Re: RFA 1/3: change PPC E500 raw regcache layout

[Kevin Buettner <kevinb@redhat.com>]

On 30 Jun 2004 11:49:58 -0500
Jim Blandy <jimb@redhat.com> wrote:

> 2004-06-30  Jim Blandy  <jimb@redhat.com>
> 
> 	Make the E500 SPE vector registers pseudoregisters, based on raw
> 	registers for the lower and upper 32-bit gpr halves.
> 	* ppc-tdep.h (struct gdbarch_tdep): Replace 'ppc_gprs_pseudo_p'
> 	flag with 'ppc_ev0_upper_regnum'.
> 	* rs6000-tdep.c: #include "reggroups.h".
> 	(spe_register_p): The gpr upper-half registers are SPE registers.
> 	(e500_move_ev_register): New function.
> 	(e500_pseudo_register_read, e500_pseudo_register_write): Rewitten
> 	for new raw / pseudo relationship.
> 	(e500_register_reggroup_p): New function.
> 	(A4,P8): New regset macro.
> 	(P): Delete; unused.
> 	(PPC_EV_REGS, PPC_GPRS_PSEUDO_REGS): Deleted.
> 	(PPC_SPE_GP_REGS, PPC_SPE_UPPER_GP_REGS, PPC_EV_PSEUDO_REGS): New
> 	partial regset macros.
> 	(regiters_e500): Make separate raw registers for the upper and
> 	lower 32-bit halves of the 64-bit SPE gprs.  Make the 'ev' vector
> 	registers into pseudoregisters.
> 	(rs6000_gdbarch_init): Initialize the tdep's ppc_ev0_upper_regnum
> 	members, and adjust initializations of other register numbers.
> 	Register e500_register_reggroup_p.
> 	* Makefile.in (rs6000-tdep.o): Update dependencies.

Okay.  (Thanks for the explanation preceding the patch.)

Kevin