Drew T
038e7de532
- LZSS: defeated gcc 2.7.2 -O2 cross-jump-merge of the twin state-save tails with a
zero-byte __asm__ __volatile__("" ::: "memory") barrier (find_cross_jump bails on
ASM_INPUT; ground-truthed vs gcc-2.7.2.3 jump.c by a web-research subagent).
LzssDecodeSector now 122 instructions (correct structure); ~3 regalloc/scheduling
swaps remain -> C kept under #ifdef NON_MATCHING, default build = stub = BYTE-IDENTICAL
- surgical rodata carve (lean LZSS path, no libgs needed): splat carves ONLY
jtbl_80072A38 ([0x63238,.rodata,800] bounded by [0x6324C,data,6324C]); ld_interleave
wired into `make extract` as the .data->.rodata->.data sandwich (TAIL_DATA=6324C.data.o)
- libgs: 31/32 used objects byte-verified IDENTICAL to real PsyQ libgs 4.0 (0 conflicts,
69 externals); GS_001 deferred (psyq-obj-parser .bss-common scattering); 6-block
resegmentation wiring pending. psyq_identify.py now skips data-only objects (GLOBAL.o)
- cookbook: §3a (web-research compiler internals — escalation tier above the permuter)
+ §5a (the cross-jump barrier idiom) — both reusable
- build BYTE-IDENTICAL (143dbb89f34491258bbc27810d0a12ec8b43a8dd) throughout
BFM-decomp
A matching decompilation of Brave Fencer Musashi (PlayStation, SLUS-00726, USA 1998) — the first public decompilation effort for this game.
What "matching" means
The goal is C source code that, compiled with the original-era toolchain (PsyQ 4.x / GCC 2.7.2-family + ASPSX via maspsx), produces a byte-for-byte identical SLUS_007.26 and, eventually, byte-identical overlay binaries. SHA1 checksums are the ground truth; "functionally equivalent" does not count.
No ROM content
This repository contains no game assets, no disassembly output, and no ROM-derived data — only source code, build configuration, symbol names/addresses, hashes, and documentation. To build or contribute you must provide your own dump of the game disc (4-track BIN/CUE, redump layout). See .gitignore for the firewall.
Project status
Early foundation. Current phase and progress live in phase-ends/ (newest PhaseEnd_*.md = current state). Project methodology, rules, and the full roadmap are in PROJECT_CONTEXT.md. Environment setup is in docs/SETUP.md.
This project is developed primarily by Claude Code driving Ghidra through an MCP server; see CLAUDE.md.
License
Private repository for now. AGPL-3.0 is planned at public release, modeled on sotn-decomp. tools/brave-CUE/ is CUE's BRAVE extractor (GPL, source included) and retains its own license.