それを objdump -d で逆アセンブル (したものを少し手で直して)
00000000 <.text>:
...
100: 48 00 08 1c b 0x91c
104: 48 00 00 00 b 0x104
'07132004 031416.8'
108: 30 37 31 33
10c: 32 30 30 34
110: 20 30 33 31
114: 34 31 37 00
118: 38 60 00 00 `
11c: 4e 80 00 20 blr 0x13c
120: 38 80 06 f0 li r4,1776
124: 48 00 00 10 b 0x134
128: 38 80 06 ec li r4,1772
12c: 48 00 00 08 b 0x134
130: 38 80 06 e8 li r4,1768
134: 7c 08 02 a6 mflr r0
138: 48 00 00 05 bl 0x13c
13c: 7c 68 02 a6 mflr r3
これは fff0091c に飛んでいるので、その辺りを
00000000 <.text>:
...
91c: 7c 70 fa a6 mfdbsr r3
920: 74 60 00 01 andis. r0,r3,1
924: 41 82 00 34 beq- 0x958
928: 3c 80 12 34 lis r4,4660
92c: 60 84 56 78 ori r4,r4,22136
930: 7c a8 02 a6 mflr r5
934: 7e 04 28 00 cmpw cr4,r4,r5
938: 41 92 00 18 beq- cr4,0x950
93c: 48 00 00 05 bl 0x940
940: 7c 08 02 a6 mflr r0
944: 6c 00 ff f0 xoris r0,r0,65520
948: 74 00 ff f0 andis. r0,r0,65520
94c: 41 82 00 08 beq- 0x954
950: 48 00 24 e0 b 0x2e30
954: 48 00 02 ad bl 0xc00
958: 38 40 00 01 li r2,1
95c: 7c 51 43 a6 mtsprg 1,r2
960: 38 40 10 40 li r2,4160
964: 7c 40 01 24 mtmsr r2
968: 4c 00 01 2c isync
96c: 3c 00 ff ff lis r0,-1
970: 7c 1a 43 a6 mtear r0
974: 48 00 17 b8 b 0x212c
978: 38 00 00 00 li r0,0
97c: 64 00 80 00 oris r0,r0,32768
980: 4c 00 01 2c isync
984: 7c 00 01 a4 mtsr 0,r0
988: 7c 01 01 a4 mtsr 1,r0
98c: 7c 02 01 a4 mtsr 2,r0
990: 7c 03 01 a4 mtsr 3,r0
994: 7c 04 01 a4 mtsr 4,r0
998: 7c 05 01 a4 mtsr 5,r0
99c: 7c 06 01 a4 mtsr 6,r0
9a0: 7c 07 01 a4 mtsr 7,r0
9a4: 7c 08 01 a4 mtsr 8,r0
9a8: 7c 09 01 a4 mtsr 9,r0
9ac: 7c 0a 01 a4 mtsr 10,r0
9b0: 7c 0b 01 a4 mtsr 11,r0
9b4: 7c 0c 01 a4 mtsr 12,r0
9b8: 7c 0d 01 a4 mtsr 13,r0
9bc: 7c 0e 01 a4 mtsr 14,r0
9c0: 7c 0f 01 a4 mtsr 15,r0
9c4: 4b ff fc c8 b 0x68c
...
a00: 7c 08 02 a6 mflr r0
a04: 7c 09 03 a6 mtctr r0
a08: 60 65 00 00 ori r5,r3,0
a0c: 60 67 00 00 ori r7,r3,0
a10: 3d 00 00 01 lis r8,1
a14: 38 63 08 04 addi r3,r3,2052
a18: 2c 04 00 01 cmpwi r4,1
a1c: 40 82 00 1c bne- 0xa38
a20: 3d 00 00 0f lis r8,15
a24: 80 c3 00 10 lwz r6,16(r3)
a28: 7c 63 32 14 add r3,r3,r6
a2c: 7c a7 32 14 add r5,r7,r6
a30: 7c 05 38 40 cmplw r5,r7
a34: 40 81 00 30 ble- 0xa64
a38: 80 c3 00 20 lwz r6,32(r3)
a3c: 80 03 00 1c lwz r0,28(r3)
a40: 48 00 00 2d bl 0xa6c
a44: 4b ff fb c1 bl 0x604
a48: 88 8a 00 01 lbz r4,1(r10)
a4c: 88 aa 00 00 lbz r5,0(r10)
a50: 50 a4 44 2e rlwimi r4,r5,8,16,23
a54: 00 00 00 00 .long 0x0