forked from Ports/goldeneye-pc-port
James Dansereau
73ea03734d
- D48 finding in PCPortResearch.md §F: d43_convert.py does not emit bytes (layout+remap validation only); Plan B = Python emit pass -> data/pcmodels-<region>/ RZ sidecars served via port-layer hw_address/rom_size table patch (no C converter); Plan A kept as fallback with corrected staging guard (D_N64+D_PC<=avail) - Moved all 23 d43_*.py investigation scripts from gitignored build-pc/ to tracked tools_pc/ (spec is now versioned); d43_cover.py path ref updated; converter re-run from new location: ALL CLEAN - HANDOFF.md rewritten as two-session prompt: Session A = independent review of Plan B (8 claims, each with falsification criterion -> finding D49), Session B = execute (emit pass + round-trip validator, romdata plumbing, one-line hook, pixel-assert soak); verified-facts converter spec preserved - AGENTS.md phase status updated to D48 re-plan
87 lines
3.4 KiB
Python
87 lines
3.4 KiB
Python
# D43: for every seg-5 VTX/MOVEMEM/MTX/DL reference in every GDL, check whether
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# the offset falls inside a known vertex/coll array or elsewhere.
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import csv, struct, zlib, os, re
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from collections import Counter
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ROM = r"data/ge007.ntsc-final.z64"
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rom = open(ROM, "rb").read()
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rows = list(csv.reader(open(r"scripts/filelist.u.csv")))
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RSZ={1:0x10,2:0x1C,4:0x14,8:0x10,9:0x24,10:0x1C,18:0x08,21:0x14,23:0x02,24:0x20}
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hdrfiles = set()
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for root, dirs, files in os.walk("assets"):
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for fn in files:
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if fn.lower().endswith("modelfileheader.inc.c"): hdrfiles.add(os.path.join(root, fn))
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nsnt = {}
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for f in sorted(hdrfiles):
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for line in open(f):
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m = re.search(r"MODELFILEHEADER\((.*)\)\s*;?\s*$", line)
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if not m: continue
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a = [x.strip() for x in m.group(1).split(",")]
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if len(a) < 9: continue
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try: nsnt[a[0]] = (int(a[4], 0), int(a[8], 0))
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except ValueError: pass
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def be32(b, o): return struct.unpack_from(">I", b, o)[0] & 0xFFFFFF
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def be16(b, o): return struct.unpack_from(">H", b, o)[0]
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def be32raw(b, o): return struct.unpack_from(">I", b, o)[0]
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where = Counter(); examples = []
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nfiles=0
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for r in rows:
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if len(r) < 3 or not r[2]: continue
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base = r[2].rsplit("/",1)[-1]
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if base.endswith(".bin"): base = base[:-4]
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if not (base[0] in "CGP" and base.endswith("Z") and "_stan" not in base): continue
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try: addr,size = int(r[0]),int(r[1])
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except ValueError: continue
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key=None
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for cand in (base, base[1:], base[:-1], base[1:-1]):
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if cand in nsnt: key=cand; break
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if not key: continue
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NS,NT = nsnt[key]
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try: out = zlib.decompress(rom[addr:addr+size][2:], -15)
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except Exception: continue
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D = len(out); R0 = 4*NS + 12*NT; nfiles+=1
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stack=[R0]; seen=set(); gdls=[]; arrays=[]
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while stack:
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o=stack.pop()
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if o in seen or o>=D: break
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seen.add(o)
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op=struct.unpack_from(">H",out,o)[0]&0xff
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data=be32(out,o+4); ch=be32(out,o+0x14)
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if op==4:
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p=be32(out,data); s=be32(out,data+4)
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if p: gdls.append(p)
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if s: gdls.append(s)
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v=be32(out,data+0xC); nv=be16(out,data+0x10)
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if v: arrays.append((v, v+16*nv, "vtx(op4)"))
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elif op==24:
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p=be32(out,data); s=be32(out,data+4)
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if p: gdls.append(p)
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if s: gdls.append(s)
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v=be32(out,data+8); nv=be16(out,data+0xC)
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cv=be32(out,data+0x10); nc=be16(out,data+0xE)
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if v: arrays.append((v, v+16*nv, "vtx(op24)"))
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if cv: arrays.append((cv, cv+16*nc, "coll(op24)"))
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for q in (ch, be32(out,o+0xC)):
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if q: stack.append(q)
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for g in set(gdls):
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i=g; n=0
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while i+8 <= D and n < 100000:
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w0=be32raw(out,i); w1=be32raw(out,i+4)
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c=w0>>24
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if c in (1,3,4,6,7) and ((w1>>24)&0xff)==5:
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off = w1 & 0xFFFFFF
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hit=None
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for a,b,k in arrays:
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if a <= off < b: hit=k; break
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where[(c,hit)] += 1
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if hit is None and len(examples) < 8:
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examples.append((base, c, hex(off)))
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if c==0xB8: break
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i+=8; n+=1
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print("files:",nfiles)
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print("(opcode, region) for seg-5 refs:")
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for (c,hit),cnt in sorted(where.items(), key=lambda x:(x[0][0],str(x[0][1]))):
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print(" c=%02X %-10s x%d" % (c, str(hit), cnt))
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print("non-array examples:", examples)
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