"""Dump what the coefficient-copy (0xf0411cd4, fst.d f16) writes into the region queues
during the death-cam draw. If the payload is recognisable float coefficients (edge/plane
A,B,C in a sane range) we can reconstruct terrain triangles WITHOUT decoding micro-code.
If it's integer micro-code words, that confirms the hard path."""
import sys, time, struct, pickle
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          # fst.d f16, per session 6e: coefficient/command copy
writes = []
orig_w32 = emu860.Mem.w32
def w32(self, addr, val):
    if cpu.pc == COPY:
        writes.append((addr & 0xffffffff, val & 0xffffffff))
    return orig_w32(self, addr, val)
emu860.Mem.w32 = w32

t0 = time.time()
target = r.qi + 1
while time.time() - t0 < 90:
    if len(writes) >= 400:
        break
    h = r.hooks.get(cpu.pc)
    if h:
        if h(cpu) == 'done': break
        continue
    if not cpu.step(): break
emu860.Mem.w32 = orig_w32

print("captured %d word-writes at the coefficient copy" % len(writes))
# group into 8-byte doubles (fst.d = two 32-bit stores, addr and addr+4)
i = 0; n = 0
while i < len(writes) - 1 and n < 60:
    a0, w0 = writes[i]; a1, w1 = writes[i + 1]
    if a1 == a0 + 4:
        dv = struct.unpack('<d', struct.pack('<II', w0, w1))[0]
        f0 = struct.unpack('<f', struct.pack('<I', w0))[0]
        f1 = struct.unpack('<f', struct.pack('<I', w1))[0]
        note = ""
        if -1e8 < dv < 1e8 and (abs(dv) > 1e-9 or w0 == 0):
            note = "dbl=%.5g" % dv
        print("  @%08x: %08x %08x   %-16s  f=(%.4g, %.4g)" % (a0, w0, w1, note, f0, f1))
        i += 2; n += 1
    else:
        print("  @%08x: %08x (single)" % (a0, w0))
        i += 1; n += 1