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Correct ADV History layout addressing

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gamer147
2026-07-19 10:43:52 -04:00
parent 1fdedfb41f
commit 280705d69c
9 changed files with 200 additions and 48 deletions
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11
vm-map/opcodes.toml
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@@ -796,13 +796,14 @@ abi_source = "kelebek+decode-validated"
[opcode.semantics]
name = "lookup-array"
category = "unknown"
summary = ""
category = "compute"
summary = "Take a typed reference to base[index], preserving whether the base belongs to local or global storage."
noop_headless = false
source = "kelebek"
confidence = "med"
source = "investigation"
confidence = "high"
depends_on = []
evidence = ""
evidence = "HISTORY.BIN copies x/y tables into local-int cells 0x4 and 0x68, then lookup-array local-ptr <- local-int base supplies every right-side button and hovered-row draw coordinate. Treating the local operand's current value as a global base collapses those draws to (0,0); retaining the local address yields the native x=768/y=121..549 positions. RECOVER.BIN independently exercises the same pointer destination with global bases."
details = "Operand 2 names the base cell itself: a global-bank operand produces a global reference and a local-bank operand produces a local reference. Operand 3 is added as the element offset. Pointer destinations retain that address domain; reading or writing the pointer dereferences the corresponding bank. Non-pointer destinations receive the addressed value. The same domain-preserving address model applies to lookup-array-2d (0x12c)."
[[opcode.semantics.args]]
i = 1