2012-01-05 03:13:13 +00:00
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#author: Bryan Bishop <kanzure@gmail.com>
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#date: 2012-01-03
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#utilities for working with text pointers
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import extract_maps #rom, assert_rom, load_rom, calculate_pointer, load_map_pointers, read_all_map_headers, map_headers
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from pretty_map_headers import map_name_cleaner
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#import analyze_incbins #asm, offset_to_pointer, find_incbin_to_replace_for, split_incbin_line_into_three, generate_diff_insert, load_asm, isolate_incbins, process_incbins
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2012-01-18 07:46:27 +00:00
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spacing = " "
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2012-01-05 03:13:13 +00:00
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def test_first_text_pointer_bytes(range=20): #30 for viridian city, 34 for cerulean city, 36 for celadon, 48 for fuchsia city, 50 for safron
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"""
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does the first text pointer byte always point to (end address of text pointer list) + 1?
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range determines how far is acceptable.
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r=15 means 30 text pointers
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"""
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for map_id in extract_maps.map_headers:
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map = extract_maps.map_headers[map_id]
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bank = int(map["bank"],16)
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text_list_pointer = int(map["texts_pointer"], 16)
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bad_names = ["FREEZE", "COPY: Cinnibar Mart", "COPY OF: Underground Tunnel Entrance (Route 6)", "COPY OF: Trashed House", "COPY OF: Underground Path Entrance (Route 7)"]
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if map["name"] in bad_names: continue
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#extract the bytes making up the first text pointer
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pointer_byte1 = ord(extract_maps.rom[text_list_pointer])
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pointer_byte2 = ord(extract_maps.rom[text_list_pointer+1])
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#swap the bytes
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temp = pointer_byte1
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pointer_byte1 = pointer_byte2
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pointer_byte2 = temp
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del temp
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#combine these into a single pointer
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partial_pointer = (pointer_byte2 + (pointer_byte1 << 8))
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#get the full pointer
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first_text_pointer = extract_maps.calculate_pointer(partial_pointer, bank)
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#if (first_text_pointer <= (text_list_pointer+range)):
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print "map " + map["name"] + " (" + str(map["id"]) + ")"
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print spacing + "text_pointer (list) = " + hex(text_list_pointer)
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print spacing + "first_text_pointer (first text) = " + hex(first_text_pointer)
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print spacing + "difference = " + str(first_text_pointer - text_list_pointer)
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#return False
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return True
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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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print test_first_text_pointer_bytes()
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