mirror of https://github.com/pret/pokecrystal.git
82 lines
2.2 KiB
Python
82 lines
2.2 KiB
Python
# coding: utf-8
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# RGBDS BSS section and constant parsing.
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import os
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path = os.path.dirname(os.path.abspath(__file__))
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def read_bss_sections(bss):
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sections = []
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section = {}
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address = None
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if type(bss) is not list: bss = bss.split('\n')
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for line in bss:
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line = line.lstrip()
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if 'SECTION' in line:
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if section: sections.append(section) # last section
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address = eval(line[line.find('[')+1:line.find(']')].replace('$','0x'))
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section = {
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'name': line.split('"')[1],
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#'type': line.split(',')[1].split('[')[0].strip(),
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'start': address,
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'labels': [],
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}
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elif ':' in line:
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# rgbds allows labels without :, but prefer convention
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label = line[:line.find(':')]
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if ';' not in label:
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section['labels'] += [{
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'label': label,
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'address': address,
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'length': 0,
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}]
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elif line[:3] == 'ds ':
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length = eval(line[3:line.find(';')].replace('$','0x'))
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address += length
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# adjacent labels use the same space
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for label in section['labels'][::-1]:
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if label['length'] == 0:
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label['length'] = length
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else:
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break
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elif 'EQU' in line:
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# some space is defined using constants
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name, value = line.split('EQU')
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name, value = name.strip(), value.strip().replace('$','0x').replace('%','0b')
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globals()[name] = eval(value)
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sections.append(section)
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return sections
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wram_sections = read_bss_sections(open(os.path.join(path, '../wram.asm'), 'r').readlines())
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def make_wram_labels():
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wram_labels = {}
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for section in wram_sections:
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for label in section['labels']:
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if label['address'] not in wram_labels.keys():
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wram_labels[label['address']] = []
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wram_labels[label['address']] += [label['label']]
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return wram_labels
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wram_labels = make_wram_labels()
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def constants_to_dict(constants):
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return dict((eval(constant[constant.find('EQU')+3:constant.find(';')].replace('$','0x')), constant[:constant.find('EQU')].strip()) for constant in constants)
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def scrape_constants(text):
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if type(text) is not list:
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text = text.split('\n')
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return constants_to_dict([line for line in text if 'EQU' in line[:line.find(';')]])
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hram_constants = scrape_constants(open(os.path.join(path, '../hram.asm'),'r').readlines())
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gbhw_constants = scrape_constants(open(os.path.join(path, '../gbhw.asm'),'r').readlines())
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