#!/usr/bin/env python3
"""Recalculate published small-tile arithmetic; no EDA/cloud/silicon validation."""
import json
from pathlib import Path
d=json.loads(Path("tile-comparison.json").read_text(encoding="utf-8"))
assert d["common_period_ns"]==50
for c in d["cases"]:
    t=[cycles*period for cycles,period in zip(c["cycles"],c["sta_period_ns"],strict=True)]
    for i in range(1,len(t)):
        print(f"case {c['id']}, variant {i}: common-clock change {(c['cycles'][i]/c['cycles'][0]-1)*100:+.6f}%; STA-limit change {(t[i]/t[0]-1)*100:+.6f}%")
        if "energy_nJ" in c:
            e=c["energy_nJ"]
            print(f"  modeled energy at 50 ns: {e[0]:.6f} -> {e[i]:.6f} nJ ({(e[i]/e[0]-1)*100:+.6f}%)")
assert d["cases"][0]["cycles"]==[572,520,531]
assert d["cases"][0]["energy_nJ"][2]>d["cases"][0]["energy_nJ"][0]
print("Published arithmetic checked. This does not reproduce the EDA or energy model.")