added virtual memory map for ExeFS (where ARM11 code is supposed to be loaded)

3 files changed, 17 insertions, 1 deletions

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<T>(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<T>(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