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Implement integer stack opcodes

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gamer147
2026-07-29 15:18:07 -04:00
parent 682f65318b
commit 71ae1b7c5b
6 changed files with 200 additions and 6 deletions
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docs/engine-re.md
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@@ -1685,6 +1685,12 @@ at `+0x55180`. Himegari's queue and stack sites use only id 0. Its sole `0x137`
`CALLBACK_LOAD@0xf2`, immediately before the helper that rebuilds the eight retained ADV layers; no
Himegari script calls `0x138` or `0x139`.
The portable VM implements the complete family as eleven isolated logical stacks. All slots exist at
scene entry, root reload reconstructs them empty, and `0x137` replaces only the selected slot. This keeps
the handler-admitted id-10 ABI without allowing it to overwrite numeric-glyph state. Empty `0x139`
preserves `out_value` while writing success zero, because reproducing the native leaked `EngineCtx *`
would expose meaningless host-dependent data rather than a script-observable engine value.
`op_0x241_play_movie_to_surface_at_position@0x4247e0` is an exact five-operand extension of `0x236`:
`(movie_resource, surface_slot, movie_and_sound_flags, start_delay_ms, position_ms)`.