2003-05-02 Andrew Cagney <cagney@redhat.com>

	* gdbarch.sh (REGISTER_SIZE, REGISTER_BYTES): Make optional.
	* gdbarch.h, gdbarch.c: Re-generate.
	* d10v-tdep.c (d10v_gdbarch_init): Do not set register_size,
	register_virtual_size, pc_regnum, or register_bytes.
	(D10V_PC_REGNUM): Rename _PC_REGNUM.
	(d10v_register_type): Use D10V_PC_REGNUM.
	(d10v_print_registers_info, d10v_read_pc): Ditto.
	(d10v_write_pc, d10v_eva_prepare_to_trace): Ditto.
	(d10v_unwind_pc, d10v_frame_prev_register): Ditto.