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target-arm: Detect tininess before rounding for FP operations

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The ARM architecture mandates that we detect tininess before rounding,
so set the softfloat fp_status up appropriately.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Peter Maydell 2011-04-12 13:56:41 +01:00 committed by Aurelien Jarno
parent c29aca4461
commit 9df38c47d0
1 changed files with 4 additions and 0 deletions
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4
target-arm/helper.c
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@ -269,6 +269,10 @@ void cpu_reset(CPUARMState *env)
set_flush_to_zero(1, &env->vfp.standard_fp_status);
set_flush_inputs_to_zero(1, &env->vfp.standard_fp_status);
set_default_nan_mode(1, &env->vfp.standard_fp_status);
set_float_detect_tininess(float_tininess_before_rounding,
&env->vfp.fp_status);
set_float_detect_tininess(float_tininess_before_rounding,
&env->vfp.standard_fp_status);
tlb_flush(env, 1);
}