880a4d562b
The declaration entry's kind word (+0x28) and its focus/nav index (+0x2C) are the same fact twice: kind & 0x2 is set iff the focus index is >= 0. Checked over 24 UI paks and every parseable build in each -- 1062 focusable elements, 14431 not, zero exceptions. The test is two-sided, so it would fail if any focusable element lacked the bit or any non-focusable element carried it. Consequence: kind == 0x3002 is not the test for a button. It catches 778 of 1062 and misses 284 (26.7 %) at 0x2, 0x2002, 0x3003, 0x73002, 0x73003 -- including ptbtn00.rat on GP_TITLE's PRESS (A) plate, which is 0x73002. And 0x3000, 817 elements, looks like a button and is not focusable. This is also the refutation attempt on sylpheed-port's kind census. Their claim -- every decoration 0x0, every button 0x3002 -- is exactly right on the two screens they checked, reproduced here independently, and fails one build over on the title they have not run yet. The other kind bits are reported as observed structure and explicitly not claimed. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
90 lines
3.5 KiB
Plaintext
90 lines
3.5 KiB
Plaintext
# `kind` bit 0x2 is the FOCUSABLE flag -- decoded, disc-wide. 2026-08-31.
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#
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# cargo run -p sylpheed-formats --example kind_census_five_screens (SYLPHEED_DISC=/disc)
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#
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# The declaration entry's kind word (+0x28) and its focus/nav index (+0x2C) are
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# two fields nobody had cross-checked. The index is -1 on anything that cannot
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# take the cursor, so if the two agree everywhere, the bit that separates them is
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# IDENTIFIED rather than guessed.
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#
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# bit 0x2 of kind == (focus index >= 0) 0 violations in 15493 entries
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#
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# 24 UI paks, every parseable build in each. 1062 focusable elements, 14431 not.
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#
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# WHY IT MATTERS: `kind == 0x3002` is NOT the test for a button. It catches 778
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# of 1062 focusable elements and MISSES 284 -- 26.7 % -- at 0x2, 0x2002, 0x3003,
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# 0x73002 and 0x73003. On GP_TITLE that is `ptbtn00.rat` on the PRESS (A) plate
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# (entries 2 and 3), which is 0x73002. And 0x3000 (817 elements) resembles
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# 0x3002 and is NOT focusable.
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#
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# The low bits look like independent flags -- 0x1 with a parent, 0x4 a repeated
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# template instance, 0x10 a primitive -- and 0x2000/0x3000/0x70000 like a group
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# in the high half. Only bit 0x2 is decoded here; the rest is observed structure
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# and is NOT claimed.
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GP_TITLE: 16 parseable builds of 16 entries
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kind elements by file suffix
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0x0 .ratx27 .t32x102
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0x1 .t32x2
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0x4 .t32x8
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0x10 .prmx18
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0x3000 .t32x3
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0x3002 .ratx16
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0x73002 .ratx2
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NON-BUTTON .t32 elements with kind != 0: 13
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entry 4 ptlogo1.t32 kind 0x4
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entry 4 ptlogo2.t32 kind 0x4
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entry 4 ptlogo1.t32 kind 0x4
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entry 4 ptlogo2.t32 kind 0x4
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entry 4 ptlogoall_eff.t32 kind 0x3000
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entry 4 ptlogoall_eff2.t32 kind 0x3000
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entry 7 ptlogo1.t32 kind 0x4
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entry 7 ptlogo2.t32 kind 0x4
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entry 7 ptlogo1.t32 kind 0x4
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entry 7 ptlogo2.t32 kind 0x4
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entry 7 ptlogo_all_eff.t32 kind 0x3000
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entry 10 palogo_sqex_eff.t32 kind 0x1
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entry 13 palogo_sqex_eff.t32 kind 0x1
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*btn* elements with kind != 0x3002: 2
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entry 2 ptbtn00.rat kind 0x73002
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entry 3 ptbtn00.rat kind 0x73002
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kind vs the focus index at +0x2C (-1 = not focusable), GP_TITLE:
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kind 0x0 focus = -1 129 elements
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kind 0x1 focus = -1 2 elements
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kind 0x4 focus = -1 8 elements
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kind 0x10 focus = -1 18 elements
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kind 0x3000 focus = -1 3 elements
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kind 0x3002 focus >= 0 16 elements
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kind 0x73002 focus >= 0 2 elements
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DISC-WIDE — 24 UI paks, 15493 declaration entries
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kind focus = -1 focus >= 0
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0x0 7459 0
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0x1 1093 0
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0x2 0 16
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0x4 2964 0
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0x5 282 0
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0x8 650 0
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0x9 6 0
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0xC 48 0
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0x10 329 0
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0x14 2 0
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0x2002 0 16
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0x3000 817 0
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0x3001 10 0
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0x3002 0 778
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0x3003 0 192
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0x3004 426 0
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0x3008 72 0
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0x300C 135 0
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0x3010 38 0
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0x73002 0 64
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0x73003 0 96
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HYPOTHESIS: bit 0x2 of kind == (focus index >= 0)
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violations: 0 of 15493
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