3

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

  900424:	003b303b 	eoreqs	r3, r11, r11, lsr r0
  900428:	64696f76 	strvsbt	r6, [r9], -#3958
  90042c:	3028743a 	eorcc	r7, r8, r10, lsr r4
  900430:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900434:	2c30283d 	ldccs	8, cr2, [r0], -#244
  900438:	00293931 	eoreq	r3, r9, r1, lsr r9
  90043c:	75625f5f 	strvcb	r5, [r2, -#3935]!
  900440:	69746c69 	ldmvsdb	r4!, {r0, r3, r5, r6, r10, r11, sp, lr}^
  900444:	61765f6e 	cmnvs	r6, lr, ror #30
  900448:	73696c5f 	cmnvc	r9, #24320	; 0x5f00
  90044c:	28743a74 	ldmcsda	r4!, {r2, r4, r5, r6, r9, r11, r12, sp}^
  900450:	30322c30 	eorccs	r2, r2, r0, lsr r12
  900454:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  900458:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  90045c:	6f690029 	swivs	0x00690029
  900460:	6d00682e 	stcvs	8, cr6, [r0, -#184]
  900464:	6f636d65 	swivs	0x00636d65
  900468:	6769666e 	strvsb	r6, [r9, -lr, ror #12]!
  90046c:	7000682e 	andvc	r6, r0, lr, lsr #16
  900470:	682e756d 	stmvsda	lr!, {r0, r2, r3, r5, r6, r8, r10, r12, sp, lr}
  900474:	543a2000 	ldrplt	r2, [r10]
  900478:	312c3328 	teqcc	r12, r8, lsr #6
  90047c:	4f653d29 	swimi	0x00653d29
  900480:	59454b4e 	stmpldb	r5, {r1, r2, r3, r6, r8, r9, r11, lr}^
  900484:	5445445f 	strplb	r4, [r5], -#1119
  900488:	3a544345 	bcc	1e111a4 <__bss_end+0x14fd948>
  90048c:	4e4f2c31 	mcrmi	12, 2, r2, cr15, cr1, {1}
  900490:	3159454b 	cmpcc	r9, r11, asr #10
  900494:	45445f53 	strmib	r5, [r4, -#3923]
  900498:	54434554 	strplb	r4, [r3], -#1364
  90049c:	452c323a 	strmi	r3, [r12, -#570]!
  9004a0:	4e4f5458 	mcrmi	4, 2, r5, cr15, cr8, {2}
  9004a4:	45445f46 	strmib	r5, [r4, -#3910]
  9004a8:	54434554 	strplb	r4, [r3], -#1364
  9004ac:	412c333a 	teqmi	r12, r10, lsr r3
  9004b0:	4d52414c 	ldfmie	f4, [r2, -#304]
  9004b4:	5445445f 	strplb	r4, [r5], -#1119
  9004b8:	3a544345 	bcc	1e111d4 <__bss_end+0x14fd978>
  9004bc:	48432c34 	stmmida	r3, {r2, r4, r5, r10, r11, sp}^
  9004c0:	534e4947 	cmppl	lr, #1163264	; 0x11c000
  9004c4:	5445445f 	strplb	r4, [r5], -#1119
  9004c8:	3a544345 	bcc	1e111e4 <__bss_end+0x14fd988>
  9004cc:	48432c35 	stmmida	r3, {r0, r2, r4, r5, r10, r11, sp}^
  9004d0:	5f4d5247 	swipl	0x004d5247
  9004d4:	45544544 	ldrmib	r4, [r4, -#1348]
  9004d8:	363a5443 	ldrcct	r5, [r10], -r3, asr #8
  9004dc:	4344412c 	cmpmi	r4, #11	; 0xb
  9004e0:	44414552 	strmib	r4, [r1], -#1362
  9004e4:	45445f59 	strmib	r5, [r4, -#3929]
  9004e8:	54434554 	strplb	r4, [r3], -#1364
  9004ec:	3b2c373a 	blcc	140e1dc <__bss_end+0xafa980>
  9004f0:	69747500 	ldmvsdb	r4!, {r8, r10, r12, sp, lr}^
  9004f4:	00682e6c 	rsbeq	r2, r8, r12, ror #28
  9004f8:	2e633269 	cdpcs	2, 6, cr3, cr3, cr9, {3}
  9004fc:	3a200068 	bcc	11006a4 <__bss_end+0x7ece48>
  900500:	2c352854 	ldccs	8, cr2, [r5], -#336
  900504:	653d2931 	ldrvs	r2, [sp, -#2353]!
  900508:	5f433249 	swipl	0x00433249
  90050c:	43435553 	cmpmi	r3, #348127232	; 0x14c00000
  900510:	3a535345 	bcc	1dd522c <__bss_end+0x14c19d0>
  900514:	32492c30 	subcc	r2, r9, #12288	; 0x3000
  900518:	52455f43 	subpl	r5, r5, #268	; 0x10c
  90051c:	3a524f52 	bcc	1d9426c <__bss_end+0x1480a10>
  900520:	003b2c31 	eoreqs	r2, r11, r1, lsr r12
  900524:	5f433249 	swipl	0x00433249
  900528:	55544552 	ldrplb	r4, [r4, -#1362]
  90052c:	743a4e52 	ldrvct	r4, [r10], -#3666
  900530:	322c3528 	eorcc	r3, r12, #167772160	; 0xa000000
  900534:	35283d29 	strcc	r3, [r8, -#3369]!
  900538:	0029312c 	eoreq	r3, r9, r12, lsr #2
  90053c:	37326d64 	ldrcc	r6, [r2, -r4, ror #26]!
  900540:	65722d30 	ldrvsb	r2, [r2, -#3376]!
  900544:	74736967 	ldrvcbt	r6, [r3], -#2407
  900548:	2e737265 	cdpcs	2, 7, cr7, cr3, cr5, {3}
  90054c:	4e450068 	cdpmi	0, 4, cr0, cr5, cr8, {3}
  900550:	3a595254 	bcc	1f54ea8 <__bss_end+0x164164c>
  900554:	2c302874 	ldccs	8, cr2, [r0], -#464
  900558:	3d293132 	stfccs	f3, [r9, -#200]!
  90055c:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900560:	2a3d2932 	bcs	184aa30 <__bss_end+0xf371d4>
  900564:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900568:	663d2933 	undefined
  90056c:	312c3028 	teqcc	r12, r8, lsr #32
  900570:	62002939 	andvs	r2, r0, #933888	; 0xe4000
  900574:	73746f6f 	cmnvc	r4, #444	; 0x1bc
  900578:	70617274 	rsbvc	r7, r1, r4, ror r2
  90057c:	3028463a 	eorcc	r4, r8, r10, lsr r6
  900580:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900584:	746e6500 	strvcbt	r6, [lr], -#1280
  900588:	615f7972 	cmpvs	pc, r2, ror r9
  90058c:	3a726464 	bcc	2599724 <__bss_end+0x1c85ec8>
  900590:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900594:	6e002931 	mcrvs	9, 0, r2, cr0, cr1, {1}
  900598:	625f6d75 	subvss	r6, pc, #7488	; 0x1d40
  90059c:	73657479 	cmnvc	r5, #2030043136	; 0x79000000
  9005a0:	2c30283a 	ldccs	8, cr2, [r0], -#232
  9005a4:	73002934 	tstvc	r0, #851968	; 0xd0000
  9005a8:	74726174 	ldrvcbt	r6, [r2], -#372
  9005ac:	2c30283a 	ldccs	8, cr2, [r0], -#232
  9005b0:	65002934 	strvs	r2, [r0, -#2356]
  9005b4:	283a646e 	ldmcsda	r10!, {r1, r2, r3, r5, r6, r10, sp, lr}
  9005b8:	29342c30 	ldmcsdb	r4!, {r4, r5, r10, r11, sp}
  9005bc:	283a6900 	ldmcsda	r10!, {r8, r11, sp, lr}
  9005c0:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  9005c4:	5f736600 	swipl	0x00736600
  9005c8:	72646461 	rsbvc	r6, r4, #1627389952	; 0x61000000
  9005cc:	2c30283a 	ldccs	8, cr2, [r0], -#232
  9005d0:	3d293432 	stccc	4, cr3, [r9, -#200]!
  9005d4:	2c30282a 	ldccs	8, cr2, [r0], -#168
  9005d8:	72002939 	andvc	r2, r0, #933888	; 0xe4000
  9005dc:	64615f73 	strvsbt	r5, [r1], -#3955
  9005e0:	283a7264 	ldmcsda	r10!, {r2, r5, r6, r9, r12, sp, lr}
  9005e4:	34322c30 	ldrcct	r2, [r2], -#3120
  9005e8:	756e0029 	strvcb	r0, [lr, -#41]!
  9005ec:	36315f6d 	ldrcct	r5, [r1], -sp, ror #30
  9005f0:	5f746962 	swipl	0x00746962
  9005f4:	64726f77 	ldrvsbt	r6, [r2], -#3959
  9005f8:	30283a73 	eorcc	r3, r8, r3, ror r10
  9005fc:	0029342c 	eoreq	r3, r9, r12, lsr #8
  900600:	706d6574 	rsbvc	r6, sp, r4, ror r5
  900604:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900608:	62002939 	andvs	r2, r0, #933888	; 0xe4000
  90060c:	72646c74 	rsbvc	r6, r4, #29696	; 0x7400
  900610:	2e69755f 	mcrcs	5, 3, r7, cr9, cr15, {2}
  900614:	79740063 	ldmvcdb	r4!, {r0, r1, r5, r6}^
  900618:	2e736570 	mrccs	5, 3, r6, cr3, cr0, {3}
  90061c:	72700068 	rsbvcs	r0, r0, #104	; 0x68
  900620:	6572676f 	ldrvsb	r6, [r2, -#1903]!
  900624:	6d5f7373 	ldcvsl	3, cr7, [pc, -#460]
  900628:	72657465 	rsbvc	r7, r5, #1694498816	; 0x65000000
  90062c:	6142435f 	cmpvs	r2, pc, asr r3
  900630:	745f6b63 	ldrvcb	r6, [pc], #b63	; 900638 <btldr_start+0x638>
  900634:	3128743a 	teqcc	r8, r10, lsr r4
  900638:	3d29312c 	stfccs	f3, [r9, -#176]!
  90063c:	322c3128 	eorcc	r3, r12, #10	; 0xa
  900640:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  900644:	29332c31 	ldmcsdb	r3!, {r0, r4, r5, r10, r11, sp}
  900648:	3028663d 	eorcc	r6, r8, sp, lsr r6
  90064c:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900650:	543a2000 	ldrplt	r2, [r10]
  900654:	342c3128 	strcct	r3, [r12], -#296
  900658:	4c653d29 	stcmil	13, cr3, [r5], -#164
  90065c:	5f44414f 	swipl	0x0044414f
  900660:	303a4b4f 	eorccs	r4, r10, pc, asr #22
  900664:	414f4c2c 	cmpmi	pc, r12, lsr #24
  900668:	494d5f44 	stmmidb	sp, {r2, r6, r8, r9, r10, r11, r12, lr}^
  90066c:	4e495353 	mcrmi	3, 2, r5, cr9, cr3, {2}
  900670:	42435f47 	submi	r5, r3, #284	; 0x11c
  900674:	3a4b4341 	bcc	1bd1380 <__bss_end+0x12bdb24>
  900678:	4f4c2c31 	swimi	0x004c2c31
  90067c:	495f4441 	ldmmidb	pc, {r0, r6, r10, lr}^
  900680:	4c41564e 	stcmil	6, cr5, [r1], -#312
  900684:	465f4449 	ldrmib	r4, [pc], -r9, asr #8
  900688:	414d524f 	cmpmi	sp, pc, asr #4
  90068c:	2c323a54 	ldccs	10, cr3, [r2], -#336
  900690:	44414f4c 	strmib	r4, [r1], -#3916
  900694:	564e495f 	undefined
  900698:	44494c41 	strmib	r4, [r9], -#3137
  90069c:	4b48435f 	blmi	1b11420 <__bss_end+0x11fdbc4>
  9006a0:	3a4d5553 	bcc	1c55bf4 <__bss_end+0x1342398>
  9006a4:	003b2c33 	eoreqs	r2, r11, r3, lsr r12
  9006a8:	73726150 	cmnvc	r2, #20	; 0x14
  9006ac:	61745365 	cmnvs	r4, r5, ror #6
  9006b0:	5f737574 	swipl	0x00737574
  9006b4:	28743a74 	ldmcsda	r4!, {r2, r4, r5, r6, r9, r11, r12, sp}^
  9006b8:	29352c31 	ldmcsdb	r5!, {r0, r4, r5, r10, r11, sp}
  9006bc:	2c31283d 	ldccs	8, cr2, [r1], -#244
  9006c0:	62002934 	andvs	r2, r0, #851968	; 0xd0000
  9006c4:	72646c74 	rsbvc	r6, r4, #29696	; 0x7400
  9006c8:	2e69705f 	mcrcs	0, 3, r7, cr9, cr15, {2}
  9006cc:	3a200068 	bcc	1100874 <__bss_end+0x7ed018>
  9006d0:	2c352854 	ldccs	8, cr2, [r5], -#336
  9006d4:	653d2931 	ldrvs	r2, [sp, -#2353]!
  9006d8:	4f425f63 	swimi	0x00425f63
  9006dc:	444c544f 	strmib	r5, [r12], -#1103
  9006e0:	2c303a52 	ldccs	10, cr3, [r0], -#328
  9006e4:	41505f63 	cmpmi	r0, r3, ror #30
  9006e8:	534d4152 	cmppl	sp, #-2147483628	; 0x80000014
  9006ec:	632c313a 	teqvs	r12, #-2147483634	; 0x8000000e
  9006f0:	52454b5f 	subpl	r4, r5, #97280	; 0x17c00
  9006f4:	3a4c454e 	bcc	1c11c34 <__bss_end+0x12fe3d8>
  9006f8:	5f632c32 	swipl	0x00632c32
  9006fc:	454c4946 	strmib	r4, [r12, -#2374]
  900700:	3a535953 	bcc	1dd6c54 <__bss_end+0x14c33f8>
  900704:	5f632c33 	swipl	0x00632c33
  900708:	3a444e45 	bcc	1a14024 <__bss_end+0x11007c8>
  90070c:	003b2c34 	eoreqs	r2, r11, r4, lsr r12
  900710:	706d6f63 	rsbvc	r6, sp, r3, ror #30
  900714:	743a745f 	ldrvct	r7, [r10], -#1119
  900718:	322c3528 	eorcc	r3, r12, #167772160	; 0xa000000
  90071c:	35283d29 	strcc	r3, [r8, -#3369]!
  900720:	0029312c 	eoreq	r3, r9, r12, lsr #2
  900724:	28543a20 	ldmcsda	r4, {r5, r9, r11, r12, sp}^
  900728:	29332c35 	ldmcsdb	r3!, {r0, r2, r4, r5, r10, r11, sp}
  90072c:	6473653d 	ldrvsbt	r6, [r3], -#1341
  900730:	5244535f 	subpl	r5, r4, #2080374785	; 0x7c000001
  900734:	303a4d41 	eorccs	r4, r10, r1, asr #26
  900738:	5f64732c 	swipl	0x0064732c
  90073c:	4d415253 	sfmmi	f5, 2, [r1, -#332]
  900740:	732c313a 	teqvc	r12, #-2147483634	; 0x8000000e
  900744:	4c465f64 	stcmil	15, cr5, [r6], -#400
  900748:	3a485341 	bcc	1b15454 <__bss_end+0x1201bf8>
  90074c:	64732c32 	ldrvsbt	r2, [r3], -#3122
  900750:	5446545f 	strplb	r5, [r6], -#1119
  900754:	2c333a50 	ldccs	10, cr3, [r3], -#320
  900758:	535f6473 	cmppl	pc, #1929379840	; 0x73000000
  90075c:	4f505245 	swimi	0x00505245
  900760:	343a5452 	ldrcct	r5, [r10], -#1106
  900764:	5f64732c 	swipl	0x0064732c
  900768:	50524150 	subpls	r4, r2, r0, asr r1
  90076c:	3a54524f 	bcc	1e150b0 <__bss_end+0x1501854>
  900770:	003b2c35 	eoreqs	r2, r11, r5, lsr r12
  900774:	5f637273 	swipl	0x00637273
  900778:	74736564 	ldrvcbt	r6, [r3], -#1380
  90077c:	743a745f 	ldrvct	r7, [r10], -#1119
  900780:	342c3528 	strcct	r3, [r12], -#1320
  900784:	35283d29 	strcc	r3, [r8, -#3369]!
  900788:	0029332c 	eoreq	r3, r9, r12, lsr #6
  90078c:	28543a20 	ldmcsda	r4, {r5, r9, r11, r12, sp}^
  900790:	29352c35 	ldmcsdb	r5!, {r0, r2, r4, r5, r10, r11, sp}
  900794:	5f66653d 	swipl	0x0066653d
  900798:	303a414e 	eorccs	r4, r10, lr, asr #2
  90079c:	535f662c 	cmppl	pc, #46137344	; 0x2c00000
  9007a0:	3a434552 	bcc	19d1cf0 <__bss_end+0x10be494>
  9007a4:	5f662c31 	swipl	0x00662c31
  9007a8:	425f5252 	submis	r5, pc, #536870917	; 0x20000005
  9007ac:	52414e49 	subpl	r4, r1, #1168	; 0x490
  9007b0:	2c323a59 	ldccs	10, cr3, [r2], -#356
  9007b4:	6f70003b 	swivs	0x0070003b
  9007b8:	665f7472 	undefined
  9007bc:	616d726f 	cmnvs	sp, pc, ror #4
  9007c0:	3a745f74 	bcc	2618598 <__bss_end+0x1d04d3c>
  9007c4:	2c352874 	ldccs	8, cr2, [r5], -#464
  9007c8:	283d2936 	ldmcsda	sp!, {r1, r2, r4, r5, r8, r11, sp}
  9007cc:	29352c35 	ldmcsdb	r5!, {r0, r2, r4, r5, r10, r11, sp}
  9007d0:	72617000 	rsbvc	r7, r1, #0	; 0x0
  9007d4:	5f736d61 	swipl	0x00736d61
  9007d8:	28743a74 	ldmcsda	r4!, {r2, r4, r5, r6, r9, r11, r12, sp}^
  9007dc:	29372c35 	ldmcsdb	r7!, {r0, r2, r4, r5, r10, r11, sp}
  9007e0:	2c35283d 	ldccs	8, cr2, [r5], -#244
  9007e4:	733d2938 	teqvc	sp, #917504	; 0xe0000
  9007e8:	34303432 	ldrcct	r3, [r0], -#1074
  9007ec:	69766564 	ldmvsdb	r6!, {r2, r5, r6, r8, r10, sp, lr}^
  9007f0:	4d5f6563 	ldcmil	5, cr6, [pc, -#396]
  9007f4:	283a4341 	ldmcsda	r10!, {r0, r6, r8, r9, lr}
  9007f8:	29392c35 	ldmcsdb	r9!, {r0, r2, r4, r5, r10, r11, sp}
  9007fc:	2872613d 	ldmcsda	r2!, {r0, r2, r3, r4, r5, r8, sp, lr}^
  900800:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  900804:	313b303b 	teqcc	r11, r11, lsr r0
  900808:	283b3939 	ldmcsda	r11!, {r0, r3, r4, r5, r8, r11, r12, sp}
  90080c:	29322c30 	ldmcsdb	r2!, {r4, r5, r10, r11, sp}
  900810:	312c302c 	teqcc	r12, r12, lsr #32
  900814:	3b303036 	blcc	150c8f4 <__bss_end+0xbf9098>
  900818:	76726573 	undefined
  90081c:	495f7265 	ldmmidb	pc, {r0, r2, r5, r6, r9, r12, sp, lr}^
  900820:	35283a50 	strcc	r3, [r8, -#2640]!
  900824:	2c29392c 	stccs	9, cr3, [r9], -#176
  900828:	30303631 	eorccs	r3, r0, r1, lsr r6
  90082c:	3036312c 	eorccs	r3, r6, r12, lsr #2
  900830:	65733b30 	ldrvsb	r3, [r3, -#2864]!
  900834:	72657672 	rsbvc	r7, r5, #119537664	; 0x7200000
  900838:	43414d5f 	cmpmi	r1, #6080	; 0x17c0
  90083c:	2c35283a 	ldccs	8, cr2, [r5], -#232
  900840:	332c2939 	teqcc	r12, #933888	; 0xe4000
  900844:	2c303032 	ldccs	0, cr3, [r0], -#200
  900848:	30303631 	eorccs	r3, r0, r1, lsr r6
  90084c:	7665643b 	undefined
  900850:	5f656369 	swipl	0x00656369
  900854:	283a5049 	ldmcsda	r10!, {r0, r3, r6, r12, lr}
  900858:	29392c35 	ldmcsdb	r9!, {r0, r2, r4, r5, r10, r11, sp}
  90085c:	3038342c 	eorccs	r3, r8, r12, lsr #8