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#!/usr/bin/env python3
from sys import argv, stderr
def warn(s):
print("WARNING:", s.rstrip(), file=stderr)
for i, line in enumerate(open(argv[1])):
content = line.split(";", 1)[0].strip()
bankaddr_name = content.split(" ", 1)
if len(bankaddr_name) != 2:
continue
name = bankaddr_name[1].strip()
bank_addr = bankaddr_name[0].split(":")
if len(bank_addr) != 2:
warn("Can't shim line %d: %s" % (i+1, line))
continue
bank = int(bank_addr[0], 16)
addr = int(bank_addr[1], 16)
if 0x0000 <= addr < 0x4000 and bank == 0:
section = "ROM0"
bank = None
elif 0x4000 <= addr < 0x8000 and 1 <= bank < 128:
section = "ROMX"
elif 0x8000 <= addr < 0xA000 and 0 <= bank < 2:
section = "VRAM"
elif 0xA000 <= addr < 0xC000 and 0 <= bank < 16:
section = "SRAM"
elif 0xC000 <= addr < 0xD000 and bank == 0:
section = "WRAM0"
bank = None
elif 0xD000 <= addr < 0xE000 and 0 <= bank < 16:
section = "WRAMX"
elif 0xFE00 <= addr < 0xFEA0 and bank == 0:
section = "OAM"
bank = None
elif 0xFF80 <= addr < 0xFFFF and bank == 0:
section = "HRAM"
bank = None
else:
warn("Invalid bank/address on line %d: %s" % (i+1, line))
continue
bankdec = ", BANK[$%x]" % bank if bank is not None else ""
print('SECTION "Shim %s", %s[$%x]%s' % (name, section, addr, bankdec))
print("%s::" % name)
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