view dsample-fw-disasm @ 228:fec90990f613

pirchgdbg started
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 19 Dec 2017 02:58:38 +0000
parents d12a3207b1aa
children 7b679943b57d
line wrap: on
line source

; The present work is a disassembly analysis of the 20020917 firmware image
; read out of our vintage D-Sample C05 board.

       0:	ea0004e7	b	0x13a4
       4:	ea003ffd	b	0x10000
       8:	ea003ffd	b	0x10004
       c:	ea003ffd	b	0x10008
      10:	ea003ffd	b	0x1000c
      14:	ea003ffd	b	0x10010
      18:	ea003ffd	b	0x10014
      1c:	ea003ffd	b	0x10018

; constant pool before _INT_Bootloader_Start matches TCS211
    1378:	fffffb00
    137c:	02a102a1
    1380:	028302a1
    1384:	00c00281
    1388:	002a0040
    138c:	fffffd00
    1390:	ffff9800
    1394:	fffffb10
    1398:	ffffff08
    139c:	20061081
    13a0:	00000800

_INT_Bootloader_Start:	; code fully matches TCS211
    13a4:	e51f101c	ldr	r1, =0xffff9800	; via 0x1390
    13a8:	e15f21b2	ldrh	r2, =0x2006	; via 0x139e
    13ac:	e1c120b0	strh	r2, [r1]
    13b0:	e5912000	ldr	r2, [r1]
    13b4:	e2022001	and	r2, r2, #1
    13b8:	e3520001	cmp	r2, #1
    13bc:	0afffffb	beq	0x13b0
    13c0:	e51f103c	ldr	r1, =0xfffffd00	; via 0x138c
    13c4:	e15f23b0	ldrh	r2, =0x1081	; via 0x139c
    13c8:	e1c120b0	strh	r2, [r1]
    13cc:	e51f1040	ldr	r1, =0xfffffb10	; via 0x1394
    13d0:	e15f23b8	ldrh	r2, =0x800	; via 0x13a0
    13d4:	e1d100b0	ldrh	r0, [r1]
    13d8:	e1800002	orr	r0, r0, r2
    13dc:	e1c100b0	strh	r0, [r1]
    13e0:	e51f1050	ldr	r1, =0xffffff08	; via 0x1398
    13e4:	e15f24ba	ldrh	r2, =0x0	; via 0x13a2
    13e8:	e1c120b0	strh	r2, [r1]
    13ec:	e51f107c	ldr	r1, =0xfffffb00	; via 0x1378
    13f0:	e15f27bc	ldrh	r2, =0x2a1	; via 0x137c
    13f4:	e1c120b0	strh	r2, [r1]
    13f8:	e15f28b2	ldrh	r2, =0x2a1	; via 0x137e
    13fc:	e1c120b2	strh	r2, [r1, #2]
    1400:	e15f28b8	ldrh	r2, =0x2a1	; via 0x1380
    1404:	e1c120b4	strh	r2, [r1, #4]
    1408:	e15f28be	ldrh	r2, =0x283	; via 0x1382
    140c:	e1c120b6	strh	r2, [r1, #6]
    1410:	e15f29b4	ldrh	r2, =0x281	; via 0x1384
    1414:	e1c120ba	strh	r2, [r1, #10]	; 0xa
    1418:	e15f29ba	ldrh	r2, =0xc0	; via 0x1386
    141c:	e1c120bc	strh	r2, [r1, #12]	; 0xc
    1420:	e15f2ab0	ldrh	r2, =0x40	; via 0x1388
    1424:	e1c120b8	strh	r2, [r1, #8]
    1428:	e15f2ab6	ldrh	r2, =0x2a	; via 0x138a
    142c:	e1c120be	strh	r2, [r1, #14]	; 0xe
    1430:	e59f0020	ldr	r0, =0x107921c	; via 0x1458
    1434:	e3a01b01	mov	r1, #1024	; 0x400
    1438:	e2411004	sub	r1, r1, #4
    143c:	e0802001	add	r2, r0, r1
    1440:	e3c22003	bic	r2, r2, #3
    1444:	e1a0d002	mov	sp, r2
    1448:	e92d100f	stmdb	sp!, {r0, r1, r2, r3, r12}
    144c:	eb000046	bl	0x156c
    1450:	e8bd100f	ldmia	sp!, {r0, r1, r2, r3, r12}
    1454:	ea003afd	b	0x10050
    1458:	0107921c

_sta_select_application:	(ARM->Thumb veneer)
    156c:	e92d4000	stmdb	sp!, {lr}
    1570:	e28fe001	add	lr, pc, #1
    1574:	e12fff1e	bx	lr
    1578:	f7ff fd63	bl	0x1042
    157c:	4778		bx	pc
    157e:	46c0		nop			(mov r8, r8)
    1580:	e8bd8000	ldmia	sp!, {pc}

; branch target addresses differ from TCS211
   10000:	ea0000bf	b	0x10304
   10004:	ea0000c4	b	0x1031c
   10008:	ea0000c9	b	0x10334
   1000c:	ea0000ce	b	0x1034c
   10010:	ea0000d3	b	0x10364
   10014:	ea0000b0	b	0x102dc
   10018:	ea0000b4	b	0x102f0

; Constant pool
; Difference between this version and TCS211: the newer TCS211 version
; includes constants 0xFFFEF006 and 0x00000008 for the 8 MiB
; memory bank setup.  This difference must be responsible for the
; 0x10050 vs. 0x10058 discrepancy.

   1001c:	02a102a1
   10020:	028302a1
   10024:	02c00e85
   10028:	002a0040
   1002c:	fffffb00
   10030:	fffffd00
   10034:	ffff9800
   10038:	fffffb10
   1003c:	ffffff08
   10040:	20021081
   10044:	f7ff0800
   10048:	00000000
   1004c:	0001047c	; .cinit base

_INT_Initialize:
; beginning matches TCS211
   10050:	e51f1024	ldr	r1, =0xffff9800	; via 0x10034
   10054:	e15f21ba	ldrh	r2, =0x2002	; via 0x10042
   10058:	e1c120b0	strh	r2, [r1]
   1005c:	e5912000	ldr	r2, [r1]
   10060:	e2022001	and	r2, r2, #1
   10064:	e3520001	cmp	r2, #1
   10068:	0afffffb	beq	0x1005c
   1006c:	e51f1044	ldr	r1, =0xfffffd00	; via 0x10030
   10070:	e15f23b8	ldrh	r2, =0x1081	; via 0x10040
   10074:	e1c120b0	strh	r2, [r1]
   10078:	e51f1048	ldr	r1, =0xfffffb10	; via 0x10038
   1007c:	e15f23be	ldrh	r2, =0xf7ff	; via 0x10046
   10080:	e1d100b0	ldrh	r0, [r1]
   10084:	e0000002	and	r0, r0, r2
   10088:	e1c100b0	strh	r0, [r1]
   1008c:	e51f1058	ldr	r1, =0xffffff08	; via 0x1003c
   10090:	e15f25b0	ldrh	r2, =0x0	; via 0x10048
   10094:	e1c120b0	strh	r2, [r1]
   10098:	e51f1074	ldr	r1, =0xfffffb00	; via 0x1002c
   1009c:	e15f28b8	ldrh	r2, =0x2a1	; via 0x1001c
   100a0:	e1c120b0	strh	r2, [r1]
   100a4:	e15f28be	ldrh	r2, =0x2a1	; via 0x1001e
   100a8:	e1c120b2	strh	r2, [r1, #2]
   100ac:	e15f29b4	ldrh	r2, =0x2a1	; via 0x10020
   100b0:	e1c120b4	strh	r2, [r1, #4]
   100b4:	e15f29ba	ldrh	r2, =0x283	; via 0x10022
   100b8:	e1c120b6	strh	r2, [r1, #6]
   100bc:	e15f2ab0	ldrh	r2, =0xe85	; via 0x10024
   100c0:	e1c120ba	strh	r2, [r1, #10]	; 0xa
   100c4:	e15f2ab6	ldrh	r2, =0x2c0	; via 0x10026
   100c8:	e1c120bc	strh	r2, [r1, #12]	; 0xc
   100cc:	e15f2abc	ldrh	r2, =0x40	; via 0x10028
   100d0:	e1c120b8	strh	r2, [r1, #8]
   100d4:	e15f2bb2	ldrh	r2, =0x2a	; via 0x1002a
   100d8:	e1c120be	strh	r2, [r1, #14]	; 0xe
; TCS211 version does the 8 MiB memory bank setup at this point
   100dc:	e10f0000	mrs	r0, CPSR
   100e0:	e3c0001f	bic	r0, r0, #31	; 0x1f
   100e4:	e3800013	orr	r0, r0, #19	; 0x13
   100e8:	e38000c0	orr	r0, r0, #192	; 0xc0
   100ec:	e129f000	msr	CPSR_fc, r0
; bss clearing is done inline here, whereas TCS211 version calls _INT_memset
   100f0:	e59f0304	ldr	r0, =0x1000cf4	; via 0x103fc
   100f4:	e3a02000	mov	r2, #0
   100f8:	e59f1300	ldr	r1, =0x107921c	; via 0x10400
   100fc:	e4802004	str	r2, [r0], #4
   10100:	e1500001	cmp	r0, r1
   10104:	1afffffc	bne	0x100fc
   10108:	e59f02f4	ldr	r0, =0x819450	; via 0x10404
   1010c:	e3a02000	mov	r2, #0
   10110:	e59f12f0	ldr	r1, =0x83eda0	; via 0x10408
   10114:	e4802004	str	r2, [r0], #4
   10118:	e1500001	cmp	r0, r1
   1011c:	1afffffc	bne	0x10114
; setting _INT_Loaded_Flag?
; code matches TCS211 0x10150 from this point onward
   10120:	e3a00001	mov	r0, #1
   10124:	e59f12e4	ldr	r1, =0x107916c	; via 0x10410
   10128:	e5810000	str	r0, [r1]
; stack setup matching 0x1015c in TCS211
   1012c:	e59f02d8	ldr	r0, =0x1079308	; via 0x1040c
   10130:	e3a01b01	mov	r1, #1024	; 0x400
   10134:	e2411004	sub	r1, r1, #4
   10138:	e0802001	add	r2, r0, r1
   1013c:	e1a0a000	mov	r10, r0
   10140:	e59f32cc	ldr	r3, =0x83c148	; via 0x10414
   10144:	e583a000	str	r10, [r3]
   10148:	e1a0d002	mov	sp, r2
   1014c:	e59f32c4	ldr	r3, =0x83c26c	; via 0x10418
   10150:	e583d000	str	sp, [r3]
   10154:	e3a01080	mov	r1, #128	; 0x80
   10158:	e0822001	add	r2, r2, r1
   1015c:	e10f0000	mrs	r0, CPSR
   10160:	e3c0001f	bic	r0, r0, #31	; 0x1f
   10164:	e3800012	orr	r0, r0, #18	; 0x12
   10168:	e129f000	msr	CPSR_fc, r0
   1016c:	e1a0d002	mov	sp, r2
   10170:	e3a01c02	mov	r1, #512	; 0x200
   10174:	e0822001	add	r2, r2, r1
   10178:	e10f0000	mrs	r0, CPSR
   1017c:	e3c0001f	bic	r0, r0, #31	; 0x1f
   10180:	e3800011	orr	r0, r0, #17	; 0x11
   10184:	e129f000	msr	CPSR_fc, r0
   10188:	e1a0d002	mov	sp, r2
   1018c:	e10f0000	mrs	r0, CPSR
   10190:	e3c0001f	bic	r0, r0, #31	; 0x1f
   10194:	e3800017	orr	r0, r0, #23	; 0x17
   10198:	e129f000	msr	CPSR_fc, r0
   1019c:	e59fd288	ldr	sp, =0x1079270	; via 0x1042c
   101a0:	e10f0000	mrs	r0, CPSR
   101a4:	e3c0001f	bic	r0, r0, #31	; 0x1f
   101a8:	e380001b	orr	r0, r0, #27	; 0x1b
   101ac:	e129f000	msr	CPSR_fc, r0
   101b0:	e59fd274	ldr	sp, =0x1079270	; via 0x1042c
   101b4:	e10f0000	mrs	r0, CPSR
   101b8:	e3c0001f	bic	r0, r0, #31	; 0x1f
   101bc:	e3800013	orr	r0, r0, #19	; 0x13
   101c0:	e129f000	msr	CPSR_fc, r0
   101c4:	e59f3250	ldr	r3, =0x83c0b0	; via 0x1041c
   101c8:	e2822004	add	r2, r2, #4
   101cc:	e5832000	str	r2, [r3]
   101d0:	e3a01b01	mov	r1, #1024	; 0x400
   101d4:	e3c11003	bic	r1, r1, #3
   101d8:	e0822001	add	r2, r2, r1
   101dc:	e59f323c	ldr	r3, =0x83c134	; via 0x10420
   101e0:	e5831000	str	r1, [r3]
   101e4:	e3a01002	mov	r1, #2
   101e8:	e59f3234	ldr	r3, =0x83c144	; via 0x10424
   101ec:	e5831000	str	r1, [r3]
   101f0:	e1a04002	mov	r4, r2
   101f4:	eb09153c	bl	0x2556ec	; _f_load_int_mem
   101f8:	e1a02004	mov	r2, r4
   101fc:	e59f1210	ldr	r1, =0x83c148	; via 0x10414
   10200:	e5910000	ldr	r0, [r1]
   10204:	e3a030fe	mov	r3, #254	; 0xfe
   10208:	e5c03000	strb	r3, [r0]
   1020c:	e5c03001	strb	r3, [r0, #1]
   10210:	e5c03002	strb	r3, [r0, #2]
   10214:	e5c03003	strb	r3, [r0, #3]
   10218:	e4903004	ldr	r3, [r0], #4
   1021c:	e4803004	str	r3, [r0], #4
   10220:	e1500002	cmp	r0, r2
   10224:	bafffffc	blt	0x1021c
   10228:	e51f01e4	ldr	r0, =0x1047c	; via 0x1004c
   1022c:	e3700001	cmn	r0, #1
   10230:	1b00007f	blne	0x10434		; _auto_init
   10234:	e59f01ec	ldr	r0, =0x1078744	; via 0x10428
   10238:	ea09151f	b	0x2556bc	; _INC_Initialize

; $Init_Target:
  2458f0:	b570		push	{r4, r5, r6, lr}
  2458f2:	b081		sub	sp, #4
; write 0x6000 into FFFE:F008 like TCS211
  2458f4:	4d62		ldr	r5, =0xfffef006	; via 0x245a80
  2458f6:	2003		mov	r0, #3
  2458f8:	0340		lsl	r0, r0, #13
  2458fa:	8068		strh	r0, [r5, #2]
; TM_DisableWatchdog() ?
  2458fc:	f006 fd03	bl	0x24c306
; 8 MiB memory bank setup
  245900:	2008		mov	r0, #8
  245902:	8829		ldrh	r1, [r5, #0]
  245904:	4308		orr	r0, r1
  245906:	8028		strh	r0, [r5, #0]

; CNTL_CLK (FFFF:FD02) register setup
;
; TCS211 does this:
;	CNTL_CLK |= 0x0005;
;	CNTL_CLK &= 0xFF3F;
;	CNTL_CLK |= 0x0080;
;	CNTL_CLK &= 0xFFDF;
;
; The present version does this:
;	CNTL_CLK  = 0x0005;
;	CNTL_CLK &= 0xFF3F;
;	CNTL_CLK &= 0xFFDF;
;
; Difference 1: initial straight write vs. OR: it must be the effect
;		of the change in the definition of the CLKM_INITCNTL()
;		macro seen in the diff between MV100 and Sotovik versions.
;
; Difference 2: VTCXO_DIV2 bit setting for Clara (13 MHz) vs. Rita (26 MHz)

  245908:	485e		ldr	r0, =0xfffffd02	; via 0x245a84
  24590a:	2105		mov	r1, #5
  24590c:	8001		strh	r1, [r0, #0]
  24590e:	495e		ldr	r1, =0xff3f	; via 0x245a88
  245910:	8802		ldrh	r2, [r0, #0]
  245912:	4011		and	r1, r2
  245914:	8001		strh	r1, [r0, #0]
  245916:	495d		ldr	r1, =0xffdf	; via 0x245a8c
  245918:	8802		ldrh	r2, [r0, #0]
  24591a:	4011		and	r1, r2
  24591c:	8001		strh	r1, [r0, #0]

; RHEA_CNTL_REG setup: this version writes 0x7F00, TCS211 writes 0xFF00
  24591e:	4e5c		ldr	r6, =0xfffff900	; via 0x245a90
  245920:	207f		mov	r0, #127	; 0x7f
  245922:	0200		lsl	r0, r0, #8
  245924:	8030		strh	r0, [r6, #0]

; PLL setup: the code structure (sequence of steps) is the same as in TCS211,
; but the PLL multiplier is set to 6 instead of 8.  Thus the DSP runs at
; 78 MHz and the ARM runs at 39 MHz.
  245926:	4c5b		ldr	r4, =0xffff9800	; via 0x245a94
  245928:	485b		ldr	r0, =0xfff3	; via 0x245a98
  24592a:	8821		ldrh	r1, [r4, #0]
  24592c:	4008		and	r0, r1
  24592e:	8020		strh	r0, [r4, #0]
  245930:	8820		ldrh	r0, [r4, #0]
  245932:	8020		strh	r0, [r4, #0]
  245934:	4859		ldr	r0, =0xf01f	; via 0x245a9c
  245936:	8821		ldrh	r1, [r4, #0]
  245938:	4008		and	r0, r1
  24593a:	8020		strh	r0, [r4, #0]
  24593c:	2003		mov	r0, #3
  24593e:	0200		lsl	r0, r0, #8
  245940:	8821		ldrh	r1, [r4, #0]
  245942:	4308		orr	r0, r1
  245944:	8020		strh	r0, [r4, #0]

; ARM clock setup: divide by 2 like in TCS211
  245946:	2000		mov	r0, #0
  245948:	2102		mov	r1, #2
  24594a:	2200		mov	r2, #0
  24594c:	f007 fe00	bl	0x24d550

; Memory timings: definitely peculiar
  245950:	4953		ldr	r1, =0xfffffb00	; via 0x245aa0
  245952:	20a5		mov	r0, #165	; 0xa5
  245954:	8008		strh	r0, [r1, #0]
  245956:	8048		strh	r0, [r1, #2]
  245958:	20a2		mov	r0, #162	; 0xa2
  24595a:	8088		strh	r0, [r1, #4]
  24595c:	2085		mov	r0, #133	; 0x85
  24595e:	80c8		strh	r0, [r1, #6]
  245960:	2080		mov	r0, #128	; 0x80
  245962:	8148		strh	r0, [r1, #10]	; 0xa
  245964:	200b		mov	r0, #11	; 0xb
  245966:	0180		lsl	r0, r0, #6
  245968:	8188		strh	r0, [r1, #12]	; 0xc
  24596a:	2040		mov	r0, #64	; 0x40
  24596c:	8108		strh	r0, [r1, #8]

; FFFF:F902 and FFFF:F904 registers set up exactly the same as in TCS211
  24596e:	2020		mov	r0, #32	; 0x20
  245970:	8070		strh	r0, [r6, #2]
  245972:	2000		mov	r0, #0
  245974:	80b0		strh	r0, [r6, #4]

; PLL turn-on just like in TCS211
  245976:	2010		mov	r0, #16	; 0x10
  245978:	8821		ldrh	r1, [r4, #0]
  24597a:	4308		orr	r0, r1
  24597c:	8020		strh	r0, [r4, #0]

; remaining Target_Init() code not studied yet
  24597e:	4849		ldr	r0, =0xfffffa08	; via 0x245aa4
  245980:	4949		ldr	r1, =0xffff	; via 0x245aa8
  245982:	8001		strh	r1, [r0, #0]
  245984:	241f		mov	r4, #31	; 0x1f
  245986:	8044		strh	r4, [r0, #2]
  245988:	2103		mov	r1, #3
  24598a:	8181		strh	r1, [r0, #12]	; 0xc
  24598c:	f005 fc28	bl	0x24b1e0
  245990:	4846		ldr	r0, =0xfffffc00	; via 0x245aac
  245992:	2124		mov	r1, #36	; 0x24
  245994:	8001		strh	r1, [r0, #0]
  245996:	210d		mov	r1, #13	; 0xd
  245998:	8041		strh	r1, [r0, #2]
  24599a:	2300		mov	r3, #0
  24599c:	4844		ldr	r0, =0xfffe2016	; via 0x245ab0
  24599e:	8003		strh	r3, [r0, #0]
  2459a0:	4844		ldr	r0, =0xfffe2014	; via 0x245ab4
  2459a2:	2102		mov	r1, #2
  2459a4:	8001		strh	r1, [r0, #0]
  2459a6:	4844		ldr	r0, =0xfffe2002	; via 0x245ab8
  2459a8:	2184		mov	r1, #132	; 0x84
  2459aa:	8001		strh	r1, [r0, #0]
  2459ac:	4943		ldr	r1, =0xfffe2000	; via 0x245abc
  2459ae:	4844		ldr	r0, =0x3de0	; via 0x245ac0
  2459b0:	8008		strh	r0, [r1, #0]
  2459b2:	4a44		ldr	r2, =0xfffe2022	; via 0x245ac4
  2459b4:	2009		mov	r0, #9
  2459b6:	8010		strh	r0, [r2, #0]
  2459b8:	4843		ldr	r0, =0xfffe2020	; via 0x245ac8
  2459ba:	4a44		ldr	r2, =0x45a	; via 0x245acc
  2459bc:	8002		strh	r2, [r0, #0]
  2459be:	4844		ldr	r0, =0xfffe201e	; via 0x245ad0
  2459c0:	22b4		mov	r2, #180	; 0xb4
  2459c2:	8002		strh	r2, [r0, #0]
  2459c4:	4843		ldr	r0, =0xfffe201c	; via 0x245ad4
  2459c6:	8004		strh	r4, [r0, #0]
  2459c8:	1c1c		add	r4, r3, #0
  2459ca:	4843		ldr	r0, =0xfffe2024	; via 0x245ad8
  2459cc:	8004		strh	r4, [r0, #0]
  2459ce:	4b43		ldr	r3, =0xfffe2010	; via 0x245adc
  2459d0:	2002		mov	r0, #2
  2459d2:	881a		ldrh	r2, [r3, #0]
  2459d4:	4310		orr	r0, r2
  2459d6:	8018		strh	r0, [r3, #0]
  2459d8:	4840		ldr	r0, =0xfffe2010	; via 0x245adc
  2459da:	2304		mov	r3, #4
  2459dc:	8802		ldrh	r2, [r0, #0]
  2459de:	4313		orr	r3, r2
  2459e0:	8003		strh	r3, [r0, #0]
  2459e2:	2027		mov	r0, #39	; 0x27
  2459e4:	80e8		strh	r0, [r5, #6]
  2459e6:	8a08		ldrh	r0, [r1, #16]	; 0x10
  2459e8:	0840		lsr	r0, r0, #1
  2459ea:	d310		bcc	0x245a0e
  2459ec:	8a08		ldrh	r0, [r1, #16]	; 0x10
  2459ee:	0400		lsl	r0, r0, #16
  2459f0:	0c40		lsr	r0, r0, #17
  2459f2:	0040		lsl	r0, r0, #1
  2459f4:	8208		strh	r0, [r1, #16]	; 0x10
  2459f6:	2001		mov	r0, #1
  2459f8:	9000		str	r0, [sp, #0]
  2459fa:	e002		b	0x245a02
  2459fc:	9800		ldr	r0, [sp, #0]
  2459fe:	3001		add	r0, #1
  245a00:	9000		str	r0, [sp, #0]
  245a02:	9800		ldr	r0, [sp, #0]
  245a04:	2832		cmp	r0, #50	; 0x32
  245a06:	d3f9		bcc	0x2459fc
  245a08:	8a48		ldrh	r0, [r1, #18]	; 0x12
  245a0a:	2800		cmp	r0, #0
  245a0c:	d0fc		beq	0x245a08
  245a0e:	f006 fdbf	bl	0x24c590
  245a12:	f006 fdc3	bl	0x24c59c
  245a16:	2027		mov	r0, #39	; 0x27
  245a18:	0500		lsl	r0, r0, #20
  245a1a:	8004		strh	r4, [r0, #0]
  245a1c:	2001		mov	r0, #1
  245a1e:	f006 fc80	bl	0x24c322
  245a22:	2002		mov	r0, #2
  245a24:	f006 fc7d	bl	0x24c322
  245a28:	b001		add	sp, #4
  245a2a:	bd70		pop	{r4, r5, r6, pc}

; $Init_Drivers:
  245a2c:	b500		push	{lr}
  245a2e:	f7ce f9b0	bl	0x213d92
  245a32:	f7af fb41	bl	0x1f50b8
  245a36:	f7da fd20	bl	0x22047a
  245a3a:	f755 fc4f	bl	0x19b2dc
  245a3e:	bd00		pop	{pc}

; $Init_Serial_Flows:
  245a40:	b500		push	{lr}
  245a42:	4827		ldr	r0, =0x10786fc	; via 0x245ae0
  245a44:	f795 f98e	bl	0x1dad64
  245a48:	2000		mov	r0, #0
  245a4a:	2102		mov	r1, #2
  245a4c:	2200		mov	r2, #0
  245a4e:	f795 fbdc	bl	0x1db20a
  245a52:	f795 fc51	bl	0x1db2f8
  245a56:	bd00		pop	{pc}

; $Init_Unmask_IT:
  245a58:	b500		push	{lr}
  245a5a:	2004		mov	r0, #4
  245a5c:	f005 fc21	bl	0x24b2a2
  245a60:	2012		mov	r0, #18	; 0x12
  245a62:	f005 fc1e	bl	0x24b2a2
  245a66:	2007		mov	r0, #7
  245a68:	f005 fc1b	bl	0x24b2a2
  245a6c:	2008		mov	r0, #8
  245a6e:	f005 fc18	bl	0x24b2a2
  245a72:	bd00		pop	{pc}

; The following BX LR instructions must be empty functions in the same init
; module as the recognizable functions above, as they lie between the previous
; code and its associated literal pool.
  245a74:	4770		bx	lr
  245a76:	4770		bx	lr
  245a78:	4770		bx	lr
  245a7a:	4770		bx	lr
  245a7c:	4770		bx	lr
  245a7e:	4770		bx	lr

; Appears to the old Thumb implementation of f_load_int_mem(),
; differs from TCS211 version which is ARM and appears to be assembly
  250408:	b5f0		push	{r4, r5, r6, r7, lr}
  25040a:	4640		mov	r0, r8
  25040c:	4649		mov	r1, r9
  25040e:	4652		mov	r2, r10
  250410:	465b		mov	r3, r11
  250412:	b40f		push	{r0, r1, r2, r3}
  250414:	4f22		ldr	r7, =0x1079168	; via 0x2504a0
  250416:	2000		mov	r0, #0
  250418:	8038		strh	r0, [r7, #0]
  25041a:	4922		ldr	r1, =0x107916a	; via 0x2504a4
  25041c:	4688		mov	r8, r1
  25041e:	8008		strh	r0, [r1, #0]
  250420:	4821		ldr	r0, =0x800000	; via 0x2504a8
  250422:	4922		ldr	r1, =0x81944c	; via 0x2504ac
  250424:	1a09		sub	r1, r1, r0
  250426:	3904		sub	r1, #4
  250428:	468c		mov	r12, r1
  25042a:	2104		mov	r1, #4
  25042c:	180e		add	r6, r1, r0
  25042e:	1c30		add	r0, r6, #0
  250430:	4661		mov	r1, r12
  250432:	f7ff ffe0	bl	0x2503f6
  250436:	4c1e		ldr	r4, =0x83eda4	; via 0x2504b0
  250438:	481e		ldr	r0, =0x83f294	; via 0x2504b4
  25043a:	1b05		sub	r5, r0, r4
  25043c:	1c20		add	r0, r4, #0
  25043e:	1c29		add	r1, r5, #0
  250440:	f7ff ffd9	bl	0x2503f6
  250444:	481c		ldr	r0, =0x20508	; via 0x2504b8
  250446:	4681		mov	r9, r0
  250448:	4661		mov	r1, r12
  25044a:	f7ff ffc7	bl	0x2503dc
  25044e:	4682		mov	r10, r0
  250450:	8038		strh	r0, [r7, #0]
  250452:	481a		ldr	r0, =0x155e8	; via 0x2504bc
  250454:	4683		mov	r11, r0
  250456:	1c29		add	r1, r5, #0
  250458:	f7ff ffc0	bl	0x2503dc
  25045c:	4651		mov	r1, r10
  25045e:	1808		add	r0, r1, r0
  250460:	8038		strh	r0, [r7, #0]
  250462:	4648		mov	r0, r9
  250464:	4661		mov	r1, r12
  250466:	1c32		add	r2, r6, #0
  250468:	f7ff ffae	bl	0x2503c8
  25046c:	4658		mov	r0, r11
  25046e:	1c29		add	r1, r5, #0
  250470:	1c22		add	r2, r4, #0
  250472:	f7ff ffa9	bl	0x2503c8
  250476:	1c30		add	r0, r6, #0
  250478:	4661		mov	r1, r12
  25047a:	f7ff ffaf	bl	0x2503dc
  25047e:	1c06		add	r6, r0, #0
  250480:	4640		mov	r0, r8
  250482:	8006		strh	r6, [r0, #0]
  250484:	1c20		add	r0, r4, #0
  250486:	1c29		add	r1, r5, #0
  250488:	f7ff ffa8	bl	0x2503dc
  25048c:	1830		add	r0, r6, r0
  25048e:	4641		mov	r1, r8
  250490:	8008		strh	r0, [r1, #0]
  250492:	bc0f		pop	{r0, r1, r2, r3}
  250494:	4680		mov	r8, r0
  250496:	4689		mov	r9, r1
  250498:	4692		mov	r10, r2
  25049a:	469b		mov	r11, r3
  25049c:	bdf0		pop	{r4, r5, r6, r7, pc}

; $INC_Initialize:
  254654:	b530		push	{r4, r5, lr}
  254656:	1c05		add	r5, r0, #0
  254658:	4c13		ldr	r4, =0x1079150	; via 0x2546a8
  25465a:	2001		mov	r0, #1
  25465c:	6020		str	r0, [r4, #0]
  25465e:	f001 f9eb	bl	0x255a38
  254662:	f001 f9ed	bl	0x255a40
  254666:	f001 f9ad	bl	0x2559c4
  25466a:	f000 fd45	bl	0x2550f8
  25466e:	f7fb ffa3	bl	0x2505b8
  254672:	f000 ff0d	bl	0x255490
  254676:	f000 fedb	bl	0x255430
  25467a:	f000 fef9	bl	0x255470
  25467e:	f000 fec7	bl	0x255410
  254682:	f000 ff25	bl	0x2554d0
  254686:	f000 fee3	bl	0x255450
  25468a:	f000 ff31	bl	0x2554f0
  25468e:	f7fe faef	bl	0x252c70
  254692:	f000 ff0d	bl	0x2554b0
  254696:	1c28		add	r0, r5, #0
  254698:	f000 fda5	bl	0x2551e6	; app init
  25469c:	2002		mov	r0, #2
  25469e:	6020		str	r0, [r4, #0]
  2546a0:	f001 fefa	bl	0x256498	; $TCT_Schedule veneer
  2546a4:	bd30		pop	{r4, r5, pc}

; $Application_Initialize:
  2551e6:	b500		push	{lr}
  2551e8:	f7f0 fb82	bl	0x2458f0	; $Init_Target
  2551ec:	f7f0 fc1e	bl	0x245a2c	; $Init_Drivers
  2551f0:	f001 fa82	bl	0x2566f8	; $Cust_Init_Layer1
  2551f4:	f7f0 fc24	bl	0x245a40	; $Init_Serial_Flows
  2551f8:	f7a0 fba6	bl	0x1f5948	; $StartFrame
  2551fc:	f7f0 fc2c	bl	0x245a58	; $Init_Unmask_IT
  255200:	bd00		pop	{pc}

  2556a4:	e58de004	str	lr, [sp, #4]
  2556a8:	e28fe001	add	lr, pc, #1
  2556ac:	e12fff1e	bx	lr
  2556b0:	f7e8 f8e6	bl	0x23d880
  2556b4:	4778		bx	pc
  2556b6:	46c0		nop			(mov r8, r8)
  2556b8:	e59df004	ldr	pc, [sp, #4]

; _INC_Initialize call veneer
  2556bc:	e92d4000	stmdb	sp!, {lr}
  2556c0:	e28fe001	add	lr, pc, #1
  2556c4:	e12fff1e	bx	lr
  2556c8:	f7fe ffc4	bl	0x254654
  2556cc:	4778		bx	pc
  2556ce:	46c0		nop			(mov r8, r8)
  2556d0:	e8bd8000	ldmia	sp!, {pc}

  2556d4:	e92d4000	stmdb	sp!, {lr}
  2556d8:	e28fe001	add	lr, pc, #1
  2556dc:	e12fff1e	bx	lr
  2556e0:	f7e7 fb27	bl	0x23cd32
  2556e4:	4778		bx	pc
  2556e6:	46c0		nop			(mov r8, r8)
  2556e8:	e8bd8000	ldmia	sp!, {pc}

; _f_load_int_mem call veneer
  2556ec:	e92d4000	stmdb	sp!, {lr}
  2556f0:	e28fe001	add	lr, pc, #1
  2556f4:	e12fff1e	bx	lr
  2556f8:	f7fa fe86	bl	0x250408
  2556fc:	4778		bx	pc
  2556fe:	46c0		nop			(mov r8, r8)
  255700:	e8bd8000	ldmia	sp!, {pc}

  255704:	e92d4000	stmdb	sp!, {lr}
  255708:	e28fe001	add	lr, pc, #1
  25570c:	e12fff1e	bx	lr
  255710:	f7ff fd69	bl	0x2551e6
  255714:	4778		bx	pc
  255716:	46c0		nop			(mov r8, r8)
  255718:	e8bd8000	ldmia	sp!, {pc}

  25571c:	e92d4000	stmdb	sp!, {lr}
  255720:	e28fe001	add	lr, pc, #1
  255724:	e12fff1e	bx	lr
  255728:	f76e f932	bl	0x1c3990
  25572c:	4778		bx	pc
  25572e:	46c0		nop			(mov r8, r8)
  255730:	e8bd8000	ldmia	sp!, {pc}

  255734:	e92d4000	stmdb	sp!, {lr}
  255738:	e28fe001	add	lr, pc, #1
  25573c:	e12fff1e	bx	lr
  255740:	f7a6 fe10	bl	0x1fc364
  255744:	4778		bx	pc
  255746:	46c0		nop			(mov r8, r8)
  255748:	e8bd8000	ldmia	sp!, {pc}

  25574c:	e92d4000	stmdb	sp!, {lr}
  255750:	e28fe001	add	lr, pc, #1
  255754:	e12fff1e	bx	lr
  255758:	f6f4 fa10	bl	0x149b7c
  25575c:	4778		bx	pc
  25575e:	46c0		nop			(mov r8, r8)
  255760:	e8bd8000	ldmia	sp!, {pc}

  255764:	e92d4000	stmdb	sp!, {lr}
  255768:	e28fe001	add	lr, pc, #1
  25576c:	e12fff1e	bx	lr
  255770:	f785 ff3b	bl	0x1db5ea
  255774:	4778		bx	pc
  255776:	46c0		nop			(mov r8, r8)
  255778:	e8bd8000	ldmia	sp!, {pc}

  25577c:	e92d4000	stmdb	sp!, {lr}
  255780:	e28fe001	add	lr, pc, #1
  255784:	e12fff1e	bx	lr
  255788:	f785 ff10	bl	0x1db5ac
  25578c:	4778		bx	pc
  25578e:	46c0		nop			(mov r8, r8)
  255790:	e8bd8000	ldmia	sp!, {pc}