CydandClaude Opus 4.8
533c14b102
frame_geometry.py snapshots each SEND payload (deduped by content) and pulls fixed-point screen coords. Honest outcome: only 11 sparse coords, all in the object's x-range, no terrain -- the payloads store compiled edge/plane coefficients, not extractable vertex lists, so "grep coords and plot" is a dead end. A real from-scratch render needs the full plane-role assembly (slopes + constants -> lines -> triangles -> array), which stays unsolved. Documented in MICROCODE-DECODE-NOTES.md so the shortcut isn't retried. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
83 lines
3.6 KiB
Python
83 lines
3.6 KiB
Python
"""From-scratch full-frame geometry from the micro-code. Hook the coefficient-copy; each
|
|
time a SEND(addr,size) pair is written, read that payload block RIGHT THEN (before the
|
|
double-buffer is overwritten), dedup by content, and extract the fixed-point screen
|
|
coordinates it carries (words < 0x10000 whose value/256 lands in screen range). Plot all
|
|
of them = the frame's geometry reconstructed from the compiled stream, terrain + object."""
|
|
import sys, time, struct, pickle, hashlib
|
|
sys.path.insert(0, r'C:\VWE\TeslaRel410\emulator\firmware-decomp')
|
|
import emu860, dis860, emu_main
|
|
emu860.Mem.log = lambda self, *a, **k: None
|
|
S = r'C:\Users\cyd\AppData\Local\Temp\claude\c--VWE-TeslaRel410\4e848c76-6e89-4034-8047-d8d491cb32d8\scratchpad'
|
|
snap = pickle.load(open(S + r'\snapv2.pkl', 'rb'))
|
|
r = emu_main.MainRunner(r'C:\VWE\TeslaRel410\dpl3-revive\patha\cap7.raw.bin', fw='capfw7', max_cmds=6000)
|
|
cpu = r.cpu
|
|
cpu.mem.pages = {k: bytearray(v) for k, v in snap['pages'].items()}
|
|
cpu.ctrl.clear(); cpu.ctrl.update(snap['ctrl'])
|
|
cpu.r = list(snap['r']); cpu.f = list(snap['f']); cpu.cr = dict(snap['cr']); cpu.pc = snap['pc']
|
|
cpu._apipe = list(snap['apipe']); cpu._mpipe = list(snap['mpipe']); cpu._fp_pipes()
|
|
cpu._lpipe = list(snap['lpipe']); cpu._gpipe = list(snap['gpipe'])
|
|
cpu._kr, cpu._ki, cpu._t = snap['kr'], snap['ki'], snap['t']
|
|
cpu.lcc = snap['lcc']; r.qi = snap['qi']; r.heap = list(snap['heap'])
|
|
|
|
COPY = 0xf0411cd4
|
|
def rw(a):
|
|
try: return cpu.mem.r32(a & 0xffffffff)
|
|
except Exception: return 0
|
|
|
|
prims = {} # content-hash -> {'addr':, 'coords':[...], 'floats':[...]}
|
|
pend = [] # pending copy words to pair up
|
|
orig = emu860.Mem.w32
|
|
def read_payload(addr, size):
|
|
ws = [rw(addr + 4 * i) for i in range(min(size, 80))]
|
|
h = hashlib.md5(bytes(str(ws), 'ascii')).hexdigest()[:10]
|
|
if h in prims:
|
|
return
|
|
coords = []
|
|
for w in ws:
|
|
if 0 < w < 0x10000:
|
|
v = w / 256.0
|
|
if 12.0 <= v <= 600.0:
|
|
coords.append(round(v, 1))
|
|
prims[h] = {'addr': addr, 'coords': coords, 'nwords': len(ws)}
|
|
|
|
def w32(self, addr, val):
|
|
if cpu.pc == COPY:
|
|
pend.append(val & 0xffffffff)
|
|
if len(pend) >= 2:
|
|
a, op = pend[-2], pend[-1]
|
|
code = (op >> 28) & 0xf
|
|
if code in (0x1, 0x9) and 0x08000000 <= a < 0x08100000: # SEND/SENDE
|
|
read_payload(a, op & 0x7f)
|
|
return orig(self, addr, val)
|
|
emu860.Mem.w32 = w32
|
|
|
|
t0 = time.time()
|
|
while time.time() - t0 < 200:
|
|
if len(prims) >= 400: break
|
|
h = r.hooks.get(cpu.pc)
|
|
if h:
|
|
if h(cpu) == 'done': break
|
|
continue
|
|
if not cpu.step(): break
|
|
# stop once the draw's copy activity has clearly ended
|
|
if len(prims) and (time.time() - t0) > 12 and r.qi > snap['qi'] + 1 and cpu.pc != COPY and len(pend) > 4 and (len(pend) & 1) == 0:
|
|
pass
|
|
emu860.Mem.w32 = orig
|
|
|
|
allc = [c for p in prims.values() for c in p['coords']]
|
|
print("distinct primitive payloads captured: %d (ran to cmd %d)" % (len(prims), r.qi))
|
|
print("total fixed-point screen coords extracted: %d" % len(allc))
|
|
if allc:
|
|
print("coord range: [%.0f .. %.0f]" % (min(allc), max(allc)))
|
|
# save + a 1D histogram of coords to see spread
|
|
pickle.dump({'prims': prims}, open(S + r'\frame_geo.pkl', 'wb'))
|
|
import collections
|
|
hist = collections.Counter(int(c // 40) * 40 for c in allc)
|
|
print("\ncoord spread (bucketed by 40):")
|
|
for b in sorted(hist):
|
|
print(" %3d-%3d: %s" % (b, b + 39, '#' * min(60, hist[b])))
|
|
# per-primitive summary
|
|
print("\nfirst 12 primitives:")
|
|
for i, (h, p) in enumerate(list(prims.items())[:12]):
|
|
print(" %-10s @%#010x %2d coords: %s" % (h, p['addr'], len(p['coords']), p['coords'][:10]))
|