#!/usr/bin/env python3
"""Convert Intel HEX to binary"""
import sys

if len(sys.argv) < 3:
    print("Usage: hex2bin.py <input.hex> <output.bin>")
    sys.exit(1)

with open(sys.argv[1], 'r') as f:
    lines = f.readlines()

data = bytearray()
for line in lines:
    line = line.strip()
    if not line or line[0] != ':':
        continue
    count = int(line[1:3], 16)
    rtype = int(line[7:9], 16)
    if rtype == 0:  # Data record
        for i in range(count):
            byte_val = int(line[9+i*2:11+i*2], 16)
            data.append(byte_val)
    elif rtype == 1:  # EOF
        break

with open(sys.argv[2], 'wb') as f:
    f.write(data)

print(f"Binary: {len(data)} bytes")