forked from eden-emu/eden
got rid of 'src' folders in each sub-project
This commit is contained in:
bunnei
parent
03c245345e
commit
63e46abdb8
148 changed files with 0 additions and 0 deletions
198
src/core/mem_map_funcs.cpp
Normal file
198
src/core/mem_map_funcs.cpp
Normal file
|
|
@ -0,0 +1,198 @@
|
|||
// Copyright 2014 Citra Emulator Project
|
||||
// Licensed under GPLv2
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#include "common.h"
|
||||
|
||||
#include "mem_map.h"
|
||||
#include "hw/hw.h"
|
||||
|
||||
namespace Memory {
|
||||
|
||||
template <typename T>
|
||||
inline void _Read(T &var, const u32 addr) {
|
||||
// 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
|
||||
|
||||
// Hardware I/O register reads
|
||||
// 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space
|
||||
if ((addr & 0xFF000000) == 0x10000000 || (addr & 0xFF000000) == 0x1E000000) {
|
||||
HW::Read<T>(var, addr);
|
||||
|
||||
// FCRAM virtual address reads
|
||||
} else if ((addr & 0x3E000000) == 0x08000000) {
|
||||
var = *((const T*)&g_fcram[addr & MEM_FCRAM_MASK]);
|
||||
|
||||
// Scratchpad memory
|
||||
} else if (addr > MEM_SCRATCHPAD_VADDR && addr <= (MEM_SCRATCHPAD_VADDR + MEM_SCRATCHPAD_SIZE)) {
|
||||
var = *((const T*)&g_scratchpad[addr & MEM_SCRATCHPAD_MASK]);
|
||||
|
||||
/*else if ((addr & 0x3F800000) == 0x04000000) {
|
||||
var = *((const T*)&m_pVRAM[addr & VRAM_MASK]);
|
||||
}*/
|
||||
|
||||
// HACK(bunnei): There is no layer yet to translate virtual addresses to physical addresses.
|
||||
// Until we progress far enough along, we'll accept all physical address reads here. I think
|
||||
// that this is typically a corner-case from usermode software unless they are trying to do
|
||||
// bare-metal things (e.g. early 3DS homebrew writes directly to the FB @ 0x20184E60, etc.
|
||||
} else if (((addr & 0xF0000000) == MEM_FCRAM_PADDR) && (addr < (MEM_FCRAM_PADDR_END))) {
|
||||
var = *((const T*)&g_fcram[addr & MEM_FCRAM_MASK]);
|
||||
|
||||
} else {
|
||||
_assert_msg_(MEMMAP, false, "unknown memory read");
|
||||
}
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
inline void _Write(u32 addr, const T data) {
|
||||
|
||||
// Hardware I/O register writes
|
||||
// 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space
|
||||
if ((addr & 0xFF000000) == 0x10000000 || (addr & 0xFF000000) == 0x1E000000) {
|
||||
HW::Write<const T>(addr, data);
|
||||
|
||||
// ExeFS:/.code is loaded here:
|
||||
} else if ((addr & 0xFFF00000) == 0x00100000) {
|
||||
// TODO(ShizZy): This is dumb... handle correctly. From 3DBrew:
|
||||
// http://3dbrew.org/wiki/Memory_layout#ARM11_User-land_memory_regions
|
||||
// The ExeFS:/.code is loaded here, executables must be loaded to the 0x00100000 region when
|
||||
// the exheader "special memory" flag is clear. The 0x03F00000-byte size restriction only
|
||||
// applies when this flag is clear. Executables are usually loaded to 0x14000000 when the
|
||||
// exheader "special memory" flag is set, however this address can be arbitrary.
|
||||
*(T*)&g_fcram[addr & MEM_FCRAM_MASK] = data;
|
||||
|
||||
// Scratchpad memory
|
||||
} else if (addr > MEM_SCRATCHPAD_VADDR && addr <= (MEM_SCRATCHPAD_VADDR + MEM_SCRATCHPAD_SIZE)) {
|
||||
*(T*)&g_scratchpad[addr & MEM_SCRATCHPAD_MASK] = data;
|
||||
|
||||
// Heap mapped by ControlMemory:
|
||||
} else if ((addr & 0x3E000000) == 0x08000000) {
|
||||
// TODO(ShizZy): Writes to this virtual address should be put in physical memory at FCRAM + GSP
|
||||
// heap size... the following is writing to FCRAM + 0, which is actually supposed to be the
|
||||
// application's GSP heap
|
||||
*(T*)&g_fcram[addr & MEM_FCRAM_MASK] = data;
|
||||
|
||||
} else if ((addr & 0xFF000000) == 0x14000000) {
|
||||
_assert_msg_(MEMMAP, false, "umimplemented write to GSP heap");
|
||||
} else if ((addr & 0xFFF00000) == 0x1EC00000) {
|
||||
_assert_msg_(MEMMAP, false, "umimplemented write to IO registers");
|
||||
} else if ((addr & 0xFF000000) == 0x1F000000) {
|
||||
_assert_msg_(MEMMAP, false, "umimplemented write to VRAM");
|
||||
} else if ((addr & 0xFFF00000) == 0x1FF00000) {
|
||||
_assert_msg_(MEMMAP, false, "umimplemented write to DSP memory");
|
||||
} else if ((addr & 0xFFFF0000) == 0x1FF80000) {
|
||||
_assert_msg_(MEMMAP, false, "umimplemented write to Configuration Memory");
|
||||
} else if ((addr & 0xFFFFF000) == 0x1FF81000) {
|
||||
_assert_msg_(MEMMAP, false, "umimplemented write to shared page");
|
||||
|
||||
// HACK(bunnei): There is no layer yet to translate virtual addresses to physical addresses.
|
||||
// Until we progress far enough along, we'll accept all physical address writes here. I think
|
||||
// that this is typically a corner-case from usermode software unless they are trying to do
|
||||
// bare-metal things (e.g. early 3DS homebrew writes directly to the FB @ 0x20184E60, etc.
|
||||
} else if (((addr & 0xF0000000) == MEM_FCRAM_PADDR) && (addr < (MEM_FCRAM_PADDR_END))) {
|
||||
*(T*)&g_fcram[addr & MEM_FCRAM_MASK] = data;
|
||||
|
||||
// Error out...
|
||||
} else {
|
||||
_assert_msg_(MEMMAP, false, "unknown memory write");
|
||||
}
|
||||
}
|
||||
|
||||
bool IsValidAddress(const u32 addr) {
|
||||
if ((addr & 0x3E000000) == 0x08000000) {
|
||||
return true;
|
||||
} else if ((addr & 0x3F800000) == 0x04000000) {
|
||||
return true;
|
||||
} else if ((addr & 0xBFFF0000) == 0x00010000) {
|
||||
return true;
|
||||
} else if ((addr & 0x3F000000) >= 0x08000000 && (addr & 0x3F000000) < 0x08000000 + MEM_FCRAM_MASK) {
|
||||
return true;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
u8 *GetPointer(const u32 addr) {
|
||||
// TODO(bunnei): Just a stub for now... ImplementMe!
|
||||
if ((addr & 0x3E000000) == 0x08000000) {
|
||||
return g_fcram + (addr & MEM_FCRAM_MASK);
|
||||
|
||||
// HACK(bunnei): There is no layer yet to translate virtual addresses to physical addresses.
|
||||
// Until we progress far enough along, we'll accept all physical address reads here. I think
|
||||
// that this is typically a corner-case from usermode software unless they are trying to do
|
||||
// bare-metal things (e.g. early 3DS homebrew writes directly to the FB @ 0x20184E60, etc.
|
||||
} else if (((addr & 0xF0000000) == MEM_FCRAM_PADDR) && (addr < (MEM_FCRAM_PADDR_END))) {
|
||||
return g_fcram + (addr & MEM_FCRAM_MASK);
|
||||
|
||||
//else if ((addr & 0x3F800000) == 0x04000000) {
|
||||
// return g_vram + (addr & MEM_VRAM_MASK);
|
||||
//}
|
||||
//else if ((addr & 0x3F000000) >= 0x08000000 && (addr & 0x3F000000) < 0x08000000 + g_MemorySize) {
|
||||
// return m_pRAM + (addr & g_MemoryMask);
|
||||
//}
|
||||
} else {
|
||||
//ERROR_LOG(MEMMAP, "Unknown GetPointer %08x PC %08x LR %08x", addr, currentMIPS->pc, currentMIPS->r[MIPS_REG_RA]);
|
||||
ERROR_LOG(MEMMAP, "Unknown GetPointer %08x", addr);
|
||||
static bool reported = false;
|
||||
//if (!reported) {
|
||||
// Reporting::ReportMessage("Unknown GetPointer %08x PC %08x LR %08x", addr, currentMIPS->pc, currentMIPS->r[MIPS_REG_RA]);
|
||||
// reported = true;
|
||||
//}
|
||||
//if (!g_Config.bIgnoreBadMemAccess) {
|
||||
// Core_EnableStepping(true);
|
||||
// host->SetDebugMode(true);
|
||||
//}
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
u8 Read8(const u32 addr) {
|
||||
u8 _var = 0;
|
||||
_Read<u8>(_var, addr);
|
||||
return (u8)_var;
|
||||
}
|
||||
|
||||
u16 Read16(const u32 addr) {
|
||||
u16_le _var = 0;
|
||||
_Read<u16_le>(_var, addr);
|
||||
return (u16)_var;
|
||||
}
|
||||
|
||||
u32 Read32(const u32 addr) {
|
||||
u32_le _var = 0;
|
||||
_Read<u32_le>(_var, addr);
|
||||
return _var;
|
||||
}
|
||||
|
||||
u64 Read64(const u32 addr) {
|
||||
u64_le _var = 0;
|
||||
_Read<u64_le>(_var, addr);
|
||||
return _var;
|
||||
}
|
||||
|
||||
u32 Read8_ZX(const u32 addr) {
|
||||
return (u32)Read8(addr);
|
||||
}
|
||||
|
||||
u32 Read16_ZX(const u32 addr) {
|
||||
return (u32)Read16(addr);
|
||||
}
|
||||
|
||||
void Write8(const u32 addr, const u8 data) {
|
||||
_Write<u8>(addr, data);
|
||||
}
|
||||
|
||||
void Write16(const u32 addr, const u16 data) {
|
||||
_Write<u16_le>(addr, data);
|
||||
}
|
||||
|
||||
void Write32(const u32 addr, const u32 data) {
|
||||
_Write<u32_le>(addr, data);
|
||||
}
|
||||
|
||||
void Write64(const u32 addr, const u64 data) {
|
||||
_Write<u64_le>(addr, data);
|
||||
}
|
||||
|
||||
} // namespace
|
||||
Loading…
Add table
Add a link
Reference in a new issue