def main():
print("dasm: Simple dcpu assembler\n")
l = lark.Lark(grammar.grammar, start="start")
parser = argparse.ArgumentParser(description='dcpu assembler')
parser.add_argument("-i",
help="Assembly input file",
action="store",
metavar="<input file>",
type=str,
required=True,
dest="input_filename")
parser.add_argument(
"-o",
help="Binary output file basename (without file extension)",
metavar="<output file base name>",
action="store",
type=str,
required=False,
dest="output_filebase")
args = parser.parse_args()
try:
fn = args.input_filename
with open(fn) as f:
lines = f.readlines()
except:
print(f"ERROR: Cannot open file {fn}")
return 2
contents = "".join(lines)
t = l.parse(contents)
# print(t.pretty())
# print(t)
n = dcpuTransformer().transform(t)
program = Program(n.children)
(path, name) = os.path.split(fn) # remove path
if args.output_filebase == None:
outfn_noext = os.path.splitext(name)[0] # remove extension
else:
outfn_noext = args.output_filebase
program.write_as_bin(outfn_noext + ".bin")
program.write_as_memfile(outfn_noext + ".mem")
program.write_as_cfile(outfn_noext + ".c")
program.write_as_listing(outfn_noext + ".list", lines)
program.write_symbols(outfn_noext + ".symbols")
program.write_as_simdata(outfn_noext + ".sim", lines)
size = program.end_address - program.start_address + 1
print(f"File '{name}' assembled\nOutput size: {size} words")
