From 235dddb3f134208e30683c951158616427568af7 Mon Sep 17 00:00:00 2001 From: bunnei Date: Tue, 29 Apr 2014 23:16:12 -0400 Subject: added virtual memory map for ExeFS (where ARM11 code is supposed to be loaded) --- src/core/mem_map.cpp | 3 +++ src/core/mem_map.h | 1 + src/core/mem_map_funcs.cpp | 14 +++++++++++++- 3 files changed, 17 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/core/mem_map.cpp b/src/core/mem_map.cpp index 96245e32..af99cbe3 100644 --- a/src/core/mem_map.cpp +++ b/src/core/mem_map.cpp @@ -16,6 +16,7 @@ u8* g_base = NULL; ///< The base pointer to the aut MemArena g_arena; ///< The MemArena class +u8* g_exefs_code = NULL; ///< ExeFS:/.code is loaded here u8* g_heap = NULL; ///< Application heap (main memory) u8* g_heap_gsp = NULL; ///< GSP heap (main memory) u8* g_vram = NULL; ///< Video memory (VRAM) pointer @@ -24,6 +25,7 @@ u8* g_shared_mem = NULL; ///< Shared memory u8* g_physical_bootrom = NULL; ///< Bootrom physical memory u8* g_uncached_bootrom = NULL; +u8* g_physical_exefs_code = NULL; ///< Phsical ExeFS:/.code is loaded here u8* g_physical_fcram = NULL; ///< Main physical memory (FCRAM) u8* g_physical_heap_gsp = NULL; ///< GSP heap physical memory u8* g_physical_vram = NULL; ///< Video physical memory (VRAM) @@ -31,6 +33,7 @@ u8* g_physical_shared_mem = NULL; ///< Physical shared memory // We don't declare the IO region in here since its handled by other means. static MemoryView g_views[] = { + {&g_exefs_code, &g_physical_exefs_code, EXEFS_CODE_VADDR, EXEFS_CODE_SIZE, 0}, {&g_vram, &g_physical_vram, VRAM_VADDR, VRAM_SIZE, 0}, {&g_heap, &g_physical_fcram, HEAP_VADDR, HEAP_SIZE, MV_IS_PRIMARY_RAM}, {&g_shared_mem, &g_physical_shared_mem, SHARED_MEMORY_VADDR, SHARED_MEMORY_SIZE, 0}, diff --git a/src/core/mem_map.h b/src/core/mem_map.h index e378f118..00c3b47f 100644 --- a/src/core/mem_map.h +++ b/src/core/mem_map.h @@ -105,6 +105,7 @@ extern u8* g_heap_gsp; ///< GSP heap (main memory) extern u8* g_heap; ///< Application heap (main memory) extern u8* g_vram; ///< Video memory (VRAM) extern u8* g_shared_mem; ///< Shared memory +extern u8* g_exefs_code; ///< ExeFS:/.code is loaded here void Init(); void Shutdown(); diff --git a/src/core/mem_map_funcs.cpp b/src/core/mem_map_funcs.cpp index b524d19d..2284b535 100644 --- a/src/core/mem_map_funcs.cpp +++ b/src/core/mem_map_funcs.cpp @@ -58,6 +58,10 @@ inline void _Read(T &var, const u32 addr) { } else if ((vaddr >= HARDWARE_IO_VADDR) && (vaddr < HARDWARE_IO_VADDR_END)) { HW::Read(var, vaddr); + // ExeFS:/.code is loaded here + } else if ((vaddr >= EXEFS_CODE_VADDR) && (vaddr < EXEFS_CODE_VADDR_END)) { + var = *((const T*)&g_exefs_code[vaddr & EXEFS_CODE_MASK]); + // FCRAM - GSP heap } else if ((vaddr >= HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) { var = *((const T*)&g_heap_gsp[vaddr & HEAP_GSP_MASK]); @@ -94,6 +98,10 @@ inline void _Write(u32 addr, const T data) { } else if ((vaddr >= HARDWARE_IO_VADDR) && (vaddr < HARDWARE_IO_VADDR_END)) { HW::Write(vaddr, data); + // ExeFS:/.code is loaded here + } else if ((vaddr >= EXEFS_CODE_VADDR) && (vaddr < EXEFS_CODE_VADDR_END)) { + *(T*)&g_exefs_code[vaddr & EXEFS_CODE_MASK] = data; + // FCRAM - GSP heap } else if ((vaddr >= HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) { *(T*)&g_heap_gsp[vaddr & HEAP_GSP_MASK] = data; @@ -127,8 +135,12 @@ inline void _Write(u32 addr, const T data) { u8 *GetPointer(const u32 addr) { const u32 vaddr = _VirtualAddress(addr); + // ExeFS:/.code is loaded here + if ((vaddr >= EXEFS_CODE_VADDR) && (vaddr < EXEFS_CODE_VADDR_END)) { + return g_exefs_code + (vaddr & EXEFS_CODE_MASK); + // FCRAM - GSP heap - if ((vaddr >= HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) { + } else if ((vaddr >= HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) { return g_heap_gsp + (vaddr & HEAP_GSP_MASK); // FCRAM - application heap -- cgit v1.2.3