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MemMap: Updated memory map to subtract base address instead of mask.

Browse source 
- More readable, a little less error prone.

Conflicts:
	src/core/mem_map.h
	src/core/mem_map_funcs.cpp
This commit is contained in:
bunnei 2014-12-03 01:13:29 -05:00
parent d5be332d21
commit e3886adc22
2 changed files with 21 additions and 31 deletions
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42
src/core/mem_map_funcs.cpp
View file

@ -56,7 +56,7 @@ inline void Read(T &var, const VAddr vaddr) {
// Kernel memory command buffer
if (vaddr >= KERNEL_MEMORY_VADDR && vaddr < KERNEL_MEMORY_VADDR_END) {
var = *((const T*)&g_kernel_mem[vaddr & KERNEL_MEMORY_MASK]);
var = *((const T*)&g_kernel_mem[vaddr - KERNEL_MEMORY_VADDR]);
// Hardware I/O register reads
// 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space
@ -65,23 +65,23 @@ inline void Read(T &var, const VAddr 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]);
var = *((const T*)&g_exefs_code[vaddr - EXEFS_CODE_VADDR]);
// FCRAM - GSP heap
} else if ((vaddr >= HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) {
var = *((const T*)&g_heap_gsp[vaddr & HEAP_GSP_MASK]);
var = *((const T*)&g_heap_gsp[vaddr - HEAP_GSP_VADDR]);
// FCRAM - application heap
} else if ((vaddr >= HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
var = *((const T*)&g_heap[vaddr & HEAP_MASK]);
var = *((const T*)&g_heap[vaddr - HEAP_VADDR]);
// Shared memory
} else if ((vaddr >= SHARED_MEMORY_VADDR) && (vaddr < SHARED_MEMORY_VADDR_END)) {
var = *((const T*)&g_shared_mem[vaddr & SHARED_MEMORY_MASK]);
var = *((const T*)&g_shared_mem[vaddr - SHARED_MEMORY_VADDR]);
// System memory
} else if ((vaddr >= SYSTEM_MEMORY_VADDR) && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
var = *((const T*)&g_system_mem[vaddr & SYSTEM_MEMORY_MASK]);
var = *((const T*)&g_system_mem[vaddr - SYSTEM_MEMORY_VADDR]);
// Config memory
} else if ((vaddr >= CONFIG_MEMORY_VADDR) && (vaddr < CONFIG_MEMORY_VADDR_END)) {
@ -89,7 +89,7 @@ inline void Read(T &var, const VAddr vaddr) {
// VRAM
} else if ((vaddr >= VRAM_VADDR) && (vaddr < VRAM_VADDR_END)) {
var = *((const T*)&g_vram[vaddr & VRAM_MASK]);
var = *((const T*)&g_vram[vaddr - VRAM_VADDR]);
} else {
ERROR_LOG(MEMMAP, "unknown Read%lu @ 0x%08X", sizeof(var) * 8, vaddr);
@ -101,7 +101,7 @@ inline void Write(const VAddr vaddr, const T data) {
// Kernel memory command buffer
if (vaddr >= KERNEL_MEMORY_VADDR && vaddr < KERNEL_MEMORY_VADDR_END) {
*(T*)&g_kernel_mem[vaddr & KERNEL_MEMORY_MASK] = data;
*(T*)&g_kernel_mem[vaddr - KERNEL_MEMORY_VADDR] = data;
// Hardware I/O register writes
// 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space
@ -110,27 +110,27 @@ inline void Write(const VAddr vaddr, const T 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;
*(T*)&g_exefs_code[vaddr - EXEFS_CODE_VADDR] = data;
// FCRAM - GSP heap
} else if ((vaddr >= HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) {
*(T*)&g_heap_gsp[vaddr & HEAP_GSP_MASK] = data;
*(T*)&g_heap_gsp[vaddr - HEAP_GSP_VADDR] = data;
// FCRAM - application heap
} else if ((vaddr >= HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
*(T*)&g_heap[vaddr & HEAP_MASK] = data;
*(T*)&g_heap[vaddr - HEAP_VADDR] = data;
// Shared memory
} else if ((vaddr >= SHARED_MEMORY_VADDR) && (vaddr < SHARED_MEMORY_VADDR_END)) {
*(T*)&g_shared_mem[vaddr & SHARED_MEMORY_MASK] = data;
*(T*)&g_shared_mem[vaddr - SHARED_MEMORY_VADDR] = data;
// System memory
} else if ((vaddr >= SYSTEM_MEMORY_VADDR) && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
*(T*)&g_system_mem[vaddr & SYSTEM_MEMORY_MASK] = data;
*(T*)&g_system_mem[vaddr - SYSTEM_MEMORY_VADDR] = data;
// VRAM
} else if ((vaddr >= VRAM_VADDR) && (vaddr < VRAM_VADDR_END)) {
*(T*)&g_vram[vaddr & VRAM_MASK] = data;
*(T*)&g_vram[vaddr - VRAM_VADDR] = data;
//} else if ((vaddr & 0xFFF00000) == 0x1FF00000) {
// _assert_msg_(MEMMAP, false, "umimplemented write to DSP memory");
@ -148,31 +148,31 @@ inline void Write(const VAddr vaddr, const T data) {
u8 *GetPointer(const VAddr vaddr) {
// Kernel memory command buffer
if (vaddr >= KERNEL_MEMORY_VADDR && vaddr < KERNEL_MEMORY_VADDR_END) {
return g_kernel_mem + (vaddr & KERNEL_MEMORY_MASK);
return g_kernel_mem + (vaddr - KERNEL_MEMORY_VADDR);
// ExeFS:/.code is loaded here
} else if ((vaddr >= EXEFS_CODE_VADDR) && (vaddr < EXEFS_CODE_VADDR_END)) {
return g_exefs_code + (vaddr & EXEFS_CODE_MASK);
return g_exefs_code + (vaddr - EXEFS_CODE_VADDR);
// FCRAM - GSP heap
} else if ((vaddr >= HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) {
return g_heap_gsp + (vaddr & HEAP_GSP_MASK);
return g_heap_gsp + (vaddr - HEAP_GSP_VADDR);
// FCRAM - application heap
} else if ((vaddr >= HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
return g_heap + (vaddr & HEAP_MASK);
return g_heap + (vaddr - HEAP_VADDR);
// Shared memory
} else if ((vaddr >= SHARED_MEMORY_VADDR) && (vaddr < SHARED_MEMORY_VADDR_END)) {
return g_shared_mem + (vaddr & SHARED_MEMORY_MASK);
return g_shared_mem + (vaddr - SHARED_MEMORY_VADDR);
// System memory
} else if ((vaddr >= SYSTEM_MEMORY_VADDR) && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
return g_system_mem + (vaddr & SYSTEM_MEMORY_MASK);
return g_system_mem + (vaddr - SYSTEM_MEMORY_VADDR);
// VRAM
} else if ((vaddr >= VRAM_VADDR) && (vaddr < VRAM_VADDR_END)) {
return g_vram + (vaddr & VRAM_MASK);
return g_vram + (vaddr - VRAM_VADDR);
} else {
ERROR_LOG(MEMMAP, "unknown GetPointer @ 0x%08x", vaddr);