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Re: RFA 1/3: change PPC E500 raw regcache layout
- From: Kevin Buettner <kevinb at redhat dot com>
- To: Jim Blandy <jimb at redhat dot com>
- Cc: gdb-patches at sources dot redhat dot com
- Date: Fri, 2 Jul 2004 15:26:26 -0700
- Subject: Re: RFA 1/3: change PPC E500 raw regcache layout
- Organization: Red Hat
- References: <vt2r7rxat3d.fsf@zenia.home>
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