2002-08-19 Elena Zannoni <ezannoni@redhat.com>

2002-08-19  Elena Zannoni  <ezannoni@redhat.com>

	* rs6000-tdep.c (struct reg): Add field to indicate a pseudo
	register.
	(P): New macro to define a register as a pseudo register.
	(R, R4, R8, R16, FR32, R64, R0): Updated.
	(struct variant): Add new fields for number of pseudo registers
	and number of total registers.
	(tot_num_registers): New macro replacing....
	(num_registers): ...deleted macro.
	(num_registers): New function.
	(num_pseudo_registers): New function.
	(variants): Update all variants to intialize new fields correctly.
	Postpone initialization of number of pseudo regs and real regs.
	(init_variants): New function.
	(rs6000_gdbarch_init): Initialize variants.  Update calculation of
	registers offsets.