mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-25 18:05:12 -04:00
Matthew Stanley
53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
"""Output the complete list of dispatch-miss addresses, BIOS-virtual,
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suitable for feeding into Ghidra create_function and into seeds."""
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import re, json
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from pathlib import Path
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ROOT = Path(__file__).parent.parent
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GEN = ROOT / 'generated'
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full_c = (GEN / 'SCPH1001_full.c').read_text()
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dispatch_c = (GEN / 'SCPH1001_dispatch.c').read_text()
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def norm(addr):
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phys = addr & 0x1FFFFFFF
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if 0x1FC10000 <= phys <= 0x1FC17FFF:
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phys = phys - 0x1FC10000 + 0x500
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if 0x30000 <= phys <= 0x5AFFF:
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phys = phys - 0x30000 + 0x1FC18000
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return phys
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table_set = set(int(e, 16) for e in
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re.findall(r'\{\s*0x([0-9A-Fa-f]+)u?\s*,\s*func_[0-9A-Fa-f]+', dispatch_c))
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def collect(pattern):
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out = set()
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for m in re.finditer(pattern, full_c):
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out.add(norm(int(m.group(1), 16)))
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return out
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direct = collect(r'psx_dispatch\(cpu,\s*0x([0-9A-Fa-f]+)u?\);')
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tails = collect(r'cpu->pc = 0x([0-9A-Fa-f]+)u;\s*return;')
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all_missing = sorted((direct | tails) - table_set)
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# Convert phys to KSEG1 virt for ROM addresses, KSEG0 for RAM kernel
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out = []
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for phys in all_missing:
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if 0x1FC00000 <= phys <= 0x1FC7FFFF:
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virt = phys | 0xA0000000 # KSEG1 (uncached) — what BIOS uses
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# but seeds use 0xBFC...
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virt = (phys & 0x1FFFFFFF) | 0xBFC00000 if phys >= 0x1FC00000 else virt
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elif phys < 0x800000:
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virt = phys | 0x80000000 # kernel RAM
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else:
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virt = phys
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out.append((phys, virt))
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print(f"total missing: {len(out)}")
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print("BIOS-virt list (suitable for Ghidra create_function):")
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for phys, virt in out:
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print(f" 0x{virt:08X} (phys 0x{phys:08X})")
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# also write json for later use
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data = [{"addr": f"0x{v:08X}", "phys": f"0x{p:08X}"} for p, v in out]
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(ROOT / 'tools' / '_missing_funcs.json').write_text(json.dumps(data, indent=2))
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print(f"\nwrote tools/_missing_funcs.json")
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