From a36f9492cca6ae44eb6ca33d29900f78b5b372bf Mon Sep 17 00:00:00 2001 From: bunnei Date: Mon, 31 Mar 2014 21:05:51 -0400 Subject: added support for reading/writing to stack mem --- src/core/src/mem_map.cpp | 34 ++++++++++++++++++++-------------- src/core/src/mem_map.h | 12 ++++++++++-- src/core/src/mem_map_funcs.cpp | 11 ++++++++++- 3 files changed, 40 insertions(+), 17 deletions(-) (limited to 'src') diff --git a/src/core/src/mem_map.cpp b/src/core/src/mem_map.cpp index 6d57b550a..975a0cf08 100644 --- a/src/core/src/mem_map.cpp +++ b/src/core/src/mem_map.cpp @@ -37,26 +37,32 @@ u8* g_base = NULL; ///< The base pointer to the auto-mirrored arena. MemArena g_arena; ///< The MemArena class -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_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 -u8* g_physical_bootrom = NULL; ///< Bootrom physical memory (super secret code/data @ 0x8000) -u8* g_uncached_bootrom = NULL; +u8* g_physical_bootrom = NULL; ///< Bootrom physical memory (super secret code/data @ 0x8000) +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 -u8* g_physical_fcram = NULL; ///< Main physical memory (FCRAM) -u8* g_physical_vram = NULL; ///< Video physical memory (VRAM) // We don't declare the IO region in here since its handled by other means. static MemoryView g_views[] = { - {&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, 0x18000000, MEM_VRAM_SIZE, 0}, -// //{NULL, NULL, 0x1FF00000, MEM_DSP_SIZE, 0}, -// //{NULL, NULL, 0x1FF80000, MEM_AXI_WRAM_SIZE, 0}, - {&g_fcram, &g_physical_fcram, 0x20000000, MEM_FCRAM_SIZE, MV_IS_PRIMARY_RAM}, + {&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 views[] = diff --git a/src/core/src/mem_map.h b/src/core/src/mem_map.h index 55f02e285..c72e722df 100644 --- a/src/core/src/mem_map.h +++ b/src/core/src/mem_map.h @@ -37,10 +37,17 @@ #define MEM_VRAM_SIZE 0x00600000 ///< VRAM size #define MEM_DSP_SIZE 0x00080000 ///< DSP memory size #define MEM_AXI_WRAM_SIZE 0x00080000 ///< AXI WRAM size -#define MEM_FCRAM_SIZE 0x08000000 ///< FCRAM size +#define MEM_FCRAM_SIZE 0x08000000 ///< FCRAM size... Really 0x07E00000, but power of 2 + // works much better +#define MEM_SCRATCHPAD_SIZE 0x00004000 ///< Typical stack size - TODO: Read from exheader #define MEM_VRAM_MASK 0x007FFFFF -#define MEM_FCRAM_MASK (MEM_FCRAM_SIZE - 1) ///< FCRAm mask +#define MEM_FCRAM_MASK (MEM_FCRAM_SIZE - 1) ///< FCRAM mask +#define MEM_SCRATCHPAD_MASK (MEM_SCRATCHPAD_SIZE - 1) ///< Scratchpad memory mask + +#define MEM_FCRAM_VADDR 0x08000000 +#define MEM_VRAM_VADDR 0x1F000000 +#define MEM_SCRATCHPAD_VADDR (0x10000000 - MEM_SCRATCHPAD_SIZE) ///< Scratchpad virtual address //////////////////////////////////////////////////////////////////////////////////////////////////// @@ -60,6 +67,7 @@ extern u8 *g_base; // 32-bit: Same as the corresponding physical/virtual pointers. extern u8* g_fcram; ///< Main memory extern u8* g_vram; ///< Video memory (VRAM) +extern u8* g_scratchpad; ///< Stack memory void Init(); void Shutdown(); diff --git a/src/core/src/mem_map_funcs.cpp b/src/core/src/mem_map_funcs.cpp index f00d10f87..c8436b2a4 100644 --- a/src/core/src/mem_map_funcs.cpp +++ b/src/core/src/mem_map_funcs.cpp @@ -38,7 +38,11 @@ inline void ReadFromHardware(T &var, const u32 addr) 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]); }*/ @@ -61,6 +65,11 @@ inline void WriteToHardware(u32 addr, const T data) { // 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 -- cgit v1.2.3