Mirrors/yuzu
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Memory: Use a table based lookup scheme to read from memory regions

Browse source
This commit is contained in:
Yuri Kunde Schlesner 2015-05-12 23:38:56 -03:00
parent 52158c1b8d
commit dd4430609a
5 changed files with 167 additions and 121 deletions
Download patch file Download diff file Expand all files Collapse all files

25
src/core/mem_map.cpp
View file

@ -7,8 +7,11 @@
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/hle/config_mem.h"
#include "core/hle/shared_page.h"
#include "core/mem_map.h"
#include "core/memory.h"
#include "core/memory_setup.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -26,18 +29,19 @@ namespace {
struct MemoryArea {
u8** ptr;
size_t size;
u32 base;
u32 size;
};
// We don't declare the IO regions in here since its handled by other means.
static MemoryArea memory_areas[] = {
{&g_exefs_code, PROCESS_IMAGE_MAX_SIZE},
{&g_heap, HEAP_SIZE },
{&g_shared_mem, SHARED_MEMORY_SIZE },
{&g_heap_linear, LINEAR_HEAP_SIZE },
{&g_vram, VRAM_SIZE },
{&g_dsp_mem, DSP_RAM_SIZE },
{&g_tls_mem, TLS_AREA_SIZE },
{&g_exefs_code, PROCESS_IMAGE_VADDR, PROCESS_IMAGE_MAX_SIZE},
{&g_heap, HEAP_VADDR, HEAP_SIZE },
{&g_shared_mem, SHARED_MEMORY_VADDR, SHARED_MEMORY_SIZE },
{&g_heap_linear, LINEAR_HEAP_VADDR, LINEAR_HEAP_SIZE },
{&g_vram, VRAM_VADDR, VRAM_SIZE },
{&g_dsp_mem, DSP_RAM_VADDR, DSP_RAM_SIZE },
{&g_tls_mem, TLS_AREA_VADDR, TLS_AREA_SIZE },
};
/// Represents a block of memory mapped by ControlMemory/MapMemoryBlock
@ -132,9 +136,14 @@ VAddr PhysicalToVirtualAddress(const PAddr addr) {
}
void Init() {
InitMemoryMap();
for (MemoryArea& area : memory_areas) {
*area.ptr = new u8[area.size];
MapMemoryRegion(area.base, area.size, *area.ptr);
}
MapMemoryRegion(CONFIG_MEMORY_VADDR, CONFIG_MEMORY_SIZE, (u8*)&ConfigMem::config_mem);
MapMemoryRegion(SHARED_PAGE_VADDR, SHARED_PAGE_SIZE, (u8*)&SharedPage::shared_page);
LOG_DEBUG(HW_Memory, "initialized OK, RAM at %p", g_heap);
}