mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 02:11:36 -04:00
Matthew Stanley
e88e9a0233
Before: only sector 0 read succeeded; sector ≥1 reads aborted at 2 bytes
because mc_flag was loaded from mc_slots[].flag on every 0x81 select but
never saved back. The clear in MC_CMD lived only in the working static, so
every reselect re-loaded the stale 0x08 ("new card / changed battery") init
value, and the BIOS bailed every multi-sector op as "card was just inserted,
re-init."
After: BIOS shell memcard menu reads the full 15-sector directory area for
both slots. Real save filenames decode (e.g. "BISLPS-01234SAVE00") and per
card icons render in the bottom panes — the Phase 4 success criterion.
Also bundled this session:
- debug_server: B9D0..B9F0 added to always-on wtrace ranges; fn_dump_parse
default window scoped to 1M most-recent entries (filter scans against the
full 128M ring used to freeze the debug server thread for many seconds).
- ISSUES.md + diagnostic tools/*.py written during the audit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
45 lines
1.9 KiB
Python
45 lines
1.9 KiB
Python
"""Check chain gate state and B0 dispatcher activity."""
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import socket, json
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def call(d):
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s = socket.create_connection(('127.0.0.1', 4370)); s.settimeout(15.0)
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s.sendall((json.dumps(d) + '\n').encode())
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buf = b''
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while True:
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try: c = s.recv(65536)
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except socket.timeout: break
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if not c: break
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buf += c
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if buf.count(b'{') == buf.count(b'}') and buf.strip(): break
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s.close()
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return json.loads(buf.decode())
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def read(addr, n):
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r = call({'id': 1, 'cmd': 'read_ram', 'addr': f'0x{addr:08X}', 'len': n})
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return r.get('hex', '')
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print('Card chain state:')
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print(f' [0x74A8] (chain table base): {read(0x800074A8, 4)}')
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print(f' [0x74AC] (chain handler 0): {read(0x800074AC, 4)} (should be 0x000049BC = FUN_bfc144bc)')
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print(f' [0x74B0] (chain handler 1): {read(0x800074B0, 4)} (should be 0x00004A4C)')
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print(f' [0x74B4] (chain entry NULL): {read(0x800074B4, 4)}')
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print(f' [0x74B8] (pad poll gate): {read(0x800074B8, 4)} (set by FUN_bfc158a8 chain init)')
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print(f' [0x74BC] (chain coord gate): {read(0x800074BC, 4)} (set by FUN_bfc14770 chain enabler -> 1)')
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print(f' [0x74C4] (other card gate): {read(0x800074C4, 4)} (set by FUN_bfc15b9c open)')
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print(f' [0x74C8..0x74DC]: {read(0x800074C8, 24)}')
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print()
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print('Dispatch_check on the API entry points:')
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for pc, name in [
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(0x00005DA8, 'B0:0x4A InitCARD = FUN_bfc158a8'),
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(0x00004C70, 'B0:0x4B StartCARD = FUN_bfc14770'),
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(0x00004CF4, 'B0:0x4C StopCARD = FUN_bfc147F4'),
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(0x0000609C, 'B0:0x?? FUN_bfc15b9c'),
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(0x000049BC, 'FUN_bfc144bc (chain dispatcher tick)'),
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(0x00005000, 'FUN_bfc14b00 (chain coord)'),
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(0x00004B90, 'FUN_bfc14690 (chain installer)'),
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(0x000005E0, 'B0 dispatcher (RAM 0x5E0)'),
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(0x000005C4, 'A0 dispatcher (RAM 0x5C4)'),
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]:
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r = call({'id': 100, 'cmd': 'dispatch_check', 'addr': f'0x{pc:08X}'})
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print(f" 0x{pc:08X} {name}: in_recent_ring={r.get('found')}")
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