-/* Set the function that should be used by this module to determine
- whether a given register is a segment register or not. */
-extern void windows_set_segment_register_p (segment_register_p_ftype *fun);
+/* segment_register_p_ftype implementation for x86. */
+int i386_windows_segment_register_p (int regnum);
+
+/* context register offests for x86. */
+extern const int i386_mappings[];
+
+#ifdef __x86_64__
+/* segment_register_p_ftype implementation for amd64. */
+int amd64_windows_segment_register_p (int regnum);
+
+/* context register offests for amd64. */
+extern const int amd64_mappings[];
+#endif