2

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:	312c3028 	teqcc	r12, r8, lsr #32
  900c4c:	39312c29 	ldmccdb	r1!, {r0, r3, r5, r10, r11, sp}
  900c50:	2c303032 	ldccs	0, cr3, [r0], -#200
  900c54:	3b3b3233 	blcc	17cd528 <__bss_end+0xeb8ccc>
  900c58:	616c6600 	cmnvs	r12, r0, lsl #12
  900c5c:	682e6873 	stmvsda	lr!, {r0, r1, r4, r5, r6, r11, sp, lr}
  900c60:	74654700 	strvcbt	r4, [r5], -#1792
  900c64:	65747942 	ldrvsb	r7, [r4, -#2370]!
  900c68:	6c6c6143 	stfvse	f6, [r12], -#268
  900c6c:	6b636142 	blvs	21d917c <__bss_end+0x18c4920>
  900c70:	743a745f 	ldrvct	r7, [r10], -#1119
  900c74:	312c3628 	teqcc	r12, r8, lsr #12
  900c78:	36283d29 	strcct	r3, [r8], -r9, lsr #26
  900c7c:	3d29322c 	sfmcc	f3, 4, [r9, -#176]!
  900c80:	2c36282a 	ldccs	8, cr2, [r6], -#168
  900c84:	663d2933 	undefined
  900c88:	312c3028 	teqcc	r12, r8, lsr #32
  900c8c:	47002931 	undefined
  900c90:	61567465 	cmpvs	r6, r5, ror #8
  900c94:	4174416c 	cmnmi	r4, r12, ror #2
  900c98:	43726464 	cmnmi	r2, #1677721600	; 0x64000000
  900c9c:	426c6c61 	rsbmi	r6, r12, #24832	; 0x6100
  900ca0:	5f6b6361 	swipl	0x006b6361
  900ca4:	28743a74 	ldmcsda	r4!, {r2, r4, r5, r6, r9, r11, r12, sp}^
  900ca8:	29342c36 	ldmcsdb	r4!, {r1, r2, r4, r5, r10, r11, sp}
  900cac:	2c36283d 	ldccs	8, cr2, [r6], -#244
  900cb0:	2a3d2935 	bcs	184b18c <__bss_end+0xf36930>
  900cb4:	362c3628 	strcct	r3, [r12], -r8, lsr #12
  900cb8:	28663d29 	stmcsda	r6!, {r0, r3, r5, r8, r10, r11, r12, sp}^
  900cbc:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900cc0:	75500029 	ldrvcb	r0, [r0, -#41]
  900cc4:	6c615674 	stcvsl	6, cr5, [r1], -#464
  900cc8:	64417441 	strvsb	r7, [r1], -#1089
  900ccc:	61437264 	cmpvs	r3, r4, ror #4
  900cd0:	61426c6c 	cmpvs	r2, r12, ror #24
  900cd4:	745f6b63 	ldrvcb	r6, [pc], #b63	; 900cdc <L_STACK_UNTOUCHED_MAGIC+0xbe8>
  900cd8:	3628743a 	undefined
  900cdc:	3d29372c 	stccc	7, cr3, [r9, -#176]!
  900ce0:	382c3628 	stmccda	r12!, {r3, r5, r9, r10, r12, sp}
  900ce4:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  900ce8:	29392c36 	ldmcsdb	r9!, {r1, r2, r4, r5, r10, r11, sp}
  900cec:	3028663d 	eorcc	r6, r8, sp, lsr r6
  900cf0:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900cf4:	72657600 	rsbvc	r7, r5, #0	; 0x0
  900cf8:	6e6f6973 	mcrvs	9, 3, r6, cr15, cr3, {3}
  900cfc:	7000682e 	andvc	r6, r0, lr, lsr #16
  900d00:	6f43706d 	swivs	0x0043706d
  900d04:	6769666e 	strvsb	r6, [r9, -lr, ror #12]!
  900d08:	6900682e 	stmvsdb	r0, {r1, r2, r3, r5, r11, sp, lr}
  900d0c:	6c61766e 	stcvsl	6, cr7, [r1], -#440
  900d10:	635f6469 	cmpvs	pc, #1761607680	; 0x69000000
  900d14:	616d6d6f 	cmnvs	sp, pc, ror #26
  900d18:	663a646e 	ldrvst	r6, [r10], -lr, ror #8
  900d1c:	312c3028 	teqcc	r12, r8, lsr #32
  900d20:	70002939 	andvc	r2, r0, r9, lsr r9
  900d24:	72676f72 	rsbvc	r6, r7, #456	; 0x1c8
  900d28:	5f737365 	swipl	0x00737365
  900d2c:	6574656d 	ldrvsb	r6, [r4, -#1389]!
  900d30:	28663a72 	stmcsda	r6!, {r1, r4, r5, r6, r9, r11, r12, sp}^
  900d34:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900d38:	6c630029 	stcvsl	0, cr0, [r3], -#164
  900d3c:	3a726165 	bcc	25992d8 <__bss_end+0x1c84a7c>
  900d40:	2c302866 	ldccs	8, cr2, [r0], -#408
  900d44:	00293931 	eoreq	r3, r9, r1, lsr r9
  900d48:	705f6f64 	subvcs	r6, pc, r4, ror #30
  900d4c:	6d617261 	sfmvs	f7, 2, [r1, -#388]!
  900d50:	73696c5f 	cmnvc	r9, #24320	; 0x5f00
  900d54:	676e6974 	undefined
  900d58:	3028463a 	eorcc	r4, r8, r10, lsr r6
  900d5c:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900d60:	6e696600 	cdpvs	6, 6, cr6, cr9, cr0, {0}
  900d64:	61705f64 	cmnvs	r0, r4, ror #30
  900d68:	3a6d6172 	bcc	2459338 <__bss_end+0x1b44adc>
  900d6c:	2c302866 	ldccs	8, cr2, [r0], -#408
  900d70:	70002931 	andvc	r2, r0, r1, lsr r9
  900d74:	6d617261 	sfmvs	f7, 2, [r1, -#388]!
  900d78:	3028703a 	eorcc	r7, r8, r10, lsr r0
  900d7c:	2931322c 	ldmcsdb	r1!, {r2, r3, r5, r9, r12, sp}
  900d80:	30282a3d 	eorcc	r2, r8, sp, lsr r10
  900d84:	0029322c 	eoreq	r3, r9, r12, lsr #4
  900d88:	656e696c 	strvsb	r6, [lr, -#2412]!
  900d8c:	3028703a 	eorcc	r7, r8, r10, lsr r0
  900d90:	2931322c 	ldmcsdb	r1!, {r2, r3, r5, r9, r12, sp}
  900d94:	756f6600 	strvcb	r6, [pc, #fffffa00]!	; 90079c <L_STACK_UNTOUCHED_MAGIC+0x6a8>
  900d98:	283a646e 	ldmcsda	r10!, {r1, r2, r3, r5, r6, r10, sp, lr}
  900d9c:	29312c30 	ldmcsdb	r1!, {r4, r5, r10, r11, sp}
  900da0:	695f6c00 	ldmvsdb	pc, {r10, r11, sp, lr}^
  900da4:	7865646e 	stmvcda	r5!, {r1, r2, r3, r5, r6, r10, sp, lr}^
  900da8:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900dac:	6a002931 	bvs	90b278 <util_fill_MAC+0x114>
  900db0:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900db4:	6b002931 	blvs	90b280 <util_fill_MAC+0x11c>
  900db8:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900dbc:	64002931 	strvs	r2, [r0], -#2353
  900dc0:	65735f6f 	ldrvsb	r5, [r3, -#3951]!
  900dc4:	6f635f74 	swivs	0x00635f74
  900dc8:	6e616d6d 	cdpvs	13, 6, cr6, cr1, cr13, {3}
  900dcc:	28663a64 	stmcsda	r6!, {r2, r5, r6, r9, r11, r12, sp}^
  900dd0:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900dd4:	61700029 	cmnvs	r0, r9, lsr #32
  900dd8:	3a6d6172 	bcc	24593a8 <__bss_end+0x1b44b4c>
  900ddc:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900de0:	613d2932 	teqvs	sp, r2, lsr r9
  900de4:	2c302872 	ldccs	8, cr2, [r0], -#456
  900de8:	303b2931 	eorccs	r2, r11, r1, lsr r9
  900dec:	3b39393b 	blcc	174f2e0 <__bss_end+0xe3aa84>
  900df0:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900df4:	61760029 	cmnvs	r6, r9, lsr #32
  900df8:	30283a6c 	eorcc	r3, r8, r12, ror #20
  900dfc:	2931322c 	ldmcsdb	r1!, {r2, r3, r5, r9, r12, sp}
  900e00:	5f6f6400 	swipl	0x006f6400
  900e04:	73617265 	cmnvc	r1, #1342177286	; 0x50000006
  900e08:	6c665f65 	stcvsl	15, cr5, [r6], -#404
  900e0c:	5f687361 	swipl	0x00687361
  900e10:	3a646d63 	bcc	221c3a4 <__bss_end+0x1907b48>
  900e14:	2c302866 	ldccs	8, cr2, [r0], -#408
  900e18:	00293931 	eoreq	r3, r9, r1, lsr r9
  900e1c:	61726170 	cmnvs	r2, r0, ror r1
  900e20:	30283a6d 	eorcc	r3, r8, sp, ror #20
  900e24:	2932322c 	ldmcsdb	r2!, {r2, r3, r5, r9, r12, sp}
  900e28:	6e696600 	cdpvs	6, 6, cr6, cr9, cr0, {0}
  900e2c:	6f635f64 	swivs	0x00635f64
  900e30:	663a706d 	ldrvst	r7, [r10], -sp, rrx
  900e34:	312c3028 	teqcc	r12, r8, lsr #32
  900e38:	6f630029 	swivs	0x00630029
  900e3c:	703a706d 	eorvcs	r7, r10, sp, rrx
  900e40:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900e44:	2a3d2933 	bcs	184b318 <__bss_end+0xf36abc>
  900e48:	322c3528 	eorcc	r3, r12, #167772160	; 0xa000000
  900e4c:	69660029 	stmvsdb	r6!, {r0, r3, r5}^
  900e50:	735f646e 	cmpvc	pc, #1845493760	; 0x6e000000
  900e54:	663a6372 	undefined
  900e58:	312c3028 	teqcc	r12, r8, lsr #32
  900e5c:	72730029 	rsbvcs	r0, r3, #41	; 0x29
  900e60:	28703a63 	ldmcsda	r0!, {r0, r1, r5, r6, r9, r11, r12, sp}^
  900e64:	34322c30 	ldrcct	r2, [r2], -#3120
  900e68:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  900e6c:	29342c35 	ldmcsdb	r4!, {r0, r2, r4, r5, r10, r11, sp}
  900e70:	6e696600 	cdpvs	6, 6, cr6, cr9, cr0, {0}
  900e74:	65645f64 	strvsb	r5, [r4, -#3940]!
  900e78:	663a7473 	undefined
  900e7c:	312c3028 	teqcc	r12, r8, lsr #32
  900e80:	65640029 	strvsb	r0, [r4, -#41]!
  900e84:	703a7473 	eorvcs	r7, r10, r3, ror r4
  900e88:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900e8c:	66002934 	undefined
  900e90:	5f646e69 	swipl	0x00646e69
  900e94:	6d726f66 	ldcvsl	15, cr6, [r2, -#408]!
  900e98:	663a7461 	ldrvst	r7, [r10], -r1, ror #8
  900e9c:	312c3028 	teqcc	r12, r8, lsr #32
  900ea0:	6f660029 	swivs	0x00660029
  900ea4:	74616d72 	strvcbt	r6, [r1], -#3442
  900ea8:	3028703a 	eorcc	r7, r8, r10, lsr r0
  900eac:	2935322c 	ldmcsdb	r5!, {r2, r3, r5, r9, r12, sp}
  900eb0:	35282a3d 	strcc	r2, [r8, -#2621]!
  900eb4:	0029362c 	eoreq	r3, r9, r12, lsr #12
  900eb8:	635f6f64 	cmpvs	pc, #400	; 0x190
  900ebc:	5f79706f 	swipl	0x0079706f
  900ec0:	6d6d6f63 	stcvsl	15, cr6, [sp, -#396]!
  900ec4:	3a646e61 	bcc	221c850 <__bss_end+0x1907ff4>
  900ec8:	2c302866 	ldccs	8, cr2, [r0], -#408
  900ecc:	00293931 	eoreq	r3, r9, r1, lsr r9
  900ed0:	706d6f63 	rsbvc	r6, sp, r3, ror #30
  900ed4:	2c35283a 	ldccs	8, cr2, [r5], -#232
  900ed8:	73002932 	tstvc	r0, #819200	; 0xc8000
  900edc:	283a6372 	ldmcsda	r10!, {r1, r4, r5, r6, r8, r9, sp, lr}
  900ee0:	29342c35 	ldmcsdb	r4!, {r0, r2, r4, r5, r10, r11, sp}
  900ee4:	73656400 	cmnvc	r5, #0	; 0x0
  900ee8:	35283a74 	strcc	r3, [r8, -#2676]!
  900eec:	0029342c 	eoreq	r3, r9, r12, lsr #8
  900ef0:	6d726f66 	ldcvsl	15, cr6, [r2, -#408]!
  900ef4:	283a7461 	ldmcsda	r10!, {r0, r5, r6, r10, r12, sp, lr}
  900ef8:	29362c35 	ldmcsdb	r6!, {r0, r2, r4, r5, r10, r11, sp}
  900efc:	74657200 	strvcbt	r7, [r5], -#512
  900f00:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900f04:	64002931 	strvs	r2, [r0], -#2353
  900f08:	65685f6f 	strvsb	r5, [r8, -#3951]!
  900f0c:	635f706c 	cmpvs	pc, #108	; 0x6c
  900f10:	616d6d6f 	cmnvs	sp, pc, ror #26
  900f14:	663a646e 	ldrvst	r6, [r10], -lr, ror #8
  900f18:	312c3028 	teqcc	r12, r8, lsr #32
  900f1c:	64002939 	strvs	r2, [r0], -#2361
  900f20:	72655f6f 	rsbvc	r5, r5, #444	; 0x1bc
  900f24:	5f657361 	swipl	0x00657361
  900f28:	73616c66 	cmnvc	r1, #26112	; 0x6600
  900f2c:	28663a68 	stmcsda	r6!, {r3, r5, r6, r9, r11, r12, sp}^
  900f30:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900f34:	6f740029 	swivs	0x00740029
  900f38:	656c5f70 	strvsb	r5, [r12, -#3952]!
  900f3c:	5f6c6576 	swipl	0x006c6576
  900f40:	73726170 	cmnvc	r2, #28	; 0x1c
  900f44:	28663a65 	stmcsda	r6!, {r0, r2, r5, r6, r9, r11, r12, sp}^
  900f48:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  900f4c:	6d630029 	stcvsl	0, cr0, [r3, -#164]!
  900f50:	28703a64 	ldmcsda	r0!, {r2, r5, r6, r9, r11, r12, sp}^
  900f54:	36322c30 	undefined
  900f58:	282a3d29 	stmcsda	r10!, {r0, r3, r5, r8, r10, r11, r12, sp}
  900f5c:	31312c30 	teqcc	r1, r0, lsr r12
  900f60:	6d630029 	stcvsl	0, cr0, [r3, -#164]!
  900f64:	6f635f64 	swivs	0x00635f64
  900f68:	283a7970 	ldmcsda	r10!, {r4, r5, r6, r8, r11, r12, sp, lr}
  900f6c:	37322c30 	undefined
  900f70:	72613d29 	rsbvc	r3, r1, #2624	; 0xa40
  900f74:	312c3028 	teqcc	r12, r8, lsr #32
  900f78:	3b303b29 	blcc	150fc24 <__bss_end+0xbfb3c8>
  900f7c:	283b3939 	ldmcsda	r11!, {r0, r3, r4, r5, r8, r11, r12, sp}
  900f80:	31312c30 	teqcc	r1, r0, lsr r12
  900f84:	6d630029 	stcvsl	0, cr0, [r3, -#164]!
  900f88:	6c5f7364 	ldcvsl	3, cr7, [pc], -#400
  900f8c:	3a747369 	bcc	261dd38 <__bss_end+0x1d094dc>
  900f90:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900f94:	613d2938 	teqvs	sp, r8, lsr r9
  900f98:	2c302872 	ldccs	8, cr2, [r0], -#456
  900f9c:	303b2931 	eorccs	r2, r11, r1, lsr r9
  900fa0:	283b393b 	ldmcsda	r11!, {r0, r1, r3, r4, r5, r8, r11, r12, sp}
  900fa4:	36322c30 	undefined
  900fa8:	5f610029 	swipl	0x00610029
  900fac:	3a646d63 	bcc	221c540 <__bss_end+0x1907ce4>
  900fb0:	322c3028 	eorcc	r3, r12, #40	; 0x28
  900fb4:	63002936 	tstvs	r0, #884736	; 0xd8000
  900fb8:	695f646d 	ldmvsdb	pc, {r0, r2, r3, r5, r6, r10, sp, lr}^
  900fbc:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900fc0:	63002931 	tstvs	r0, #802816	; 0xc4000
  900fc4:	6c5f646d 	ldcvsl	4, cr6, [pc], -#436
  900fc8:	5f656e69 	swipl	0x00656e69
  900fcc:	65646f6d 	strvsb	r6, [r4, -#3949]!
  900fd0:	3028663a 	eorcc	r6, r8, r10, lsr r6
  900fd4:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900fd8:	646d6300 	strvsbt	r6, [sp], -#768
  900fdc:	2c30283a 	ldccs	8, cr2, [r0], -#232
  900fe0:	00293732 	eoreq	r3, r9, r2, lsr r7
  900fe4:	61726170 	cmnvs	r2, r0, ror r1
  900fe8:	655f736d 	ldrvsb	r7, [pc, #fffffc93]	; 900c83 <L_STACK_UNTOUCHED_MAGIC+0xb8f>
  900fec:	5f746964 	swipl	0x00746964
  900ff0:	756e656d 	strvcb	r6, [lr, -#1389]!
  900ff4:	3028663a 	eorcc	r6, r8, r10, lsr r6
  900ff8:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  900ffc:	706f6300 	rsbvc	r6, pc, r0, lsl #6
  901000:	6f745f79 	swivs	0x00745f79
  901004:	616c665f 	cmnvs	r12, pc, asr r6
  901008:	6d5f6873 	ldcvsl	8, cr6, [pc, -#460]
  90100c:	3a756e65 	bcc	265c9a8 <__bss_end+0x1d4814c>
  901010:	2c302866 	ldccs	8, cr2, [r0], -#408
  901014:	00293931 	eoreq	r3, r9, r1, lsr r9
  901018:	79706f63 	ldmvcdb	r0!, {r0, r1, r5, r6, r8, r9, r10, r11, sp, lr}^
  90101c:	5f6f745f 	swipl	0x006f745f
  901020:	41524453 	cmpmi	r2, r3, asr r4
  901024:	656d5f4d 	strvsb	r5, [sp, -#3917]!
  901028:	3a31756e 	bcc	155e5e8 <__bss_end+0xc49d8c>
  90102c:	2c302866 	ldccs	8, cr2, [r0], -#408
  901030:	00293931 	eoreq	r3, r9, r1, lsr r9
  901034:	5f637273 	swipl	0x00637273
  901038:	74726f70 	ldrvcbt	r6, [r2], -#3952
  90103c:	2c35283a 	ldccs	8, cr2, [r5], -#232
  901040:	6d002934 	stcvs	9, cr2, [r0, -#208]
  901044:	5f756e65 	swipl	0x00756e65
  901048:	65646f6d 	strvsb	r6, [r4, -#3949]!
  90104c:	3028663a 	eorcc	r6, r8, r10, lsr r6
  901050:	2939312c 	ldmcsdb	r9!, {r2, r3, r5, r8, r12, sp}
  901054:	6f727000 	swivs	0x00727000
  901058:	73736563 	cmnvc	r3, #415236096	; 0x18c00000
  90105c:	6665645f 	undefined
  901060:	746c7561 	strvcbt	r7, [r12], -#1377
  901064:	6f6f625f 	swivs	0x006f625f
  901068:	6d635f74 	stcvsl	15, cr5, [r3, -#464]!
  90106c:	28663a64 	stmcsda	r6!, {r2, r5, r6, r9, r11, r12, sp}^
  901070:	39312c30 	ldmccdb	r1!, {r4, r5, r10, r11, sp}
  901074:	6f630029 	swivs	0x00630029
  901078:	6e616d6d 	cdpvs	13, 6, cr6, cr1, cr13, {3}
  90107c:	28703a64 	ldmcsda	r0!, {r2, r5, r6, r9, r11, r12, sp}^
  901080:	36322c30 	undefined
  901084:	68630029 	stmvsda	r3!, {r0, r3, r5}^
  901088:	2c30283a 	ldccs	8, cr2, [r0], -#232
  90108c:	00293131 	eoreq	r3, r9, r1, lsr r1
  901090:	6e69616d 	powvsez	f6, f1, #5.0
  901094:	3028463a 	eorcc	r4, r8, r10, lsr r6
  901098:	0029312c 	eoreq	r3, r9, r12, lsr #2
  90109c:	63677261 	cmnvs	r7, #268435462	; 0x10000006
  9010a0:	3028703a 	eorcc	r7, r8, r10, lsr r0
  9010a4:	0029312c 	eoreq	r3, r9, r12, lsr #2