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https://github.com/Lime3DS/Lime3DS.git
synced 2024-11-01 16:05:07 +01:00
added memory read/write to GSP heap
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09ffe87360
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@ -16,9 +16,8 @@ u8* g_base = NULL; ///< The base pointer to the aut
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MemArena g_arena; ///< The MemArena class
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u8* g_bootrom = NULL; ///< Bootrom physical memory
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u8* g_heap_gsp = NULL;
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u8* g_heap = NULL;
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u8* g_heap_gsp = NULL; ///< GSP heap (main memory)
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u8* g_heap = NULL; ///< Application heap (main memory)
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u8* g_vram = NULL; ///< Video memory (VRAM) pointer
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u8* g_physical_bootrom = NULL; ///< Bootrom physical memory
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@ -34,6 +34,7 @@ enum {
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VRAM_MASK = 0x007FFFFF,
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FCRAM_MASK = (FCRAM_SIZE - 1), ///< FCRAM mask
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SCRATCHPAD_MASK = (SCRATCHPAD_SIZE - 1), ///< Scratchpad memory mask
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HEAP_GSP_MASK = (HEAP_GSP_SIZE - 1),
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HEAP_MASK = (HEAP_SIZE - 1),
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FCRAM_PADDR = 0x20000000, ///< FCRAM physical address
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@ -62,7 +63,8 @@ extern u8 *g_base;
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// These are guaranteed to point to "low memory" addresses (sub-32-bit).
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// 64-bit: Pointers to low-mem (sub-0x10000000) mirror
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// 32-bit: Same as the corresponding physical/virtual pointers.
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extern u8* g_heap; ///< Main memory
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extern u8* g_heap_gsp; ///< GSP heap (main memory)
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extern u8* g_heap; ///< Application heap (main memory)
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extern u8* g_vram; ///< Video memory (VRAM)
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void Init();
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@ -40,6 +40,10 @@ inline void _Read(T &var, const u32 addr) {
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} else if ((vaddr & 0xFF000000) == 0x10000000 || (vaddr & 0xFF000000) == 0x1E000000) {
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HW::Read<T>(var, vaddr);
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// FCRAM - GSP heap
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} else if ((vaddr > HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) {
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var = *((const T*)&g_heap_gsp[vaddr & HEAP_GSP_MASK]);
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// FCRAM - application heap
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} else if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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var = *((const T*)&g_heap[vaddr & HEAP_MASK]);
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@ -68,8 +72,8 @@ inline void _Write(u32 addr, const T data) {
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HW::Write<T>(vaddr, data);
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// FCRAM - GSP heap
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//} else if ((vaddr > HEAP_GSP_VADDR) && (vaddr < HEAP_VADDR_GSP_END)) {
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// *(T*)&g_heap_gsp[vaddr & FCRAM_MASK] = data;
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} else if ((vaddr > HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) {
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*(T*)&g_heap_gsp[vaddr & HEAP_GSP_MASK] = data;
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// FCRAM - application heap
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} else if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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@ -98,8 +102,12 @@ inline void _Write(u32 addr, const T data) {
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u8 *GetPointer(const u32 addr) {
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const u32 vaddr = _AddressPhysicalToVirtual(addr);
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// FCRAM - GSP heap
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if ((vaddr > HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) {
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return g_heap_gsp + (vaddr & HEAP_GSP_MASK);
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// FCRAM - application heap
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if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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} else if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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return g_heap + (vaddr & HEAP_MASK);
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} else {
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