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added support for reading/writing to stack mem

This commit is contained in:
bunnei 2014-03-31 21:05:51 -04:00
parent 07ea22de5c
commit a36f9492cc
3 changed files with 40 additions and 17 deletions
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20
src/core/src/mem_map.cpp
View File

@ -40,23 +40,29 @@ 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_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_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_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[] =

12
src/core/src/mem_map.h
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@ -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();

9
src/core/src/mem_map_funcs.cpp
View File

@ -38,6 +38,10 @@ 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