mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 02:11:36 -04:00
Matthew Stanley
685687f36f
Recovery + restructure after rm -rf destroyed duckstation/build/ earlier this session. Adopts the nesrecomp pattern (see F:/Projects/nesrecomp): pristine upstream as submodule, our changes as a patch file that gets auto-applied by a setup script. Submodule: - duckstation/ now pins stenzek/duckstation@ffb33c281 (release-20260328 era) - .gitmodules records the pin; .gitignore stops ignoring the submodule path but still ignores build/ and dep/prebuilt/ (the submodule's own .gitignore also handles these) Patch + setup: - tools/duckstation/psxrecomp_oracle.patch (1187 lines, 7 files) captures our TCP debug-server on port 4371 plus the unfinished pc_break family of commands (with the VirtualMemoryAddress compile fix) - tools/duckstation/setup.sh clones submodule, fetches + verifies + extracts prebuilt Windows deps, rewrites stale absolute paths baked into the prebuilt CMake metadata, applies the oracle patch. Idempotent. - tools/duckstation/build.sh configures CMake (VS 17 2022) + runs MSBuild, then provisions bin/ with portable marker, BIOS copy, and settings.ini post-fixes - tools/duckstation/README.md documents the layout, the regeneration flow, and the known headless-boot configuration issue TCP documentation (salvaged from v3): - TCP_COMMANDS.md: full command table with native (4370) / duckstation (4371) / both columns, reflecting actual v4 implementation including wtrace_* and pc_break/pc_hit_last families - tools/debug_client.py: unified CLI from v3 (ports 4370/4371 match v4) - DEBUG.md: merged v3's END-TO-END COMPLETION RULE, Stale Hypothesis Rule, TOOLING RULE, and TOOL LIFECYCLE RULE sections into v4's existing loop Phase 4 diagnostic artefacts from this session: - generated/relocation_proofs/vblank_registrar/ — corrected VBlank-stall diagnosis. Prior handoff claimed the shell VBlank handler was never installed; live TCP inspection of both runtime and DuckStation oracle proved handler IS installed at 0x800DFEE0. Real gap is one level up in the kernel IRQ chain at *(0xA000E014). - tools/duck_query*.py, duck_search.py, disasm_ram.py, scan_*.py — focused probes used to establish the above; reusable against either server CLAUDE.md §2 and new §15 document the submodule-based oracle setup and the "never edit submodule, regenerate patch instead" rule. Known issues (tracked in tools/duckstation/README.md): - Fresh settings.ini doesn't complete BIOS boot under -nogui; one-time launch with GUI is required to warm up the settings before headless mode works Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
80 lines
2.5 KiB
Python
80 lines
2.5 KiB
Python
"""Dump runtime A0/B0/C0 tables from DuckStation and search for VSync/registrar/init in each."""
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import socket, json, time
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HOST='127.0.0.1'; PORT=4371
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def send(cmd, timeout=3.0):
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s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.settimeout(timeout)
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s.connect((HOST,PORT))
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s.sendall((json.dumps(cmd)+'\n').encode())
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buf=b''
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deadline = time.time()+timeout
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while time.time()<deadline:
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try: chunk=s.recv(65536)
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except socket.timeout: break
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if not chunk: break
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buf+=chunk
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if b'\n' in buf: break
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s.close()
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line = buf.split(b'\n',1)[0].decode()
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if not line: return None
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try: return json.loads(line)
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except: return line
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def read_ram(addr, length):
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# Chunked
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out = b''
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off = 0
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while off < length:
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n = min(4096, length-off)
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r = send({"cmd":"read_ram","addr":f"0x{addr+off:08X}","len":n})
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if not r or not r.get('ok'): return None
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out += bytes.fromhex(r['hex'])
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off += n
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return out
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TARGETS = {
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0x8005A5BC: 'handler',
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0x8005A540: 'registrar',
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0x8005A160: 'init_1FC42160',
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0x8005A5FC: 'SetVSync/CRCNT',
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0x8005A380: 'chain-install',
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0x8005A424: 'cleanup',
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0x80059C80: 'VSync(1FC41C80)',
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0x80059FC0: 'InitRCnt(1FC41FC0)',
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0x80059DA4: 'VSync-spin(1FC41DA4)',
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0x8005A600: '0xBFC42600',
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0x8005A640: '0xBFC42640',
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0x8005A70C: '0xBFC4270C',
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0x8005A090: 'jal-target(1FC42090)',
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0x8005A910: 'jal-target(1FC42910)',
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0x8005A980: 'jal-target(1FC42980)',
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0x8005AC00: 'jal-target(1FC42C00)',
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}
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def table_dump(name, base, length):
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d = read_ram(base, length)
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if not d: print(f'{name}: read failed'); return
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print(f'\n=== {name} @ 0x{base|0x80000000:08X} ({length} bytes) ===')
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for i in range(0, len(d), 4):
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if i+4 > len(d): break
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w = int.from_bytes(d[i:i+4],'little')
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annot = TARGETS.get(w, '')
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if not annot and w != 0 and (w & 0xFFFFFFF0) in {t & 0xFFFFFFF0 for t in TARGETS}:
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for t,n in TARGETS.items():
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if (w & 0xFFFFFFF0) == (t & 0xFFFFFFF0):
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annot = f'{n}+{w-t:+d}'
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break
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print(f' +0x{i:03X}: 0x{w:08X}' + (f' <-- {annot}' if annot else ''))
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send({"cmd":"pause"})
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time.sleep(0.3)
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# A0 table = {ptr=0x00008648, size=0x2C0 = 704 bytes = 176 entries}
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table_dump('A0 TABLE', 0x00008648, 0x2C0)
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# B0 table = {ptr=0x00006EE0, size=0x320 = 800 bytes = 200 entries}
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table_dump('B0 TABLE', 0x00006EE0, 0x320)
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send({"cmd":"continue"})
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