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authorGravatar bunnei2014-04-17 21:05:34 -0400
committerGravatar bunnei2014-04-17 21:05:34 -0400
commit09ffe87360f39a76b084fe1c9bac2330d6f6f790 (patch)
treee6e670628ad7f49eaa32008f10ea4abe89584be0 /src/core/mem_map_funcs.cpp
parentcleaned up memory interfaces a lot, removed some hackish stuff (diff)
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more various refactors to memory interface
Diffstat (limited to 'src/core/mem_map_funcs.cpp')
-rw-r--r--src/core/mem_map_funcs.cpp40
1 files changed, 17 insertions, 23 deletions
diff --git a/src/core/mem_map_funcs.cpp b/src/core/mem_map_funcs.cpp
index bb83855fe..40d9dab3a 100644
--- a/src/core/mem_map_funcs.cpp
+++ b/src/core/mem_map_funcs.cpp
@@ -15,8 +15,8 @@ u32 _AddressPhysicalToVirtual(const u32 addr) {
15 // Our memory interface read/write functions assume virtual addresses. Put any physical address 15 // Our memory interface read/write functions assume virtual addresses. Put any physical address
16 // to virtual address translations here. This is obviously quite hacky... But we're not doing 16 // to virtual address translations here. This is obviously quite hacky... But we're not doing
17 // any MMU emulation yet or anything 17 // any MMU emulation yet or anything
18 if (((addr & 0xF0000000) == MEM_FCRAM_PADDR) && (addr < (MEM_FCRAM_PADDR_END))) { 18 if ((addr >= FCRAM_PADDR) && (addr < (FCRAM_PADDR_END))) {
19 return (addr & MEM_FCRAM_MASK) | MEM_FCRAM_VADDR; 19 return (addr & FCRAM_MASK) | FCRAM_VADDR;
20 } 20 }
21 return addr; 21 return addr;
22} 22}
@@ -40,15 +40,15 @@ inline void _Read(T &var, const u32 addr) {
40 } else if ((vaddr & 0xFF000000) == 0x10000000 || (vaddr & 0xFF000000) == 0x1E000000) { 40 } else if ((vaddr & 0xFF000000) == 0x10000000 || (vaddr & 0xFF000000) == 0x1E000000) {
41 HW::Read<T>(var, vaddr); 41 HW::Read<T>(var, vaddr);
42 42
43 // FCRAM 43 // FCRAM - application heap
44 } else if ((vaddr > MEM_FCRAM_VADDR) && (vaddr < MEM_FCRAM_VADDR_END)) { 44 } else if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
45 var = *((const T*)&g_fcram[vaddr & MEM_FCRAM_MASK]); 45 var = *((const T*)&g_heap[vaddr & HEAP_MASK]);
46 46
47 /*else if ((vaddr & 0x3F800000) == 0x04000000) { 47 /*else if ((vaddr & 0x3F800000) == 0x04000000) {
48 var = *((const T*)&m_pVRAM[vaddr & VRAM_MASK]);*/ 48 var = *((const T*)&m_pVRAM[vaddr & VRAM_MASK]);*/
49 49
50 } else { 50 } else {
51 _assert_msg_(MEMMAP, false, "unknown Read%d @ 0x%08X", sizeof(var) * 8, vaddr); 51 //_assert_msg_(MEMMAP, false, "unknown Read%d @ 0x%08X", sizeof(var) * 8, vaddr);
52 } 52 }
53} 53}
54 54
@@ -66,20 +66,14 @@ inline void _Write(u32 addr, const T data) {
66 // 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space 66 // 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space
67 } else if ((vaddr & 0xFF000000) == 0x10000000 || (vaddr & 0xFF000000) == 0x1E000000) { 67 } else if ((vaddr & 0xFF000000) == 0x10000000 || (vaddr & 0xFF000000) == 0x1E000000) {
68 HW::Write<T>(vaddr, data); 68 HW::Write<T>(vaddr, data);
69 69
70 // ExeFS:/.code is loaded here: 70 // FCRAM - GSP heap
71 } else if ((vaddr & 0xFFF00000) == 0x00100000) { 71 //} else if ((vaddr > HEAP_GSP_VADDR) && (vaddr < HEAP_VADDR_GSP_END)) {
72 // TODO(ShizZy): This is dumb... handle correctly. From 3DBrew: 72 // *(T*)&g_heap_gsp[vaddr & FCRAM_MASK] = data;
73 // http://3dbrew.org/wiki/Memory_layout#ARM11_User-land_memory_regions 73
74 // The ExeFS:/.code is loaded here, executables must be loaded to the 0x00100000 region when 74 // FCRAM - application heap
75 // the exheader "special memory" flag is clear. The 0x03F00000-byte size restriction only 75 } else if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
76 // applies when this flag is clear. Executables are usually loaded to 0x14000000 when the 76 *(T*)&g_heap[vaddr & HEAP_MASK] = data;
77 // exheader "special memory" flag is set, however this address can be arbitrary.
78 *(T*)&g_fcram[vaddr & MEM_FCRAM_MASK] = data;
79
80 // FCRAM
81 } else if ((vaddr > MEM_FCRAM_VADDR) && (vaddr < MEM_FCRAM_VADDR_END)) {
82 *(T*)&g_fcram[vaddr & MEM_FCRAM_MASK] = data;
83 77
84 } else if ((vaddr & 0xFF000000) == 0x14000000) { 78 } else if ((vaddr & 0xFF000000) == 0x14000000) {
85 _assert_msg_(MEMMAP, false, "umimplemented write to GSP heap"); 79 _assert_msg_(MEMMAP, false, "umimplemented write to GSP heap");
@@ -104,9 +98,9 @@ inline void _Write(u32 addr, const T data) {
104u8 *GetPointer(const u32 addr) { 98u8 *GetPointer(const u32 addr) {
105 const u32 vaddr = _AddressPhysicalToVirtual(addr); 99 const u32 vaddr = _AddressPhysicalToVirtual(addr);
106 100
107 // FCRAM 101 // FCRAM - application heap
108 if ((vaddr > MEM_FCRAM_VADDR) && (vaddr < MEM_FCRAM_VADDR_END)) { 102 if ((vaddr > HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
109 return g_fcram + (vaddr & MEM_FCRAM_MASK); 103 return g_heap + (vaddr & HEAP_MASK);
110 104
111 } else { 105 } else {
112 ERROR_LOG(MEMMAP, "Unknown GetPointer @ 0x%08x", vaddr); 106 ERROR_LOG(MEMMAP, "Unknown GetPointer @ 0x%08x", vaddr);