Nick Thomas
acb7882549
`WarHammer.ani` turns out to be a regular `obj` file; `WarHammer.idx` is partially decoded, but I'm struggling to link it to the former in a reasonable way at the moment.
306 lines
12 KiB
Markdown
306 lines
12 KiB
Markdown
# `Anim/WarHammer.ani`
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This turns out to simply be an [`obj`](obj.md#WarHammer.ani) file. However, some
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other files are implicated in its interpretation:
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- `Data/AniObDef.dat`
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- `Idx/WarHammer.idx`
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Including comments, the former is 4098 lines, giving approx. 45 lines for each
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of the ~188 characters in the `ani`. That doesn't seem many, and there's no
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obvious correspondence between the commented-on names (`SMOKE01`?) and the
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viewed frames... but then, I've not viewed all the frames.
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Still, I think a focus in `WarHammer.idx` (1,880,078 bytes, binary, so around
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10KiB per character, in theory) is more reasonable.
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Here's a list of operations on the file when `WH40K_TD.EXE` is instructed to
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place an Ultramarine squad:
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<details>
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```
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# Operation 1
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_llseek(34, 12, [12], SEEK_SET) = 0
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read(34, "\0\30\0\0X\4\0\0\0\0\0\0", 12) = 12
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# Operation 2
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_llseek(34, 6144, [6144], SEEK_SET) = 0
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read(34, "\2\6\1\0 L\0\0\r\0\0\0", 12) = 12
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_llseek(34, 6156, [6156], SEEK_SET) = 0
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read(34, "\2\6\2\0\202L\0\0\r\0\0\0", 12) = 12
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_llseek(34, 6168, [6168], SEEK_SET) = 0
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read(34, "\2\6\3\0\344L\0\0\r\0\0\0", 12) = 12
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_llseek(34, 6180, [6180], SEEK_SET) = 0
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read(34, "\2\6\4\0FM\0\0\r\0\0\0", 12) = 12
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_llseek(34, 6192, [6192], SEEK_SET) = 0
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read(34, "\2\6\5\0\250M\0\0\r\0\0\0", 12) = 12
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# Operation 3
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_llseek(34, 19880, [19880], SEEK_SET) = 0
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read(34, "4\0@\0@\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) = 20
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read(34, "\0\0\6\0\4\0\0\0\6\0\4\0\0\0\6\0\4\0\0\0\5\0\4\0\0\0\5\0\4\0\0\0"..., 78) = 78
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# Operation 4: repeat 1
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# Operation 5: repeat 2
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# Operation 6: repeat 3
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# Operation 7
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_llseek(34, 24, [24], SEEK_SET) = 0
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read(34, "0\212\1\0X\4\0\0\210&\0\0", 12) = 12
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# Operation 8
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_llseek(34, 100912, [100912], SEEK_SET) = 0
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read(34, "\2\6\1\0P\276\1\0\r\0\0\0", 12) = 12
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_llseek(34, 100924, [100924], SEEK_SET) = 0
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read(34, "\2\6\2\0\262\276\1\0\r\0\0\0", 12) = 12
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_llseek(34, 100936, [100936], SEEK_SET) = 0
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read(34, "\2\6\3\0\24\277\1\0\r\0\0\0", 12) = 12
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_llseek(34, 100948, [100948], SEEK_SET) = 0
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read(34, "\2\6\4\0v\277\1\0\r\0\0\0", 12) = 12
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_llseek(34, 100960, [100960], SEEK_SET) = 0
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read(34, "\2\6\5\0\330\277\1\0\r\0\0\0", 12) = 12
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# Operation 9
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_llseek(34, 114648, [114648], SEEK_SET) = 0
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read(34, "4\0@\0@\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) = 20
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# Operation 10
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_llseek(34, 114648, [114648], SEEK_SET) = 0
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read(34, "4\0@\0@\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) = 20
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read(34, "\0\0\6\0\4\0\0\0\6\0\4\0\0\0\6\0\4\0\0\0\5\0\4\0\0\0\5\0\4\0\0\0"..., 78) = 78
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# Operation 11: repeat 7
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# Operation 12: repeat 8
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# Operation 13: repeat 9
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# lots of repeats
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```
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</details>
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So what are we doing here? What did we read? Here's another view of it:
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```
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# Operation 1: read 12 bytes from 0x0C
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0000000C 00 18 00 00 58 04 00 00 00 00 00 00 ....X.......
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# Operation 7: read 12 bytes from offset 0x18
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00000018 30 8A 01 00 58 04 00 00 88 26 00 00 0...X....&..
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# Operation 2: 5 times, read 12 bytes from offset 0x1800
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00001800 02 06 01 00 20 4C 00 00 0D 00 00 00 .... L......
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0000180C 02 06 02 00 82 4C 00 00 0D 00 00 00 .....L......
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00001818 02 06 03 00 E4 4C 00 00 0D 00 00 00 .....L......
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00001824 02 06 04 00 46 4D 00 00 0D 00 00 00 ....FM......
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00001830 02 06 05 00 A8 4D 00 00 0D 00 00 00 .....M......
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# Operation 3a: read 20 bytes from offset 0x4DA8
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00004DA8 34 00 40 00 40 00 01 00 00 00 00 00 4.@.@.......
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00004DB4 00 00 00 00 00 00 00 00 ........
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# Operation 3b: read 78 more bytes
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00004DBC 00 00 06 00 04 00 00 00 06 00 04 00
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00004DC8 00 00 06 00 04 00 00 00 05 00 04 00
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00004DD4 00 00 05 00 04 00 00 00 03 00 04 00
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00004DE0 00 00 04 00 FC FF 00 00 05 00 FC FF
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00004DEC 00 00 06 00 FC FF 00 00 05 00 FC FF
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00004DF8 00 00 06 00 FC FF 00 00 06 00 FC FF
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00004E04 00 00 00 00 00 00
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# Operation 8: 5 times, read 12 bytes from offset 0x18A30
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00018A30 02 06 01 00 50 BE 01 00 0D 00 00 00 ....P.......
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00018A3C 02 06 02 00 B2 BE 01 00 0D 00 00 00 ............
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00018A48 02 06 03 00 14 BF 01 00 0D 00 00 00 ............
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00018A54 02 06 04 00 76 BF 01 00 0D 00 00 00 ....v.......
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00018A60 02 06 05 00 D8 BF 01 00 0D 00 00 00 ............
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# Operation 9a: read 20 bytes from offset 0x1BFD8
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0001BFD8 34 00 40 00 40 00 01 00 00 00 00 00 4.@.@.......
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0001BFE4 00 00 00 00 00 00 00 00 ........
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# Operation 9b: read 78 more bytes
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0001BFEC 00 00 06 00 04 00 00 00 06 00 04 00
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0001BFF8 00 00 06 00 04 00 00 00 05 00 04 00
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0001C004 00 00 05 00 04 00 00 00 03 00 04 00
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0001C010 00 00 04 00 FC FF 00 00 05 00 FC FF
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0001C01C 00 00 06 00 FC FF 00 00 05 00 FC FF
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0001C028 00 00 06 00 FC FF 00 00 06 00 FC FF
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0001C034 00 00 00 00 00 00
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```
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Operation 1 contains `[18 00]`. Operation 2, at `0x1800`, contains `[A8 4D]` -
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and operation 3 starts at `0x4DA8`. The pattern repeats for operations
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7 -> 8 -> 9.
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Assumimg operations 1 & 7 represent one type of record, while 2 & 8 represent
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another, that would give us a 511-entry directory starting at 0xC. We know the
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first 4 bytes represent an offset to find the type of record represented by
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2 & 8. We don't know about the other 8 bytes.
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| Offset | Size | Meaning |
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| ------ | ---- | ------- |
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| 0 | 4 | Position of type 2 record(s) |
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| 4 | ? | Unknown |
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The records represented by operations 2 & 8 both read 5x 12-byte records, but it
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looks like they're arranged in blocks of 8. Nothing in type 1 records indicates
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how many type 2 records there are.
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| Offset | Size | Meaning |
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| ------ | ---- | ------- |
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| 0 | 2? | `02 06` - ??? |
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| 2 | 2? | `n xx` - ??? `n` counts from 1 to 8 |
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| 4 | 4 | Position of type 3 record |
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The two type 3a and 3b records are identical to each other, it's hard to know
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what's what.
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None of the unknown numbers, however sliced, seem to be sprite indices for
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`Anim/WarHammer.ani`.
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Here's a trace of both `idx` (fd 34) and `ani` (fd 14) files when placing a
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single librarian for me to dig into in more detail.
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<details>
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```
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read(14, "~\337\2\0 \0\0\0\360\373\26\0\20\374\26\0\245J\303\30\0\0\0\0\0\0\0\0(\222R\0", 32) = 32
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_llseek(34, 132, [132], SEEK_SET) = 0
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read(34, "0|\t\0\230\0\0\0\210\370\0\0", 12) = 12
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_llseek(34, 132, [132], SEEK_SET) = 0
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read(34, "0|\t\0\230\0\0\0\210\370\0\0", 12) = 12
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_llseek(34, 621616, [621616], SEEK_SET) = 0
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read(34, "\2\1\0013P\203\t\0\r\0\0\0", 12) = 12
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_llseek(34, 621628, [621628], SEEK_SET) = 0
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read(34, "\2\1\0023\262\203\t\0\r\0\0\0", 12) = 12
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_llseek(34, 621640, [621640], SEEK_SET) = 0
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read(34, "\2\1\0033\24\204\t\0\r\0\0\0", 12) = 12
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_llseek(34, 621652, [621652], SEEK_SET) = 0
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read(34, "\2\1\0043v\204\t\0\r\0\0\0", 12) = 12
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_llseek(34, 621664, [621664], SEEK_SET) = 0
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read(34, "\2\1\0053\330\204\t\0\r\0\0\0", 12) = 12
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_llseek(34, 623832, [623832], SEEK_SET) = 0
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read(34, "4\0@\0@\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) = 20
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_llseek(14, 509440, [509440], SEEK_SET) = 0
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read(14, "\fM\266\th\16\0\0", 8) = 8
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_llseek(14, 509448, [509448], SEEK_SET) = 0
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read(14, "t[\266\t\376\16\0\0", 8) = 8
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_llseek(14, 509456, [509456], SEEK_SET) = 0
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read(14, "rj\266\tg\17\0\0", 8) = 8
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_llseek(14, 509464, [509464], SEEK_SET) = 0
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read(14, "\331y\266\t\251\17\0\0", 8) = 8
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_llseek(14, 509472, [509472], SEEK_SET) = 0
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read(14, "\202\211\266\t\273\17\0\0", 8) = 8
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_llseek(14, 509480, [509480], SEEK_SET) = 0
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read(14, "=\231\266\t\10\20\0\0", 8) = 8
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_llseek(14, 509488, [509488], SEEK_SET) = 0
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read(14, "E\251\266\t\321\17\0\0", 8) = 8
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_llseek(14, 509496, [509496], SEEK_SET) = 0
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read(14, "\26\271\266\t\1\17\0\0", 8) = 8
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_llseek(14, 509504, [509504], SEEK_SET) = 0
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read(14, "\27\310\266\t\304\16\0\0", 8) = 8
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_llseek(14, 509512, [509512], SEEK_SET) = 0
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read(14, "\333\326\266\t\343\16\0\0", 8) = 8
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_llseek(14, 509520, [509520], SEEK_SET) = 0
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read(14, "\276\345\266\t\f\17\0\0", 8) = 8
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_llseek(14, 509528, [509528], SEEK_SET) = 0
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read(14, "\312\364\266\tA\17\0\0", 8) = 8
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_llseek(14, 509536, [509536], SEEK_SET) = 0
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read(14, "\v\4\267\t\246\17\0\0", 8) = 8
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_llseek(14, 509440, [509440], SEEK_SET) = 0
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read(14, "\fM\266\th\16\0\0", 8) = 8
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_llseek(14, 164448540, [164448540], SEEK_SET) = 0
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read(14, "\367\0\n\0015\0T\0\0\0\0\0P\16\0\0\324q;\1\0\0\0\0\200\23\207**+*+"..., 3688) = 3688
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_llseek(14, 509448, [509448], SEEK_SET) = 0
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read(14, "t[\266\t\376\16\0\0", 8) = 8
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_llseek(14, 164452228, [164452228], SEEK_SET) = 0
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read(14, "\365\0\10\0017\0W\0\0\0\0\0\346\16\0\0\324q;\1\0\0\0\0\200\25\3*\212+*,"..., 3838) = 3838
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_llseek(14, 509456, [509456], SEEK_SET) = 0
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read(14, "rj\266\tg\17\0\0", 8) = 8
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_llseek(14, 164456066, [164456066], SEEK_SET) = 0
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read(14, "\364\0\10\19\0Z\0\0\0\0\0O\17\0\0\324q;\1\0\0\0\0\200\30\201*\5+\200\33"..., 3943) = 3943
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_llseek(14, 509464, [509464], SEEK_SET) = 0
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read(14, "\331y\266\t\251\17\0\0", 8) = 8
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_llseek(14, 164460009, [164460009], SEEK_SET) = 0
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read(14, "\356\0\7\1B\0[\0\0\0\0\0\221\17\0\0\324q;\1\0\0\0\0\200\"\201*\200\37\0\200"..., 4009) = 4009
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_llseek(14, 509472, [509472], SEEK_SET) = 0
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read(14, "\202\211\266\t\273\17\0\0", 8) = 8
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_llseek(14, 164464018, [164464018], SEEK_SET) = 0
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read(14, "\356\0\n\1C\0\\\0\0\0\0\0\243\17\0\0\324q;\1\0\0\0\0\200#\3)\3+\200\32"..., 4027) = 4027
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_llseek(14, 509480, [509480], SEEK_SET) = 0
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read(14, "=\231\266\t\10\20\0\0", 8) = 8
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_llseek(14, 164468045, [164468045], SEEK_SET) = 0
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read(14, "\354\0\t\1C\0Z\0\0\0\0\0\360\17\0\0\324q;\1\0\0\0\0\200$\201*\200\36\0\200"..., 4104) = 4104
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_llseek(14, 509488, [509488], SEEK_SET) = 0
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read(14, "E\251\266\t\321\17\0\0", 8) = 8
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_llseek(14, 164472149, [164472149], SEEK_SET) = 0
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read(14, "\356\0\t\1?\0V\0\0\0\0\0\271\17\0\0\324q;\1\0\0\0\0\200\35\212&&H)*"..., 4049) = 4049
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_llseek(14, 509496, [509496], SEEK_SET) = 0
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read(14, "\26\271\266\t\1\17\0\0", 8) = 8
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_llseek(14, 164476198, [164476198], SEEK_SET) = 0
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read(14, "\366\0\10\0015\0[\0\0\0\0\0\351\16\0\0\324q;\1\0\0\0\0\200\20\201*\4+\206*"..., 3841) = 3841
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_llseek(14, 509504, [509504], SEEK_SET) = 0
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read(14, "\27\310\266\t\304\16\0\0", 8) = 8
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_llseek(14, 164480039, [164480039], SEEK_SET) = 0
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read(14, "\367\0\7\0013\0[\0\0\0\0\0\254\16\0\0\324q;\1\0\0\0\0\200\33\210+,+,,"..., 3780) = 3780
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_llseek(14, 509512, [509512], SEEK_SET) = 0
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read(14, "\333\326\266\t\343\16\0\0", 8) = 8
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_llseek(14, 164483819, [164483819], SEEK_SET) = 0
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read(14, "\370\0\7\1A\0_\0\0\0\0\0\313\16\0\0\324q;\1\0\0\0\0\200\34\203,,*\200\""..., 3811) = 3811
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_llseek(14, 509520, [509520], SEEK_SET) = 0
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read(14, "\276\345\266\t\f\17\0\0", 8) = 8
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_llseek(14, 164487630, [164487630], SEEK_SET) = 0
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read(14, "\370\0\7\1H\0`\0\0\0\0\0\364\16\0\0\324q;\1\0\0\0\0\200\35\201,\200*\0\200"..., 3852) = 3852
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_llseek(14, 509528, [509528], SEEK_SET) = 0
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read(14, "\312\364\266\tA\17\0\0", 8) = 8
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_llseek(14, 164491482, [164491482], SEEK_SET) = 0
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read(14, "\373\0\10\1;\0Z\0\0\0\0\0)\17\0\0\324q;\1\0\0\0\0\200\36\202+,\200\33\0"..., 3905) = 3905
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_llseek(14, 509536, [509536], SEEK_SET) = 0
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read(14, "\v\4\267\t\246\17\0\0", 8) = 8
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_llseek(14, 164495387, [164495387], SEEK_SET) = 0
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read(14, "\366\0\n\18\0Y\0\0\0\0\0\216\17\0\0\324q;\1\0\0\0\0\200\32\t+\205*\4,"..., 4006) = 4006
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_llseek(34, 623832, [623832], SEEK_SET) = 0
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read(34, "4\0@\0@\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) = 20
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read(34, "\0\0\6\0\4\0\0\0\6\0\4\0\0\0\6\0\4\0\0\0\5\0\4\0\0\0\5\0\4\0\0\0"..., 78) = 78
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_llseek(34, 132, [132], SEEK_SET) = 0
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read(34, "0|\t\0\230\0\0\0\210\370\0\0", 12) = 12
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_llseek(34, 621616, [621616], SEEK_SET) = 0
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read(34, "\2\1\0013P\203\t\0\r\0\0\0", 12) = 12
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_llseek(34, 621628, [621628], SEEK_SET) = 0
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read(34, "\2\1\0023\262\203\t\0\r\0\0\0", 12) = 12
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_llseek(34, 621640, [621640], SEEK_SET) = 0
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read(34, "\2\1\0033\24\204\t\0\r\0\0\0", 12) = 12
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_llseek(34, 621652, [621652], SEEK_SET) = 0
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read(34, "\2\1\0043v\204\t\0\r\0\0\0", 12) = 12
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_llseek(34, 621664, [621664], SEEK_SET) = 0
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read(34, "\2\1\0053\330\204\t\0\r\0\0\0", 12) = 12
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_llseek(34, 623832, [623832], SEEK_SET) = 0
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read(34, "4\0@\0@\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) = 20
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```
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</details>
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Notable is that we still load 5 type 2 records, even though there's just a
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single librarian, and 8 compass points. Why 5?
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