51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
/******************************************************************************/
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/* Mednafen Sega Saturn Emulation Module */
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/******************************************************************************/
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/* rom.cpp - ROM cart emulation
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** Copyright (C) 2016-2017 Mednafen Team
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**
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** This program is free software; you can redistribute it and/or
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** modify it under the terms of the GNU General Public License
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** as published by the Free Software Foundation; either version 2
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** of the License, or (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software Foundation, Inc.,
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** 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "common.h"
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#include "rom.h"
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namespace MDFN_IEN_SS
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{
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static uint16 ROM[0x100000];
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static MDFN_HOT void ROM_Read(uint32 A, uint16* DB)
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{
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// TODO: Check mirroring.
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//printf("ROM: %08x\n", A);
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*DB = *(uint16*)((uint8*)ROM + (A & 0x1FFFFE));
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}
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void CART_ROM_Init(CartInfo* c, Stream* str)
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{
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str->read(ROM, 0x200000);
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for(unsigned i = 0; i < 0x100000; i++)
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{
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ROM[i] = MDFN_de16msb<true>(&ROM[i]);
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}
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SS_SetPhysMemMap (0x02000000, 0x03FFFFFF, ROM, 0x200000, false);
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c->CS01_SetRW8W16(0x02000000, 0x03FFFFFF, ROM_Read);
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}
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}
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