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cebix |
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/* |
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* mem.cpp - Emulator memory management |
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* |
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* SIDPlayer (C) Copyright 1996-2000 Christian Bauer |
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include "sys.h" |
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#include <string.h> |
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#ifndef __psx__ |
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#include <errno.h> |
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#endif |
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#include "mem.h" |
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// Memory area |
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uint8 ram[RAM_SIZE]; |
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/* |
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* Init memory management |
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*/ |
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void MemoryInit(void) |
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{ |
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// Clear memory contents |
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MemoryClear(); |
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} |
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/* |
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* Exit memory management |
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*/ |
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void MemoryExit(void) |
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{ |
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} |
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/* |
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* Clear memory contents |
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*/ |
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void MemoryClear(void) |
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{ |
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memset(ram, 0, RAM_SIZE - 0x2000); |
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memset(ram + 0xe000, 0x40, 0x2000); // Fill kernal ROM area with RTI |
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ram[1] = 7; // 6510 I/O port |
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ram[0x0314] = 0x31; // IRQ vector |
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ram[0x0315] = 0xea; |
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} |
