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Re: [PATCH 5/7] target/alpha: Write to fpcr_flush_to_zero once
From: |
Philippe Mathieu-Daudé |
Subject: |
Re: [PATCH 5/7] target/alpha: Write to fpcr_flush_to_zero once |
Date: |
Sat, 21 Sep 2019 10:54:45 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 |
On 9/21/19 6:32 AM, Richard Henderson wrote:
> Tidy the computation of the value; no functional change.
>
> Signed-off-by: Richard Henderson <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
> ---
> target/alpha/helper.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/target/alpha/helper.c b/target/alpha/helper.c
> index 2f959c65ef..1b3479738b 100644
> --- a/target/alpha/helper.c
> +++ b/target/alpha/helper.c
> @@ -69,14 +69,13 @@ void cpu_alpha_store_fpcr(CPUAlphaState *env, uint64_t
> val)
> env->fpcr_exc_enable = ~t & FPCR_STATUS_MASK;
>
> env->fpcr_dyn_round = rm_map[(fpcr & FPCR_DYN_MASK) >> FPCR_DYN_SHIFT];
> -
> - env->fpcr_flush_to_zero = (fpcr & FPCR_UNFD) && (fpcr & FPCR_UNDZ);
> env->fp_status.flush_inputs_to_zero = (fpcr & FPCR_DNZ) != 0;
> +
> + t = (fpcr & FPCR_UNFD) && (fpcr & FPCR_UNDZ);
> #ifdef CONFIG_USER_ONLY
> - if (env->swcr & SWCR_MAP_UMZ) {
> - env->fpcr_flush_to_zero = 1;
> - }
> + t |= (env->swcr & SWCR_MAP_UMZ) != 0;
> #endif
> + env->fpcr_flush_to_zero = t;
> }
>
> uint64_t helper_load_fpcr(CPUAlphaState *env)
>
- [PATCH 0/7] target/alpha: Fix linux-user exception for CVTTQ, Richard Henderson, 2019/09/21
- [PATCH 1/7] target/alpha: Use array for FPCR_DYN conversion, Richard Henderson, 2019/09/21
- [PATCH 2/7] target/alpha: Fix SWCR_MAP_UMZ, Richard Henderson, 2019/09/21
- [PATCH 5/7] target/alpha: Write to fpcr_flush_to_zero once, Richard Henderson, 2019/09/21
- [PATCH 3/7] target/alpha: Fix SWCR_TRAP_ENABLE_MASK, Richard Henderson, 2019/09/21
- [PATCH 7/7] target/alpha: Tidy helper_fp_exc_raise_s, Richard Henderson, 2019/09/21
- [PATCH 6/7] target/alpha: Mask IOV exception with INV for user-only, Richard Henderson, 2019/09/21
- [PATCH 4/7] target/alpha: Handle SWCR_MAP_DMZ earlier, Richard Henderson, 2019/09/21
- Re: [PATCH 0/7] target/alpha: Fix linux-user exception for CVTTQ, Alex Bennée, 2019/09/23