2014-04-09 04:45:46 +05:30
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// Copyright 2014 Citra Emulator Project
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2014-12-17 11:08:14 +05:30
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// Licensed under GPLv2 or any later version
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2014-04-09 04:45:46 +05:30
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// Refer to the license.txt file included.
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2013-09-19 09:22:51 +05:30
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2014-04-18 08:35:31 +05:30
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#include <map>
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2014-04-09 05:45:08 +05:30
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#include "common/common.h"
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2013-09-19 09:22:51 +05:30
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2014-04-09 05:45:08 +05:30
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#include "core/mem_map.h"
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#include "core/hw/hw.h"
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2014-05-07 09:02:04 +05:30
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#include "hle/config_mem.h"
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2015-01-02 11:11:34 +05:30
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#include "hle/shared_page.h"
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2013-09-19 09:22:51 +05:30
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namespace Memory {
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2014-11-18 19:18:11 +05:30
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static std::map<u32, MemoryBlock> heap_map;
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2014-11-23 09:05:45 +05:30
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static std::map<u32, MemoryBlock> heap_linear_map;
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2014-11-18 19:18:11 +05:30
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static std::map<u32, MemoryBlock> shared_map;
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2014-04-18 08:35:31 +05:30
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2014-08-03 05:16:47 +05:30
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/// Convert a physical address to virtual address
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2014-08-28 23:50:55 +05:30
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VAddr PhysicalToVirtualAddress(const PAddr addr) {
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2014-08-03 05:16:47 +05:30
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// Our memory interface read/write functions assume virtual addresses. Put any physical address
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// to virtual address translations here. This is quite hacky, but necessary until we implement
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// proper MMU emulation.
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// TODO: Screw it, I'll let bunnei figure out how to do this properly.
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if ((addr >= VRAM_PADDR) && (addr < VRAM_PADDR_END)) {
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return addr - VRAM_PADDR + VRAM_VADDR;
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}else if ((addr >= FCRAM_PADDR) && (addr < FCRAM_PADDR_END)) {
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return addr - FCRAM_PADDR + FCRAM_VADDR;
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}
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2014-12-06 07:23:49 +05:30
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LOG_ERROR(HW_Memory, "Unknown physical address @ 0x%08x", addr);
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2014-08-03 05:16:47 +05:30
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return addr;
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}
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2014-04-26 23:51:40 +05:30
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2014-08-03 05:16:47 +05:30
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/// Convert a physical address to virtual address
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2014-08-28 23:50:55 +05:30
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PAddr VirtualToPhysicalAddress(const VAddr addr) {
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2014-08-03 05:16:47 +05:30
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// Our memory interface read/write functions assume virtual addresses. Put any physical address
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// to virtual address translations here. This is quite hacky, but necessary until we implement
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// proper MMU emulation.
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// TODO: Screw it, I'll let bunnei figure out how to do this properly.
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if ((addr >= VRAM_VADDR) && (addr < VRAM_VADDR_END)) {
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return addr - 0x07000000;
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} else if ((addr >= FCRAM_VADDR) && (addr < FCRAM_VADDR_END)) {
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return addr - FCRAM_VADDR + FCRAM_PADDR;
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2014-04-18 04:10:42 +05:30
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}
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2014-08-03 05:16:47 +05:30
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2014-12-06 07:23:49 +05:30
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LOG_ERROR(HW_Memory, "Unknown virtual address @ 0x%08x", addr);
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2014-04-18 04:10:42 +05:30
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return addr;
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}
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2013-09-19 09:22:51 +05:30
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template <typename T>
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2014-08-28 23:50:55 +05:30
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inline void Read(T &var, const VAddr vaddr) {
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2014-04-02 03:48:02 +05:30
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// TODO: Figure out the fastest order of tests for both read and write (they are probably different).
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// TODO: Make sure this represents the mirrors in a correct way.
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// Could just do a base-relative read, too.... TODO
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2013-09-19 09:22:51 +05:30
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2014-05-08 06:34:55 +05:30
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// Kernel memory command buffer
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if (vaddr >= KERNEL_MEMORY_VADDR && vaddr < KERNEL_MEMORY_VADDR_END) {
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2014-12-03 11:43:29 +05:30
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var = *((const T*)&g_kernel_mem[vaddr - KERNEL_MEMORY_VADDR]);
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2014-04-13 07:25:36 +05:30
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2014-04-30 08:46:12 +05:30
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// ExeFS:/.code is loaded here
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} else if ((vaddr >= EXEFS_CODE_VADDR) && (vaddr < EXEFS_CODE_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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var = *((const T*)&g_exefs_code[vaddr - EXEFS_CODE_VADDR]);
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2014-04-30 08:46:12 +05:30
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2014-11-23 09:05:45 +05:30
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// FCRAM - linear heap
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} else if ((vaddr >= HEAP_LINEAR_VADDR) && (vaddr < HEAP_LINEAR_VADDR_END)) {
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var = *((const T*)&g_heap_linear[vaddr - HEAP_LINEAR_VADDR]);
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2014-04-18 06:45:40 +05:30
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2014-04-18 06:35:34 +05:30
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// FCRAM - application heap
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2014-04-25 09:26:06 +05:30
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} else if ((vaddr >= HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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var = *((const T*)&g_heap[vaddr - HEAP_VADDR]);
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2014-04-18 04:10:42 +05:30
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2014-04-25 09:26:06 +05:30
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// Shared memory
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} else if ((vaddr >= SHARED_MEMORY_VADDR) && (vaddr < SHARED_MEMORY_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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var = *((const T*)&g_shared_mem[vaddr - SHARED_MEMORY_VADDR]);
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2014-04-25 09:26:06 +05:30
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2014-05-16 04:26:28 +05:30
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// System memory
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} else if ((vaddr >= SYSTEM_MEMORY_VADDR) && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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var = *((const T*)&g_system_mem[vaddr - SYSTEM_MEMORY_VADDR]);
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2014-05-16 04:26:28 +05:30
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2014-05-07 09:02:04 +05:30
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// Config memory
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} else if ((vaddr >= CONFIG_MEMORY_VADDR) && (vaddr < CONFIG_MEMORY_VADDR_END)) {
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ConfigMem::Read<T>(var, vaddr);
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2015-01-02 11:11:34 +05:30
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// Shared page
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} else if ((vaddr >= SHARED_PAGE_VADDR) && (vaddr < SHARED_PAGE_VADDR_END)) {
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SharedPage::Read<T>(var, vaddr);
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2014-12-30 09:05:06 +05:30
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// DSP memory
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} else if ((vaddr >= DSP_MEMORY_VADDR) && (vaddr < DSP_MEMORY_VADDR_END)) {
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var = *((const T*)&g_dsp_mem[vaddr - DSP_MEMORY_VADDR]);
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2014-04-26 10:57:25 +05:30
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// VRAM
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} else if ((vaddr >= VRAM_VADDR) && (vaddr < VRAM_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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var = *((const T*)&g_vram[vaddr - VRAM_VADDR]);
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2014-04-26 10:57:25 +05:30
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2014-04-04 07:34:50 +05:30
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} else {
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2014-12-06 07:23:49 +05:30
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LOG_ERROR(HW_Memory, "unknown Read%lu @ 0x%08X", sizeof(var) * 8, vaddr);
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2014-04-02 03:48:02 +05:30
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}
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2013-09-19 09:22:51 +05:30
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}
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template <typename T>
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2014-08-28 23:50:55 +05:30
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inline void Write(const VAddr vaddr, const T data) {
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2014-08-03 05:16:47 +05:30
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2014-05-08 06:34:55 +05:30
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// Kernel memory command buffer
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if (vaddr >= KERNEL_MEMORY_VADDR && vaddr < KERNEL_MEMORY_VADDR_END) {
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2014-12-03 11:43:29 +05:30
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*(T*)&g_kernel_mem[vaddr - KERNEL_MEMORY_VADDR] = data;
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2014-04-13 07:25:36 +05:30
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2014-04-30 08:46:12 +05:30
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// ExeFS:/.code is loaded here
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} else if ((vaddr >= EXEFS_CODE_VADDR) && (vaddr < EXEFS_CODE_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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*(T*)&g_exefs_code[vaddr - EXEFS_CODE_VADDR] = data;
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2014-04-30 08:46:12 +05:30
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2014-11-23 09:05:45 +05:30
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// FCRAM - linear heap
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} else if ((vaddr >= HEAP_LINEAR_VADDR) && (vaddr < HEAP_LINEAR_VADDR_END)) {
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*(T*)&g_heap_linear[vaddr - HEAP_LINEAR_VADDR] = data;
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2014-04-18 06:35:34 +05:30
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// FCRAM - application heap
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2014-04-25 09:26:06 +05:30
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} else if ((vaddr >= HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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*(T*)&g_heap[vaddr - HEAP_VADDR] = data;
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2014-04-04 07:34:50 +05:30
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2014-04-25 09:26:06 +05:30
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// Shared memory
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} else if ((vaddr >= SHARED_MEMORY_VADDR) && (vaddr < SHARED_MEMORY_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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*(T*)&g_shared_mem[vaddr - SHARED_MEMORY_VADDR] = data;
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2014-04-25 09:26:06 +05:30
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2014-05-16 04:26:28 +05:30
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// System memory
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} else if ((vaddr >= SYSTEM_MEMORY_VADDR) && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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*(T*)&g_system_mem[vaddr - SYSTEM_MEMORY_VADDR] = data;
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2014-05-16 04:26:28 +05:30
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2014-04-26 10:57:25 +05:30
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// VRAM
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} else if ((vaddr >= VRAM_VADDR) && (vaddr < VRAM_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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*(T*)&g_vram[vaddr - VRAM_VADDR] = data;
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2014-04-26 10:57:25 +05:30
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2014-12-30 09:05:06 +05:30
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// DSP memory
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} else if ((vaddr >= DSP_MEMORY_VADDR) && (vaddr < DSP_MEMORY_VADDR_END)) {
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*(T*)&g_dsp_mem[vaddr - DSP_MEMORY_VADDR] = data;
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2014-05-07 09:02:04 +05:30
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//} else if ((vaddr & 0xFFFF0000) == 0x1FF80000) {
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// _assert_msg_(MEMMAP, false, "umimplemented write to Configuration Memory");
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//} else if ((vaddr & 0xFFFFF000) == 0x1FF81000) {
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// _assert_msg_(MEMMAP, false, "umimplemented write to shared page");
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2014-08-03 05:16:47 +05:30
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2014-04-04 07:34:50 +05:30
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// Error out...
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2014-04-02 03:48:02 +05:30
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} else {
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2014-12-06 07:23:49 +05:30
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LOG_ERROR(HW_Memory, "unknown Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, (u32)data, vaddr);
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2014-04-02 03:48:02 +05:30
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}
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2013-09-19 09:22:51 +05:30
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}
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2014-08-28 23:50:55 +05:30
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u8 *GetPointer(const VAddr vaddr) {
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2014-05-08 06:34:55 +05:30
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// Kernel memory command buffer
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if (vaddr >= KERNEL_MEMORY_VADDR && vaddr < KERNEL_MEMORY_VADDR_END) {
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2014-12-03 11:43:29 +05:30
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return g_kernel_mem + (vaddr - KERNEL_MEMORY_VADDR);
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2014-05-08 06:34:55 +05:30
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2014-04-30 08:46:12 +05:30
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// ExeFS:/.code is loaded here
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2014-05-08 06:34:55 +05:30
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} else if ((vaddr >= EXEFS_CODE_VADDR) && (vaddr < EXEFS_CODE_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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return g_exefs_code + (vaddr - EXEFS_CODE_VADDR);
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2014-04-30 08:46:12 +05:30
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2014-11-23 09:05:45 +05:30
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// FCRAM - linear heap
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} else if ((vaddr >= HEAP_LINEAR_VADDR) && (vaddr < HEAP_LINEAR_VADDR_END)) {
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return g_heap_linear + (vaddr - HEAP_LINEAR_VADDR);
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2014-04-18 06:45:40 +05:30
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2014-04-18 06:35:34 +05:30
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// FCRAM - application heap
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2014-04-18 07:10:42 +05:30
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} else if ((vaddr >= HEAP_VADDR) && (vaddr < HEAP_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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return g_heap + (vaddr - HEAP_VADDR);
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2014-04-18 04:10:42 +05:30
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2014-04-25 09:26:06 +05:30
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// Shared memory
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2014-05-16 04:26:28 +05:30
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} else if ((vaddr >= SHARED_MEMORY_VADDR) && (vaddr < SHARED_MEMORY_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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return g_shared_mem + (vaddr - SHARED_MEMORY_VADDR);
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2014-04-25 09:26:06 +05:30
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2014-05-16 04:26:28 +05:30
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// System memory
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} else if ((vaddr >= SYSTEM_MEMORY_VADDR) && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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return g_system_mem + (vaddr - SYSTEM_MEMORY_VADDR);
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2014-05-16 04:26:28 +05:30
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2014-04-26 10:57:25 +05:30
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// VRAM
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2014-07-23 08:08:21 +05:30
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} else if ((vaddr >= VRAM_VADDR) && (vaddr < VRAM_VADDR_END)) {
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2014-12-03 11:43:29 +05:30
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return g_vram + (vaddr - VRAM_VADDR);
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2014-04-26 10:57:25 +05:30
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2014-04-07 08:26:08 +05:30
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} else {
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2014-12-06 07:23:49 +05:30
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LOG_ERROR(HW_Memory, "unknown GetPointer @ 0x%08x", vaddr);
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2014-04-02 03:48:02 +05:30
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return 0;
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}
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2014-03-25 20:20:34 +05:30
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}
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2014-04-25 08:02:26 +05:30
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/**
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* Maps a block of memory on the heap
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* @param size Size of block in bytes
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* @param operation Memory map operation type
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* @param flags Memory allocation flags
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*/
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u32 MapBlock_Heap(u32 size, u32 operation, u32 permissions) {
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MemoryBlock block;
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2014-08-03 05:16:47 +05:30
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2014-04-25 08:02:26 +05:30
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block.base_address = HEAP_VADDR;
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block.size = size;
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block.operation = operation;
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block.permissions = permissions;
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2014-08-03 05:16:47 +05:30
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2014-11-18 19:18:11 +05:30
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if (heap_map.size() > 0) {
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const MemoryBlock last_block = heap_map.rbegin()->second;
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2014-04-25 08:02:26 +05:30
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block.address = last_block.address + last_block.size;
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}
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2014-11-18 19:18:11 +05:30
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heap_map[block.GetVirtualAddress()] = block;
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2014-04-25 08:02:26 +05:30
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return block.GetVirtualAddress();
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}
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2014-04-18 08:35:31 +05:30
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/**
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2014-11-23 09:05:45 +05:30
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* Maps a block of memory on the linear heap
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2014-04-18 08:35:31 +05:30
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* @param size Size of block in bytes
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2014-04-25 08:02:26 +05:30
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* @param operation Memory map operation type
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2014-04-18 08:35:31 +05:30
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* @param flags Memory allocation flags
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*/
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2014-11-23 09:05:45 +05:30
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u32 MapBlock_HeapLinear(u32 size, u32 operation, u32 permissions) {
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2014-04-25 08:02:26 +05:30
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MemoryBlock block;
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2014-08-03 05:16:47 +05:30
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2014-11-23 09:05:45 +05:30
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block.base_address = HEAP_LINEAR_VADDR;
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2014-04-18 08:35:31 +05:30
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block.size = size;
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block.operation = operation;
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block.permissions = permissions;
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2014-08-03 05:16:47 +05:30
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2014-11-23 09:05:45 +05:30
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if (heap_linear_map.size() > 0) {
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const MemoryBlock last_block = heap_linear_map.rbegin()->second;
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2014-04-18 08:35:31 +05:30
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block.address = last_block.address + last_block.size;
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}
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2014-11-23 09:05:45 +05:30
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heap_linear_map[block.GetVirtualAddress()] = block;
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2014-04-18 08:35:31 +05:30
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return block.GetVirtualAddress();
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}
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2014-08-28 23:50:55 +05:30
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u8 Read8(const VAddr addr) {
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2014-07-25 05:16:10 +05:30
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u8 data = 0;
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Read<u8>(data, addr);
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2014-08-28 23:50:55 +05:30
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return data;
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2013-09-19 09:22:51 +05:30
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}
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2014-08-28 23:50:55 +05:30
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u16 Read16(const VAddr addr) {
|
2014-07-25 05:16:10 +05:30
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u16_le data = 0;
|
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|
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Read<u16_le>(data, addr);
|
2014-08-06 05:35:06 +05:30
|
|
|
|
|
|
|
// Check for 16-bit unaligned memory reads...
|
|
|
|
if (addr & 1) {
|
|
|
|
// TODO(bunnei): Implement 16-bit unaligned memory reads
|
2014-12-06 07:23:49 +05:30
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|
|
LOG_ERROR(HW_Memory, "16-bit unaligned memory reads are not implemented!");
|
2014-08-06 05:35:06 +05:30
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|
|
}
|
|
|
|
|
2014-07-25 05:16:10 +05:30
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|
|
return (u16)data;
|
2013-09-19 09:22:51 +05:30
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|
}
|
|
|
|
|
2014-08-28 23:50:55 +05:30
|
|
|
u32 Read32(const VAddr addr) {
|
2014-07-25 05:16:10 +05:30
|
|
|
u32_le data = 0;
|
|
|
|
Read<u32_le>(data, addr);
|
|
|
|
|
|
|
|
// Check for 32-bit unaligned memory reads...
|
|
|
|
if (addr & 3) {
|
|
|
|
// ARM allows for unaligned memory reads, however older ARM architectures read out memory
|
|
|
|
// from unaligned addresses in a shifted way. Our ARM CPU core (SkyEye) corrects for this,
|
|
|
|
// so therefore expects the memory to be read out in this manner.
|
|
|
|
// TODO(bunnei): Determine if this is necessary - perhaps it is OK to remove this from both
|
|
|
|
// SkyEye and here?
|
|
|
|
int shift = (addr & 3) * 8;
|
|
|
|
data = (data << shift) | (data >> (32 - shift));
|
|
|
|
}
|
|
|
|
return (u32)data;
|
2013-09-19 09:22:51 +05:30
|
|
|
}
|
|
|
|
|
2014-08-28 23:50:55 +05:30
|
|
|
u32 Read8_ZX(const VAddr addr) {
|
2014-04-02 03:48:02 +05:30
|
|
|
return (u32)Read8(addr);
|
2013-09-19 09:22:51 +05:30
|
|
|
}
|
|
|
|
|
2014-08-28 23:50:55 +05:30
|
|
|
u32 Read16_ZX(const VAddr addr) {
|
2014-04-02 03:48:02 +05:30
|
|
|
return (u32)Read16(addr);
|
2013-09-19 09:22:51 +05:30
|
|
|
}
|
|
|
|
|
2014-08-28 23:50:55 +05:30
|
|
|
void Write8(const VAddr addr, const u8 data) {
|
2014-07-05 09:16:16 +05:30
|
|
|
Write<u8>(addr, data);
|
2013-09-19 09:22:51 +05:30
|
|
|
}
|
|
|
|
|
2014-08-28 23:50:55 +05:30
|
|
|
void Write16(const VAddr addr, const u16 data) {
|
2014-07-05 09:16:16 +05:30
|
|
|
Write<u16_le>(addr, data);
|
2013-09-19 09:22:51 +05:30
|
|
|
}
|
|
|
|
|
2014-08-28 23:50:55 +05:30
|
|
|
void Write32(const VAddr addr, const u32 data) {
|
2014-07-05 09:16:16 +05:30
|
|
|
Write<u32_le>(addr, data);
|
2013-09-19 09:22:51 +05:30
|
|
|
}
|
|
|
|
|
2014-08-28 23:50:55 +05:30
|
|
|
void Write64(const VAddr addr, const u64 data) {
|
2014-07-05 09:16:16 +05:30
|
|
|
Write<u64_le>(addr, data);
|
2013-09-19 09:22:51 +05:30
|
|
|
}
|
|
|
|
|
2014-08-28 23:50:55 +05:30
|
|
|
void WriteBlock(const VAddr addr, const u8* data, const size_t size) {
|
2014-09-28 21:00:29 +05:30
|
|
|
u32 offset = 0;
|
2014-08-17 23:53:54 +05:30
|
|
|
while (offset < (size & ~3)) {
|
|
|
|
Write32(addr + offset, *(u32*)&data[offset]);
|
|
|
|
offset += 4;
|
|
|
|
}
|
2014-06-25 04:21:31 +05:30
|
|
|
|
2014-08-17 23:53:54 +05:30
|
|
|
if (size & 2) {
|
|
|
|
Write16(addr + offset, *(u16*)&data[offset]);
|
|
|
|
offset += 2;
|
|
|
|
}
|
2014-06-25 04:21:31 +05:30
|
|
|
|
|
|
|
if (size & 1)
|
|
|
|
Write8(addr + offset, data[offset]);
|
|
|
|
}
|
|
|
|
|
2013-09-19 09:22:51 +05:30
|
|
|
} // namespace
|