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Nakagawa Recomp Wiki

Important

Nakagawa Recomp is an experimental PSP static recompiler and native compatibility runtime—not a game download, firmware bundle, or general-purpose PSP emulator.

🚀 Getting Started	📊 Current Status	🏗️ Architecture
Prepare the supported Windows toolchain and lawful local inputs.	See what is working, partial, open, and planned.	Follow the executable-to-native-runtime pipeline.
🧭 Repository Tour	🧪 Verification	🛠️ Contributing
Find the recompiler, runtime, fixtures, and maintained docs.	Understand what each evidence tier can—and cannot—prove.	Make a focused, reviewable, public-safe change.

At a glance

Project dimension	Current public truth
Deepest title validation	Hot Shots Tennis: Get a Grip, USA (UCUS-98701)
Current first-class host	Windows 11 x64
Future native targets	Linux and macOS; not supported end-to-end today
Compatibility scope	Title-focused research; general PSP compatibility is not claimed
Guest framebuffer	480x272
Current host presentation	Resizable 960x544 start; a selectable native 480x272/1x mode is not implemented
Public release state	Fresh-machine, public-source, user-supplied-input acceptance is not yet complete

The public source contains the recompiler tooling, native runtime, synthetic fixtures, reference-interpreter support, and audit/verification infrastructure. Users provide their own lawful title inputs locally. Retail game binaries, decrypted modules, keys, proprietary assets, generated retail-title C, saves, and private oracle material are not distributed.

Current signal

State	Area	Summary
✅ Working	Translation pipeline	ELF/PRX representation, analysis, code generation, native compilation, and substantial runtime/HLE infrastructure are public.
🟡 Private acceptance	HST route	A state-qualified private route has reached gameplay and completed matches; this is not public release or hardware proof.
🔴 Open	Audio	Rough/stuttering audio remains open in #67.
🔴 Open	Graphics	Transient menu corruption remains reproducible in #69; its root cause is not established. Portrait/profile images remain absent.
🔴 Open	Timing	Pacing has improved, but timing/coalescing acceptance remains open in #70.
🧭 Planned	Release target	Native 480x272 presentation, broader host support, and the full public fresh-machine workflow remain acceptance work.

Read the complete Current Status page before interpreting a build or run result.

Explore the manual

Recompiler	Runtime	Host presentation
Static Recompiler Loading, analysis, control flow, generated C, and fallback handling.	Runtime and HLE Guest state, memory, imports, scheduling, filesystem, and input.	Graphics and Display Framebuffer, GE, Vulkan, scaling, and visual evidence.
Media and timing	Research and evidence	Project governance
Audio and Media SAS, ATRAC, output, buffering, and open acceptance.	Hardware Research Physical PSP evidence, replication, and safe reporting.	Publication and Provenance Public/private boundaries, licensing, and audit posture.

Research companion

The PSP Recompilation & Binary Translation Research site is the visual research companion to this project manual.

Learn	Measure	Verify
Start Here Static Recompilation Architecture	Hardware Replication Hardware Findings Registry	Evidence Standard Nakagawa Case Study

Note

The current implementation reference for this review is 4eda0c4. Source, tests, the Makefile, current issues, and merged pull requests override older prose.

Suggested route: Getting Started → Build and Run → Architecture