diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/core/src/mem_map.cpp | 95 | ||||
-rw-r--r-- | src/core/src/mem_map_funcs.cpp | 199 |
2 files changed, 145 insertions, 149 deletions
diff --git a/src/core/src/mem_map.cpp b/src/core/src/mem_map.cpp index 975a0cf08..6477499d5 100644 --- a/src/core/src/mem_map.cpp +++ b/src/core/src/mem_map.cpp @@ -32,75 +32,72 @@ namespace Memory { - -u8* g_base = NULL; ///< The base pointer to the auto-mirrored arena. - -MemArena g_arena; ///< The MemArena class + +u8* g_base = NULL; ///< The base pointer to the auto-mirrored arena. -u8* g_bootrom = NULL; ///< Bootrom memory (super secret code/data @ 0x8000) pointer -u8* g_fcram = NULL; ///< Main memory (FCRAM) pointer -u8* g_vram = NULL; ///< Video memory (VRAM) pointer -u8* g_scratchpad = NULL; ///< [Hack] Seperate mem for stack space because I don't know where this goes +MemArena g_arena; ///< The MemArena class -u8* g_physical_bootrom = NULL; ///< Bootrom physical memory (super secret code/data @ 0x8000) -u8* g_uncached_bootrom = NULL; +u8* g_bootrom = NULL; ///< Bootrom physical memory +u8* g_fcram = NULL; ///< Main memory (FCRAM) pointer +u8* g_vram = NULL; ///< Video memory (VRAM) pointer +u8* g_scratchpad = NULL; ///< Scratchpad memory - Used for main thread stack -u8* g_physical_fcram = NULL; ///< Main physical memory (FCRAM) -u8* g_physical_vram = NULL; ///< Video physical memory (VRAM) -u8* g_physical_scratchpad = NULL; ///< Scratchpad memory used for main thread stack +u8* g_physical_bootrom = NULL; ///< Bootrom physical memory +u8* g_uncached_bootrom = NULL; +u8* g_physical_fcram = NULL; ///< Main physical memory (FCRAM) +u8* g_physical_vram = NULL; ///< Video physical memory (VRAM) +u8* g_physical_scratchpad = NULL; ///< Scratchpad memory used for main thread stack // We don't declare the IO region in here since its handled by other means. -static MemoryView g_views[] = -{ - {&g_scratchpad, &g_physical_scratchpad, 0x00000000, MEM_SCRATCHPAD_SIZE, 0 }, -// {&g_bootrom, &g_physical_bootrom, 0x00000000, MEM_BOOTROM_SIZE, 0}, -// {NULL, &g_uncached_bootrom, 0x00010000, MEM_BOOTROM_SIZE, MV_MIRROR_PREVIOUS}, -// {NULL, NULL, 0x17E00000, MEM_MPCORE_PRIV_SIZE, 0}, - {&g_vram, &g_physical_vram, MEM_VRAM_VADDR, MEM_VRAM_SIZE, MV_IS_PRIMARY_RAM}, -// {NULL, NULL, 0x1FF00000, MEM_DSP_SIZE, 0}, -// {NULL, NULL, 0x1FF80000, MEM_AXI_WRAM_SIZE, 0}, - - {&g_fcram, &g_physical_fcram, MEM_FCRAM_VADDR, MEM_FCRAM_SIZE, MV_IS_PRIMARY_RAM}, - +static MemoryView g_views[] = { + { &g_vram, &g_physical_vram, MEM_VRAM_VADDR, MEM_VRAM_SIZE, 0 }, + { &g_fcram, &g_physical_fcram, MEM_FCRAM_VADDR, MEM_FCRAM_SIZE, MV_IS_PRIMARY_RAM }, }; /*static MemoryView views[] = { - {&m_pScratchPad, &m_pPhysicalScratchPad, 0x00010000, SCRATCHPAD_SIZE, 0}, - {NULL, &m_pUncachedScratchPad, 0x40010000, SCRATCHPAD_SIZE, MV_MIRROR_PREVIOUS}, - {&m_pVRAM, &m_pPhysicalVRAM, 0x04000000, 0x00800000, 0}, - {NULL, &m_pUncachedVRAM, 0x44000000, 0x00800000, MV_MIRROR_PREVIOUS}, - {&m_pRAM, &m_pPhysicalRAM, 0x08000000, g_MemorySize, MV_IS_PRIMARY_RAM}, // only from 0x08800000 is it usable (last 24 megs) - {NULL, &m_pUncachedRAM, 0x48000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM}, - {NULL, &m_pKernelRAM, 0x88000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM}, - - // TODO: There are a few swizzled mirrors of VRAM, not sure about the best way to - // implement those. + {&m_pScratchPad, &m_pPhysicalScratchPad, 0x00010000, SCRATCHPAD_SIZE, 0}, + {NULL, &m_pUncachedScratchPad, 0x40010000, SCRATCHPAD_SIZE, MV_MIRROR_PREVIOUS}, + {&m_pVRAM, &m_pPhysicalVRAM, 0x04000000, 0x00800000, 0}, + {NULL, &m_pUncachedVRAM, 0x44000000, 0x00800000, MV_MIRROR_PREVIOUS}, + {&m_pRAM, &m_pPhysicalRAM, 0x08000000, g_MemorySize, MV_IS_PRIMARY_RAM}, // only from 0x08800000 is it usable (last 24 megs) + {NULL, &m_pUncachedRAM, 0x48000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM}, + {NULL, &m_pKernelRAM, 0x88000000, g_MemorySize, MV_MIRROR_PREVIOUS | MV_IS_PRIMARY_RAM}, + + // TODO: There are a few swizzled mirrors of VRAM, not sure about the best way to + // implement those. };*/ -static const int kNumMemViews = sizeof(g_views) / sizeof(MemoryView); ///< Number of mem views +static const int kNumMemViews = sizeof(g_views) / sizeof(MemoryView); ///< Number of mem views void Init() { - int flags = 0; + int flags = 0; - for (size_t i = 0; i < ARRAY_SIZE(g_views); i++) { - if (g_views[i].flags & MV_IS_PRIMARY_RAM) - g_views[i].size = MEM_FCRAM_SIZE; - } + for (size_t i = 0; i < ARRAY_SIZE(g_views); i++) { + if (g_views[i].flags & MV_IS_PRIMARY_RAM) + g_views[i].size = MEM_FCRAM_SIZE; + } - g_base = MemoryMap_Setup(g_views, kNumMemViews, flags, &g_arena); + g_base = MemoryMap_Setup(g_views, kNumMemViews, flags, &g_arena); - NOTICE_LOG(MEMMAP, "Memory system initialized. RAM at %p (mirror at 0 @ %p)", g_fcram, - g_physical_fcram); + g_scratchpad = new u8[MEM_SCRATCHPAD_SIZE]; + + NOTICE_LOG(MEMMAP, "Memory system initialized. RAM at %p (mirror at 0 @ %p)", g_fcram, + g_physical_fcram); } void Shutdown() { - u32 flags = 0; - MemoryMap_Shutdown(g_views, kNumMemViews, flags, &g_arena); - g_arena.ReleaseSpace(); - g_base = NULL; - NOTICE_LOG(MEMMAP, "Memory system shut down."); + u32 flags = 0; + MemoryMap_Shutdown(g_views, kNumMemViews, flags, &g_arena); + + g_arena.ReleaseSpace(); + delete[] g_scratchpad; + + g_base = NULL; + g_scratchpad = NULL; + + NOTICE_LOG(MEMMAP, "Memory system shut down."); } diff --git a/src/core/src/mem_map_funcs.cpp b/src/core/src/mem_map_funcs.cpp index c8436b2a4..0d22d9193 100644 --- a/src/core/src/mem_map_funcs.cpp +++ b/src/core/src/mem_map_funcs.cpp @@ -29,157 +29,156 @@ namespace Memory { template <typename T> -inline void ReadFromHardware(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. +inline void ReadFromHardware(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 + // Could just do a base-relative read, too.... TODO - if ((addr & 0x3E000000) == 0x08000000) { - var = *((const T*)&g_fcram[addr & MEM_FCRAM_MASK]); + if ((addr & 0x3E000000) == 0x08000000) { + var = *((const T*)&g_fcram[addr & MEM_FCRAM_MASK]); - // Scratchpad memory + // 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]); - }*/ - else { - _assert_msg_(MEMMAP, false, "unknown hardware read"); - // WARN_LOG(MEMMAP, "ReadFromHardware: Invalid addr %08x PC %08x LR %08x", addr, currentMIPS->pc, currentMIPS->r[MIPS_REG_RA]); - } + /*else if ((addr & 0x3F800000) == 0x04000000) { + var = *((const T*)&m_pVRAM[addr & VRAM_MASK]); + }*/ + else { + _assert_msg_(MEMMAP, false, "unknown hardware read"); + // WARN_LOG(MEMMAP, "ReadFromHardware: Invalid addr %08x PC %08x LR %08x", addr, currentMIPS->pc, currentMIPS->r[MIPS_REG_RA]); + } } template <typename T> inline void WriteToHardware(u32 addr, const T data) { - NOTICE_LOG(MEMMAP, "Test1 %08X", addr); - // ExeFS:/.code is loaded here: - 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; - NOTICE_LOG(MEMMAP, "Test2"); + NOTICE_LOG(MEMMAP, "Test1 %08X", addr); + // ExeFS:/.code is loaded here: + 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; + NOTICE_LOG(MEMMAP, "Test2"); // 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"); - } else { - _assert_msg_(MEMMAP, false, "unknown hardware write"); - } + // 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"); + } else { + _assert_msg_(MEMMAP, false, "unknown hardware 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; - } + 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); - } - //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; - } + // TODO(bunnei): Just a stub for now... ImplementMe! + if ((addr & 0x3E000000) == 0x08000000) { + 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; - ReadFromHardware<u8>(_var, addr); - return (u8)_var; + u8 _var = 0; + ReadFromHardware<u8>(_var, addr); + return (u8)_var; } u16 Read16(const u32 addr) { - u16_le _var = 0; - ReadFromHardware<u16_le>(_var, addr); - return (u16)_var; + u16_le _var = 0; + ReadFromHardware<u16_le>(_var, addr); + return (u16)_var; } u32 Read32(const u32 addr) { - u32_le _var = 0; - ReadFromHardware<u32_le>(_var, addr); - return _var; + u32_le _var = 0; + ReadFromHardware<u32_le>(_var, addr); + return _var; } u64 Read64(const u32 addr) { - u64_le _var = 0; - ReadFromHardware<u64_le>(_var, addr); - return _var; + u64_le _var = 0; + ReadFromHardware<u64_le>(_var, addr); + return _var; } u32 Read8_ZX(const u32 addr) { - return (u32)Read8(addr); + return (u32)Read8(addr); } u32 Read16_ZX(const u32 addr) { - return (u32)Read16(addr); + return (u32)Read16(addr); } void Write8(const u32 addr, const u8 data) { - WriteToHardware<u8>(addr, data); + WriteToHardware<u8>(addr, data); } void Write16(const u32 addr, const u16 data) { - WriteToHardware<u16_le>(addr, data); + WriteToHardware<u16_le>(addr, data); } void Write32(const u32 addr, const u32 data) { - WriteToHardware<u32_le>(addr, data); + WriteToHardware<u32_le>(addr, data); } void Write64(const u32 addr, const u64 data) { - WriteToHardware<u64_le>(addr, data); + WriteToHardware<u64_le>(addr, data); } } // namespace |