added config_mem module for HLE of firmware configuration memory settings

5 files changed, 100 insertions, 0 deletions

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 88cbabad..eb4fef38 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -19,6 +19,7 @@ set(SRCS    core.cpp
             file_sys/directory_file_system.cpp
             file_sys/meta_file_system.cpp
             hle/hle.cpp
+            hle/config_mem.cpp
             hle/coprocessor.cpp
             hle/syscall.cpp
             hle/service/apt.cpp
diff --git a/src/core/core.vcxproj b/src/core/core.vcxproj
index 7b895332..b56661e4 100644
--- a/src/core/core.vcxproj
+++ b/src/core/core.vcxproj
@@ -153,6 +153,7 @@
     <ClCompile Include="elf\elf_reader.cpp" />
     <ClCompile Include="file_sys\directory_file_system.cpp" />
     <ClCompile Include="file_sys\meta_file_system.cpp" />
+    <ClCompile Include="hle\config_mem.cpp" />
     <ClCompile Include="hle\coprocessor.cpp" />
     <ClCompile Include="hle\hle.cpp" />
     <ClCompile Include="hle\service\apt.cpp" />
@@ -193,6 +194,7 @@
     <ClInclude Include="file_sys\directory_file_system.h" />
     <ClInclude Include="file_sys\file_sys.h" />
     <ClInclude Include="file_sys\meta_file_system.h" />
+    <ClInclude Include="hle\config_mem.h" />
     <ClInclude Include="hle\coprocessor.h" />
     <ClInclude Include="hle\function_wrappers.h" />
     <ClInclude Include="hle\hle.h" />
diff --git a/src/core/core.vcxproj.filters b/src/core/core.vcxproj.filters
index fabe253e..5c947ec2 100644
--- a/src/core/core.vcxproj.filters
+++ b/src/core/core.vcxproj.filters
@@ -111,6 +111,9 @@
     <ClCompile Include="hle\coprocessor.cpp">
       <Filter>hle</Filter>
     </ClCompile>
+    <ClCompile Include="hle\config_mem.cpp">
+      <Filter>hle</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="arm\disassembler\arm_disasm.h">
@@ -217,6 +220,9 @@
     <ClInclude Include="hle\coprocessor.h">
       <Filter>hle</Filter>
     </ClInclude>
+    <ClInclude Include="hle\config_mem.h">
+      <Filter>hle</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Text Include="CMakeLists.txt" />
diff --git a/src/core/hle/config_mem.cpp b/src/core/hle/config_mem.cpp
new file mode 100644
index 00000000..48aa878c
--- /dev/null
+++ b/src/core/hle/config_mem.cpp
@@ -0,0 +1,70 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.  
+
+#include "common/common_types.h"
+#include "common/log.h"
+
+#include "core/hle/config_mem.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace ConfigMem {
+
+enum {
+    KERNEL_VERSIONREVISION  = 0x1FF80001,
+    KERNEL_VERSIONMINOR     = 0x1FF80002,
+    KERNEL_VERSIONMAJOR     = 0x1FF80003,
+    UPDATEFLAG              = 0x1FF80004,
+    NSTID                   = 0x1FF80008,
+    SYSCOREVER              = 0x1FF80010,
+    UNITINFO                = 0x1FF80014,
+    KERNEL_CTRSDKVERSION    = 0x1FF80018,
+    APPMEMTYPE              = 0x1FF80030,
+    APPMEMALLOC             = 0x1FF80040,
+    FIRM_VERSIONREVISION    = 0x1FF80061,
+    FIRM_VERSIONMINOR       = 0x1FF80062,
+    FIRM_VERSIONMAJOR       = 0x1FF80063,
+    FIRM_SYSCOREVER         = 0x1FF80064,
+    FIRM_CTRSDKVERSION      = 0x1FF80068,
+};
+
+template <typename T>
+inline void Read(T &var, const u32 addr) {
+    switch (addr) {
+
+    // Bit 0 set for Retail
+    case UNITINFO:
+        var = 0x00000001;
+        break;
+
+    // Set app memory size to 64MB?
+    case APPMEMALLOC:
+        var = 0x04000000;
+        break;
+
+    // Unknown - normally set to: 0x08000000 - (APPMEMALLOC + *0x1FF80048)
+    // (Total FCRAM size - APPMEMALLOC - *0x1FF80048)
+    case 0x1FF80044:
+        var = 0x08000000 - (0x04000000 + 0x1400000);
+        break;
+
+    // Unknown - normally set to: 0x1400000 (20MB)
+    case 0x1FF80048:
+        var = 0x1400000;
+        break;
+
+    default:
+        ERROR_LOG(HLE, "unknown ConfigMem::Read%d @ 0x%08X", sizeof(var) * 8, 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);
+
+
+} // namespace
diff --git a/src/core/hle/config_mem.h b/src/core/hle/config_mem.h
new file mode 100644
index 00000000..da396a3e
--- /dev/null
+++ b/src/core/hle/config_mem.h
@@ -0,0 +1,21 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.  
+
+#pragma once
+
+// Configuration memory stores various hardware/kernel configuration settings. This memory page is 
+// read-only for ARM11 processes. I'm guessing this would normally be written to by the firmware/
+// bootrom. Because we're not emulating this, and essentially just "stubbing" the functionality, I'm
+// putting this as a subset of HLE for now.
+
+#include "common/common_types.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace ConfigMem {
+
+template <typename T>
+inline void Read(T &var, const u32 addr);
+
+} // namespace