extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs);
extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs);
+/* Floating point values. */
+extern const struct floatformat *default_float_format (struct gdbarch *gdbarch);
+extern const struct floatformat *default_double_format (struct gdbarch *gdbarch);
+
+/* Helper function for targets that don't know how my arguments are
+ being passed */
+extern int frame_num_args_unknown (struct frame_info *fi);
+
+
+/* The following DEPRECATED interfaces are for pre- multi-arch legacy
+ targets. */
+
+/* DEPRECATED pre- multi-arch interface. Explicitly set the dynamic
+ target-system-dependent parameters based on bfd_architecture and
+ machine. This function is deprecated, use
+ set_gdbarch_from_arch_machine(). */
+
+extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long);
+
+/* DEPRECATED pre- multi-arch interface. Notify the target dependent
+ backend of a change to the selected architecture. A zero return
+ status indicates that the target did not like the change. */
+
+extern int (*target_architecture_hook) (const struct bfd_arch_info *);
+
+
+/* Default raw->sim register re-numbering - does nothing. */
+
+extern int default_register_sim_regno (int reg_nr);
+
#endif