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-rw-r--r--src/core/src/mem_map.cpp53
-rw-r--r--src/core/src/mem_map.h2
2 files changed, 36 insertions, 19 deletions
diff --git a/src/core/src/mem_map.cpp b/src/core/src/mem_map.cpp
index 8793fdc8d..0d3c6ca12 100644
--- a/src/core/src/mem_map.cpp
+++ b/src/core/src/mem_map.cpp
@@ -33,29 +33,47 @@
namespace Memory {
-u8* g_mem_base = NULL; ///< The base pointer to the auto-mirrored arena.
+u8* g_base = NULL; ///< The base pointer to the auto-mirrored arena.
-MemArena g_mem_arena; ///< The MemArena class
+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_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)
// We don't declare the IO region in here since its handled by other means.
-static MemoryView g_mem_views[] =
+static MemoryView g_views[] =
{
- {NULL, NULL, 0x00000000, MEM_BOOTROM_SIZE, 0},
- {NULL, NULL, 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_ram, &g_physical_fcram, 0x20000000, MEM_FCRAM_SIZE, MV_IS_PRIMARY_RAM},
+ {&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},
};
-static const int kNumMemViews = sizeof(g_mem_views) / sizeof(MemoryView); ///< Number of mem views
+/*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.
+};*/
+
+static const int kNumMemViews = sizeof(g_views) / sizeof(MemoryView); ///< Number of mem views
u8 Read8(const u32 addr) {
return 0xDE;
@@ -81,11 +99,10 @@ void Write32(const u32 addr, const u32 data) {
void Init() {
int flags = 0;
- for (size_t i = 0; i < ARRAY_SIZE(g_mem_views); i++) {
- if (g_mem_views[i].flags & MV_IS_PRIMARY_RAM)
- g_mem_views[i].size = MEMORY_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 = MEMORY_SIZE;
}
- g_base = MemoryMap_Setup(g_mem_views, kNumMemViews, flags, &g_mem_arena);
INFO_LOG(MEMMAP, "Memory system initialized. RAM at %p (mirror at 0 @ %p)", g_fcram,
g_physical_fcram);
@@ -93,9 +110,9 @@ void Init() {
void Shutdown() {
u32 flags = 0;
- MemoryMap_Shutdown(g_mem_views, kNumMemViews, flags, &g_mem_arena);
- g_mem_arena.ReleaseSpace();
- g_mem_base = NULL;
+ MemoryMap_Shutdown(g_views, kNumMemViews, flags, &g_arena);
+ g_arena.ReleaseSpace();
+ g_base = NULL;
INFO_LOG(MEMMAP, "Memory system shut down.");
}
diff --git a/src/core/src/mem_map.h b/src/core/src/mem_map.h
index 29ec2e7a9..a6370f766 100644
--- a/src/core/src/mem_map.h
+++ b/src/core/src/mem_map.h
@@ -58,7 +58,7 @@ extern u8 *g_base;
// These are guaranteed to point to "low memory" addresses (sub-32-bit).
// 64-bit: Pointers to low-mem (sub-0x10000000) mirror
// 32-bit: Same as the corresponding physical/virtual pointers.
-extern u8* g_ram; ///< Main memory
+extern u8* g_fcram; ///< Main memory
extern u8* g_vram; ///< Video memory (VRAM)
void Init();