libsidplayfp
1.1.0
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sidplayfp
c64
Banks
SystemRAMBank.h
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/*
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* This file is part of libsidplayfp, a SID player engine.
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*
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* Copyright 2012-2013 Leandro Nini <drfiemost@users.sourceforge.net>
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* Copyright 2010 Antti Lankila
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef SYSTEMRAMBANK_H
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#define SYSTEMRAMBANK_H
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#include <string.h>
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#include <stdint.h>
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#include "Bank.h"
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class
SystemRAMBank
:
public
Bank
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{
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friend
class
MMU
;
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private
:
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uint8_t ram[0x10000];
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public
:
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void
reset
()
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{
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memset(ram, 0, 0x10000);
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for
(
int
i = 0x07c0; i < 0x10000; i += 128)
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{
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memset(ram+i, 0xff, 64);
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}
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}
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uint8_t
peek
(uint_least16_t address)
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{
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return
ram[address];
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}
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void
poke
(uint_least16_t address, uint8_t value)
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{
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ram[address] = value;
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}
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};
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#endif
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