target/arm/vfp_helper: Extract vfp_set_fpscr_from_host()
The vfp_set_fpscr() helper contains code specific to the host floating point implementation (here the SoftFloat library). Extract this code to vfp_set_fpscr_from_host(). Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190701132516.26392-17-philmd@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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@ -81,6 +81,18 @@ static inline int vfp_exceptbits_to_host(int target_bits)
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return host_bits;
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return host_bits;
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}
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}
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static uint32_t vfp_get_fpscr_from_host(CPUARMState *env)
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{
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uint32_t i;
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i = get_float_exception_flags(&env->vfp.fp_status);
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i |= get_float_exception_flags(&env->vfp.standard_fp_status);
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/* FZ16 does not generate an input denormal exception. */
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i |= (get_float_exception_flags(&env->vfp.fp_status_f16)
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& ~float_flag_input_denormal);
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return vfp_exceptbits_from_host(i);
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}
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static void vfp_set_fpscr_to_host(CPUARMState *env, uint32_t val)
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static void vfp_set_fpscr_to_host(CPUARMState *env, uint32_t val)
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{
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{
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int i;
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int i;
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@ -141,12 +153,7 @@ uint32_t HELPER(vfp_get_fpscr)(CPUARMState *env)
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| (env->vfp.vec_len << 16)
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| (env->vfp.vec_len << 16)
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| (env->vfp.vec_stride << 20);
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| (env->vfp.vec_stride << 20);
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i = get_float_exception_flags(&env->vfp.fp_status);
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fpscr |= vfp_get_fpscr_from_host(env);
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i |= get_float_exception_flags(&env->vfp.standard_fp_status);
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/* FZ16 does not generate an input denormal exception. */
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i |= (get_float_exception_flags(&env->vfp.fp_status_f16)
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& ~float_flag_input_denormal);
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fpscr |= vfp_exceptbits_from_host(i);
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i = env->vfp.qc[0] | env->vfp.qc[1] | env->vfp.qc[2] | env->vfp.qc[3];
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i = env->vfp.qc[0] | env->vfp.qc[1] | env->vfp.qc[2] | env->vfp.qc[3];
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fpscr |= i ? FPCR_QC : 0;
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fpscr |= i ? FPCR_QC : 0;
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