Re: [Qemu-devel] [PATCH v3 00/10] POWER9 TCG enablements - part15

[David Gibson]

On Wed, Feb 22, 2017 at 05:14:33PM +0530, Nikunj A Dadhania wrote:
> This series contains implentation of CA32 and OV32 bits added to the 
> ISA 3.0. Various fixed-point arithmetic instructions are updated to take
> care of the newer flags. 
> 
> Finally the last patch adds new instruction mcrxrx, that helps reading 
> the carry (CA and CA32) and the overflow (OV and OV32) flags

I've applied patches 1 & 2 to ppc-for-2.9.

The rest I've left for a resend pending my comments and rth's.

> 
> Changelog:
> v2: 
> * Add missing condition in narrow mode(add/subf), multiply and divide
> * Drop nego patch, subf implementation is sufficient for setting OV and OV32
> * Retaining neg[.], as the code is simplified.
> * Fix OV resetting in compute_ov()
> 
> v1: 
> * Use these ISA 3.0 flag to enable CA32 and OV32
> * Re-write ca32 compute routine
> * Add setting of flags for "neg." and "nego."
> 
> Nikunj A Dadhania (10):
>   target/ppc: move cpu_[read, write]_xer to cpu.c
>   target/ppc: optimize gen_write_xer()
>   target/ppc: support for 32-bit carry and overflow
>   target/ppc: update ca32 in arithmetic add
>   target/ppc: update ca32 in arithmetic substract
>   target/ppc: update overflow flags for add/sub
>   target/ppc: use tcg ops for neg instruction
>   target/ppc: add ov32 flag for multiply low insns
>   target/ppc: add ov32 flag in divide operations
>   target/ppc: add mcrxrx instruction
> 
>  target/ppc/Makefile.objs    |   1 +
>  target/ppc/cpu.c            |  51 ++++++++++++++++++
>  target/ppc/cpu.h            |  21 ++++----
>  target/ppc/int_helper.c     |  53 +++++++-----------
>  target/ppc/translate.c      | 128 
> ++++++++++++++++++++++++++++++++++++++------
>  target/ppc/translate_init.c |   4 +-
>  6 files changed, 194 insertions(+), 64 deletions(-)
>  create mode 100644 target/ppc/cpu.c
> 

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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