added initial support for hw.cpp module

src/core/core.vcxproj

@@ -152,7 +152,7 @@
     <ClCompile Include="src\elf\elf_reader.cpp" />
     <ClCompile Include="src\file_sys\directory_file_system.cpp" />
     <ClCompile Include="src\file_sys\meta_file_system.cpp" />
-    <ClCompile Include="src\hw\hardware.cpp" />
+    <ClCompile Include="src\hw\hw.cpp" />
     <ClCompile Include="src\loader.cpp" />
     <ClCompile Include="src\mem_map.cpp" />
     <ClCompile Include="src\mem_map_funcs.cpp" />

src/core/core.vcxproj.filters

@@ -46,7 +46,7 @@
     <ClCompile Include="src\arm\interpreter\arm_interpreter.cpp">
       <Filter>arm\interpreter</Filter>
     </ClCompile>
-    <ClCompile Include="src\hw\hardware.cpp">
+    <ClCompile Include="src\hw\hw.cpp">
       <Filter>hw</Filter>
     </ClCompile>
   </ItemGroup>

src/core/src/core.h

@@ -55,6 +55,9 @@ void Stop();
 /// Initialize the core
 int Init();
 
+/// Shutdown the core
+void Shutdown();
+
 ARMul_State* GetState();
 
 } // namespace

src/core/src/hw/hw.cpp

@@ -29,42 +29,34 @@ namespace HW {
 
 template <typename T>
 inline void Read(T &var, const u32 addr) {
-    // TODO: Figure out the fastest order of tests for both read and write (they are probably different).
-    // TODO: Make sure this represents the mirrors in a correct way.
-
-    // Could just do a base-relative read, too.... TODO
-
-    //if ((addr & 0x3E000000) == 0x08000000) {
-    //    var = *((const T*)&g_fcram[addr & MEM_FCRAM_MASK]);
-
-    //} else {
-    //    _assert_msg_(HW, false, "unknown hardware read");
-    //}
+    NOTICE_LOG(HW, "Hardware read from address %08X", addr);
 }
 
 template <typename T>
 inline void Write(u32 addr, const T data) {
-    //// ExeFS:/.code is loaded here:
-    //if ((addr & 0xFFF00000) == 0x00100000) {
-    //    // TODO(ShizZy): This is dumb... handle correctly. From 3DBrew:
-    //    // http://3dbrew.org/wiki/Memory_layout#ARM11_User-land_memory_regions
-    //    // The ExeFS:/.code is loaded here, executables must be loaded to the 0x00100000 region when
-    //    // the exheader "special memory" flag is clear. The 0x03F00000-byte size restriction only 
-    //    // applies when this flag is clear. Executables are usually loaded to 0x14000000 when the 
-    //    // exheader "special memory" flag is set, however this address can be arbitrary.
-    //    *(T*)&g_fcram[addr & MEM_FCRAM_MASK] = data;
-
-    //// Error out...
-    //} else {
-    //    _assert_msg_(HW, false, "unknown hardware write");
-    //}
+    NOTICE_LOG(HW, "Hardware write to address %08X", addr);
 }
 
+// Explicitly instantiate template functions because we aren't defining this in the header:
 
+template void Read<u64>(u64 &var, const u32 addr);
+template void Read<u32>(u32 &var, const u32 addr);
+template void Read<u16>(u16 &var, const u32 addr);
+template void Read<u8>(u8 &var, const u32 addr);
+
+template void Write<const u64>(u32 addr, const u64 data);
+template void Write<const u32>(u32 addr, const u32 data);
+template void Write<const u16>(u32 addr, const u16 data);
+template void Write<const u8>(u32 addr, const u8 data);
+
+/// Initialize hardware
 void Init() {
+    NOTICE_LOG(HW, "Hardware initialized OK");
 }
 
+/// Shutdown hardware
 void Shutdown() {
+    NOTICE_LOG(HW, "Hardware shutdown OK");
 }
 
 }

src/core/src/hw/hw.h

@@ -32,4 +32,10 @@ inline void Read(T &var, const u32 addr);
 template <typename T>
 inline void Write(u32 addr, const T data);
 
+/// Initialize hardware
+void Init();
+
+/// Shutdown hardware
+void Shutdown();
+
 } // namespace

src/core/src/mem_map_funcs.cpp

@@ -25,6 +25,7 @@
 #include "common.h"
 
 #include "mem_map.h"
+#include "hw/hw.h"
 
 namespace Memory {
 
@@ -32,10 +33,15 @@ template <typename T>
 inline void _Read(T &var, const u32 addr) {
     // TODO: Figure out the fastest order of tests for both read and write (they are probably different).
     // TODO: Make sure this represents the mirrors in a correct way.
-
     // Could just do a base-relative read, too.... TODO
 
-    if ((addr & 0x3E000000) == 0x08000000) {
+    // Hardware I/O register reads
+    // 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space
+    if ((addr & 0xFF000000) == 0x10000000 || (addr & 0xFF000000) == 0x1E000000) {
+        HW::Read<T>(var, addr);
+
+    // FCRAM virtual address reads
+    } else if ((addr & 0x3E000000) == 0x08000000) {
         var = *((const T*)&g_fcram[addr & MEM_FCRAM_MASK]);
 
     // Scratchpad memory
@@ -60,8 +66,14 @@ inline void _Read(T &var, const u32 addr) {
 
 template <typename T>
 inline void _Write(u32 addr, const T data) {
+    
+    // Hardware I/O register writes
+    // 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space
+    if ((addr & 0xFF000000) == 0x10000000 || (addr & 0xFF000000) == 0x1E000000) {
+        HW::Write<const T>(addr, data);
+    
     // ExeFS:/.code is loaded here:
-    if ((addr & 0xFFF00000) == 0x00100000) {
+    } else if ((addr & 0xFFF00000) == 0x00100000) {
         // TODO(ShizZy): This is dumb... handle correctly. From 3DBrew:
         // http://3dbrew.org/wiki/Memory_layout#ARM11_User-land_memory_regions
         // The ExeFS:/.code is loaded here, executables must be loaded to the 0x00100000 region when

src/core/src/system.cpp

@@ -23,6 +23,7 @@
 */
 
 #include "core.h"
+#include "hw/hw.h"
 #include "core_timing.h"
 #include "mem_map.h"
 #include "system.h"
@@ -38,6 +39,7 @@ void UpdateState(State state) {
 void Init(EmuWindow* emu_window) {
 	Core::Init();
 	Memory::Init();
+    HW::Init();
 	CoreTiming::Init();
 }
 
@@ -49,6 +51,8 @@ void RunLoopUntil(u64 global_cycles) {
 }
 
 void Shutdown() {
+    Core::Shutdown();
+    HW::Shutdown();
 	g_ctr_file_system.Shutdown();
 }