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

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This commit is contained in:
bunnei 2014-04-29 23:16:12 -04:00
parent c37390f8e2
commit 235dddb3f1
3 changed files with 17 additions and 1 deletions
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3
src/core/mem_map.cpp
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@ -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},

1
src/core/mem_map.h
View File

@ -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();

14
src/core/mem_map_funcs.cpp
View File

@ -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