13 files changed, 403 insertions, 282 deletions

diff --git a/src/core/hle/config_mem.cpp b/src/core/hle/config_mem.cpp
new file mode 100644
index 000000000..48aa878cc
--- /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 000000000..da396a3e6
--- /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
diff --git a/src/core/hle/coprocessor.cpp b/src/core/hle/coprocessor.cpp
new file mode 100644
index 000000000..39674ee64
--- /dev/null
+++ b/src/core/hle/coprocessor.cpp
@@ -0,0 +1,34 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.  
+
+#include "core/hle/coprocessor.h"
+#include "core/hle/hle.h"
+#include "core/mem_map.h"
+#include "core/core.h"
+
+namespace HLE {
+
+/// Returns the coprocessor (in this case, syscore) command buffer pointer
+Addr GetThreadCommandBuffer() {
+    // Called on insruction: mrc p15, 0, r0, c13, c0, 3
+    return Memory::KERNEL_MEMORY_VADDR;
+}
+
+/// Call an MRC (move to ARM register from coprocessor) instruction in HLE
+s32 CallMRC(u32 instruction) {
+    CoprocessorOperation operation = (CoprocessorOperation)((instruction >> 20) & 0xFF);
+
+    switch (operation) {
+
+    case CALL_GET_THREAD_COMMAND_BUFFER:
+        return GetThreadCommandBuffer();
+
+    default:
+        //DEBUG_LOG(OSHLE, "unknown MRC call 0x%08X", instruction);
+        break;
+    }
+    return -1;
+}
+
+} // namespace
diff --git a/src/core/hle/mrc.h b/src/core/hle/coprocessor.h
index d6b9f162f..b08d6f3ee 100644
--- a/src/core/hle/mrc.h
+++ b/src/core/hle/coprocessor.h
@@ -8,13 +8,13 @@
 
 namespace HLE {
 
-/// MRC operations (ARM register from coprocessor), decoded as instr[20:27]
-enum ARM11_MRC_OPERATION {
+/// Coprocessor operations
+enum CoprocessorOperation {
     DATA_SYNCHRONIZATION_BARRIER    = 0xE0,
     CALL_GET_THREAD_COMMAND_BUFFER  = 0xE1,
 };
 
-/// Call an MRC operation in HLE
-u32 CallMRC(ARM11_MRC_OPERATION operation);
+/// Call an MRC (move to ARM register from coprocessor) instruction in HLE
+s32 CallMRC(u32 instruction);
 
 } // namespace
diff --git a/src/core/hle/function_wrappers.h b/src/core/hle/function_wrappers.h
index cab772004..d934eafb4 100644
--- a/src/core/hle/function_wrappers.h
+++ b/src/core/hle/function_wrappers.h
@@ -143,8 +143,8 @@ template<int func(u32, u32, u32, u32, u32)> void WrapI_UUUUU() {
     RETURN(retval);
 }
 
-template<int func()> void WrapI_V() {
-    int retval = func();
+template<int func(void*)> void WrapI_V() {
+    u32 retval = func(Memory::GetPointer(PARAM(0)));
     RETURN(retval);
 }
 
@@ -623,6 +623,10 @@ template<u32 func(const char *, const char *)> void WrapU_CC() {
     RETURN(retval);
 }
 
+template<void func(const char*)> void WrapV_C() {
+    func(Memory::GetCharPointer(PARAM(0)));
+}
+
 template<void func(const char *, int)> void WrapV_CI() {
     func(Memory::GetCharPointer(PARAM(0)), PARAM(1));
 }
@@ -701,18 +705,28 @@ template <int func(int, const char *, int)> void WrapI_ICI() {
 }
 
 template<int func(int, void *, void *, void *, void *, u32, int)> void WrapI_IVVVVUI(){
-  u32 retval = func(PARAM(0), Memory::GetPointer(PARAM(1)), Memory::GetPointer(PARAM(2)), Memory::GetPointer(PARAM(3)), Memory::GetPointer(PARAM(4)), PARAM(5), PARAM(6) );
-  RETURN(retval);
+    u32 retval = func(PARAM(0), Memory::GetPointer(PARAM(1)), Memory::GetPointer(PARAM(2)), Memory::GetPointer(PARAM(3)), Memory::GetPointer(PARAM(4)), PARAM(5), PARAM(6) );
+    RETURN(retval);
 }
 
 template<int func(int, const char *, u32, void *, int, int, int)> void WrapI_ICUVIII(){
-  u32 retval = func(PARAM(0), Memory::GetCharPointer(PARAM(1)), PARAM(2), Memory::GetPointer(PARAM(3)), PARAM(4), PARAM(5), PARAM(6));
-  RETURN(retval);
+    u32 retval = func(PARAM(0), Memory::GetCharPointer(PARAM(1)), PARAM(2), Memory::GetPointer(PARAM(3)), PARAM(4), PARAM(5), PARAM(6));
+    RETURN(retval);
 }
 
-template<int func(void *, u32, u32, u32, u32, u32)> void WrapI_VUUUUU(){
-  u32 retval = func(Memory::GetPointer(PARAM(0)), PARAM(1), PARAM(2), PARAM(3), PARAM(4), PARAM(5));
-  RETURN(retval);
+template<int func(void*, u32)> void WrapI_VU(){
+    u32 retval = func(Memory::GetPointer(PARAM(0)), PARAM(1));
+    RETURN(retval);
+}
+
+template<int func(void*, u32, void*, int)> void WrapI_VUVI(){
+    u32 retval = func(Memory::GetPointer(PARAM(0)), PARAM(1), Memory::GetPointer(PARAM(2)), PARAM(3));
+    RETURN(retval);
+}
+
+template<int func(void*, u32, u32, u32, u32, u32)> void WrapI_VUUUUU(){
+    u32 retval = func(Memory::GetPointer(PARAM(0)), PARAM(1), PARAM(2), PARAM(3), PARAM(4), PARAM(5));
+    RETURN(retval);
 }
 
 template<int func(u32, s64)> void WrapI_US64() {
diff --git a/src/core/hle/hle.cpp b/src/core/hle/hle.cpp
index aae9a3943..be151665b 100644
--- a/src/core/hle/hle.cpp
+++ b/src/core/hle/hle.cpp
@@ -15,49 +15,6 @@ namespace HLE {
 
 static std::vector<ModuleDef> g_module_db;
 
-u8* g_command_buffer = NULL;    ///< Command buffer used for sharing between appcore and syscore
-
-// Read from memory used by CTROS HLE functions
-template <typename T>
-inline void Read(T &var, const u32 addr) {
-    if (addr >= HLE::CMD_BUFFER_ADDR && addr < HLE::CMD_BUFFER_ADDR_END) {
-        var = *((const T*)&g_command_buffer[addr & CMD_BUFFER_MASK]);
-    } else {
-        ERROR_LOG(HLE, "unknown read from address %08X", addr);
-    }
-}
-
-// Write to memory used by CTROS HLE functions
-template <typename T>
-inline void Write(u32 addr, const T data) {
-    if (addr >= HLE::CMD_BUFFER_ADDR && addr < HLE::CMD_BUFFER_ADDR_END) {
-        *(T*)&g_command_buffer[addr & CMD_BUFFER_MASK] = data;
-    } else {
-        ERROR_LOG(HLE, "unknown write to address %08X", addr);
-    }
-}
-
-u8 *GetPointer(const u32 addr) {
-    if (addr >= HLE::CMD_BUFFER_ADDR && addr < HLE::CMD_BUFFER_ADDR_END) {
-        return g_command_buffer + (addr & CMD_BUFFER_MASK);
-    } else {
-        ERROR_LOG(HLE, "unknown pointer from address %08X", addr);
-        return 0;
-    }
-}
-
-// 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<u64>(u32 addr, const u64 data);
-template void Write<u32>(u32 addr, const u32 data);
-template void Write<u16>(u32 addr, const u16 data);
-template void Write<u8>(u32 addr, const u8 data);
-
 const FunctionDef* GetSyscallInfo(u32 opcode) {
     u32 func_num = opcode & 0xFFFFFF; // 8 bits
     if (func_num > 0xFF) {
@@ -91,8 +48,6 @@ void RegisterAllModules() {
 
 void Init() {
     Service::Init();
-
-    g_command_buffer = new u8[CMD_BUFFER_SIZE];
     
     RegisterAllModules();
 
@@ -102,8 +57,6 @@ void Init() {
 void Shutdown() {
     Service::Shutdown();
 
-    delete g_command_buffer;
-
     g_module_db.clear();
 
     NOTICE_LOG(HLE, "shutdown OK");
diff --git a/src/core/hle/hle.h b/src/core/hle/hle.h
index 907e2d741..42f37e29c 100644
--- a/src/core/hle/hle.h
+++ b/src/core/hle/hle.h
@@ -17,13 +17,6 @@
 
 namespace HLE {
 
-enum {
-    CMD_BUFFER_ADDR     = 0xA0010000,    ///< Totally arbitrary unused address space
-    CMD_BUFFER_SIZE     = 0x10000,
-    CMD_BUFFER_MASK     = (CMD_BUFFER_SIZE - 1),
-    CMD_BUFFER_ADDR_END = (CMD_BUFFER_ADDR + CMD_BUFFER_SIZE),
-};
-
 typedef u32 Addr;
 typedef void (*Func)();
 
@@ -39,20 +32,6 @@ struct ModuleDef {
     const FunctionDef*  func_table;
 };
 
-// Read from memory used by CTROS HLE functions
-template <typename T>
-inline void Read(T &var, const u32 addr);
-
-// Write to memory used by CTROS HLE functions
-template <typename T>
-inline void Write(u32 addr, const T data);
-
-u8* GetPointer(const u32 Address);
-
-inline const char* GetCharPointer(const u32 address) {
-    return (const char *)GetPointer(address);
-}
-
 void RegisterModule(std::string name, int num_functions, const FunctionDef *func_table);
 
 void CallSyscall(u32 opcode);
diff --git a/src/core/hle/mrc.cpp b/src/core/hle/mrc.cpp
deleted file mode 100644
index 5223be7c9..000000000
--- a/src/core/hle/mrc.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.  
-
-#include "core/hle/mrc.h"
-#include "core/hle/hle.h"
-#include "core/mem_map.h"
-#include "core/core.h"
-
-namespace HLE {
-
-enum {
-    CMD_GX_REQUEST_DMA  = 0x00000000,
-};
-
-/// Data synchronization barrier
-u32 DataSynchronizationBarrier(u32* command_buffer) {
-    u32 command = command_buffer[0];
-
-    switch (command) {
-
-    case CMD_GX_REQUEST_DMA:
-        {
-            u32* src = (u32*)Memory::GetPointer(command_buffer[1]);
-            u32* dst = (u32*)Memory::GetPointer(command_buffer[2]);
-            u32 size = command_buffer[3];
-            memcpy(dst, src, size);
-        }
-        break;
-
-    default:
-        ERROR_LOG(OSHLE, "MRC::DataSynchronizationBarrier unknown command 0x%08X", command);
-        return -1;
-    }
-
-    return 0;
-}
-
-/// Returns the coprocessor (in this case, syscore) command buffer pointer
-Addr GetThreadCommandBuffer() {
-    // Called on insruction: mrc p15, 0, r0, c13, c0, 3
-    // Returns an address in OSHLE memory for the CPU to read/write to
-    RETURN(CMD_BUFFER_ADDR);
-    return CMD_BUFFER_ADDR;
-}
-
-/// Call an MRC operation in HLE
-u32 CallMRC(ARM11_MRC_OPERATION operation) {
-    switch (operation) {
-
-    case DATA_SYNCHRONIZATION_BARRIER:
-        return DataSynchronizationBarrier((u32*)Memory::GetPointer(PARAM(0)));
-
-    case CALL_GET_THREAD_COMMAND_BUFFER:
-        return GetThreadCommandBuffer();
-
-    default:
-        ERROR_LOG(OSHLE, "unimplemented MRC operation 0x%02X", operation);
-        break;
-    }
-    return -1;
-}
-
-} // namespace
diff --git a/src/core/hle/service/apt.cpp b/src/core/hle/service/apt.cpp
index 4a1e8c992..709ac5493 100644
--- a/src/core/hle/service/apt.cpp
+++ b/src/core/hle/service/apt.cpp
@@ -18,7 +18,7 @@ void Initialize(Service::Interface* self) {
 }
 
 void GetLockHandle(Service::Interface* self) {
-    u32* cmd_buff = (u32*)HLE::GetPointer(HLE::CMD_BUFFER_ADDR + Service::kCommandHeaderOffset);
+    u32* cmd_buff = Service::GetCommandBuffer();
     cmd_buff[5] = 0x00000000; // TODO: This should be an actual mutex handle
 }
 
diff --git a/src/core/hle/service/gsp.cpp b/src/core/hle/service/gsp.cpp
index 88c1f1a0f..12c7dabcd 100644
--- a/src/core/hle/service/gsp.cpp
+++ b/src/core/hle/service/gsp.cpp
@@ -4,6 +4,7 @@
 
 
 #include "common/log.h"
+#include "common/bit_field.h"
 
 #include "core/mem_map.h"
 #include "core/hle/hle.h"
@@ -12,10 +13,51 @@
 #include "core/hw/lcd.h"
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/// GSP shared memory GX command buffer header
+union GX_CmdBufferHeader {
+    u32 hex;
+
+    // Current command index. This index is updated by GSP module after loading the command data, 
+    // right before the command is processed. When this index is updated by GSP module, the total 
+    // commands field is decreased by one as well.
+    BitField<0,8,u32>   index;
+    
+    // Total commands to process, must not be value 0 when GSP module handles commands. This must be
+    // <=15 when writing a command to shared memory. This is incremented by the application when 
+    // writing a command to shared memory, after increasing this value TriggerCmdReqQueue is only 
+    // used if this field is value 1.
+    BitField<8,8,u32>  number_commands;
+
+};
+
+/// Gets the address of the start (header) of a command buffer in GSP shared memory
+static inline u32 GX_GetCmdBufferAddress(u32 thread_id) {
+    return (0x10002000 + 0x800 + (thread_id * 0x200));
+}
+
+/// Gets a pointer to the start (header) of a command buffer in GSP shared memory
+static inline u8* GX_GetCmdBufferPointer(u32 thread_id, u32 offset=0) {
+    return Memory::GetPointer(GX_GetCmdBufferAddress(thread_id) + offset);
+}
+
+/// Finishes execution of a GSP command
+void GX_FinishCommand(u32 thread_id) {
+    GX_CmdBufferHeader* header = (GX_CmdBufferHeader*)GX_GetCmdBufferPointer(thread_id);
+    header->number_commands = header->number_commands - 1;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
 // Namespace GSP_GPU
 
 namespace GSP_GPU {
 
+u32 g_thread_id = 0;
+
+enum {
+    CMD_GX_REQUEST_DMA  = 0x00000000,
+};
+
 enum {
     REG_FRAMEBUFFER_1   = 0x00400468,
     REG_FRAMEBUFFER_2   = 0x00400494,
@@ -26,7 +68,7 @@ void ReadHWRegs(Service::Interface* self) {
     static const u32 framebuffer_1[] = {LCD::PADDR_VRAM_TOP_LEFT_FRAME1, LCD::PADDR_VRAM_TOP_RIGHT_FRAME1};
     static const u32 framebuffer_2[] = {LCD::PADDR_VRAM_TOP_LEFT_FRAME2, LCD::PADDR_VRAM_TOP_RIGHT_FRAME2};
 
-    u32* cmd_buff = (u32*)HLE::GetPointer(HLE::CMD_BUFFER_ADDR + Service::kCommandHeaderOffset);
+    u32* cmd_buff = Service::GetCommandBuffer();
     u32 reg_addr = cmd_buff[1];
     u32 size = cmd_buff[2];
     u32* dst = (u32*)Memory::GetPointer(cmd_buff[0x41]);
@@ -50,18 +92,37 @@ void ReadHWRegs(Service::Interface* self) {
         break;
 
     default:
-        ERROR_LOG(OSHLE, "GSP_GPU::ReadHWRegs unknown register read at address %08X", reg_addr);
+        ERROR_LOG(GSP, "ReadHWRegs unknown register read at address %08X", reg_addr);
     }
 
 }
 
 void RegisterInterruptRelayQueue(Service::Interface* self) {
-    u32* cmd_buff = (u32*)HLE::GetPointer(HLE::CMD_BUFFER_ADDR + Service::kCommandHeaderOffset);
+    u32* cmd_buff = Service::GetCommandBuffer();
     u32 flags = cmd_buff[1];
     u32 event_handle = cmd_buff[3]; // TODO(bunnei): Implement event handling
+    
+    cmd_buff[2] = g_thread_id;          // ThreadID
     cmd_buff[4] = self->NewHandle();
+}
+
+/// This triggers handling of the GX command written to the command buffer in shared memory.
+void TriggerCmdReqQueue(Service::Interface* self) {
+    GX_CmdBufferHeader* header = (GX_CmdBufferHeader*)GX_GetCmdBufferPointer(g_thread_id);
+    u32* cmd_buff = (u32*)GX_GetCmdBufferPointer(g_thread_id, 0x20 + (header->index * 0x20));
 
-    return;
+    switch (cmd_buff[0]) {
+
+    // GX request DMA - typically used for copying memory from GSP heap to VRAM
+    case CMD_GX_REQUEST_DMA:
+        memcpy(Memory::GetPointer(cmd_buff[2]), Memory::GetPointer(cmd_buff[1]), cmd_buff[3]);
+        break;
+
+    default:
+        ERROR_LOG(GSP, "TriggerCmdReqQueue unknown command 0x%08X", cmd_buff[0]);
+    }
+    
+    GX_FinishCommand(g_thread_id);
 }
 
 const Interface::FunctionInfo FunctionTable[] = {
@@ -76,7 +137,7 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x00090082, NULL,                          "InvalidateDataCache"},
     {0x000A0044, NULL,                          "RegisterInterruptEvents"},
     {0x000B0040, NULL,                          "SetLcdForceBlack"},
-    {0x000C0000, NULL,                          "TriggerCmdReqQueue"},
+    {0x000C0000, TriggerCmdReqQueue,            "TriggerCmdReqQueue"},
     {0x000D0140, NULL,                          "SetDisplayTransfer"},
     {0x000E0180, NULL,                          "SetTextureCopy"},
     {0x000F0200, NULL,                          "SetMemoryFill"},
diff --git a/src/core/hle/service/service.h b/src/core/hle/service/service.h
index b79dc9458..b260a290a 100644
--- a/src/core/hle/service/service.h
+++ b/src/core/hle/service/service.h
@@ -10,6 +10,7 @@
 
 #include "common/common.h"
 #include "common/common_types.h"
+#include "core/mem_map.h"
 #include "core/hle/syscall.h"
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -22,6 +23,15 @@ typedef s32 NativeUID;                          ///< Native handle for a service
 static const int kMaxPortSize           = 0x08; ///< Maximum size of a port name (8 characters)
 static const int kCommandHeaderOffset   = 0x80; ///< Offset into command buffer of header
 
+/**
+ * Returns a pointer to the command buffer in kernel memory
+ * @param offset Optional offset into command buffer
+ * @return Pointer to command buffer
+ */
+inline static u32* GetCommandBuffer(const int offset=0) {
+    return (u32*)Memory::GetPointer(Memory::KERNEL_MEMORY_VADDR + kCommandHeaderOffset + offset);
+}
+
 class Manager;
 
 /// Interface to a CTROS service
@@ -81,7 +91,7 @@ public:
      * @return Return result of svcSendSyncRequest passed back to user app
      */
     Syscall::Result Sync() {
-        u32* cmd_buff = (u32*)HLE::GetPointer(HLE::CMD_BUFFER_ADDR + kCommandHeaderOffset);
+        u32* cmd_buff = GetCommandBuffer();
         auto itr = m_functions.find(cmd_buff[0]);
 
         if (itr == m_functions.end()) {
diff --git a/src/core/hle/service/srv.cpp b/src/core/hle/service/srv.cpp
index 9437868c5..071741444 100644
--- a/src/core/hle/service/srv.cpp
+++ b/src/core/hle/service/srv.cpp
@@ -18,7 +18,7 @@ void Initialize(Service::Interface* self) {
 
 void GetServiceHandle(Service::Interface* self) {
     Syscall::Result res = 0;
-    u32* cmd_buff = (u32*)HLE::GetPointer(HLE::CMD_BUFFER_ADDR + Service::kCommandHeaderOffset);
+    u32* cmd_buff = Service::GetCommandBuffer();
 
     std::string port_name = std::string((const char*)&cmd_buff[1], 0, Service::kMaxPortSize);
     Service::Interface* service = Service::g_manager->FetchFromPortName(port_name);
diff --git a/src/core/hle/syscall.cpp b/src/core/hle/syscall.cpp
index df6412743..d47df6038 100644
--- a/src/core/hle/syscall.cpp
+++ b/src/core/hle/syscall.cpp
@@ -29,6 +29,9 @@ enum MapMemoryPermission {
 Result ControlMemory(u32 operation, u32 addr0, u32 addr1, u32 size, u32 permissions) {
     u32 virtual_address = 0x00000000;
 
+    DEBUG_LOG(SVC, "ControlMemory called operation=0x%08X, addr0=0x%08X, addr1=0x%08X, size=%08X, permissions=0x%08X", 
+        operation, addr0, addr1, size, permissions);
+
     switch (operation) {
 
     // Map normal heap memory
@@ -43,16 +46,18 @@ Result ControlMemory(u32 operation, u32 addr0, u32 addr1, u32 size, u32 permissi
 
     // Unknown ControlMemory operation
     default:
-        ERROR_LOG(OSHLE, "Unknown ControlMemory operation %08X", operation);
+        ERROR_LOG(SVC, "ControlMemory unknown operation=0x%08X", operation);
     }
 
     Core::g_app_core->SetReg(1, virtual_address);
+
     return 0;
 }
 
 /// Maps a memory block to specified address
 Result MapMemoryBlock(Handle memblock, u32 addr, u32 mypermissions, u32 otherpermission) {
-    int x = 0;
+    DEBUG_LOG(SVC, "MapMemoryBlock called memblock=0x08X, addr=0x%08X, mypermissions=0x%08X, otherpermission=%d", 
+        memblock, addr, mypermissions, otherpermission);
     switch (mypermissions) {
     case MEMORY_PERMISSION_NORMAL:
     case MEMORY_PERMISSION_NORMAL + 1:
@@ -60,20 +65,23 @@ Result MapMemoryBlock(Handle memblock, u32 addr, u32 mypermissions, u32 otherper
         Memory::MapBlock_Shared(memblock, addr, mypermissions);
         break;
     default:
-        ERROR_LOG(OSHLE, "Unknown MapMemoryBlock permissions %08X", mypermissions);
+        ERROR_LOG(OSHLE, "MapMemoryBlock unknown permissions=0x%08X", mypermissions);
     }
     return 0;
 }
 
 /// Connect to an OS service given the port name, returns the handle to the port to out
 Result ConnectToPort(void* out, const char* port_name) {
+    
     Service::Interface* service = Service::g_manager->FetchFromPortName(port_name);
     Core::g_app_core->SetReg(1, service->GetUID());
+    DEBUG_LOG(SVC, "ConnectToPort called port_name=%s", port_name);
     return 0;
 }
 
 /// Synchronize to an OS service
 Result SendSyncRequest(Handle session) {
+    DEBUG_LOG(SVC, "SendSyncRequest called session=0x%08X");
     Service::Interface* service = Service::g_manager->FetchFromUID(session);
     service->Sync();
     return 0;
@@ -82,142 +90,177 @@ Result SendSyncRequest(Handle session) {
 /// Close a handle
 Result CloseHandle(Handle handle) {
     // ImplementMe
+    DEBUG_LOG(SVC, "(UNIMPLEMENTED) CloseHandle called handle=0x%08X", handle);
     return 0;
 }
 
 /// Wait for a handle to synchronize, timeout after the specified nanoseconds
 Result WaitSynchronization1(Handle handle, s64 nanoseconds) {
     // ImplementMe
+    DEBUG_LOG(SVC, "(UNIMPLEMENTED) WaitSynchronization1 called handle=0x%08X, nanoseconds=%d", 
+        handle, nanoseconds);
+    return 0;
+}
+
+/// Create an address arbiter (to allocate access to shared resources)
+Result CreateAddressArbiter(void* arbiter) {
+    // ImplementMe
+    DEBUG_LOG(SVC, "(UNIMPLEMENTED) CreateAddressArbiter called");
+    Core::g_app_core->SetReg(1, 0xDEADBEEF);
+    return 0;
+}
+
+/// Used to output a message on a debug hardware unit - does nothing on a retail unit
+void OutputDebugString(const char* string) {
+    NOTICE_LOG(SVC, "## OSDEBUG: %08X %s", Core::g_app_core->GetPC(), string);
+}
+
+/// Get resource limit
+Result GetResourceLimit(void* resource_limit, Handle process) {
+    // With regards to proceess values:
+    // 0xFFFF8001 is a handle alias for the current KProcess, and 0xFFFF8000 is a handle alias for 
+    // the current KThread.
+    DEBUG_LOG(SVC, "(UNIMPLEMENTED) GetResourceLimit called process=0x%08X", process);
+    Core::g_app_core->SetReg(1, 0xDEADBEEF);
+    return 0;
+}
+
+/// Get resource limit current values
+Result GetResourceLimitCurrentValues(void* _values, Handle resource_limit, void* names, s32 name_count) {
+    //s64* values = (s64*)_values;
+    DEBUG_LOG(SVC, "(UNIMPLEMENTED) GetResourceLimitCurrentValues called resource_limit=%08X, names=%s, name_count=%d",
+        resource_limit, names, name_count);
+    Memory::Write32(Core::g_app_core->GetReg(0), 0); // Normmatt: Set used memory to 0 for now
     return 0;
 }
 
 const HLE::FunctionDef Syscall_Table[] = {
-    {0x00,  NULL,                               "Unknown"},
-    {0x01,  WrapI_UUUUU<ControlMemory>,         "ControlMemory"},
-    {0x02,  NULL,                               "QueryMemory"},
-    {0x03,  NULL,                               "ExitProcess"},
-    {0x04,  NULL,                               "GetProcessAffinityMask"},
-    {0x05,  NULL,                               "SetProcessAffinityMask"},
-    {0x06,  NULL,                               "GetProcessIdealProcessor"},
-    {0x07,  NULL,                               "SetProcessIdealProcessor"},
-    {0x08,  NULL,                               "CreateThread"},
-    {0x09,  NULL,                               "ExitThread"},
-    {0x0A,  NULL,                               "SleepThread"},
-    {0x0B,  NULL,                               "GetThreadPriority"},
-    {0x0C,  NULL,                               "SetThreadPriority"},
-    {0x0D,  NULL,                               "GetThreadAffinityMask"},
-    {0x0E,  NULL,                               "SetThreadAffinityMask"},
-    {0x0F,  NULL,                               "GetThreadIdealProcessor"},
-    {0x10,  NULL,                               "SetThreadIdealProcessor"},
-    {0x11,  NULL,                               "GetCurrentProcessorNumber"},
-    {0x12,  NULL,                               "Run"},
-    {0x13,  NULL,                               "CreateMutex"},
-    {0x14,  NULL,                               "ReleaseMutex"},
-    {0x15,  NULL,                               "CreateSemaphore"},
-    {0x16,  NULL,                               "ReleaseSemaphore"},
-    {0x17,  NULL,                               "CreateEvent"},
-    {0x18,  NULL,                               "SignalEvent"},
-    {0x19,  NULL,                               "ClearEvent"},
-    {0x1A,  NULL,                               "CreateTimer"},
-    {0x1B,  NULL,                               "SetTimer"},
-    {0x1C,  NULL,                               "CancelTimer"},
-    {0x1D,  NULL,                               "ClearTimer"},
-    {0x1E,  NULL,                               "CreateMemoryBlock"},
-    {0x1F,  WrapI_UUUU<MapMemoryBlock>,         "MapMemoryBlock"},
-    {0x20,  NULL,                               "UnmapMemoryBlock"},
-    {0x21,  NULL,                               "CreateAddressArbiter"},
-    {0x22,  NULL,                               "ArbitrateAddress"},
-    {0x23,  WrapI_U<CloseHandle>,               "CloseHandle"},
-    {0x24,  WrapI_US64<WaitSynchronization1>,   "WaitSynchronization1"},
-    {0x25,  NULL,                               "WaitSynchronizationN"},
-    {0x26,  NULL,                               "SignalAndWait"},
-    {0x27,  NULL,                               "DuplicateHandle"},
-    {0x28,  NULL,                               "GetSystemTick"},
-    {0x29,  NULL,                               "GetHandleInfo"},
-    {0x2A,  NULL,                               "GetSystemInfo"},
-    {0x2B,  NULL,                               "GetProcessInfo"},
-    {0x2C,  NULL,                               "GetThreadInfo"},
-    {0x2D,  WrapI_VC<ConnectToPort>,            "ConnectToPort"},
-    {0x2E,  NULL,                               "SendSyncRequest1"},
-    {0x2F,  NULL,                               "SendSyncRequest2"},
-    {0x30,  NULL,                               "SendSyncRequest3"},
-    {0x31,  NULL,                               "SendSyncRequest4"},
-    {0x32,  WrapI_U<SendSyncRequest>,           "SendSyncRequest"},
-    {0x33,  NULL,                               "OpenProcess"},
-    {0x34,  NULL,                               "OpenThread"},
-    {0x35,  NULL,                               "GetProcessId"},
-    {0x36,  NULL,                               "GetProcessIdOfThread"},
-    {0x37,  NULL,                               "GetThreadId"},
-    {0x38,  NULL,                               "GetResourceLimit"},
-    {0x39,  NULL,                               "GetResourceLimitLimitValues"},
-    {0x3A,  NULL,                               "GetResourceLimitCurrentValues"},
-    {0x3B,  NULL,                               "GetThreadContext"},
-    {0x3C,  NULL,                               "Break"},
-    {0x3D,  NULL,                               "OutputDebugString"},
-    {0x3E,  NULL,                               "ControlPerformanceCounter"},
-    {0x3F,  NULL,                               "Unknown"},
-    {0x40,  NULL,                               "Unknown"},
-    {0x41,  NULL,                               "Unknown"},
-    {0x42,  NULL,                               "Unknown"},
-    {0x43,  NULL,                               "Unknown"},
-    {0x44,  NULL,                               "Unknown"},
-    {0x45,  NULL,                               "Unknown"},
-    {0x46,  NULL,                               "Unknown"},
-    {0x47,  NULL,                               "CreatePort"},
-    {0x48,  NULL,                               "CreateSessionToPort"},
-    {0x49,  NULL,                               "CreateSession"},
-    {0x4A,  NULL,                               "AcceptSession"},
-    {0x4B,  NULL,                               "ReplyAndReceive1"},
-    {0x4C,  NULL,                               "ReplyAndReceive2"},
-    {0x4D,  NULL,                               "ReplyAndReceive3"},
-    {0x4E,  NULL,                               "ReplyAndReceive4"},
-    {0x4F,  NULL,                               "ReplyAndReceive"},
-    {0x50,  NULL,                               "BindInterrupt"},
-    {0x51,  NULL,                               "UnbindInterrupt"},
-    {0x52,  NULL,                               "InvalidateProcessDataCache"},
-    {0x53,  NULL,                               "StoreProcessDataCache"},
-    {0x54,  NULL,                               "FlushProcessDataCache"},
-    {0x55,  NULL,                               "StartInterProcessDma"},
-    {0x56,  NULL,                               "StopDma"},
-    {0x57,  NULL,                               "GetDmaState"},
-    {0x58,  NULL,                               "RestartDma"},
-    {0x59,  NULL,                               "Unknown"},
-    {0x5A,  NULL,                               "Unknown"},
-    {0x5B,  NULL,                               "Unknown"},
-    {0x5C,  NULL,                               "Unknown"},
-    {0x5D,  NULL,                               "Unknown"},
-    {0x5E,  NULL,                               "Unknown"},
-    {0x5F,  NULL,                               "Unknown"},
-    {0x60,  NULL,                               "DebugActiveProcess"},
-    {0x61,  NULL,                               "BreakDebugProcess"},
-    {0x62,  NULL,                               "TerminateDebugProcess"},
-    {0x63,  NULL,                               "GetProcessDebugEvent"},
-    {0x64,  NULL,                               "ContinueDebugEvent"},
-    {0x65,  NULL,                               "GetProcessList"},
-    {0x66,  NULL,                               "GetThreadList"},
-    {0x67,  NULL,                               "GetDebugThreadContext"},
-    {0x68,  NULL,                               "SetDebugThreadContext"},
-    {0x69,  NULL,                               "QueryDebugProcessMemory"},
-    {0x6A,  NULL,                               "ReadProcessMemory"},
-    {0x6B,  NULL,                               "WriteProcessMemory"},
-    {0x6C,  NULL,                               "SetHardwareBreakPoint"},
-    {0x6D,  NULL,                               "GetDebugThreadParam"},
-    {0x6E,  NULL,                               "Unknown"},
-    {0x6F,  NULL,                               "Unknown"},
-    {0x70,  NULL,                               "ControlProcessMemory"},
-    {0x71,  NULL,                               "MapProcessMemory"},
-    {0x72,  NULL,                               "UnmapProcessMemory"},
-    {0x73,  NULL,                               "Unknown"},
-    {0x74,  NULL,                               "Unknown"},
-    {0x75,  NULL,                               "Unknown"},
-    {0x76,  NULL,                               "TerminateProcess"},
-    {0x77,  NULL,                               "Unknown"},
-    {0x78,  NULL,                               "CreateResourceLimit"},
-    {0x79,  NULL,                               "Unknown"},
-    {0x7A,  NULL,                               "Unknown"},
-    {0x7B,  NULL,                               "Unknown"},
-    {0x7C,  NULL,                               "KernelSetState"},
-    {0x7D,  NULL,                               "QueryProcessMemory"},
+    {0x00,  NULL,                                       "Unknown"},
+    {0x01,  WrapI_UUUUU<ControlMemory>,                 "ControlMemory"},
+    {0x02,  NULL,                                       "QueryMemory"},
+    {0x03,  NULL,                                       "ExitProcess"},
+    {0x04,  NULL,                                       "GetProcessAffinityMask"},
+    {0x05,  NULL,                                       "SetProcessAffinityMask"},
+    {0x06,  NULL,                                       "GetProcessIdealProcessor"},
+    {0x07,  NULL,                                       "SetProcessIdealProcessor"},
+    {0x08,  NULL,                                       "CreateThread"},
+    {0x09,  NULL,                                       "ExitThread"},
+    {0x0A,  NULL,                                       "SleepThread"},
+    {0x0B,  NULL,                                       "GetThreadPriority"},
+    {0x0C,  NULL,                                       "SetThreadPriority"},
+    {0x0D,  NULL,                                       "GetThreadAffinityMask"},
+    {0x0E,  NULL,                                       "SetThreadAffinityMask"},
+    {0x0F,  NULL,                                       "GetThreadIdealProcessor"},
+    {0x10,  NULL,                                       "SetThreadIdealProcessor"},
+    {0x11,  NULL,                                       "GetCurrentProcessorNumber"},
+    {0x12,  NULL,                                       "Run"},
+    {0x13,  NULL,                                       "CreateMutex"},
+    {0x14,  NULL,                                       "ReleaseMutex"},
+    {0x15,  NULL,                                       "CreateSemaphore"},
+    {0x16,  NULL,                                       "ReleaseSemaphore"},
+    {0x17,  NULL,                                       "CreateEvent"},
+    {0x18,  NULL,                                       "SignalEvent"},
+    {0x19,  NULL,                                       "ClearEvent"},
+    {0x1A,  NULL,                                       "CreateTimer"},
+    {0x1B,  NULL,                                       "SetTimer"},
+    {0x1C,  NULL,                                       "CancelTimer"},
+    {0x1D,  NULL,                                       "ClearTimer"},
+    {0x1E,  NULL,                                       "CreateMemoryBlock"},
+    {0x1F,  WrapI_UUUU<MapMemoryBlock>,                 "MapMemoryBlock"},
+    {0x20,  NULL,                                       "UnmapMemoryBlock"},
+    {0x21,  WrapI_V<CreateAddressArbiter>,              "CreateAddressArbiter"},
+    {0x22,  NULL,                                       "ArbitrateAddress"},
+    {0x23,  WrapI_U<CloseHandle>,                       "CloseHandle"},
+    {0x24,  WrapI_US64<WaitSynchronization1>,           "WaitSynchronization1"},
+    {0x25,  NULL,                                       "WaitSynchronizationN"},
+    {0x26,  NULL,                                       "SignalAndWait"},
+    {0x27,  NULL,                                       "DuplicateHandle"},
+    {0x28,  NULL,                                       "GetSystemTick"},
+    {0x29,  NULL,                                       "GetHandleInfo"},
+    {0x2A,  NULL,                                       "GetSystemInfo"},
+    {0x2B,  NULL,                                       "GetProcessInfo"},
+    {0x2C,  NULL,                                       "GetThreadInfo"},
+    {0x2D,  WrapI_VC<ConnectToPort>,                    "ConnectToPort"},
+    {0x2E,  NULL,                                       "SendSyncRequest1"},
+    {0x2F,  NULL,                                       "SendSyncRequest2"},
+    {0x30,  NULL,                                       "SendSyncRequest3"},
+    {0x31,  NULL,                                       "SendSyncRequest4"},
+    {0x32,  WrapI_U<SendSyncRequest>,                   "SendSyncRequest"},
+    {0x33,  NULL,                                       "OpenProcess"},
+    {0x34,  NULL,                                       "OpenThread"},
+    {0x35,  NULL,                                       "GetProcessId"},
+    {0x36,  NULL,                                       "GetProcessIdOfThread"},
+    {0x37,  NULL,                                       "GetThreadId"},
+    {0x38,  WrapI_VU<GetResourceLimit>,                 "GetResourceLimit"},
+    {0x39,  NULL,                                       "GetResourceLimitLimitValues"},
+    {0x3A,  WrapI_VUVI<GetResourceLimitCurrentValues>,  "GetResourceLimitCurrentValues"},
+    {0x3B,  NULL,                                       "GetThreadContext"},
+    {0x3C,  NULL,                                       "Break"},
+    {0x3D,  WrapV_C<OutputDebugString>,                 "OutputDebugString"},
+    {0x3E,  NULL,                                       "ControlPerformanceCounter"},
+    {0x3F,  NULL,                                       "Unknown"},
+    {0x40,  NULL,                                       "Unknown"},
+    {0x41,  NULL,                                       "Unknown"},
+    {0x42,  NULL,                                       "Unknown"},
+    {0x43,  NULL,                                       "Unknown"},
+    {0x44,  NULL,                                       "Unknown"},
+    {0x45,  NULL,                                       "Unknown"},
+    {0x46,  NULL,                                       "Unknown"},
+    {0x47,  NULL,                                       "CreatePort"},
+    {0x48,  NULL,                                       "CreateSessionToPort"},
+    {0x49,  NULL,                                       "CreateSession"},
+    {0x4A,  NULL,                                       "AcceptSession"},
+    {0x4B,  NULL,                                       "ReplyAndReceive1"},
+    {0x4C,  NULL,                                       "ReplyAndReceive2"},
+    {0x4D,  NULL,                                       "ReplyAndReceive3"},
+    {0x4E,  NULL,                                       "ReplyAndReceive4"},
+    {0x4F,  NULL,                                       "ReplyAndReceive"},
+    {0x50,  NULL,                                       "BindInterrupt"},
+    {0x51,  NULL,                                       "UnbindInterrupt"},
+    {0x52,  NULL,                                       "InvalidateProcessDataCache"},
+    {0x53,  NULL,                                       "StoreProcessDataCache"},
+    {0x54,  NULL,                                       "FlushProcessDataCache"},
+    {0x55,  NULL,                                       "StartInterProcessDma"},
+    {0x56,  NULL,                                       "StopDma"},
+    {0x57,  NULL,                                       "GetDmaState"},
+    {0x58,  NULL,                                       "RestartDma"},
+    {0x59,  NULL,                                       "Unknown"},
+    {0x5A,  NULL,                                       "Unknown"},
+    {0x5B,  NULL,                                       "Unknown"},
+    {0x5C,  NULL,                                       "Unknown"},
+    {0x5D,  NULL,                                       "Unknown"},
+    {0x5E,  NULL,                                       "Unknown"},
+    {0x5F,  NULL,                                       "Unknown"},
+    {0x60,  NULL,                                       "DebugActiveProcess"},
+    {0x61,  NULL,                                       "BreakDebugProcess"},
+    {0x62,  NULL,                                       "TerminateDebugProcess"},
+    {0x63,  NULL,                                       "GetProcessDebugEvent"},
+    {0x64,  NULL,                                       "ContinueDebugEvent"},
+    {0x65,  NULL,                                       "GetProcessList"},
+    {0x66,  NULL,                                       "GetThreadList"},
+    {0x67,  NULL,                                       "GetDebugThreadContext"},
+    {0x68,  NULL,                                       "SetDebugThreadContext"},
+    {0x69,  NULL,                                       "QueryDebugProcessMemory"},
+    {0x6A,  NULL,                                       "ReadProcessMemory"},
+    {0x6B,  NULL,                                       "WriteProcessMemory"},
+    {0x6C,  NULL,                                       "SetHardwareBreakPoint"},
+    {0x6D,  NULL,                                       "GetDebugThreadParam"},
+    {0x6E,  NULL,                                       "Unknown"},
+    {0x6F,  NULL,                                       "Unknown"},
+    {0x70,  NULL,                                       "ControlProcessMemory"},
+    {0x71,  NULL,                                       "MapProcessMemory"},
+    {0x72,  NULL,                                       "UnmapProcessMemory"},
+    {0x73,  NULL,                                       "Unknown"},
+    {0x74,  NULL,                                       "Unknown"},
+    {0x75,  NULL,                                       "Unknown"},
+    {0x76,  NULL,                                       "TerminateProcess"},
+    {0x77,  NULL,                                       "Unknown"},
+    {0x78,  NULL,                                       "CreateResourceLimit"},
+    {0x79,  NULL,                                       "Unknown"},
+    {0x7A,  NULL,                                       "Unknown"},
+    {0x7B,  NULL,                                       "Unknown"},
+    {0x7C,  NULL,                                       "KernelSetState"},
+    {0x7D,  NULL,                                       "QueryProcessMemory"},
 };
 
 void Register() {