mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-12-11 15:44:15 +00:00
332 lines
7.2 KiB
C++
332 lines
7.2 KiB
C++
// Copyright (C) 2003 Dolphin Project / 2012 PPSSPP Project
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, version 2.0 or later versions.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official git repository and contact information can be found at
|
|
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
|
|
|
|
#include "Common.h"
|
|
#include "Atomic.h"
|
|
|
|
#include "MemMap.h"
|
|
#include "Config.h"
|
|
#include "Host.h"
|
|
|
|
#include "MIPS/MIPS.h"
|
|
|
|
// TODO: Fix this
|
|
#undef ENABLE_MEM_CHECK
|
|
|
|
namespace Memory
|
|
{
|
|
|
|
// =================================
|
|
// From Memmap.cpp
|
|
// ----------------
|
|
|
|
// Read and write shortcuts
|
|
|
|
// GetPointer must always return an address in the bottom 32 bits of address space, so that 64-bit
|
|
// programs don't have problems directly addressing any part of memory.
|
|
|
|
u8 *GetPointer(const u32 address)
|
|
{
|
|
if ((address & 0x0E000000) == 0x08000000)
|
|
{
|
|
return m_pRAM + (address & RAM_MASK);
|
|
}
|
|
else if ((address & 0x0F800000) == 0x04000000)
|
|
{
|
|
return m_pVRAM + (address & VRAM_MASK);
|
|
}
|
|
else if ((address & 0xBFFF0000) == 0x00010000)
|
|
{
|
|
return m_pScratchPad + (address & SCRATCHPAD_MASK);
|
|
}
|
|
else
|
|
{
|
|
ERROR_LOG(MEMMAP, "Unknown GetPointer %08x PC %08x LR %08x", address, currentMIPS->pc, currentMIPS->r[MIPS_REG_RA]);
|
|
if (!g_Config.bIgnoreBadMemAccess) {
|
|
Core_EnableStepping(true);
|
|
host->SetDebugMode(true);
|
|
}
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
inline void ReadFromHardware(T &var, const u32 address)
|
|
{
|
|
// TODO: Figure out the fastest order of tests for both read and write (they are probably different).
|
|
// TODO: Make sure this represents the mirrors in a correct way.
|
|
|
|
// Could just do a base-relative read, too.... TODO
|
|
|
|
if ((address & 0x0E000000) == 0x08000000)
|
|
{
|
|
var = *((const T*)&m_pRAM[address & RAM_MASK]);
|
|
}
|
|
else if ((address & 0x0F800000) == 0x04000000)
|
|
{
|
|
var = *((const T*)&m_pVRAM[address & VRAM_MASK]);
|
|
}
|
|
else if ((address & 0xBFFF0000) == 0x00010000)
|
|
{
|
|
// Scratchpad
|
|
var = *((const T*)&m_pScratchPad[address & SCRATCHPAD_MASK]);
|
|
}
|
|
else
|
|
{
|
|
if (g_Config.bJit) {
|
|
WARN_LOG(MEMMAP, "ReadFromHardware: Invalid address %08x", address);
|
|
} else {
|
|
WARN_LOG(MEMMAP, "ReadFromHardware: Invalid address %08x PC %08x LR %08x", address, currentMIPS->pc, currentMIPS->r[MIPS_REG_RA]);
|
|
}
|
|
if (!g_Config.bIgnoreBadMemAccess) {
|
|
Core_EnableStepping(true);
|
|
host->SetDebugMode(true);
|
|
}
|
|
var = 0;
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
inline void WriteToHardware(u32 address, const T data)
|
|
{
|
|
// Could just do a base-relative write, too.... TODO
|
|
|
|
if ((address & 0x0E000000) == 0x08000000)
|
|
{
|
|
*(T*)&m_pRAM[address & RAM_MASK] = data;
|
|
}
|
|
else if ((address & 0x0F800000) == 0x04000000)
|
|
{
|
|
*(T*)&m_pVRAM[address & VRAM_MASK] = data;
|
|
}
|
|
else if ((address & 0xBFFF0000) == 0x00010000)
|
|
{
|
|
*(T*)&m_pScratchPad[address & SCRATCHPAD_MASK] = data;
|
|
}
|
|
else
|
|
{
|
|
if (g_Config.bJit) {
|
|
WARN_LOG(MEMMAP, "WriteToHardware: Invalid address %08x", address);
|
|
} else {
|
|
WARN_LOG(MEMMAP, "WriteToHardware: Invalid address %08x PC %08x LR %08x", address, currentMIPS->pc, currentMIPS->r[MIPS_REG_RA]);
|
|
}
|
|
if (!g_Config.bIgnoreBadMemAccess) {
|
|
Core_EnableStepping(true);
|
|
host->SetDebugMode(true);
|
|
}
|
|
}
|
|
}
|
|
|
|
// =====================
|
|
|
|
bool IsValidAddress(const u32 address)
|
|
{
|
|
if ((address & 0x0E000000) == 0x08000000)
|
|
{
|
|
return true;
|
|
}
|
|
else if ((address & 0x0F800000) == 0x04000000)
|
|
{
|
|
return true;
|
|
}
|
|
else if ((address & 0xBFFF0000) == 0x00010000)
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
u32 Read_Opcode(u32 _Address)
|
|
{
|
|
if (_Address == 0x00000000)
|
|
{
|
|
// FIXME use assert?
|
|
PanicAlert("Program tried to read an opcode from [00000000]. It has crashed.");
|
|
return 0x00000000;
|
|
}
|
|
|
|
return Read_Instruction(_Address);
|
|
}
|
|
|
|
u8 Read_U8(const u32 _Address)
|
|
{
|
|
u8 _var = 0;
|
|
ReadFromHardware<u8>(_var, _Address);
|
|
#ifdef ENABLE_MEM_CHECK
|
|
TMemCheck *mc = PowerPC::memchecks.GetMemCheck(_Address);
|
|
if (mc)
|
|
{
|
|
mc->numHits++;
|
|
mc->Action(&PowerPC::debug_interface, _var, _Address, false, 1, PC);
|
|
}
|
|
#endif
|
|
return (u8)_var;
|
|
}
|
|
|
|
u16 Read_U16(const u32 _Address)
|
|
{
|
|
u16 _var = 0;
|
|
ReadFromHardware<u16>(_var, _Address);
|
|
#ifdef ENABLE_MEM_CHECK
|
|
TMemCheck *mc = PowerPC::memchecks.GetMemCheck(_Address);
|
|
if (mc)
|
|
{
|
|
mc->numHits++;
|
|
mc->Action(&PowerPC::debug_interface, _var, _Address, false, 2, PC);
|
|
}
|
|
#endif
|
|
return (u16)_var;
|
|
}
|
|
|
|
u32 Read_U32(const u32 _Address)
|
|
{
|
|
u32 _var = 0;
|
|
ReadFromHardware<u32>(_var, _Address);
|
|
#ifdef ENABLE_MEM_CHECK
|
|
TMemCheck *mc = PowerPC::memchecks.GetMemCheck(_Address);
|
|
if (mc)
|
|
{
|
|
mc->numHits++;
|
|
mc->Action(&PowerPC::debug_interface, _var, _Address, false, 4, PC);
|
|
}
|
|
#endif
|
|
return _var;
|
|
}
|
|
|
|
u64 Read_U64(const u32 _Address)
|
|
{
|
|
u64 _var = 0;
|
|
ReadFromHardware<u64>(_var, _Address);
|
|
#ifdef ENABLE_MEM_CHECK
|
|
TMemCheck *mc = PowerPC::memchecks.GetMemCheck(_Address);
|
|
if (mc)
|
|
{
|
|
mc->numHits++;
|
|
mc->Action(&PowerPC::debug_interface, (u32)_var, _Address, false, 8, PC);
|
|
}
|
|
#endif
|
|
return _var;
|
|
}
|
|
|
|
u32 Read_U8_ZX(const u32 _Address)
|
|
{
|
|
return (u32)Read_U8(_Address);
|
|
}
|
|
|
|
u32 Read_U16_ZX(const u32 _Address)
|
|
{
|
|
return (u32)Read_U16(_Address);
|
|
}
|
|
|
|
void Write_U8(const u8 _Data, const u32 _Address)
|
|
{
|
|
#ifdef ENABLE_MEM_CHECK
|
|
TMemCheck *mc = PowerPC::memchecks.GetMemCheck(_Address);
|
|
if (mc)
|
|
{
|
|
mc->numHits++;
|
|
mc->Action(&PowerPC::debug_interface, _Data,_Address,true,1,PC);
|
|
}
|
|
#endif
|
|
WriteToHardware<u8>(_Address, _Data);
|
|
}
|
|
|
|
|
|
void Write_U16(const u16 _Data, const u32 _Address)
|
|
{
|
|
#ifdef ENABLE_MEM_CHECK
|
|
TMemCheck *mc = PowerPC::memchecks.GetMemCheck(_Address);
|
|
if (mc)
|
|
{
|
|
mc->numHits++;
|
|
mc->Action(&PowerPC::debug_interface, _Data,_Address,true,2,PC);
|
|
}
|
|
#endif
|
|
|
|
WriteToHardware<u16>(_Address, _Data);
|
|
}
|
|
|
|
void Write_U32(const u32 _Data, const u32 _Address)
|
|
{
|
|
#ifdef ENABLE_MEM_CHECK
|
|
TMemCheck *mc = PowerPC::memchecks.GetMemCheck(_Address);
|
|
if (mc)
|
|
{
|
|
mc->numHits++;
|
|
mc->Action(&PowerPC::debug_interface, _Data,_Address,true,4,PC);
|
|
}
|
|
#endif
|
|
WriteToHardware<u32>(_Address, _Data);
|
|
}
|
|
|
|
void Write_U64(const u64 _Data, const u32 _Address)
|
|
{
|
|
#ifdef ENABLE_MEM_CHECK
|
|
TMemCheck *mc = PowerPC::memchecks.GetMemCheck(_Address);
|
|
if (mc)
|
|
{
|
|
mc->numHits++;
|
|
mc->Action(&PowerPC::debug_interface, (u32)_Data,_Address,true,8,PC);
|
|
}
|
|
#endif
|
|
|
|
WriteToHardware<u64>(_Address, _Data);
|
|
}
|
|
|
|
#ifdef SAFE_MEMORY
|
|
|
|
u8 ReadUnchecked_U8(const u32 _Address)
|
|
{
|
|
u8 _var = 0;
|
|
ReadFromHardware<u8>(_var, _Address);
|
|
return _var;
|
|
}
|
|
|
|
u16 ReadUnchecked_U16(const u32 _Address)
|
|
{
|
|
u16 _var = 0;
|
|
ReadFromHardware<u16>(_var, _Address);
|
|
return _var;
|
|
}
|
|
|
|
u32 ReadUnchecked_U32(const u32 _Address)
|
|
{
|
|
u32 _var = 0;
|
|
ReadFromHardware<u32>(_var, _Address);
|
|
return _var;
|
|
}
|
|
|
|
void WriteUnchecked_U8(const u8 _iValue, const u32 _Address)
|
|
{
|
|
WriteToHardware<u8>(_Address, _iValue);
|
|
}
|
|
|
|
void WriteUnchecked_U16(const u16 _iValue, const u32 _Address)
|
|
{
|
|
WriteToHardware<u16>(_Address, _iValue);
|
|
}
|
|
|
|
void WriteUnchecked_U32(const u32 _iValue, const u32 _Address)
|
|
{
|
|
WriteToHardware<u32>(_Address, _iValue);
|
|
}
|
|
|
|
#endif
|
|
|
|
} // namespace Memory
|