* Implemented x86 assembly version of memset().

* memset() is now available through the commpage.
* CPU modules can provide a model-optimized memset().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27952 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/arch/x86/arch_cpu.h

@@ -100,6 +100,8 @@
 typedef struct x86_optimized_functions {
 	void 	(*memcpy)(void* dest, const void* source, size_t count);
 	void*	memcpy_end;
+	void 	(*memset)(void* dest, int value, size_t count);
+	void*	memset_end;
 } x86_optimized_functions;
 
 typedef struct x86_cpu_module_info {