	.dbline 0 ; func end
	reti
	.dbend
	.area vector(rom, abs)
	.org 8
	jmp _int1_isr
	.area text(rom, con, rel)
	.dbfile C:\DOCUME~1\Administrator\桌面\456\FF.c
	.dbfunc e int1_isr _int1_isr fV
	.even
_int1_isr::
	st -y,R2
	st -y,R24
	in R2,0x3f
	st -y,R2
	.dbline -1
	.dbline 31
; 
; #pragma interrupt_handler int1_isr:3
; void int1_isr(void)
; {
	.dbline 33
;  //external interupt on INT1
;  if (counter) --counter;
	lds R2,_counter
	tst R2
	breq L6
	.dbline 33
	mov R24,R2
	subi R24,1
	sts _counter,R24
	xjmp L7
L6:
	.dbline 34
	ldi R24,15
	sts _counter,R24
L7:
	.dbline -2
	.dbline 35
; 	else counter = 15;
; }
L5:
	ld R2,y+
	out 0x3f,R2
	ld R24,y+
	ld R2,y+
	.dbline 0 ; func end
	reti
	.dbend
	.dbfunc e init_devices _init_devices fV
	.even
_init_devices::
	.dbline -1
	.dbline 39
; 
; //call this routine to initialise all peripherals
; void init_devices(void)
; {
	.dbline 41
;  //stop errant interrupts until set up
;  CLI(); //disable all interrupts
	cli
	.dbline 42
;  port_init();
	xcall _port_init
	.dbline 44
; 
;  MCUCR = 0x0A;
	ldi R24,10
	out 0x35,R24
	.dbline 45
;  GICR  = 0xC0;
	ldi R24,192
	out 0x3b,R24
	.dbline 46
;  TIMSK = 0x00; //timer interrupt sources
	clr R2
	out 0x39,R2
	.dbline 47
;  SEI(); //re-enable interrupts
	sei
	.dbline -2
	.dbline 49
;  //all peripherals are now initialised
; }
L8:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 51
; void main(void)
; {
	.dbline 52
;  	 PORTA=0xFF;
	ldi R24,255
	out 0x1b,R24
	.dbline 53
;     DDRA=0xFF;
	out 0x1a,R24
	.dbline 55
; 
;     GICR|=0xC0;		// 允许INT0、INT1中断
	in R24,0x3b
	ori R24,192
	out 0x3b,R24
	.dbline 56
;     MCUCR=0x0A;		// INT0、INT1下降沿触发 
	ldi R24,10
	out 0x35,R24
	.dbline 57
;     GIFR=0xC0;		// 清除INT0、INT1中断标志位
	ldi R24,192
	out 0x3a,R24
	.dbline 59
; 
;     counter = 0;	// 计数单元初始化为0	
	clr R2
	sts _counter,R2
	xjmp L11
L10:
	.dbline 65
	.dbline 67
	ldi R24,<_led_7
	ldi R25,>_led_7
	lds R30,_counter
	clr R31
	add R30,R24
	adc R31,R25
	lpm R30,Z
	out 0x1b,R30
	.dbline 68
	xcall _int0_isr
	.dbline 69
	xcall _int1_isr
	.dbline 70
L11:
	.dbline 64
	xjmp L10
X0:
	.dbline -2
	.dbline 71
; 
;     //#asm("sei")		// 全局中断允许
; 
; 	
;     while (1)
;     {
; 	 	
;       	 PORTA = led_7[counter];		// 显示计数单元
; 		int0_isr();
; 		int1_isr();
;     }
; }
L9:
	.dbline 0 ; func end
	ret
	.dbend
	.area bss(ram, con, rel)
	.dbfile C:\DOCUME~1\Administrator\桌面\456\FF.c
_counter::
	.blkb 1
	.dbsym e counter _counter c