68 lines
2.1 KiB
Python
Executable File
68 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# synacor.py - An implementation of the Synacor Challenge
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# Copyright © 2017 RunasSudo
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from libsynacor import *
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import argparse
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import struct
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parser = argparse.ArgumentParser()
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parser.add_argument('file', help='.asm file to read')
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parser.add_argument('output', help='.bin file to write')
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args = parser.parse_args()
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# First pass
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labels = {}
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SYN_MEM = [0] * 32768
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SYN_PTR = 0
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with open(args.file, 'r') as source:
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try:
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while True:
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instructions, inst_labels = assemble_next_instruction(source)
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for label in inst_labels:
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if label.startswith('$'):
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labels[label[1:]] = SYN_PTR
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if instructions is None:
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break
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for instruction in instructions:
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code = instruction.assemble(None)
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SYN_MEM[SYN_PTR:SYN_PTR+len(code)] = code
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SYN_PTR += len(code)
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except Exception as ex:
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raise Exception('Error at line {}'.format(line_no)) from ex
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# Second pass
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SYN_MEM = [0] * 32768
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SYN_PTR = 0
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with open(args.file, 'r') as source:
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try:
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while True:
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instructions, inst_labels = assemble_next_instruction(source)
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if instructions is None:
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break
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for instruction in instructions:
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code = instruction.assemble(labels)
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SYN_MEM[SYN_PTR:SYN_PTR+len(code)] = code
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SYN_PTR += len(code)
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except Exception as ex:
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raise Exception('Error at line {}'.format(line_no)) from ex
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with open(args.output, 'wb') as f:
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f.write(struct.pack('<32768H', *SYN_MEM))
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