Commit 8cd99905 authored by Richard Henderson's avatar Richard Henderson Committed by Alex Bennée
Browse files

target/alpha: Handle SWCR_MAP_DMZ earlier 



Since we're converting the swcr to fpcr format for exceptions,
it's trivial to add FPCR_DNZ to the set of fpcr bits overriden.
No functional change.

Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Message-Id: <20190921043256.4575-5-richard.henderson@linaro.org>
parent 106e1319

target/alpha/helper.c

+1 −4
Original line number Diff line number Diff line
@@ -57,7 +57,7 @@ void cpu_alpha_store_fpcr(CPUAlphaState *env, uint64_t val) 
     * the software exception mask.

     */

    uint32_t soft_fpcr = alpha_ieee_swcr_to_fpcr(env->swcr) >> 32;

    fpcr |= soft_fpcr & FPCR_STATUS_MASK;

    fpcr |= soft_fpcr & (FPCR_STATUS_MASK | FPCR_DNZ);

#endif



    t |= CONVERT_BIT(fpcr, FPCR_INED, FPCR_INE);
@@ -73,9 +73,6 @@ void cpu_alpha_store_fpcr(CPUAlphaState *env, uint64_t val) 
    env->fpcr_flush_to_zero = (fpcr & FPCR_UNFD) && (fpcr & FPCR_UNDZ);

    env->fp_status.flush_inputs_to_zero = (fpcr & FPCR_DNZ) != 0;

#ifdef CONFIG_USER_ONLY

    if (env->swcr & SWCR_MAP_DMZ) {

        env->fp_status.flush_inputs_to_zero = 1;

    }

    if (env->swcr & SWCR_MAP_UMZ) {

        env->fpcr_flush_to_zero = 1;

    }