diff --git a/os_functions.c b/os_functions.c
index 45d6a20..adde390 100644
--- a/os_functions.c
+++ b/os_functions.c
@@ -42,6 +42,15 @@ EXPORT_DECL(s32, OSForceFullRelaunch, void);
 //! Thread functions
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 EXPORT_DECL(s32, OSCreateThread, OSThread *thread, s32 (*callback)(s32, void*), s32 argc, void *args, u32 stack, u32 stack_size, s32 priority, u32 attr);
+
+EXPORT_DECL(void, OSEnableInterrupts, void);
+EXPORT_DECL(void, __OSClearAndEnableInterrupt, void);
+EXPORT_DECL(s32, OSIsInterruptEnabled, void);
+EXPORT_DECL(s32, OSIsDebuggerPresent, void);
+EXPORT_DECL(void, OSRestoreInterrupts, void);
+EXPORT_DECL(void, OSSetDABR, s32, s32, s32, s32);
+EXPORT_DECL(void, OSSetIABR, s32, s32);
+
 EXPORT_DECL(s32, OSResumeThread, OSThread *thread);
 EXPORT_DECL(s32, OSSuspendThread, OSThread *thread);
 EXPORT_DECL(s32, OSIsThreadTerminated, OSThread *thread);
@@ -91,6 +100,7 @@ EXPORT_DECL(void, DCStoreRange, const void *addr, u32 length);
 EXPORT_DECL(void, ICInvalidateRange, const void *addr, u32 length);
 EXPORT_DECL(void*, OSEffectiveToPhysical, const void*);
 EXPORT_DECL(void*, __OSPhysicalToEffectiveUncached, const void*);
+EXPORT_DECL(s32, __OSValidateAddressSpaceRange, s32, void*, s32);
 EXPORT_DECL(s32, __os_snprintf, char* s, s32 n, const char * format, ...);
 EXPORT_DECL(s32 *, __gh_errno_ptr, void);
 
@@ -104,6 +114,11 @@ EXPORT_DECL(s32, OSScreenPutFontEx, u32 bufferNum, u32 posX, u32 posY, const cha
 EXPORT_DECL(s32, OSScreenEnableEx, u32 bufferNum, s32 enable);
 EXPORT_DECL(u32, OSScreenPutPixelEx, u32 bufferNum, u32 posX, u32 posY, u32 color);
 
+EXPORT_DECL(void, DisassemblePPCRange, void *, void *, DisasmReport, DisasmGetSym, u32);
+EXPORT_DECL(bool, DisassemblePPCOpcode, u32 *, char *, u32, DisasmGetSym, u32);
+EXPORT_DECL(void*, OSGetSymbolName, u32, u8 *, u32);
+EXPORT_DECL(int, OSIsDebuggerInitialized, void);
+
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 //! Memory functions
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
@@ -121,7 +136,7 @@ EXPORT_DECL(void *, MEMDestroyExpHeap, s32 heap);
 EXPORT_DECL(void, MEMFreeToExpHeap, s32 heap, void* ptr);
 EXPORT_DECL(void *, OSAllocFromSystem, u32 size, s32 alignment);
 EXPORT_DECL(void, OSFreeToSystem, void *addr);
-EXPORT_DECL(s32, OSIsAddressValid, void *ptr);
+EXPORT_DECL(s32, OSIsAddressValid, const void *ptr);
 
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 //! MCP functions
@@ -241,6 +256,7 @@ void InitOSFunctionPointers(void)
     OS_FIND_EXPORT(coreinit_handle, ICInvalidateRange);
     OS_FIND_EXPORT(coreinit_handle, OSEffectiveToPhysical);
     OS_FIND_EXPORT(coreinit_handle, __OSPhysicalToEffectiveUncached);
+    OS_FIND_EXPORT(coreinit_handle, __OSValidateAddressSpaceRange);
     OS_FIND_EXPORT(coreinit_handle, __os_snprintf);
     OS_FIND_EXPORT(coreinit_handle, __gh_errno_ptr);
 
@@ -255,9 +271,22 @@ void InitOSFunctionPointers(void)
     OS_FIND_EXPORT(coreinit_handle, OSScreenPutFontEx);
     OS_FIND_EXPORT(coreinit_handle, OSScreenEnableEx);
     OS_FIND_EXPORT(coreinit_handle, OSScreenPutPixelEx);
+
+    OS_FIND_EXPORT(coreinit_handle, DisassemblePPCRange);
+	OS_FIND_EXPORT(coreinit_handle, DisassemblePPCOpcode);
+	OS_FIND_EXPORT(coreinit_handle, OSGetSymbolName);
+    OS_FIND_EXPORT(coreinit_handle, OSIsDebuggerInitialized);
     //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
     //! Thread functions
     //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    OS_FIND_EXPORT(coreinit_handle, OSEnableInterrupts);
+	OS_FIND_EXPORT(coreinit_handle, __OSClearAndEnableInterrupt);
+	OS_FIND_EXPORT(coreinit_handle, OSIsInterruptEnabled);
+	OS_FIND_EXPORT(coreinit_handle, OSIsDebuggerPresent);
+	OS_FIND_EXPORT(coreinit_handle, OSRestoreInterrupts);
+	OS_FIND_EXPORT(coreinit_handle, OSSetDABR);
+    OS_FIND_EXPORT(coreinit_handle, OSSetIABR);
+
     OS_FIND_EXPORT(coreinit_handle, OSCreateThread);
     OS_FIND_EXPORT(coreinit_handle, OSResumeThread);
     OS_FIND_EXPORT(coreinit_handle, OSSuspendThread);
diff --git a/os_functions.h b/os_functions.h
index c8be145..e7b6d06 100644
--- a/os_functions.h
+++ b/os_functions.h
@@ -32,6 +32,36 @@
 extern "C" {
 #endif
 
+/* Disassembler */
+typedef void (*DisasmReport)(char *outputBuffer, ...);
+
+typedef void *(*DisasmGetSym)(u32 addr, u8 *symbolName, u32 nameBufSize);
+
+#define PPC_DISASM_MAX_BUFFER 64
+
+#define PPC_DISASM_DEFAULT     0x00000000  // use defaults
+#define PPC_DISASM_SIMPLIFY    0x00000001  // use simplified mnemonics
+#define PPC_DISASM_REG_SPACES  0x00000020  // emit spaces between registers
+#define PPC_DISASM_EMIT_DISASM 0x00000040  // emit only disassembly
+#define PPC_DISASM_EMIT_ADDR   0x00000080  // emit only addresses + disassembly
+#define PPC_DISASM_EMIT_FUNCS  0x00000100  // emit function names before and during disassembly
+
+/* zlib */
+
+/*#define Z_NO_COMPRESSION         0
+#define Z_BEST_SPEED             1
+#define Z_BEST_COMPRESSION       9
+#define Z_DEFAULT_COMPRESSION  (-1)
+#define Z_OK            0
+#define Z_STREAM_END    1
+#define Z_NEED_DICT     2
+#define Z_ERRNO        (-1)
+#define Z_STREAM_ERROR (-2)
+#define Z_DATA_ERROR   (-3)
+#define Z_MEM_ERROR    (-4)
+#define Z_BUF_ERROR    (-5)
+#define Z_VERSION_ERROR (-6)*/
+
 #define BUS_SPEED                       248625000
 #define SECS_TO_TICKS(sec)              (((unsigned long long)(sec)) * (BUS_SPEED/4))
 #define MILLISECS_TO_TICKS(msec)        (SECS_TO_TICKS(msec) / 1000)
@@ -81,6 +111,16 @@ extern s32 (* OSForceFullRelaunch)(void);
 //! Thread functions
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 extern s32 (* OSCreateThread)(OSThread *thread, s32 (*callback)(s32, void*), s32 argc, void *args, u32 stack, u32 stack_size, s32 priority, u32 attr);
+
+extern void (*OSEnableInterrupts)(void);
+extern void (*__OSClearAndEnableInterrupt)(void);
+extern s32 (*OSIsInterruptEnabled)(void);
+extern s32 (*OSIsDebuggerPresent)(void);
+
+extern void (*OSRestoreInterrupts)(void);
+extern void (*OSSetDABR)(s32, s32, s32, s32);
+extern void (*OSSetIABR)(s32, s32);
+
 extern s32 (* OSResumeThread)(OSThread *thread);
 extern s32 (* OSSuspendThread)(OSThread *thread);
 extern s32 (* OSIsThreadTerminated)(OSThread *thread);
@@ -129,6 +169,7 @@ extern void (* DCStoreRange)(const void *addr, u32 length);
 extern void (* ICInvalidateRange)(const void *addr, u32 length);
 extern void* (* OSEffectiveToPhysical)(const void*);
 extern void* (* __OSPhysicalToEffectiveUncached)(const void*);
+extern s32 (* __OSValidateAddressSpaceRange)(s32, void*, s32);
 extern s32 (* __os_snprintf)(char* s, s32 n, const char * format, ...);
 extern s32 * (* __gh_errno_ptr)(void);
 
@@ -147,6 +188,11 @@ extern void * (* OSSetExceptionCallback)(u8 exceptionType, exception_callback ne
 extern void * (* OSSetExceptionCallbackEx)(s32 unknwn,u8 exceptionType, exception_callback newCallback);
 extern void (* OSLoadContext)(OSContext * context);
 
+extern void (*DisassemblePPCRange)(void *rangeStart, void *rangeEnd, DisasmReport disasmReport, DisasmGetSym disasmGetSym, u32 disasmOptions);
+extern bool (*DisassemblePPCOpcode)(u32 *opcode, char *outputBuffer, u32 bufferSize, DisasmGetSym disasmGetSym, u32 disasmOptions);
+extern void *(*OSGetSymbolName)(u32 addr, u8 *symbolName, u32 nameBufSize);
+extern int (*OSIsDebuggerInitialized)(void);
+
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 //! Memory functions
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
@@ -164,7 +210,7 @@ extern void *(* MEMDestroyExpHeap)(s32 heap);
 extern void (* MEMFreeToExpHeap)(s32 heap, void* ptr);
 extern void* (* OSAllocFromSystem)(u32 size, s32 alignment);
 extern void (* OSFreeToSystem)(void *addr);
-extern s32 (* OSIsAddressValid)(void *ptr);
+extern s32 (* OSIsAddressValid)(const void *ptr);
 
 //!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 //! MCP functions
diff --git a/os_types.h b/os_types.h
index d4956e7..75c62ca 100644
--- a/os_types.h
+++ b/os_types.h
@@ -17,6 +17,16 @@ extern "C" {
 #define OS_EXCEPTION_MODE_THREAD 1
 #define OS_EXCEPTION_MODE_GLOBAL_ALL_CORES 4
 
+#define OS_THREAD_ATTR_AFFINITY_NONE    0x0007u        // affinity to run on every core
+#define OS_THREAD_ATTR_AFFINITY_CORE0   0x0001u        // run only on core0
+#define OS_THREAD_ATTR_AFFINITY_CORE1   0x0002u        // run only on core1
+#define OS_THREAD_ATTR_AFFINITY_CORE2   0x0004u        // run only on core2
+#define OS_THREAD_ATTR_DETACH           0x0008u        // detached
+#define OS_THREAD_ATTR_PINNED_AFFINITY  0x0010u        // pinned (affinitized) to a single core
+#define OS_THREAD_ATTR_CHECK_STACK_USE  0x0040u        // check for stack usage
+#define OS_THREAD_ATTR_NAME_SENT        0x0080u        // debugger has seen the name
+#define OS_THREAD_ATTR_LAST (OS_THREAD_ATTR_DETACH | OS_THREAD_ATTR_PINNED_AFFINITY | OS_THREAD_ATTR_AFFINITY_NONE)
+
 typedef struct OSThread_ OSThread;
 
 struct OSThreadLink {
diff --git a/socket_functions.h b/socket_functions.h
index e4a666c..ce95e3e 100644
--- a/socket_functions.h
+++ b/socket_functions.h
@@ -32,6 +32,8 @@ extern u32 nsysnet_handle;
 
 #include <gctypes.h>
 
+extern u32 hostIpAddress;
+
 #define INADDR_ANY      0
 #define INADDR_BROADCAST 0xFFFFFFFF
 
@@ -61,7 +63,6 @@ extern u32 nsysnet_handle;
 #define ntohl(x) x
 #define ntohs(x) x
 
-
 struct in_addr {
     u32 s_addr;
 };