Security code: Difference between revisions

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m (Created page with "Pointed to by $182. From KOF96 (CD): <pre> moveq #0,d3 ;64728: 7600 tst 2580(a5) ;6472A: 4A6D0A14 bne LAB_20F3 ;6472E: 6600003C movea.l 2564(a5),a0 ;64732: 206D0A04 m…")
 
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Pointed to by $182.
Pointed to by $182. What is this used for ?


From KOF96 (CD):
From KOF96 (CD):


<pre>
<pre>
moveq #0,d3 ;64728: 7600
moveq #0,d3
tst 2580(a5) ;6472A: 4A6D0A14
tst 2580(a5) ;$10FD14.w
bne LAB_20F3 ;6472E: 6600003C
bne LAB_20F3 ;
movea.l 2564(a5),a0 ;64732: 206D0A04
movea.l 2564(a5),a0 ;$10FD04.l
move 2568(a5),d7 ;64736: 3E2D0A08
move 2568(a5),d7 ;$10FD08.w
LAB_20F0:
LAB_20F0:
move.b d0,EXT_03E5 ;6473A: 13C000300001
move.b d0,EXT_03E5 ;watchdog
move (a0),d1 ;64740: 3210
move (a0),d1
cmpi.b #$FF,d1 ;64742: 0C0100FF
cmpi.b #$FF,d1
beq.s LAB_20F1 ;64746: 671A
beq.s LAB_20F1 ;skip
move 2(a0),d0 ;64748: 30280002
move 2(a0),d0
cmp.b 2766(a5),d0 ;6474C: B02D0ACE
cmp.b 2766(a5),d0 ;$10FDCE.b
bne.s LAB_20F1 ;64750: 6610
bne.s LAB_20F1 ;skip
move 4(a0),d0 ;64752: 30280004
move 4(a0),d0
cmp.b 2767(a5),d0 ;64756: B02D0ACF
cmp.b 2767(a5),d0 ;$10FDCF.b
bne.s LAB_20F1 ;6475A: 6606
bne.s LAB_20F1 ;skip
cmp.b 2768(a5),d1 ;6475C: B22D0AD0
cmp.b 2768(a5),d1 ;$10FDD0.b
beq.s LAB_20F2 ;64760: 6708
beq.s LAB_20F2
LAB_20F1:
LAB_20F1:
addq.l #8,a0 ;64762: 5088
addq.l #8,a0
dbf d7,LAB_20F0 ;64764: 51CFFFD4
dbf d7,LAB_20F0
move d7,d3 ;64768: 3607
move d7,d3
LAB_20F2:
LAB_20F2:
rts ;6476A: 4E75
rts
 
LAB_20F3:
LAB_20F3:
movea.l 2564(a5),a0 ;6476C: 206D0A04
movea.l 2564(a5),a0 ;$10FD04.l
move 2568(a5),d7 ;64770: 3E2D0A08
move 2568(a5),d7 ;$10FD08.w
LAB_20F4:
LAB_20F4:
move (a0),d1 ;64774: 3210
move (a0),d1
lsr #8,d1 ;64776: E049
lsr #8,d1
cmpi.b #$FF,d1 ;64778: 0C0100FF
cmpi.b #$FF,d1
beq.s LAB_20F5 ;6477C: 671A
beq.s LAB_20F5 ;skip
move (a0),d0 ;6477E: 3010
move (a0),d0
cmp.b 2766(a5),d0 ;64780: B02D0ACE
cmp.b 2766(a5),d0 ;$10FDCE.b
bne.s LAB_20F5 ;64784: 6612
bne.s LAB_20F5 ;skip
move 2(a0),d0 ;64786: 30280002
move 2(a0),d0
lsr #8,d0 ;6478A: E048
lsr #8,d0
cmp.b 2767(a5),d0 ;6478C: B02D0ACF
cmp.b 2767(a5),d0 ;$10FDCF.b
bne.s LAB_20F5 ;64790: 6606
bne.s LAB_20F5 ;skip
cmp.b 2768(a5),d1 ;64792: B22D0AD0
cmp.b 2768(a5),d1 ;$10FDD0.b
beq.s LAB_20F6 ;64796: 6708
beq.s LAB_20F6
LAB_20F5:
LAB_20F5:
addq.l #4,a0 ;64798: 5888
addq.l #4,a0
dbf d7,LAB_20F4 ;6479A: 51CFFFD8
dbf d7,LAB_20F4
move d7,d3 ;6479E: 3607
move d7,d3
LAB_20F6:
LAB_20F6:
rts ;647A0: 4E75
rts
</pre>
</pre>


[[Category:Code]]
[[Category:Code]]

Revision as of 08:18, 21 April 2011

Pointed to by $182. What is this used for ?

From KOF96 (CD):

	moveq	#0,d3
	tst	2580(a5)		;$10FD14.w
	bne	LAB_20F3		;
	movea.l	2564(a5),a0		;$10FD04.l
	move	2568(a5),d7		;$10FD08.w
LAB_20F0:
	move.b	d0,EXT_03E5		;watchdog
	move	(a0),d1
	cmpi.b	#$FF,d1
	beq.s	LAB_20F1		;skip
	move	2(a0),d0
	cmp.b	2766(a5),d0		;$10FDCE.b
	bne.s	LAB_20F1		;skip
	move	4(a0),d0
	cmp.b	2767(a5),d0		;$10FDCF.b
	bne.s	LAB_20F1		;skip
	cmp.b	2768(a5),d1		;$10FDD0.b
	beq.s	LAB_20F2
LAB_20F1:
	addq.l	#8,a0
	dbf	d7,LAB_20F0
	move	d7,d3
LAB_20F2:
	rts

LAB_20F3:
	movea.l	2564(a5),a0		;$10FD04.l
	move	2568(a5),d7		;$10FD08.w
LAB_20F4:
	move	(a0),d1
	lsr	#8,d1
	cmpi.b	#$FF,d1
	beq.s	LAB_20F5		;skip
	move	(a0),d0
	cmp.b	2766(a5),d0		;$10FDCE.b
	bne.s	LAB_20F5		;skip
	move	2(a0),d0
	lsr	#8,d0
	cmp.b	2767(a5),d0		;$10FDCF.b
	bne.s	LAB_20F5		;skip
	cmp.b	2768(a5),d1		;$10FDD0.b
	beq.s	LAB_20F6
LAB_20F5:
	addq.l	#4,a0
	dbf	d7,LAB_20F4
	move	d7,d3
LAB_20F6:
	rts