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# Scan for all .bin dumps in the given files and generate the .bin
# dump files from baserom.gbc.
import os
import re
import sys
# Scan the input filepath for INCBINs of the following format:
# INCBIN "foo/bar/{start}_{end}.bin"
# Example:
# INCBIN "bin/10000_13fff.bin"
# Then, create that .bin dump by reading from baserom.gbc.
def scan_and_dump(filepath):
with open(filepath, 'r') as f:
file_contents = f.read()
with open('baserom.gbc', 'rb') as rom:
for match in re.findall(r'INCBIN\s+"(.+)/(.+)_(.+).bin"', file_contents):
bin_dump_folder, start_addr, end_addr = match
# Construct output filepath.
output_filepath = os.path.join(bin_dump_folder, '%s_%s.bin' % (start_addr, end_addr))
# Convert addresses to integers.
start_addr = int(start_addr, 16)
end_addr = int(end_addr, 16)
# Read the contents from baserom.gbc.
rom.seek(start_addr)
bin_contents = rom.read(end_addr - start_addr + 1)
# Write the .bin contents.
if not os.path.exists(bin_dump_folder):
os.makedirs(bin_dump_folder)
with open(output_filepath, 'w+b') as bin_file:
bin_file.write(bin_contents)
if __name__ == '__main__':
if len(sys.argv) != 2:
print 'Must provide filepath as argument!'
print 'Example: python generate_bin_dumps.py main.asm'
sys.exit(1)
scan_and_dump(sys.argv[1])
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