94 lines
2.8 KiB
Python
Executable File
94 lines
2.8 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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parser = argparse.ArgumentParser()
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parser.add_argument('file', help='.bin file containing the initial memory dump')
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args = parser.parse_args()
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with open(args.file, 'rb') as data:
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SYN_MEM = memory_from_file(data)
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def escape_char(char):
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return char.encode('unicode_escape').decode('utf-8').replace('"', '\\"')
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MODE_OUT = False
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MODE_DAT = False #False, 1 (data), 2 (text)
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SYN_PTR = 0
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while SYN_PTR < len(SYN_MEM):
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word = SYN_MEM[SYN_PTR]
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if MODE_OUT and word != 19:
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print('"')
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MODE_OUT = False
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if MODE_DAT and 0 <= word <= 21:
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if MODE_DAT == 1:
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print()
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if MODE_DAT == 2:
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print('"')
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MODE_DAT = False
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if word not in instructions_by_opcode:
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# Data
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if 32 <= word <= 126:
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# looks like letters - unfortunately "\n" looks like MULT
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if MODE_DAT == 2:
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print(escape_char(chr(word)), end='')
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else:
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if MODE_DAT == 1:
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print()
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print('{:04x}: data "{}'.format(SYN_PTR, escape_char(chr(word))), end='')
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MODE_DAT = 2
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if word == 0x0a:
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print('"')
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MODE_DAT = False # break on newlines
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else:
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if MODE_DAT == 1:
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print(' {:04x}'.format(word), end='')
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else:
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if MODE_DAT == 2:
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print('"')
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print('{:04x}: data {:04x}'.format(SYN_PTR, word), end='')
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MODE_DAT = 1
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SYN_PTR += 1
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else:
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# Instruction
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instruction, SYN_PTR = Instruction.next_instruction(SYN_MEM, SYN_PTR)
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# Special cases
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if isinstance(instruction, InstructionOut):
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if isinstance(instruction.args[0], OpLiteral):
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if MODE_OUT:
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print(escape_char(chr(instruction.args[0].get(None))), end='')
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else:
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print('{:04x}: out "{}'.format(SYN_PTR, escape_char(chr(instruction.args[0].get(None)))), end='')
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MODE_OUT = True
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if instruction.args[0].get(None) == 0x0a:
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print('"')
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MODE_OUT = False # break on newlines
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else:
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if MODE_OUT:
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print('"')
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MODE_OUT = False
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print('{:04x}: {}'.format(SYN_PTR, instruction.describe()))
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else:
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print('{:04x}: {}'.format(SYN_PTR, instruction.describe()))
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