1

针对德州仪器DM270开发板的bootloader,其实现了内核的下载以及文件系统的下载

  900388:	326d645f 	rsbcc	r6, sp, #1593835520	; 0x5f000000
  90038c:	532e3037 	teqpl	lr, #55	; 0x37
  900390:	6f682f00 	swivs	0x00682f00
  900394:	642f656d 	strvst	r6, [pc], #56d	; 90039c <L_STACK_UNTOUCHED_MAGIC+0x2b0>
  900398:	3037326d 	eorccs	r3, r7, sp, ror #4
  90039c:	6c72722f 	lfmvs	f7, 2, [r2], -#188
  9003a0:	2f64616f 	swics	0x0064616f
  9003a4:	6f6f6200 	swivs	0x006f6200
  9003a8:	00632e74 	rsbeq	r2, r3, r4, ror lr
  9003ac:	32636367 	rsbcc	r6, r3, #-1677721599	; 0x9c000001
  9003b0:	6d6f635f 	stcvsl	3, cr6, [pc, -#380]!
  9003b4:	656c6970 	strvsb	r6, [r12, -#2416]!
  9003b8:	69002e64 	stmvsdb	r0, {r2, r5, r6, r9, r10, r11, sp}
  9003bc:	743a746e 	ldrvct	r7, [r10], -#1134
  9003c0:	312c3028 	teqcc	r12, r8, lsr #32
  9003c4:	28723d29 	ldmcsda	r2!, {r0, r3, r5, r8, r10, r11, r12, sp}^
  9003c8:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  9003cc:	31322d3b 	teqcc	r2, r11, lsr sp
  9003d0:	38343734 	ldmccda	r4!, {r2, r4, r5, r8, r9, r10, r12, sp}
  9003d4:	38343633 	ldmccda	r4!, {r0, r1, r4, r5, r9, r10, r12, sp}
  9003d8:	3431323b 	ldrcct	r3, [r1], -#571
  9003dc:	33383437 	teqcc	r8, #922746880	; 0x37000000
  9003e0:	3b373436 	blcc	16cd4c0 <__bss_end+0xdb8214>
  9003e4:	61686300 	cmnvs	r8, r0, lsl #6
  9003e8:	28743a72 	ldmcsda	r4!, {r1, r4, r5, r6, r9, r11, r12, sp}^
  9003ec:	29322c30 	ldmcsdb	r2!, {r4, r5, r10, r11, sp}
  9003f0:	3873403d 	ldmccda	r3!, {r0, r2, r3, r4, r5, lr}^
  9003f4:	3028723b 	eorcc	r7, r8, r11, lsr r2
  9003f8:	3b29322c 	blcc	134ccb0 <__bss_end+0xa37a04>
  9003fc:	35323b30 	ldrcc	r3, [r2, -#2864]!
  900400:	6c003b35 	stcvs	11, cr3, [r0], -#212
  900404:	20676e6f 	rsbcs	r6, r7, pc, ror #28
  900408:	3a746e69 	bcc	261bdb4 <__bss_end+0x1d06b08>
  90040c:	2c302874 	ldccs	8, cr2, [r0], -#464
  900410:	723d2933 	eorvcs	r2, sp, #835584	; 0xcc000
  900414:	332c3028 	teqcc	r12, #40	; 0x28
  900418:	322d3b29 	eorcc	r3, sp, #41984	; 0xa400
  90041c:	34373431 	ldrcct	r3, [r7], -#1073
  900420:	34363338 	ldrcct	r3, [r6], -#824
  900424:	31323b38 	teqcc	r2, r8, lsr r11
  900428:	38343734 	ldmccda	r4!, {r2, r4, r5, r8, r9, r10, r12, sp}
  90042c:	37343633 	undefined
  900430:	6e75003b 	mrcvs	0, 3, r0, cr5, cr11, {1}
  900434:	6e676973 	mcrvs	9, 3, r6, cr7, cr3, {3}
  900438:	69206465 	stmvsdb	r0!, {r0, r2, r5, r6, r10, sp, lr}
  90043c:	743a746e 	ldrvct	r7, [r10], -#1134
  900440:	342c3028 	strcct	r3, [r12], -#40
  900444:	28723d29 	ldmcsda	r2!, {r0, r3, r5, r8, r10, r11, r12, sp}^
  900448:	29342c30 	ldmcsdb	r4!, {r4, r5, r10, r11, sp}
  90044c:	3030303b 	eorccs	r3, r0, r11, lsr r0
  900450:	30303030 	eorccs	r3, r0, r0, lsr r0
  900454:	30303030 	eorccs	r3, r0, r0, lsr r0
  900458:	303b3030 	eorccs	r3, r11, r0, lsr r0
  90045c:	37373330 	undefined
  900460:	37373737 	undefined
  900464:	37373737 	undefined
  900468:	6f6c003b 	swivs	0x006c003b
  90046c:	7520676e 	strvc	r6, [r0, -#1902]!
  900470:	6769736e 	strvsb	r7, [r9, -lr, ror #6]!
  900474:	2064656e 	rsbcs	r6, r4, lr, ror #10
  900478:	3a746e69 	bcc	261be24 <__bss_end+0x1d06b78>
  90047c:	2c302874 	ldccs	8, cr2, [r0], -#464
  900480:	723d2935 	eorvcs	r2, sp, #868352	; 0xd4000
  900484:	352c3028 	strcc	r3, [r12, -#40]!
  900488:	30303b29 	eorccs	r3, r0, r9, lsr #22
  90048c:	30303030 	eorccs	r3, r0, r0, lsr r0
  900490:	30303030 	eorccs	r3, r0, r0, lsr r0
  900494:	3b303030 	blcc	150c55c <__bss_end+0xbf72b0>
  900498:	37333030 	undefined
  90049c:	37373737 	undefined
  9004a0:	37373737 	undefined
  9004a4:	6c003b37 	stcvs	11, cr3, [r0], -#220
  9004a8:	20676e6f 	rsbcs	r6, r7, pc, ror #28
  9004ac:	676e6f6c 	strvsb	r6, [lr, -r12, ror #30]!
  9004b0:	746e6920 	strvcbt	r6, [lr], -#2336
  9004b4:	3028743a 	eorcc	r7, r8, r10, lsr r4
  9004b8:	3d29362c 	stccc	6, cr3, [r9, -#176]!
  9004bc:	34367340 	ldrcct	r7, [r6], -#832
  9004c0:	3028723b 	eorcc	r7, r8, r11, lsr r2
  9004c4:	3b29362c 	blcc	134dd7c <__bss_end+0xa38ad0>
  9004c8:	30303130 	eorccs	r3, r0, r0, lsr r1
  9004cc:	30303030 	eorccs	r3, r0, r0, lsr r0
  9004d0:	30303030 	eorccs	r3, r0, r0, lsr r0
  9004d4:	30303030 	eorccs	r3, r0, r0, lsr r0
  9004d8:	30303030 	eorccs	r3, r0, r0, lsr r0
  9004dc:	3b303030 	blcc	150c5a4 <__bss_end+0xbf72f8>
  9004e0:	37373730 	undefined
  9004e4:	37373737 	undefined
  9004e8:	37373737 	undefined
  9004ec:	37373737 	undefined
  9004f0:	37373737 	undefined
  9004f4:	003b3737 	eoreqs	r3, r11, r7, lsr r7
  9004f8:	676e6f6c 	strvsb	r6, [lr, -r12, ror #30]!
  9004fc:	6e6f6c20 	cdpvs	12, 6, cr6, cr15, cr0, {1}
  900500:	6e752067 	cdpvs	0, 7, cr2, cr5, cr7, {3}
  900504:	6e676973 	mcrvs	9, 3, r6, cr7, cr3, {3}
  900508:	69206465 	stmvsdb	r0!, {r0, r2, r5, r6, r10, sp, lr}
  90050c:	743a746e 	ldrvct	r7, [r10], -#1134
  900510:	372c3028 	strcc	r3, [r12, -r8, lsr #32]!
  900514:	73403d29 	cmpvc	r0, #2624	; 0xa40
  900518:	723b3436 	eorvcs	r3, r11, #905969664	; 0x36000000
  90051c:	372c3028 	strcc	r3, [r12, -r8, lsr #32]!
  900520:	30303b29 	eorccs	r3, r0, r9, lsr #22
  900524:	30303030 	eorccs	r3, r0, r0, lsr r0
  900528:	30303030 	eorccs	r3, r0, r0, lsr r0
  90052c:	3b303030 	blcc	150c5f4 <__bss_end+0xbf7348>
  900530:	37373130 	undefined
  900534:	37373737 	undefined
  900538:	37373737 	undefined
  90053c:	37373737 	undefined
  900540:	37373737 	undefined
  900544:	3b373737 	blcc	16ce228 <__bss_end+0xdb8f7c>
  900548:	6f687300 	swivs	0x00687300
  90054c:	69207472 	stmvsdb	r0!, {r1, r4, r5, r6, r10, r12, sp, lr}
  900550:	743a746e 	ldrvct	r7, [r10], -#1134
  900554:	382c3028 	stmccda	r12!, {r3, r5, r12, sp}
  900558:	73403d29 	cmpvc	r0, #2624	; 0xa40
  90055c:	723b3631 	eorvcs	r3, r11, #51380224	; 0x3100000
  900560:	382c3028 	stmccda	r12!, {r3, r5, r12, sp}
  900564:	332d3b29 	teqcc	sp, #41984	; 0xa400
  900568:	38363732 	ldmccda	r6!, {r1, r4, r5, r8, r9, r10, r12, sp}
  90056c:	3732333b 	undefined
  900570:	003b3736 	eoreqs	r3, r11, r6, lsr r7
  900574:	726f6873 	rsbvc	r6, pc, #7536640	; 0x730000
  900578:	6e752074 	mrcvs	0, 3, r2, cr5, cr4, {3}
  90057c:	6e676973 	mcrvs	9, 3, r6, cr7, cr3, {3}
  900580:	69206465 	stmvsdb	r0!, {r0, r2, r5, r6, r10, sp, lr}
  900584:	743a746e 	ldrvct	r7, [r10], -#1134
  900588:	392c3028 	stmccdb	r12!, {r3, r5, r12, sp}
  90058c:	73403d29 	cmpvc	r0, #2624	; 0xa40
  900590:	723b3631 	eorvcs	r3, r11, #51380224	; 0x3100000
  900594:	392c3028 	stmccdb	r12!, {r3, r5, r12, sp}
  900598:	3b303b29 	blcc	150f244 <__bss_end+0xbf9f98>
  90059c:	33353536 	teqcc	r5, #226492416	; 0xd800000
  9005a0:	73003b35 	tstvc	r0, #54272	; 0xd400
  9005a4:	656e6769 	strvsb	r6, [lr, -#1897]!
  9005a8:	68632064 	stmvsda	r3!, {r2, r5, r6, sp}^
  9005ac:	743a7261 	ldrvct	r7, [r10], -#609
  9005b0:	312c3028 	teqcc	r12, r8, lsr #32
  9005b4:	403d2930 	eormis	r2, sp, r0, lsr r9
  9005b8:	723b3873 	eorvcs	r3, r11, #7536640	; 0x730000
  9005bc:	312c3028 	teqcc	r12, r8, lsr #32
  9005c0:	2d3b2930 	ldccs	9, cr2, [r11, -#192]!
  9005c4:	3b383231 	blcc	170ce90 <__bss_end+0xdf7be4>
  9005c8:	3b373231 	blcc	16cce94 <__bss_end+0xdb7be8>
  9005cc:	736e7500 	cmnvc	lr, #0	; 0x0
  9005d0:	656e6769 	strvsb	r6, [lr, -#1897]!
  9005d4:	68632064 	stmvsda	r3!, {r2, r5, r6, sp}^
  9005d8:	743a7261 	ldrvct	r7, [r10], -#609
  9005dc:	312c3028 	teqcc	r12, r8, lsr #32
  9005e0:	403d2931 	eormis	r2, sp, r1, lsr r9
  9005e4:	723b3873 	eorvcs	r3, r11, #7536640	; 0x730000
  9005e8:	312c3028 	teqcc	r12, r8, lsr #32
  9005ec:	303b2931 	eorccs	r2, r11, r1, lsr r9
  9005f0:	3535323b 	ldrcc	r3, [r5, -#571]!
  9005f4:	6c66003b 	stcvsl	0, cr0, [r6], -#236
  9005f8:	3a74616f 	bcc	2618bbc <__bss_end+0x1d03910>
  9005fc:	2c302874 	ldccs	8, cr2, [r0], -#464
  900600:	3d293231 	sfmcc	f3, 4, [r9, -#196]!
  900604:	2c302872 	ldccs	8, cr2, [r0], -#456
  900608:	343b2931 	ldrcct	r2, [r11], -#2353
  90060c:	003b303b 	eoreqs	r3, r11, r11, lsr r0
  900610:	62756f64 	rsbvss	r6, r5, #400	; 0x190
  900614:	743a656c 	ldrvct	r6, [r10], -#1388
  900618:	312c3028 	teqcc	r12, r8, lsr #32
  90061c:	723d2933 	eorvcs	r2, sp, #835584	; 0xcc000
  900620:	312c3028 	teqcc	r12, r8, lsr #32
  900624:	3b383b29 	blcc	170f2d0 <__bss_end+0xdfa024>
  900628:	6c003b30 	stcvs	11, cr3, [r0], -#192
  90062c:	20676e6f 	rsbcs	r6, r7, pc, ror #28
  900630:	62756f64 	rsbvss	r6, r5, #400	; 0x190
  900634:	743a656c 	ldrvct	r6, [r10], -#1388
  900638:	312c3028 	teqcc	r12, r8, lsr #32
  90063c:	723d2934 	eorvcs	r2, sp, #851968	; 0xd0000
  900640:	312c3028 	teqcc	r12, r8, lsr #32
  900644:	3b383b29 	blcc	170f2f0 <__bss_end+0xdfa044>
  900648:	63003b30 	tstvs	r0, #49152	; 0xc000
  90064c:	6c706d6f 	ldcvsl	13, cr6, [r0], -#444
  900650:	69207865 	stmvsdb	r0!, {r0, r2, r5, r6, r11, r12, sp, lr}
  900654:	743a746e 	ldrvct	r7, [r10], -#1134
  900658:	312c3028 	teqcc	r12, r8, lsr #32
  90065c:	733d2935 	teqvc	sp, #868352	; 0xd4000
  900660:	61657238 	cmnvs	r5, r8, lsr r2
  900664:	30283a6c 	eorcc	r3, r8, r12, ror #20
  900668:	2c29312c 	stfcss	f3, [r9], -#176
  90066c:	32332c30 	eorccs	r2, r3, #12288	; 0x3000
  900670:	616d693b 	cmnvs	sp, r11, lsr r9
  900674:	30283a67 	eorcc	r3, r8, r7, ror #20
  900678:	2c29312c 	stfcss	f3, [r9], -#176
  90067c:	332c3233 	teqcc	r12, #805306371	; 0x30000003
  900680:	003b3b32 	eoreqs	r3, r11, r2, lsr r11
  900684:	706d6f63 	rsbvc	r6, sp, r3, ror #30
  900688:	2078656c 	rsbcss	r6, r8, r12, ror #10
  90068c:	616f6c66 	cmnvs	pc, r6, ror #24
  900690:	28743a74 	ldmcsda	r4!, {r2, r4, r5, r6, r9, r11, r12, sp}^
  900694:	36312c30 	undefined
  900698:	28723d29 	ldmcsda	r2!, {r0, r3, r5, r8, r10, r11, r12, sp}^
  90069c:	36312c30 	undefined
  9006a0:	3b343b29 	blcc	160f34c <__bss_end+0xcfa0a0>
  9006a4:	63003b30 	tstvs	r0, #49152	; 0xc000
  9006a8:	6c706d6f 	ldcvsl	13, cr6, [r0], -#444
  9006ac:	64207865 	strvst	r7, [r0], -#2149
  9006b0:	6c62756f 	stcvsl	5, cr7, [r2], -#444
  9006b4:	28743a65 	ldmcsda	r4!, {r0, r2, r5, r6, r9, r11, r12, sp}^
  9006b8:	37312c30 	undefined
  9006bc:	28723d29 	ldmcsda	r2!, {r0, r3, r5, r8, r10, r11, r12, sp}^
  9006c0:	37312c30 	undefined
  9006c4:	3b383b29 	blcc	170f370 <__bss_end+0xdfa0c4>
  9006c8:	63003b30 	tstvs	r0, #49152	; 0xc000
  9006cc:	6c706d6f 	ldcvsl	13, cr6, [r0], -#444
  9006d0:	6c207865 	stcvs	8, cr7, [r0], -#404
  9006d4:	20676e6f 	rsbcs	r6, r7, pc, ror #28
  9006d8:	62756f64 	rsbvss	r6, r5, #400	; 0x190
  9006dc:	743a656c 	ldrvct	r6, [r10], -#1388
  9006e0:	312c3028 	teqcc	r12, r8, lsr #32
  9006e4:	723d2938 	eorvcs	r2, sp, #917504	; 0xe0000
  9006e8:	312c3028 	teqcc	r12, r8, lsr #32
  9006ec:	383b2938 	ldmccda	r11!, {r3, r4, r5, r8, r11, sp}
  9006f0:	003b303b 	eoreqs	r3, r11, r11, lsr r0
  9006f4:	64696f76 	strvsbt	r6, [r9], -#3958
  9006f8:	3028743a 	eorcc	r7, r8, r10, lsr r4
  9006fc:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900700:	2c30283d 	ldccs	8, cr2, [r0], -#244
  900704:	00293931 	eoreq	r3, r9, r1, lsr r9
  900708:	75625f5f 	strvcb	r5, [r2, -#3935]!
  90070c:	69746c69 	ldmvsdb	r4!, {r0, r3, r5, r6, r10, r11, sp, lr}^
  900710:	61765f6e 	cmnvs	r6, lr, ror #30
  900714:	73696c5f 	cmnvc	r9, #24320	; 0x5f00
  900718:	28743a74 	ldmcsda	r4!, {r2, r4, r5, r6, r9, r11, r12, sp}^
  90071c:	30322c30 	eorccs	r2, r2, r0, lsr r12
  900720:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  900724:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900728:	6f690029 	swivs	0x00690029
  90072c:	6d00682e 	stcvs	8, cr6, [r0, -#184]
  900730:	6f636d65 	swivs	0x00636d65
  900734:	6769666e 	strvsb	r6, [r9, -lr, ror #12]!
  900738:	7000682e 	andvc	r6, r0, lr, lsr #16
  90073c:	682e756d 	stmvsda	lr!, {r0, r2, r3, r5, r6, r8, r10, r12, sp, lr}
  900740:	543a2000 	ldrplt	r2, [r10]
  900744:	312c3328 	teqcc	r12, r8, lsr #6
  900748:	4f653d29 	swimi	0x00653d29
  90074c:	59454b4e 	stmpldb	r5, {r1, r2, r3, r6, r8, r9, r11, lr}^
  900750:	5445445f 	strplb	r4, [r5], -#1119
  900754:	3a544345 	bcc	1e11470 <__bss_end+0x14fc1c4>
  900758:	4e4f2c31 	mcrmi	12, 2, r2, cr15, cr1, {1}
  90075c:	3159454b 	cmpcc	r9, r11, asr #10
  900760:	45445f53 	strmib	r5, [r4, -#3923]
  900764:	54434554 	strplb	r4, [r3], -#1364
  900768:	452c323a 	strmi	r3, [r12, -#570]!
  90076c:	4e4f5458 	mcrmi	4, 2, r5, cr15, cr8, {2}
  900770:	45445f46 	strmib	r5, [r4, -#3910]
  900774:	54434554 	strplb	r4, [r3], -#1364
  900778:	412c333a 	teqmi	r12, r10, lsr r3
  90077c:	4d52414c 	ldfmie	f4, [r2, -#304]
  900780:	5445445f 	strplb	r4, [r5], -#1119
  900784:	3a544345 	bcc	1e114a0 <__bss_end+0x14fc1f4>
  900788:	48432c34 	stmmida	r3, {r2, r4, r5, r10, r11, sp}^
  90078c:	534e4947 	cmppl	lr, #1163264	; 0x11c000
  900790:	5445445f 	strplb	r4, [r5], -#1119
  900794:	3a544345 	bcc	1e114b0 <__bss_end+0x14fc204>
  900798:	48432c35 	stmmida	r3, {r0, r2, r4, r5, r10, r11, sp}^
  90079c:	5f4d5247 	swipl	0x004d5247
  9007a0:	45544544 	ldrmib	r4, [r4, -#1348]
  9007a4:	363a5443 	ldrcct	r5, [r10], -r3, asr #8
  9007a8:	4344412c 	cmpmi	r4, #11	; 0xb
  9007ac:	44414552 	strmib	r4, [r1], -#1362
  9007b0:	45445f59 	strmib	r5, [r4, -#3929]
  9007b4:	54434554 	strplb	r4, [r3], -#1364
  9007b8:	3b2c373a 	blcc	140e4a8 <__bss_end+0xaf91fc>
  9007bc:	69747500 	ldmvsdb	r4!, {r8, r10, r12, sp, lr}^
  9007c0:	00682e6c 	rsbeq	r2, r8, r12, ror #28
  9007c4:	2e633269 	cdpcs	2, 6, cr3, cr3, cr9, {3}
  9007c8:	3a200068 	bcc	1100970 <__bss_end+0x7eb6c4>
  9007cc:	2c352854 	ldccs	8, cr2, [r5], -#336
  9007d0:	653d2931 	ldrvs	r2, [sp, -#2353]!
  9007d4:	5f433249 	swipl	0x00433249
  9007d8:	43435553 	cmpmi	r3, #348127232	; 0x14c00000
  9007dc:	3a535345 	bcc	1dd54f8 <__bss_end+0x14c024c>
  9007e0:	32492c30 	subcc	r2, r9, #12288	; 0x3000
  9007e4:	52455f43 	subpl	r5, r5, #268	; 0x10c