Re: [Qemu-devel] [PATCH 35/42] target/arm: Convert the VCVT-to-f16 insns to decodetree

[Richard Henderson]

On 6/6/19 12:46 PM, Peter Maydell wrote:
> Convert the VCVTT and VCVTB instructions which convert from
> f32 and f64 to f16 to decodetree.
> 
> Since we're no longer constrained to the old decoder's style
> using cpu_F0s and cpu_F0d we can perform a direct 16 bit
> store of the right half of the input single-precision register
> rather than doing a load/modify/store sequence on the full
> 32 bits.
> 
> Signed-off-by: Peter Maydell <address@hidden>
> ---
>  target/arm/translate-vfp.inc.c | 62 ++++++++++++++++++++++++++
>  target/arm/translate.c         | 79 +---------------------------------
>  target/arm/vfp.decode          |  6 +++
>  3 files changed, 69 insertions(+), 78 deletions(-)

Reviewed-by: Richard Henderson <address@hidden>


r~