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

  900c48:	6c6c6143 	stfvse	f6, [r12], -#268
  900c4c:	6b636142 	blvs	21d915c <__bss_end+0x18c3eb0>
  900c50:	743a745f 	ldrvct	r7, [r10], -#1119
  900c54:	312c3628 	teqcc	r12, r8, lsr #12
  900c58:	36283d29 	strcct	r3, [r8], -r9, lsr #26
  900c5c:	3d29322c 	sfmcc	f3, 4, [r9, -#176]!
  900c60:	2c36282a 	ldccs	8, cr2, [r6], -#168
  900c64:	663d2933 	undefined
  900c68:	312c3028 	teqcc	r12, r8, lsr #32
  900c6c:	47002931 	undefined
  900c70:	61567465 	cmpvs	r6, r5, ror #8
  900c74:	4174416c 	cmnmi	r4, r12, ror #2
  900c78:	43726464 	cmnmi	r2, #1677721600	; 0x64000000
  900c7c:	426c6c61 	rsbmi	r6, r12, #24832	; 0x6100
  900c80:	5f6b6361 	swipl	0x006b6361
  900c84:	28743a74 	ldmcsda	r4!, {r2, r4, r5, r6, r9, r11, r12, sp}^
  900c88:	29342c36 	ldmcsdb	r4!, {r1, r2, r4, r5, r10, r11, sp}
  900c8c:	2c36283d 	ldccs	8, cr2, [r6], -#244
  900c90:	2a3d2935 	bcs	184b16c <__bss_end+0xf35ec0>
  900c94:	362c3628 	strcct	r3, [r12], -r8, lsr #12
  900c98:	28663d29 	stmcsda	r6!, {r0, r3, r5, r8, r10, r11, r12, sp}^
  900c9c:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900ca0:	75500029 	ldrvcb	r0, [r0, -#41]
  900ca4:	6c615674 	stcvsl	6, cr5, [r1], -#464
  900ca8:	64417441 	strvsb	r7, [r1], -#1089
  900cac:	61437264 	cmpvs	r3, r4, ror #4
  900cb0:	61426c6c 	cmpvs	r2, r12, ror #24
  900cb4:	745f6b63 	ldrvcb	r6, [pc], #b63	; 900cbc <L_STACK_UNTOUCHED_MAGIC+0xbd0>
  900cb8:	3628743a 	undefined
  900cbc:	3d29372c 	stccc	7, cr3, [r9, -#176]!
  900cc0:	382c3628 	stmccda	r12!, {r3, r5, r9, r10, r12, sp}
  900cc4:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  900cc8:	29392c36 	ldmcsdb	r9!, {r1, r2, r4, r5, r10, r11, sp}
  900ccc:	3028663d 	eorcc	r6, r8, sp, lsr r6
  900cd0:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900cd4:	72657600 	rsbvc	r7, r5, #0	; 0x0
  900cd8:	6e6f6973 	mcrvs	9, 3, r6, cr15, cr3, {3}
  900cdc:	7000682e 	andvc	r6, r0, lr, lsr #16
  900ce0:	6f43706d 	swivs	0x0043706d
  900ce4:	6769666e 	strvsb	r6, [r9, -lr, ror #12]!
  900ce8:	6900682e 	stmvsdb	r0, {r1, r2, r3, r5, r11, sp, lr}
  900cec:	6c61766e 	stcvsl	6, cr7, [r1], -#440
  900cf0:	635f6469 	cmpvs	pc, #1761607680	; 0x69000000
  900cf4:	616d6d6f 	cmnvs	sp, pc, ror #26
  900cf8:	663a646e 	ldrvst	r6, [r10], -lr, ror #8
  900cfc:	312c3028 	teqcc	r12, r8, lsr #32
  900d00:	70002939 	andvc	r2, r0, r9, lsr r9
  900d04:	72676f72 	rsbvc	r6, r7, #456	; 0x1c8
  900d08:	5f737365 	swipl	0x00737365
  900d0c:	6574656d 	ldrvsb	r6, [r4, -#1389]!
  900d10:	28663a72 	stmcsda	r6!, {r1, r4, r5, r6, r9, r11, r12, sp}^
  900d14:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900d18:	6c630029 	stcvsl	0, cr0, [r3], -#164
  900d1c:	3a726165 	bcc	25992b8 <__bss_end+0x1c8400c>
  900d20:	2c302866 	ldccs	8, cr2, [r0], -#408
  900d24:	00293931 	eoreq	r3, r9, r1, lsr r9
  900d28:	705f6f64 	subvcs	r6, pc, r4, ror #30
  900d2c:	6d617261 	sfmvs	f7, 2, [r1, -#388]!
  900d30:	73696c5f 	cmnvc	r9, #24320	; 0x5f00
  900d34:	676e6974 	undefined
  900d38:	3028463a 	eorcc	r4, r8, r10, lsr r6
  900d3c:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900d40:	6e696600 	cdpvs	6, 6, cr6, cr9, cr0, {0}
  900d44:	61705f64 	cmnvs	r0, r4, ror #30
  900d48:	3a6d6172 	bcc	2459318 <__bss_end+0x1b4406c>
  900d4c:	2c302866 	ldccs	8, cr2, [r0], -#408
  900d50:	70002931 	andvc	r2, r0, r1, lsr r9
  900d54:	6d617261 	sfmvs	f7, 2, [r1, -#388]!
  900d58:	3028703a 	eorcc	r7, r8, r10, lsr r0
  900d5c:	2931322c 	ldmcsdb	r1!, {r2, r3, r5, r9, r12, sp}
  900d60:	30282a3d 	eorcc	r2, r8, sp, lsr r10
  900d64:	0029322c 	eoreq	r3, r9, r12, lsr #4
  900d68:	656e696c 	strvsb	r6, [lr, -#2412]!
  900d6c:	3028703a 	eorcc	r7, r8, r10, lsr r0
  900d70:	2931322c 	ldmcsdb	r1!, {r2, r3, r5, r9, r12, sp}
  900d74:	756f6600 	strvcb	r6, [pc, #fffffa00]!	; 90077c <L_STACK_UNTOUCHED_MAGIC+0x690>
  900d78:	283a646e 	ldmcsda	r10!, {r1, r2, r3, r5, r6, r10, sp, lr}
  900d7c:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  900d80:	695f6c00 	ldmvsdb	pc, {r10, r11, sp, lr}^
  900d84:	7865646e 	stmvcda	r5!, {r1, r2, r3, r5, r6, r10, sp, lr}^
  900d88:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900d8c:	6a002931 	bvs	90b258 <util_hexstrtobyte+0x10c>
  900d90:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900d94:	6b002931 	blvs	90b260 <util_hexstrtobyte+0x114>
  900d98:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900d9c:	64002931 	strvs	r2, [r0], -#2353
  900da0:	65735f6f 	ldrvsb	r5, [r3, -#3951]!
  900da4:	6f635f74 	swivs	0x00635f74
  900da8:	6e616d6d 	cdpvs	13, 6, cr6, cr1, cr13, {3}
  900dac:	28663a64 	stmcsda	r6!, {r2, r5, r6, r9, r11, r12, sp}^
  900db0:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900db4:	61700029 	cmnvs	r0, r9, lsr #32
  900db8:	3a6d6172 	bcc	2459388 <__bss_end+0x1b440dc>
  900dbc:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900dc0:	613d2932 	teqvs	sp, r2, lsr r9
  900dc4:	2c302872 	ldccs	8, cr2, [r0], -#456
  900dc8:	303b2931 	eorccs	r2, r11, r1, lsr r9
  900dcc:	3b39393b 	blcc	174f2c0 <__bss_end+0xe3a014>
  900dd0:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900dd4:	61760029 	cmnvs	r6, r9, lsr #32
  900dd8:	30283a6c 	eorcc	r3, r8, r12, ror #20
  900ddc:	2931322c 	ldmcsdb	r1!, {r2, r3, r5, r9, r12, sp}
  900de0:	5f6f6400 	swipl	0x006f6400
  900de4:	73617265 	cmnvc	r1, #1342177286	; 0x50000006
  900de8:	6c665f65 	stcvsl	15, cr5, [r6], -#404
  900dec:	5f687361 	swipl	0x00687361
  900df0:	3a646d63 	bcc	221c384 <__bss_end+0x19070d8>
  900df4:	2c302866 	ldccs	8, cr2, [r0], -#408
  900df8:	00293931 	eoreq	r3, r9, r1, lsr r9
  900dfc:	61726170 	cmnvs	r2, r0, ror r1
  900e00:	30283a6d 	eorcc	r3, r8, sp, ror #20
  900e04:	2932322c 	ldmcsdb	r2!, {r2, r3, r5, r9, r12, sp}
  900e08:	6e696600 	cdpvs	6, 6, cr6, cr9, cr0, {0}
  900e0c:	6f635f64 	swivs	0x00635f64
  900e10:	663a706d 	ldrvst	r7, [r10], -sp, rrx
  900e14:	312c3028 	teqcc	r12, r8, lsr #32
  900e18:	6f630029 	swivs	0x00630029
  900e1c:	703a706d 	eorvcs	r7, r10, sp, rrx
  900e20:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900e24:	2a3d2933 	bcs	184b2f8 <__bss_end+0xf3604c>
  900e28:	322c3528 	eorcc	r3, r12, #167772160	; 0xa000000
  900e2c:	69660029 	stmvsdb	r6!, {r0, r3, r5}^
  900e30:	735f646e 	cmpvc	pc, #1845493760	; 0x6e000000
  900e34:	663a6372 	undefined
  900e38:	312c3028 	teqcc	r12, r8, lsr #32
  900e3c:	72730029 	rsbvcs	r0, r3, #41	; 0x29
  900e40:	28703a63 	ldmcsda	r0!, {r0, r1, r5, r6, r9, r11, r12, sp}^
  900e44:	34322c30 	ldrcct	r2, [r2], -#3120
  900e48:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  900e4c:	29342c35 	ldmcsdb	r4!, {r0, r2, r4, r5, r10, r11, sp}
  900e50:	6e696600 	cdpvs	6, 6, cr6, cr9, cr0, {0}
  900e54:	65645f64 	strvsb	r5, [r4, -#3940]!
  900e58:	663a7473 	undefined
  900e5c:	312c3028 	teqcc	r12, r8, lsr #32
  900e60:	65640029 	strvsb	r0, [r4, -#41]!
  900e64:	703a7473 	eorvcs	r7, r10, r3, ror r4
  900e68:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900e6c:	66002934 	undefined
  900e70:	5f646e69 	swipl	0x00646e69
  900e74:	6d726f66 	ldcvsl	15, cr6, [r2, -#408]!
  900e78:	663a7461 	ldrvst	r7, [r10], -r1, ror #8
  900e7c:	312c3028 	teqcc	r12, r8, lsr #32
  900e80:	6f660029 	swivs	0x00660029
  900e84:	74616d72 	strvcbt	r6, [r1], -#3442
  900e88:	3028703a 	eorcc	r7, r8, r10, lsr r0
  900e8c:	2935322c 	ldmcsdb	r5!, {r2, r3, r5, r9, r12, sp}
  900e90:	35282a3d 	strcc	r2, [r8, -#2621]!
  900e94:	0029362c 	eoreq	r3, r9, r12, lsr #12
  900e98:	635f6f64 	cmpvs	pc, #400	; 0x190
  900e9c:	5f79706f 	swipl	0x0079706f
  900ea0:	6d6d6f63 	stcvsl	15, cr6, [sp, -#396]!
  900ea4:	3a646e61 	bcc	221c830 <__bss_end+0x1907584>
  900ea8:	2c302866 	ldccs	8, cr2, [r0], -#408
  900eac:	00293931 	eoreq	r3, r9, r1, lsr r9
  900eb0:	706d6f63 	rsbvc	r6, sp, r3, ror #30
  900eb4:	2c35283a 	ldccs	8, cr2, [r5], -#232
  900eb8:	73002932 	tstvc	r0, #819200	; 0xc8000
  900ebc:	283a6372 	ldmcsda	r10!, {r1, r4, r5, r6, r8, r9, sp, lr}
  900ec0:	29342c35 	ldmcsdb	r4!, {r0, r2, r4, r5, r10, r11, sp}
  900ec4:	73656400 	cmnvc	r5, #0	; 0x0
  900ec8:	35283a74 	strcc	r3, [r8, -#2676]!
  900ecc:	0029342c 	eoreq	r3, r9, r12, lsr #8
  900ed0:	6d726f66 	ldcvsl	15, cr6, [r2, -#408]!
  900ed4:	283a7461 	ldmcsda	r10!, {r0, r5, r6, r10, r12, sp, lr}
  900ed8:	29362c35 	ldmcsdb	r6!, {r0, r2, r4, r5, r10, r11, sp}
  900edc:	74657200 	strvcbt	r7, [r5], -#512
  900ee0:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900ee4:	64002931 	strvs	r2, [r0], -#2353
  900ee8:	65685f6f 	strvsb	r5, [r8, -#3951]!
  900eec:	635f706c 	cmpvs	pc, #108	; 0x6c
  900ef0:	616d6d6f 	cmnvs	sp, pc, ror #26
  900ef4:	663a646e 	ldrvst	r6, [r10], -lr, ror #8
  900ef8:	312c3028 	teqcc	r12, r8, lsr #32
  900efc:	64002939 	strvs	r2, [r0], -#2361
  900f00:	72655f6f 	rsbvc	r5, r5, #444	; 0x1bc
  900f04:	5f657361 	swipl	0x00657361
  900f08:	73616c66 	cmnvc	r1, #26112	; 0x6600
  900f0c:	28663a68 	stmcsda	r6!, {r3, r5, r6, r9, r11, r12, sp}^
  900f10:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900f14:	6f740029 	swivs	0x00740029
  900f18:	656c5f70 	strvsb	r5, [r12, -#3952]!
  900f1c:	5f6c6576 	swipl	0x006c6576
  900f20:	73726170 	cmnvc	r2, #28	; 0x1c
  900f24:	28663a65 	stmcsda	r6!, {r0, r2, r5, r6, r9, r11, r12, sp}^
  900f28:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900f2c:	6d630029 	stcvsl	0, cr0, [r3, -#164]!
  900f30:	28703a64 	ldmcsda	r0!, {r2, r5, r6, r9, r11, r12, sp}^
  900f34:	36322c30 	undefined
  900f38:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  900f3c:	31312c30 	teqcc	r1, r0, lsr r12
  900f40:	6d630029 	stcvsl	0, cr0, [r3, -#164]!
  900f44:	6f635f64 	swivs	0x00635f64
  900f48:	283a7970 	ldmcsda	r10!, {r4, r5, r6, r8, r11, r12, sp, lr}
  900f4c:	37322c30 	undefined
  900f50:	72613d29 	rsbvc	r3, r1, #2624	; 0xa40
  900f54:	312c3028 	teqcc	r12, r8, lsr #32
  900f58:	3b303b29 	blcc	150fc04 <__bss_end+0xbfa958>
  900f5c:	283b3939 	ldmcsda	r11!, {r0, r3, r4, r5, r8, r11, r12, sp}
  900f60:	31312c30 	teqcc	r1, r0, lsr r12
  900f64:	6d630029 	stcvsl	0, cr0, [r3, -#164]!
  900f68:	6c5f7364 	ldcvsl	3, cr7, [pc], -#400
  900f6c:	3a747369 	bcc	261dd18 <__bss_end+0x1d08a6c>
  900f70:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900f74:	613d2938 	teqvs	sp, r8, lsr r9
  900f78:	2c302872 	ldccs	8, cr2, [r0], -#456
  900f7c:	303b2931 	eorccs	r2, r11, r1, lsr r9
  900f80:	283b393b 	ldmcsda	r11!, {r0, r1, r3, r4, r5, r8, r11, r12, sp}
  900f84:	36322c30 	undefined
  900f88:	5f610029 	swipl	0x00610029
  900f8c:	3a646d63 	bcc	221c520 <__bss_end+0x1907274>
  900f90:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900f94:	63002936 	tstvs	r0, #884736	; 0xd8000
  900f98:	695f646d 	ldmvsdb	pc, {r0, r2, r3, r5, r6, r10, sp, lr}^
  900f9c:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900fa0:	63002931 	tstvs	r0, #802816	; 0xc4000
  900fa4:	6c5f646d 	ldcvsl	4, cr6, [pc], -#436
  900fa8:	5f656e69 	swipl	0x00656e69
  900fac:	65646f6d 	strvsb	r6, [r4, -#3949]!
  900fb0:	3028663a 	eorcc	r6, r8, r10, lsr r6
  900fb4:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900fb8:	646d6300 	strvsbt	r6, [sp], -#768
  900fbc:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900fc0:	00293732 	eoreq	r3, r9, r2, lsr r7
  900fc4:	61726170 	cmnvs	r2, r0, ror r1
  900fc8:	655f736d 	ldrvsb	r7, [pc, #fffffc93]	; 900c63 <L_STACK_UNTOUCHED_MAGIC+0xb77>
  900fcc:	5f746964 	swipl	0x00746964
  900fd0:	756e656d 	strvcb	r6, [lr, -#1389]!
  900fd4:	3028663a 	eorcc	r6, r8, r10, lsr r6
  900fd8:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900fdc:	706f6300 	rsbvc	r6, pc, r0, lsl #6
  900fe0:	6f745f79 	swivs	0x00745f79
  900fe4:	616c665f 	cmnvs	r12, pc, asr r6
  900fe8:	6d5f6873 	ldcvsl	8, cr6, [pc, -#460]
  900fec:	3a756e65 	bcc	265c988 <__bss_end+0x1d476dc>
  900ff0:	2c302866 	ldccs	8, cr2, [r0], -#408
  900ff4:	00293931 	eoreq	r3, r9, r1, lsr r9
  900ff8:	79706f63 	ldmvcdb	r0!, {r0, r1, r5, r6, r8, r9, r10, r11, sp, lr}^
  900ffc:	5f6f745f 	swipl	0x006f745f
  901000:	41524453 	cmpmi	r2, r3, asr r4
  901004:	656d5f4d 	strvsb	r5, [sp, -#3917]!
  901008:	3a31756e 	bcc	155e5c8 <__bss_end+0xc4931c>
  90100c:	2c302866 	ldccs	8, cr2, [r0], -#408
  901010:	00293931 	eoreq	r3, r9, r1, lsr r9
  901014:	5f637273 	swipl	0x00637273
  901018:	74726f70 	ldrvcbt	r6, [r2], -#3952
  90101c:	2c35283a 	ldccs	8, cr2, [r5], -#232
  901020:	63002934 	tstvs	r0, #851968	; 0xd0000
  901024:	765f646d 	ldrvcb	r6, [pc], -sp, ror #8
  901028:	66697265 	strvsbt	r7, [r9], -r5, ror #4
  90102c:	6f635f79 	swivs	0x00635f79
  901030:	463a706d 	ldrmit	r7, [r10], -sp, rrx
  901034:	312c3028 	teqcc	r12, r8, lsr #32
  901038:	63002939 	tstvs	r0, #933888	; 0xe4000
  90103c:	3528703a 	strcc	r7, [r8, -#58]!
  901040:	0029322c 	eoreq	r3, r9, r12, lsr #4
  901044:	73616c66 	cmnvc	r1, #26112	; 0x6600
  901048:	64615f68 	strvsbt	r5, [r1], -#3944
  90104c:	283a7264 	ldmcsda	r10!, {r2, r5, r6, r9, r12, sp, lr}
  901050:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  901054:	72647300 	rsbvc	r7, r4, #0	; 0x0
  901058:	615f6d61 	cmpvs	pc, r1, ror #26
  90105c:	3a726464 	bcc	259a1f4 <__bss_end+0x1c84f48>
  901060:	312c3028 	teqcc	r12, r8, lsr #32
  901064:	656c0029 	strvsb	r0, [r12, -#41]!
  901068:	30283a6e 	eorcc	r3, r8, lr, ror #20
  90106c:	0029312c 	eoreq	r3, r9, r12, lsr #2
  901070:	6d6d7564 	stcvsl	5, cr7, [sp, -#400]!
  901074:	30283a79 	eorcc	r3, r8, r9, ror r10
  901078:	0029312c 	eoreq	r3, r9, r12, lsr #2
  90107c:	3a727265 	bcc	259da18 <__bss_end+0x1c8876c>
  901080:	312c3028 	teqcc	r12, r8, lsr #32
  901084:	64610029 	strvsbt	r0, [r1], -#41
  901088:	74737264 	ldrvcbt	r7, [r3], -#612
  90108c:	30283a72 	eorcc	r3, r8, r2, ror r10
  901090:	2939322c 	ldmcsdb	r9!, {r2, r3, r5, r9, r12, sp}
  901094:	2872613d 	ldmcsda	r2!, {r0, r2, r3, r4, r5, r8, sp, lr}^
  901098:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  90109c:	313b303b 	teqcc	r11, r11, lsr r0
  9010a0:	30283b30 	eorcc	r3, r8, r0, lsr r11
  9010a4:	0029322c 	eoreq	r3, r9, r12, lsr #4