/* * CNROM Mapper - The peTI-NESulator Project * cnrom.c * * Created by Manoel TRAPIER. * Copyright (c) 2003-2018 986-Studio. All rights reserved. * * $LastChangedDate$ * $Author$ * $HeadURL$ * $Revision$ * */ #include "cnrom.h" unsigned char cnrom_load_bank; void cnrom_MapperWriteHook(register byte Addr, register byte Value); int cnrom_InitMapper(NesCart * cart) { int i; set_prom_bank_16k(0x8000, 0); set_prom_bank_16k(0xC000, GETLAST16KBANK(cart)); /* Set the last one */ cnrom_load_bank = 0; /* Register the write hook */ for (i = 0x80; i < 0x100; i++) { set_page_wr_hook(i, cnrom_MapperWriteHook); set_page_writeable(i, true); } return 0; } void cnrom_MapperWriteHook(register byte Addr, register byte Value) { set_prom_bank_16k(0x8000,Value); cnrom_load_bank = Value; } void cnrom_MapperDump(FILE *fp) { fprintf(fp,"cnrom: bank:%d\n",cnrom_load_bank); }