ref: aecce03834844f6c876d903a781443d65dbc11cb
parent: 5b95c5aad7d840a09727d3d56626ba624cddbbf3
author: yenatch <[email protected]>
date: Tue May 14 14:11:19 EDT 2013
wram.py: bss and constant parsing
--- /dev/null
+++ b/extras/wram.py
@@ -1,0 +1,60 @@
+# coding: utf-8
+
+# RGBDS BSS section and constant parsing.
+
+def read_bss_sections(bss):
+ sections = []
+ section = {}+ address = None
+ if type(bss) is not list: bss = bss.split('\n')+ for line in bss:
+ if 'SECTION' in line:
+ if section: sections.append(section) # last section
+
+ address = int(line.split('[')[1].split(']')[0].replace('$',''), 16)+ section = {+ 'name': line.split('"')[1],+ #'type': line.split(',')[1].split('[')[0].strip(),+ 'start': address,
+ 'labels': [],
+ }
+ elif ':' in line:
+ # the only labels that don't use :s so far are enders,
+ # which we typically don't want to end up in the output
+ label = line.lstrip().split(':')[0]+ if ';' not in label:
+ section['labels'] += [{'label': label, 'address': address, 'length': 0}]+ elif line.lstrip()[:3] == 'ds ':
+ length = eval(line.lstrip()[3:].split(';')[0].replace('$','0x'))+ address += length
+ if section['labels']:
+ section['labels'][-1]['length'] += length
+ sections.append(section)
+ return sections
+
+wram_sections = read_bss_sections(open('../wram.asm', 'r').readlines())+
+
+def make_wram_labels():
+ wram_labels = {}+ for section in wram_sections:
+ for label in section['labels']:
+ if label['address'] not in wram_labels.keys():
+ wram_labels[label['address']] = []
+ wram_labels[label['address']] += [label['label']]
+ return wram_labels
+
+wram_labels = make_wram_labels()
+
+
+def constants_to_dict(constants):
+ return dict((eval(constant.split(';')[0].split('EQU')[1].replace('$','0x')), constant.split('EQU')[0].strip()) for constant in constants)+
+def scrape_constants(text):
+ if type(text) is not list:
+ text = text.split('\n')+ return constants_to_dict([line for line in text if 'EQU' in line and ';' not in line.split('EQU')[0]])+
+hram_constants = scrape_constants(open('../hram.asm','r').readlines())+gbhw_constants = scrape_constants(open('../gbhw.asm','r').readlines())+