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quoije d56f6f12b0 Add VSMX bytecode interpreter

- VsmxInterpreter: stack machine executing all 74 VSMX opcodes
  (arithmetic, comparisons, bitwise, jumps, calls, arrays, objects).
- Object model: VsmxBaseObject/Undefined/Null/Boolean/Number/String/
  Object/Array/Function/Reference/LocalVarReference/Method/CallState/
  NativeObject, plus BaseNativeObject for future native objects.
- CLI 'rco' now runs the menu script headlessly and prints the 172
  resulting global variables (state, chapter/language config, focus).
- Validated against Batman Begins: script runs with zero unimplemented-
  opcode warnings and defines all menu functions (on_cancel, mm_on_push,
  trans_to_play, play_movie_beginning, ...).

2026-09-15 22:39:36 -04:00

cli

Add VSMX bytecode interpreter

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core

Add VSMX bytecode interpreter

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gradle

Add MPS demuxer and FFmpeg H.264 video decode

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Scaffold Java 21 multi-module project with UMD ISO + SFO parsing

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.gitignore

Scaffold Java 21 multi-module project with UMD ISO + SFO parsing

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build.gradle.kts

Scaffold Java 21 multi-module project with UMD ISO + SFO parsing

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gradlew

Scaffold Java 21 multi-module project with UMD ISO + SFO parsing

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gradlew.bat

Scaffold Java 21 multi-module project with UMD ISO + SFO parsing

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LICENSE

Scaffold Java 21 multi-module project with UMD ISO + SFO parsing

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README.md

Add playback engine with A/V timestamping

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settings.gradle.kts

Scaffold Java 21 multi-module project with UMD ISO + SFO parsing

2026-09-15 21:00:22 -04:00

README.md

useless-umd-player

a standalone player for PSP UMD Video ISO images: open a disc, render its real menu, and play the movie (H.264 video + ATRAC3+ audio) with mouse and keyboard/media-key controls.

Status: early development. Currently implemented: ISO 9660/UMD reading, param.sfo metadata parsing, and file listing.

Build

Requires JDK 21 (Gradle auto-provisions it via the Foojay toolchain resolver).

./gradlew build

Run

./gradlew cli:run --args="dump /path/to/disc.iso"

License

GPL-3.0-or-later — see LICENSE.