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>
68 lines
2.2 KiB
Python
68 lines
2.2 KiB
Python
"""Check shell card mode and chain progression details."""
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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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depth = 0; in_str = False; esc = False
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for b in buf:
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if esc: esc = False; continue
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if b == 0x5C: esc = True; continue
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if b == 0x22: in_str = not in_str; continue
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if in_str: continue
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if b == 0x7B: depth += 1
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elif b == 0x7D: depth -= 1
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if depth == 0 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=4):
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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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def le_word(hexstr):
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if len(hexstr) < 8: return None
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return int.from_bytes(bytes.fromhex(hexstr[:8]), 'little')
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print(f"frame: {call({'id':0,'cmd':'ping'}).get('frame')}")
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print()
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print('=== shell card mode flags ===')
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for addr, label in [
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(0x80066bc0, '_DAT_80066bc0 (card mode: 6=DELETE, 7=LOAD_DIR)'),
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(0x80066948, '[0x66948] shell state (0x32 = MEMCARD)'),
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(0x80066940, '[0x66940] shell substate'),
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(0x80066944, '[0x66944] shell counter'),
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(0x800666f8, '[0x666f8] one-shot init done flag'),
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]:
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print(f' {label}: {read(addr, 4)}')
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print()
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print('=== chain progression detail ===')
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# These addresses come from FUN_bfc14b00 + chain steps logic
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for addr, label in [
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(0x80007550, '[0x7550] chain mode'),
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(0x80007554, '[0x7554] chain step idx'),
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(0x80007264, '[0x7264] slot toggle'),
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(0x800072F0, '[0x72F0] (1 byte/VBLANK?)'),
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(0x80007568, 'gates (4 bytes)'),
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(0x80007560, 'accumulators slot 0..3 (16 bytes)'),
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(0x80007570, '[0x7570..0x7575] (per-slot status?)'),
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]:
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n = 16 if 'accumulators' in label else 4
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print(f' {label}: {read(addr, n)}')
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print()
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print('=== sector being requested ===')
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# After chain step, the sector # to read is probably stored somewhere.
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# Common locations: per-slot state struct
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for addr, label in [
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(0x80007510, '[0x7510..0x7530] per-slot R state'),
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]:
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print(f' {label}: {read(addr, 32)}')
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