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#!/usr/bin/env python3
import sys, os, re
# Compare the output of a Lattice `bstool` dump with ecpunpack and note discrepancies
if len(sys.argv) < 3:
print("Usage: compare_bits.py lattice_dump.txt ecpunpack.out")
sys.exit(2)
ecpup_re = re.compile(r'\((\d+), (\d+)\)')
lat_re = re.compile(r'^[A-Za-z0-9_/]+ \((\d+), (\d+)\)$')
ecpup_bits = []
lat_bits = []
with open(sys.argv[1], 'r') as latf:
for line in latf:
m = lat_re.match(line)
if m:
lat_bits.append((int(m.group(1)), int(m.group(2))))
print("Read {} bits from {}".format(len(lat_bits), sys.argv[1]))
with open(sys.argv[2], 'r') as upf:
for line in upf:
m = ecpup_re.match(line)
if m:
ecpup_bits.append((int(m.group(1)), int(m.group(2))))
print("Read {} bits from {}".format(len(ecpup_bits), sys.argv[2]))
ok = True
for b in ecpup_bits:
if b not in lat_bits:
print("In ecpunpack but not Lattice: ({}, {})".format(b[0], b[1]))
ok = False
for b in lat_bits:
if b not in ecpup_bits:
print("In Lattice but not ecpunpack: ({}, {})".format(b[0], b[1]))
ok = False
if ok:
print("ecpunpack and Lattice match ({} bits compared)".format(len(ecpup_bits)))
else:
sys.exit(1)
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