83 lines
2.8 KiB
C++
83 lines
2.8 KiB
C++
/****************************************************************************
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* *
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* Project64 - A Nintendo 64 emulator. *
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* http://www.pj64-emu.com/ *
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* Copyright (C) 2012 Project64. All rights reserved. *
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* *
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* License: *
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* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
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* *
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****************************************************************************/
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#include "stdafx.h"
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#include "FunctionMapClass.h"
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#include <Project64-core/N64System/SystemGlobals.h>
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#include <Project64-core/N64System/N64Class.h>
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#include <Windows.h>
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CFunctionMap::CFunctionMap() :
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m_JumpTable(NULL),
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m_FunctionTable(NULL)
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{
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}
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CFunctionMap::~CFunctionMap()
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{
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CleanBuffers();
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}
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bool CFunctionMap::AllocateMemory()
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{
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if (g_System->LookUpMode() == FuncFind_VirtualLookup && m_FunctionTable == NULL)
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{
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m_FunctionTable = (PCCompiledFunc_TABLE *)VirtualAlloc(NULL, 0xFFFFF * sizeof(CCompiledFunc *), MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
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if (m_FunctionTable == NULL)
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{
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WriteTrace(TraceRecompiler, TraceError, "failed to allocate function table");
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g_Notify->FatalError(MSG_MEM_ALLOC_ERROR);
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return false;
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}
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memset(m_FunctionTable, 0, 0xFFFFF * sizeof(CCompiledFunc *));
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}
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if (g_System->LookUpMode() == FuncFind_PhysicalLookup && m_JumpTable == NULL)
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{
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m_JumpTable = new PCCompiledFunc[g_MMU->RdramSize() >> 2];
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if (m_JumpTable == NULL)
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{
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WriteTrace(TraceRecompiler, TraceError, "failed to allocate jump table");
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g_Notify->FatalError(MSG_MEM_ALLOC_ERROR);
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return false;
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}
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memset(m_JumpTable, 0, (g_MMU->RdramSize() >> 2) * sizeof(PCCompiledFunc));
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}
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return true;
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}
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void CFunctionMap::CleanBuffers()
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{
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if (m_FunctionTable)
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{
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for (int i = 0, n = 0x100000; i < n; i++)
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{
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if (m_FunctionTable[i] != NULL)
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{
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delete m_FunctionTable[i];
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}
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}
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VirtualFree(m_FunctionTable, 0, MEM_RELEASE);
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m_FunctionTable = NULL;
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}
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if (m_JumpTable)
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{
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delete[] m_JumpTable;
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m_JumpTable = NULL;
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}
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}
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void CFunctionMap::Reset(bool bAllocate)
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{
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CleanBuffers();
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if (bAllocate && (g_System->LookUpMode() == FuncFind_VirtualLookup || g_System->LookUpMode() == FuncFind_PhysicalLookup))
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{
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AllocateMemory();
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}
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} |