mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2026-02-14 02:15:58 -07:00
e149ad4f0a
SPDX standardizes how source code conveys its copyright and licensing information. See https://spdx.github.io/spdx-spec/1-rationale/ . SPDX tags are adopted in many large projects, including things like the Linux kernel.
116 lines
3.1 KiB
C++
116 lines
3.1 KiB
C++
// Copyright 2008 Dolphin Emulator Project
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#pragma once
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
|
|
#include "Common/CommonTypes.h"
|
|
#include "Common/MathUtil.h"
|
|
#include "Common/Swap.h"
|
|
#include "Core/PowerPC/MMU.h"
|
|
|
|
// Global declarations
|
|
class PointerWrap;
|
|
namespace MMIO
|
|
{
|
|
class Mapping;
|
|
}
|
|
|
|
namespace Memory
|
|
{
|
|
// Base is a pointer to the base of the memory map. Yes, some MMU tricks
|
|
// are used to set up a full GC or Wii memory map in process memory. on
|
|
// 32-bit, you have to mask your offsets with 0x3FFFFFFF. This means that
|
|
// some things are mirrored too many times, but eh... it works.
|
|
|
|
// In 64-bit, this might point to "high memory" (above the 32-bit limit),
|
|
// so be sure to load it into a 64-bit register.
|
|
extern u8* physical_base;
|
|
extern u8* logical_base;
|
|
|
|
// These are guaranteed to point to "low memory" addresses (sub-32-bit).
|
|
extern u8* m_pRAM;
|
|
extern u8* m_pEXRAM;
|
|
extern u8* m_pL1Cache;
|
|
extern u8* m_pFakeVMEM;
|
|
|
|
u32 GetRamSizeReal();
|
|
u32 GetRamSize();
|
|
u32 GetRamMask();
|
|
u32 GetFakeVMemSize();
|
|
u32 GetFakeVMemMask();
|
|
u32 GetL1CacheSize();
|
|
u32 GetL1CacheMask();
|
|
u32 GetIOSize();
|
|
u32 GetExRamSizeReal();
|
|
u32 GetExRamSize();
|
|
u32 GetExRamMask();
|
|
|
|
constexpr u32 MEM1_BASE_ADDR = 0x80000000U;
|
|
constexpr u32 MEM2_BASE_ADDR = 0x90000000U;
|
|
constexpr u32 MEM1_SIZE_RETAIL = 0x01800000U;
|
|
constexpr u32 MEM1_SIZE_GDEV = 0x04000000U;
|
|
constexpr u32 MEM2_SIZE_RETAIL = 0x04000000U;
|
|
constexpr u32 MEM2_SIZE_NDEV = 0x08000000U;
|
|
|
|
// MMIO mapping object.
|
|
extern std::unique_ptr<MMIO::Mapping> mmio_mapping;
|
|
|
|
// Init and Shutdown
|
|
bool IsInitialized();
|
|
void Init();
|
|
void Shutdown();
|
|
bool InitFastmemArena();
|
|
void ShutdownFastmemArena();
|
|
void DoState(PointerWrap& p);
|
|
|
|
void UpdateLogicalMemory(const PowerPC::BatTable& dbat_table);
|
|
|
|
void Clear();
|
|
|
|
// Routines to access physically addressed memory, designed for use by
|
|
// emulated hardware outside the CPU. Use "Device_" prefix.
|
|
std::string GetString(u32 em_address, size_t size = 0);
|
|
u8* GetPointer(u32 address);
|
|
void CopyFromEmu(void* data, u32 address, size_t size);
|
|
void CopyToEmu(u32 address, const void* data, size_t size);
|
|
void Memset(u32 address, u8 value, size_t size);
|
|
u8 Read_U8(u32 address);
|
|
u16 Read_U16(u32 address);
|
|
u32 Read_U32(u32 address);
|
|
u64 Read_U64(u32 address);
|
|
void Write_U8(u8 var, u32 address);
|
|
void Write_U16(u16 var, u32 address);
|
|
void Write_U32(u32 var, u32 address);
|
|
void Write_U64(u64 var, u32 address);
|
|
void Write_U32_Swap(u32 var, u32 address);
|
|
void Write_U64_Swap(u64 var, u32 address);
|
|
|
|
// Templated functions for byteswapped copies.
|
|
template <typename T>
|
|
void CopyFromEmuSwapped(T* data, u32 address, size_t size)
|
|
{
|
|
const T* src = reinterpret_cast<T*>(GetPointer(address));
|
|
|
|
if (src == nullptr)
|
|
return;
|
|
|
|
for (size_t i = 0; i < size / sizeof(T); i++)
|
|
data[i] = Common::FromBigEndian(src[i]);
|
|
}
|
|
|
|
template <typename T>
|
|
void CopyToEmuSwapped(u32 address, const T* data, size_t size)
|
|
{
|
|
T* dest = reinterpret_cast<T*>(GetPointer(address));
|
|
|
|
if (dest == nullptr)
|
|
return;
|
|
|
|
for (size_t i = 0; i < size / sizeof(T); i++)
|
|
dest[i] = Common::FromBigEndian(data[i]);
|
|
}
|
|
} // namespace Memory
|