liushuideng.s

流水灯

	.module liushuideng.c
	.area text(rom, con, rel)
	.dbfile D:\挑战杯（保留）\programs\liushuideng\liushuideng.c
	.dbfunc e delay _delay fV
;              x -> R20,R21
;              y -> R22,R23
;              a -> R16,R17
	.even
_delay::
	xcall push_xgsetF000
	.dbline -1
	.dbline 7
; #include<iom16v.h>
; #include<macros.h>
; 
; int i;
; 
; void delay(int a)
; {
	.dbline 9
;    int x,y;
;    for(x=0;x<a;x++)
	clr R20
	clr R21
	xjmp L5
L2:
	.dbline 10
;       for(y=0;y<1141;y++);
	clr R22
	clr R23
L6:
	.dbline 10
L7:
	.dbline 10
	subi R22,255  ; offset = 1
	sbci R23,255
	.dbline 10
	cpi R22,117
	ldi R30,4
	cpc R23,R30
	brlt L6
X0:
L3:
	.dbline 9
	subi R20,255  ; offset = 1
	sbci R21,255
L5:
	.dbline 9
	cp R20,R16
	cpc R21,R17
	brlt L2
X1:
	.dbline -2
L1:
	.dbline 0 ; func end
	xjmp pop_xgsetF000
	.dbsym r x 20 I
	.dbsym r y 22 I
	.dbsym r a 16 I
	.dbend
	.dbfunc e main _main fI
	.even
_main::
	.dbline -1
	.dbline 14
; }
; 
; main()
; {
	.dbline 15
;    DDRA=0xff;
	ldi R24,255
	out 0x1a,R24
	.dbline 16
;    PORTA=0xfe;
	ldi R24,254
	out 0x1b,R24
	xjmp L12
L11:
	.dbline 18
;    while(1)
;    {
	.dbline 19
;    for(i=0;i<8;i++)
	clr R2
	clr R3
	sts _i+1,R3
	sts _i,R2
L14:
	.dbline 20
;      {
	.dbline 21
; 	  PORTA|=0xff;
	in R24,0x1b
	ori R24,255
	out 0x1b,R24
	.dbline 22
; 	  PORTA&=~BIT(i);
	lds R18,_i
	lds R19,_i+1
	ldi R16,1
	ldi R17,0
	xcall lsl16
	movw R2,R16
	com R2
	com R3
	in R4,0x1b
	clr R5
	and R4,R2
	and R5,R3
	out 0x1b,R4
	.dbline 23
; 	  delay(50);
	ldi R16,50
	ldi R17,0
	xcall _delay
	.dbline 24
; 	 }
L15:
	.dbline 19
	lds R24,_i
	lds R25,_i+1
	adiw R24,1
	sts _i+1,R25
	sts _i,R24
	.dbline 19
	cpi R24,8
	ldi R30,0
	cpc R25,R30
	brlt L14
X2:
	.dbline 25
;    for(i=6;i>=1;i--)
	ldi R24,6
	ldi R25,0
	sts _i+1,R25
	sts _i,R24
L18:
	.dbline 26
;      {
	.dbline 27
;       PORTA|=0xff;
	in R24,0x1b
	ori R24,255
	out 0x1b,R24
	.dbline 28
; 	  PORTA&=~BIT(i);
	lds R18,_i
	lds R19,_i+1
	ldi R16,1
	ldi R17,0
	xcall lsl16
	movw R2,R16
	com R2
	com R3
	in R4,0x1b
	clr R5
	and R4,R2
	and R5,R3
	out 0x1b,R4
	.dbline 29
; 	  delay(50);
	ldi R16,50
	ldi R17,0
	xcall _delay
	.dbline 30
;      }
L19:
	.dbline 25
	lds R24,_i
	lds R25,_i+1
	sbiw R24,1
	sts _i+1,R25
	sts _i,R24
	.dbline 25
	cpi R24,1
	ldi R30,0
	cpc R25,R30
	brge L18
X3:
	.dbline 31
;    }
L12:
	.dbline 17
	xjmp L11
X4:
	.dbline -2
L10:
	.dbline 0 ; func end
	ret
	.dbend
	.area bss(ram, con, rel)
	.dbfile D:\挑战杯（保留）\programs\liushuideng\liushuideng.c
_i::
	.blkb 2
	.dbsym e i _i I
; }
;