12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 |
- /*
- * 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);
- }
|