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Re: [Qemu-devel] [PATCH 0/6] target-alpha: fpu qualifiers, round 2

From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH 0/6] target-alpha: fpu qualifiers, round 2
Date: Tue, 09 Feb 2010 10:47:38 -0800
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Ping 2.


On 01/04/2010 02:46 PM, Richard Henderson wrote:
I've split up the FPCR as requested by Aurelien.  We no longer
set anything in FP_STATUS after the execution of the operation,
only copy data from FP_STATUS to some env->fpcr field.

I have totally rewritten the patch to be more along the line
that Laurent was suggesting, in that the rounding mode and other
qualifiers are totally parsed within the translator.  I no longer
pass the FN11 field to the helper functions.

Unlike Laurent's prototype, I do not set the rounding mode at
every FP instruction; I remember the previous setting of the
rounding mode within a TB.  Similarly for the flush-to-zero field.

I do not handle VAX instructions at all.  The existing VAX support
is mostly broken, and I didn't feel like compounding the problem.


Richard Henderson (6):
   target-alpha: Fix gdb access to fpcr and unique.
   target-alpha: Split up FPCR value into separate fields.
   target-alpha: Reduce internal processor registers for user-mode.
   target-alpha: Clean up arithmetic traps.
   target-alpha: Mark helper_excp as NORETURN.
   target-alpha: Implement IEEE FP qualifiers.

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