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

  9010a8:	74786574 	ldrvcbt	r6, [r8], -#1396
  9010ac:	6464615f 	strvsbt	r6, [r4], -#351
  9010b0:	30283a72 	eorcc	r3, r8, r2, ror r10
  9010b4:	0029312c 	eoreq	r3, r9, r12, lsr #2
  9010b8:	78657465 	stmvcda	r5!, {r0, r2, r5, r6, r10, r12, sp, lr}^
  9010bc:	64615f74 	strvsbt	r5, [r1], -#3956
  9010c0:	283a7264 	ldmcsda	r10!, {r2, r5, r6, r9, r12, sp, lr}
  9010c4:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  9010c8:	78657400 	stmvcda	r5!, {r10, r12, sp, lr}^
  9010cc:	666f5f74 	undefined
  9010d0:	74657366 	strvcbt	r7, [r5], -#870
  9010d4:	2c30283a 	ldccs	8, cr2, [r0], -#232
  9010d8:	76002931 	undefined
  9010dc:	66697265 	strvsbt	r7, [r9], -r5, ror #4
  9010e0:	64735f79 	ldrvsbt	r5, [r3], -#3961
  9010e4:	5f6d6172 	swipl	0x006d6172
  9010e8:	756e656d 	strvcb	r6, [lr, -#1389]!
  9010ec:	3028663a 	eorcc	r6, r8, r10, lsr r6
  9010f0:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  9010f4:	6d756400 	ldcvsl	4, cr6, [r5]
  9010f8:	656d5f70 	strvsb	r5, [sp, -#3952]!
  9010fc:	79726f6d 	ldmvcdb	r2!, {r0, r2, r3, r5, r6, r8, r9, r10, r11, sp, lr}^
  901100:	3028663a 	eorcc	r6, r8, r10, lsr r6
  901104:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  901108:	64646100 	strvsbt	r6, [r4], -#256
  90110c:	72747372 	rsbvcs	r7, r4, #-939524095	; 0xc8000001
  901110:	2c30283a 	ldccs	8, cr2, [r0], -#232
  901114:	00293932 	eoreq	r3, r9, r2, lsr r9
  901118:	736e656c 	cmnvc	lr, #452984832	; 0x1b000000
  90111c:	283a7274 	ldmcsda	r10!, {r2, r4, r5, r6, r9, r12, sp, lr}
  901120:	39322c30 	ldmccdb	r2!, {r4, r5, r10, r11, sp}
  901124:	64610029 	strvsbt	r0, [r1], -#41
  901128:	283a7264 	ldmcsda	r10!, {r2, r5, r6, r9, r12, sp, lr}
  90112c:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  901130:	656c7200 	strvsb	r7, [r12, -#512]!
  901134:	30283a6e 	eorcc	r3, r8, lr, ror #20
  901138:	0029312c 	eoreq	r3, r9, r12, lsr #2
  90113c:	756e656d 	strvcb	r6, [lr, -#1389]!
  901140:	646f6d5f 	strvsbt	r6, [pc], #d5f	; 901148 <L_STACK_UNTOUCHED_MAGIC+0x105c>
  901144:	28663a65 	stmcsda	r6!, {r0, r2, r5, r6, r9, r11, r12, sp}^
  901148:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  90114c:	72700029 	rsbvcs	r0, r0, #41	; 0x29
  901150:	7365636f 	cmnvc	r5, #-1140850687	; 0xbc000001
  901154:	65645f73 	strvsb	r5, [r4, -#3955]!
  901158:	6c756166 	ldfvse	f6, [r5], -#408
  90115c:	6f625f74 	swivs	0x00625f74
  901160:	635f746f 	cmpvs	pc, #1862270976	; 0x6f000000
  901164:	663a646d 	ldrvst	r6, [r10], -sp, ror #8
  901168:	312c3028 	teqcc	r12, r8, lsr #32
  90116c:	63002939 	tstvs	r0, #933888	; 0xe4000
  901170:	616d6d6f 	cmnvs	sp, pc, ror #26
  901174:	703a646e 	eorvcs	r6, r10, lr, ror #8
  901178:	322c3028 	eorcc	r3, r12, #40	; 0x28
  90117c:	63002936 	tstvs	r0, #884736	; 0xd8000
  901180:	30283a68 	eorcc	r3, r8, r8, ror #20
  901184:	2931312c 	ldmcsdb	r1!, {r2, r3, r5, r8, r12, sp}
  901188:	69616d00 	stmvsdb	r1!, {r8, r10, r11, sp, lr}^
  90118c:	28463a6e 	stmcsda	r6, {r1, r2, r3, r5, r6, r9, r11, r12, sp}^
  901190:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  901194:	67726100 	ldrvsb	r6, [r2, -r0, lsl #2]!
  901198:	28703a63 	ldmcsda	r0!, {r0, r1, r5, r6, r9, r11, r12, sp}^
  90119c:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  9011a0:	67726100 	ldrvsb	r6, [r2, -r0, lsl #2]!
  9011a4:	28703a76 	ldmcsda	r0!, {r1, r2, r4, r5, r6, r9, r11, r12, sp}^
  9011a8:	30332c30 	eorccs	r2, r3, r0, lsr r12
  9011ac:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  9011b0:	31322c30 	teqcc	r2, r0, lsr r12
  9011b4:	6d630029 	stcvsl	0, cr0, [r3, -#164]!
  9011b8:	28473a64 	stmcsda	r7, {r2, r5, r6, r9, r11, r12, sp}^
  9011bc:	31332c30 	teqcc	r3, r0, lsr r12
  9011c0:	72613d29 	rsbvc	r3, r1, #2624	; 0xa40
  9011c4:	312c3028 	teqcc	r12, r8, lsr #32
  9011c8:	3b303b29 	blcc	150fe74 <__bss_end+0xbfabc8>
  9011cc:	30283b39 	eorcc	r3, r8, r9, lsr r11
  9011d0:	2931312c 	ldmcsdb	r1!, {r2, r3, r5, r8, r12, sp}
  9011d4:	74656d00 	strvcbt	r6, [r5], -#3328
  9011d8:	6c5f7265 	lfmvs	f7, 2, [pc], -#404
  9011dc:	5f656e69 	swipl	0x00656e69
  9011e0:	3a6e656c 	bcc	249a798 <__bss_end+0x1b854ec>
  9011e4:	2c302853 	ldccs	8, cr2, [r0], -#332
  9011e8:	55002931 	strpl	r2, [r0, -#2353]
  9011ec:	6f6d5f49 	swivs	0x006d5f49
  9011f0:	533a6564 	teqpl	r10, #419430400	; 0x19000000
  9011f4:	312c3028 	teqcc	r12, r8, lsr #32
  9011f8:	70002931 	andvc	r2, r0, r1, lsr r9
  9011fc:	533a7261 	teqpl	r10, #268435462	; 0x10000006
  901200:	332c3028 	teqcc	r12, #40	; 0x28
  901204:	2a3d2932 	bcs	184b6d4 <__bss_end+0xf36428>
  901208:	372c3528 	strcc	r3, [r12, -r8, lsr #10]!
  90120c:	74620029 	strvcbt	r0, [r2], -#41
  901210:	5f72646c 	swipl	0x0072646c
  901214:	632e6970 	teqvs	lr, #1835008	; 0x1c0000
  901218:	74656e00 	strvcbt	r6, [r5], -#3584
  90121c:	6500682e 	strvs	r6, [r0, -#2094]
  901220:	72656874 	rsbvc	r6, r5, #7602176	; 0x740000
  901224:	2000682e 	andcs	r6, r0, lr, lsr #16
  901228:	3728543a 	undefined
  90122c:	3d29312c 	stfccs	f3, [r9, -#176]!
  901230:	4e455365 	cdpmi	3, 4, cr5, cr5, cr5, {3}
  901234:	4e415f44 	cdpmi	15, 4, cr5, cr1, cr4, {2}
  901238:	45475f44 	strmib	r5, [r7, -#3908]
  90123c:	45525f54 	ldrmib	r5, [r2, -#3924]
  901240:	3a594c50 	bcc	1f54388 <__bss_end+0x163f0dc>
  901244:	45532c30 	ldrmib	r2, [r3, -#3120]
  901248:	313a444e 	teqcc	r10, lr, asr #8
  90124c:	4345522c 	cmpmi	r5, #-1073741822	; 0xc0000002
  901250:	2c323a56 	ldccs	10, cr3, [r2], -#344
  901254:	53554c46 	cmppl	r5, #17920	; 0x4600
  901258:	2c333a48 	ldccs	10, cr3, [r3], -#288
  90125c:	7573003b 	ldrvcb	r0, [r3, -#59]!
  901260:	74696d62 	strvcbt	r6, [r9], -#3426
  901264:	646f6d5f 	strvsbt	r6, [pc], #d5f	; 90126c <L_STACK_UNTOUCHED_MAGIC+0x1180>
  901268:	28743a65 	ldmcsda	r4!, {r0, r2, r5, r6, r9, r11, r12, sp}^
  90126c:	29322c37 	ldmcsdb	r2!, {r0, r1, r2, r4, r5, r10, r11, sp}
  901270:	2c37283d 	ldccs	8, cr2, [r7], -#244
  901274:	65002931 	strvs	r2, [r0, -#2353]
  901278:	72656874 	rsbvc	r6, r5, #7602176	; 0x740000
  90127c:	7264685f 	rsbvc	r6, r4, #6225920	; 0x5f0000
  901280:	743a745f 	ldrvct	r7, [r10], -#1119
  901284:	312c3628 	teqcc	r12, r8, lsr #12
  901288:	36283d29 	strcct	r3, [r8], -r9, lsr #26
  90128c:	3d29322c 	sfmcc	f3, 4, [r9, -#176]!
  901290:	64343173 	ldrvst	r3, [r4], -#371
  901294:	5f747365 	swipl	0x00747365
  901298:	72646461 	rsbvc	r6, r4, #1627389952	; 0x61000000
  90129c:	2c36283a 	ldccs	8, cr2, [r6], -#232
  9012a0:	613d2933 	teqvs	sp, r3, lsr r9
  9012a4:	2c302872 	ldccs	8, cr2, [r0], -#456
  9012a8:	303b2931 	eorccs	r2, r11, r1, lsr r9
  9012ac:	283b353b 	ldmcsda	r11!, {r0, r1, r3, r4, r5, r8, r10, r12, sp}
  9012b0:	31312c30 	teqcc	r1, r0, lsr r12
  9012b4:	2c302c29 	ldccs	12, cr2, [r0], -#164
  9012b8:	733b3834 	teqvc	r11, #3407872	; 0x340000
  9012bc:	615f6372 	cmpvs	pc, r2, ror r3
  9012c0:	3a726464 	bcc	259a458 <__bss_end+0x1c851ac>
  9012c4:	332c3628 	teqcc	r12, #41943040	; 0x2800000
  9012c8:	38342c29 	ldmccda	r4!, {r0, r3, r5, r10, r11, sp}
  9012cc:	3b38342c 	blcc	170e384 <__bss_end+0xdf90d8>
  9012d0:	6d617266 	sfmvs	f7, 2, [r1, -#408]!
  9012d4:	79745f65 	ldmvcdb	r4!, {r0, r2, r5, r6, r8, r9, r10, r11, r12, lr}^
  9012d8:	283a6570 	ldmcsda	r10!, {r4, r5, r6, r8, r10, sp, lr}
  9012dc:	29392c30 	ldmcsdb	r9!, {r4, r5, r10, r11, sp}
  9012e0:	2c36392c 	ldccs	9, cr3, [r6], -#176
  9012e4:	3b3b3631 	blcc	17cebb0 <__bss_end+0xeb9904>
  9012e8:	5f706900 	swipl	0x00706900
  9012ec:	5f726468 	swipl	0x00726468
  9012f0:	28743a74 	ldmcsda	r4!, {r2, r4, r5, r6, r9, r11, r12, sp}^
  9012f4:	29342c36 	ldmcsdb	r4!, {r1, r2, r4, r5, r10, r11, sp}
  9012f8:	2c36283d 	ldccs	8, cr2, [r6], -#244
  9012fc:	733d2935 	teqvc	sp, #868352	; 0xd4000
  901300:	65763032 	ldrvsb	r3, [r6, -#50]!
  901304:	685f7372 	ldmvsda	pc, {r1, r4, r5, r6, r8, r9, r12, sp, lr}^
  901308:	3a6e656c 	bcc	249a8c0 <__bss_end+0x1b85614>
  90130c:	312c3028 	teqcc	r12, r8, lsr #32
  901310:	302c2931 	eorcc	r2, r12, r1, lsr r9
  901314:	733b382c 	teqvc	r11, #2883584	; 0x2c0000
  901318:	5f767265 	swipl	0x00767265
  90131c:	65707974 	ldrvsb	r7, [r0, -#2420]!
  901320:	2c30283a 	ldccs	8, cr2, [r0], -#232
  901324:	2c293131 	stfcss	f3, [r9], -#196
  901328:	3b382c38 	blcc	170c410 <__bss_end+0xdf7164>
  90132c:	5f746f74 	swipl	0x00746f74
  901330:	3a6e656c 	bcc	249a8e8 <__bss_end+0x1b8563c>
  901334:	392c3028 	stmccdb	r12!, {r3, r5, r12, sp}
  901338:	36312c29 	ldrcct	r2, [r1], -r9, lsr #24
  90133c:	3b36312c 	blcc	168d7f4 <__bss_end+0xd78548>
  901340:	6e656469 	cdpvs	4, 6, cr6, cr5, cr9, {3}
  901344:	30283a74 	eorcc	r3, r8, r4, ror r10
  901348:	2c29392c 	stccs	9, cr3, [r9], -#176
  90134c:	312c3233 	teqcc	r12, r3, lsr r2
  901350:	6c663b36 	stcvsl	11, cr3, [r6], -#216
  901354:	5f736761 	swipl	0x00736761
  901358:	67617266 	strvsb	r7, [r1, -r6, ror #4]!
  90135c:	7366666f 	cmnvc	r6, #116391936	; 0x6f00000
  901360:	283a7465 	ldmcsda	r10!, {r0, r2, r5, r6, r10, r12, sp, lr}
  901364:	29392c30 	ldmcsdb	r9!, {r4, r5, r10, r11, sp}
  901368:	2c38342c 	ldccs	4, cr3, [r8], -#176
  90136c:	743b3631 	ldrvct	r3, [r11], -#1585
  901370:	74656d69 	strvcbt	r6, [r5], -#3433
  901374:	76696c6f 	strvcbt	r6, [r9], -pc, ror #24
  901378:	30283a65 	eorcc	r3, r8, r5, ror #20
  90137c:	2931312c 	ldmcsdb	r1!, {r2, r3, r5, r8, r12, sp}
  901380:	2c34362c 	ldccs	6, cr3, [r4], -#176
  901384:	72703b38 	rsbvcs	r3, r0, #57344	; 0xe000
  901388:	636f746f 	cmnvs	pc, #1862270976	; 0x6f000000
  90138c:	283a6c6f 	ldmcsda	r10!, {r0, r1, r2, r3, r5, r6, r10, r11, sp, lr}
  901390:	31312c30 	teqcc	r1, r0, lsr r12
  901394:	32372c29 	eorccs	r2, r7, #10496	; 0x2900
  901398:	683b382c 	ldmvsda	r11!, {r2, r3, r5, r11, r12, sp}
  90139c:	635f7264 	cmpvs	pc, #1073741830	; 0x40000006
  9013a0:	75736b68 	ldrvcb	r6, [r3, -#2920]!
  9013a4:	30283a6d 	eorcc	r3, r8, sp, ror #20
  9013a8:	2c29392c 	stccs	9, cr3, [r9], -#176
  9013ac:	312c3038 	teqcc	r12, r8, lsr r0
  9013b0:	72733b36 	rsbvcs	r3, r3, #55296	; 0xd800
  9013b4:	50495f63 	subpl	r5, r9, r3, ror #30
  9013b8:	6464615f 	strvsbt	r6, [r4], -#351
  9013bc:	30283a72 	eorcc	r3, r8, r2, ror r10
  9013c0:	2c29352c 	stccs	5, cr3, [r9], -#176
  9013c4:	332c3639 	teqcc	r12, #59768832	; 0x3900000
  9013c8:	65643b32 	strvsb	r3, [r4, -#2866]!
  9013cc:	495f7473 	ldmmidb	pc, {r0, r1, r4, r5, r6, r10, r12, sp, lr}^
  9013d0:	64615f50 	strvsbt	r5, [r1], -#3920
  9013d4:	283a7264 	ldmcsda	r10!, {r2, r5, r6, r9, r12, sp, lr}
  9013d8:	29352c30 	ldmcsdb	r5!, {r4, r5, r10, r11, sp}
  9013dc:	3832312c 	ldmccda	r2!, {r2, r3, r5, r8, r12, sp}
  9013e0:	3b32332c 	blcc	158e098 <__bss_end+0xc78dec>
  9013e4:	6475003b 	ldrvsbt	r0, [r5], -#59
  9013e8:	64685f70 	strvsbt	r5, [r8], -#3952
  9013ec:	3a745f72 	bcc	26191bc <__bss_end+0x1d03f10>
  9013f0:	2c362874 	ldccs	8, cr2, [r6], -#464
  9013f4:	283d2936 	ldmcsda	sp!, {r1, r2, r4, r5, r8, r11, sp}
  9013f8:	29372c36 	ldmcsdb	r7!, {r1, r2, r4, r5, r10, r11, sp}
  9013fc:	7338733d 	teqvc	r8, #-201326592	; 0xf4000000
  901400:	705f6372 	subvcs	r6, pc, r2, ror r3
  901404:	3a74726f 	bcc	261ddc8 <__bss_end+0x1d08b1c>
  901408:	392c3028 	stmccdb	r12!, {r3, r5, r12, sp}
  90140c:	2c302c29 	ldccs	12, cr2, [r0], -#164
  901410:	643b3631 	ldrvst	r3, [r11], -#1585
  901414:	5f747365 	swipl	0x00747365
  901418:	74726f70 	ldrvcbt	r6, [r2], -#3952
  90141c:	2c30283a 	ldccs	8, cr2, [r0], -#232
  901420:	312c2939 	teqcc	r12, r9, lsr r9
  901424:	36312c36 	undefined
  901428:	746f743b 	strvcbt	r7, [pc], #43b	; 901430 <L_STACK_UNTOUCHED_MAGIC+0x1344>
  90142c:	6e656c5f 	mcrvs	12, 3, r6, cr5, cr15, {2}
  901430:	2c30283a 	ldccs	8, cr2, [r0], -#232
  901434:	332c2939 	teqcc	r12, #933888	; 0xe4000
  901438:	36312c32 	undefined
  90143c:	6b68633b 	blvs	231a130 <__bss_end+0x1a04e84>
  901440:	3a6d7573 	bcc	245ea14 <__bss_end+0x1b49768>
  901444:	392c3028 	stmccdb	r12!, {r3, r5, r12, sp}
  901448:	38342c29 	ldmccda	r4!, {r0, r3, r5, r10, r11, sp}
  90144c:	3b36312c 	blcc	168d904 <__bss_end+0xd78658>
  901450:	6674003b 	undefined
  901454:	682e7074 	stmvsda	lr!, {r2, r4, r5, r6, r12, sp, lr}
  901458:	65727300 	ldrvsb	r7, [r2, -#768]!
  90145c:	00682e63 	rsbeq	r2, r8, r3, ror #28
  901460:	62776172 	rsbvss	r6, r7, #-2147483620	; 0x8000001c
  901464:	682e6e69 	stmvsda	lr!, {r0, r3, r5, r6, r9, r10, r11, sp, lr}
  901468:	64736f00 	ldrvsbt	r6, [r3], -#3840
  90146c:	6400682e 	strvs	r6, [r0], -#2094
  901470:	6d6f6365 	stcvsl	3, cr6, [pc, -#404]!
  901474:	73657270 	cmnvc	r5, #7	; 0x7
  901478:	00682e73 	rsbeq	r2, r8, r3, ror lr
  90147c:	68636163 	stmvsda	r3!, {r0, r1, r5, r6, r8, sp, lr}^
  901480:	00682e65 	rsbeq	r2, r8, r5, ror #28
  901484:	756e696c 	strvcb	r6, [lr, -#2412]!
  901488:	00682e78 	rsbeq	r2, r8, r8, ror lr
  90148c:	743a3875 	ldrvct	r3, [r10], -#2165
  901490:	2c353128 	ldfcss	f3, [r5], -#160
  901494:	283d2931 	ldmcsda	sp!, {r0, r4, r5, r8, r11, sp}
  901498:	31312c30 	teqcc	r1, r0, lsr r12
  90149c:	31750029 	cmncc	r5, r9, lsr #32
  9014a0:	28743a36 	ldmcsda	r4!, {r1, r2, r4, r5, r9, r11, r12, sp}^
  9014a4:	322c3531 	eorcc	r3, r12, #205520896	; 0xc400000
  9014a8:	30283d29 	eorcc	r3, r8, r9, lsr #26
  9014ac:	0029392c 	eoreq	r3, r9, r12, lsr #18
  9014b0:	3a323375 	bcc	158e28c <__bss_end+0xc78fe0>
  9014b4:	35312874 	ldrcc	r2, [r1, -#2164]!
  9014b8:	3d29332c 	stccc	3, cr3, [r9, -#176]!
  9014bc:	342c3028 	strcct	r3, [r12], -#40
  9014c0:	61700029 	cmnvs	r0, r9, lsr #32
  9014c4:	5f6d6172 	swipl	0x006d6172
  9014c8:	75727473 	ldrvcb	r7, [r2, -#1139]!
  9014cc:	543a7463 	ldrplt	r7, [r10], -#1123
  9014d0:	2c353128 	ldfcss	f3, [r5], -#160
  9014d4:	733d2934 	teqvc	sp, #851968	; 0xd0000
  9014d8:	34303332 	ldrcct	r3, [r0], -#818
  9014dc:	283a3175 	ldmcsda	r10!, {r0, r2, r4, r5, r6, r8, r12, sp}
  9014e0:	352c3531 	strcc	r3, [r12, -#1329]!
  9014e4:	32753d29 	rsbccs	r3, r5, #2624	; 0xa40
  9014e8:	3a733635 	bcc	25cedc4 <__bss_end+0x1cb9b18>
  9014ec:	2c353128 	ldfcss	f3, [r5], -#160
  9014f0:	733d2936 	teqvc	sp, #884736	; 0xd8000
  9014f4:	61703239 	cmnvs	r0, r9,