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- /*
- * CNROM Mapper - The peTI-NESulator Project
- * cnrom.c
- *
- * Created by Manoël Trapier.
- * Copyright (c) 2002-2019 986-Studio.
- *
- */
- #include "cnrom.h"
- uint8_t cnrom_load_bank;
- void cnrom_MapperWriteHook(register uint8_t Addr, register uint8_t 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 uint8_t Addr, register uint8_t 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);
- }
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