- Add x86_64 support to vm_x86.c

- Fix warning on mingw64

code/qcommon/vm.c

@@ -575,7 +575,7 @@ vm_t *VM_Create( const char *module, intptr_t (*systemCalls)(intptr_t *),
 
 	// allocate space for the jump targets, which will be filled in by the compile/prep functions
 	vm->instructionCount = header->instructionCount;
-	vm->instructionPointers = Hunk_Alloc( vm->instructionCount*4, h_high );
+	vm->instructionPointers = Hunk_Alloc(vm->instructionCount * sizeof(*vm->instructionPointers), h_high);
 
 	// copy or compile the instructions
 	vm->codeLength = header->codeLength;