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https://github.com/thornAvery/kep-hack.git
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analyze_texts - find possible TX_FARs
hg-commit-id: 3b5f657bd072
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parent
e83d265166
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@ -387,16 +387,16 @@ def text_pretty_printer_at(start_address, label="SomeLabel"):
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commands = parse_text_script(start_address, None, None)
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needs_to_begin_with_0 = True #how should this be determined?
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wanted_command = None
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if needs_to_begin_with_0:
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wanted_command = None
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for command_id in commands:
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command = commands[command_id]
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if command["type"] == 0:
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wanted_command = command_id
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if wanted_command == None:
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raise "error: address did not start with a $0 text"
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#wanted_command = None
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#if needs_to_begin_with_0:
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# wanted_command = None
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# for command_id in commands:
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# command = commands[command_id]
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# if command["type"] == 0:
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# wanted_command = command_id
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#
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# if wanted_command == None:
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# raise "error: address did not start with a $0 text"
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#start with zero please
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byte_count = 0
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@ -405,6 +405,10 @@ def text_pretty_printer_at(start_address, label="SomeLabel"):
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for this_command in commands.keys():
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if not "lines" in commands[this_command].keys():
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command = commands[this_command]
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if not "type" in command.keys():
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output = "ERROR in command: " + str(command)
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continue #dunno what to do here?
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if command["type"] == 0x1:
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if first_line:
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output = "\n"
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@ -486,7 +490,7 @@ def text_pretty_printer_at(start_address, label="SomeLabel"):
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output += "\n"
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#output += "\n"
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output += "; " + hex(start_address + byte_count)
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output += "; " + hex(start_address + byte_count + 1)
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print output
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return (output, byte_count)
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@ -532,27 +536,76 @@ def find_undone_texts():
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for result in sorted_results:
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print str(result[1]) + " times: " + hex(result[0])
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def scan_rom_for_tx_fars():
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"""find TX_FARs
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search only addresses that are INCBINed
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keep only TX_FARs that are valid"""
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rom = extract_maps.rom
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analyze_incbins.load_asm()
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analyze_incbins.isolate_incbins()
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analyze_incbins.process_incbins()
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possible_tx_fars = []
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possible_tx_far_targets = []
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for incbin_line_number in analyze_incbins.processed_incbins.keys():
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incbin = analyze_incbins.processed_incbins[incbin_line_number]
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start_address = incbin["start"]
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end_address = incbin["end"]
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subrom = rom[start_address:end_address]
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for address in range(start_address, end_address):
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current_byte = ord(rom[address])
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if current_byte == 0x17:
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if ord(rom[address+4]) == 0x50:
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byte1 = ord(rom[address+1])
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byte2 = ord(rom[address+2])
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address2 = byte1 + (byte2 << 8)
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if address2 > 0x3fff:
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address2 = extract_maps.calculate_pointer(address2, ord(rom[address+3]))
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#print "possible TX_FAR at " + hex(address) + " to " + hex(address2)
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possible_tx_fars.append(address)
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possible_tx_far_targets.append([address2, address])
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pre_handled = []
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for address_bundle in possible_tx_far_targets:
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if address_bundle[0] in [0xa82f8, 0xa8315]:
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continue #bad
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if address_bundle[0] in pre_handled:
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continue #already did this
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print "-------"
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print "TX_FAR is at: " + hex(address_bundle[1])
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text_pretty_printer_at(address_bundle[0], "blah")
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print "-------"
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pre_handled.append(address_bundle[0])
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if __name__ == "__main__":
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extract_maps.load_rom()
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extract_maps.load_map_pointers()
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extract_maps.read_all_map_headers()
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text_output = analyze_texts()
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#text_output = analyze_texts()
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#print text_output
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missing_08s = find_missing_08s(text_output)
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#these aren't really "missing", just a certain type that was
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#known to be missed on a first pass.
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#missing_08s = find_missing_08s(text_output)
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print "\n\n---- stats ----\n\n"
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#print "\n\n---- stats ----\n\n"
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popular_text_commands = sorted(totals.iteritems(), key=itemgetter(1), reverse=True)
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#popular_text_commands = sorted(totals.iteritems(), key=itemgetter(1), reverse=True)
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#convert the first values (command byte) to hex
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for popular_item in popular_text_commands:
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print hex(popular_item[0]) + " was used " + str(popular_item[1]) + " times."
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#for popular_item in popular_text_commands:
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# print hex(popular_item[0]) + " was used " + str(popular_item[1]) + " times."
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#print "popular text commands: " + str(popular_text_commands)
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print "total text commands: " + str(total_text_commands)
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print "total text scripts: " + str(should_be_total)
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print "missing 08s: " + str(missing_08s)
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print "\n\n"
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#print "total text commands: " + str(total_text_commands)
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#print "total text scripts: " + str(should_be_total)
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#print "missing 08s: " + str(missing_08s)
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#print "\n\n"
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#text_pretty_printer_at(0x800b1)
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find_undone_texts()
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#find_undone_texts()
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scan_rom_for_tx_fars()
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