From 9df38c47d01eb1fd7eb9d60ac70a4170e638b4a2 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Tue, 12 Apr 2011 13:56:41 +0100 Subject: [PATCH] target-arm: Detect tininess before rounding for FP operations The ARM architecture mandates that we detect tininess before rounding, so set the softfloat fp_status up appropriately. Signed-off-by: Peter Maydell Signed-off-by: Aurelien Jarno --- target-arm/helper.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target-arm/helper.c b/target-arm/helper.c index ce9a9d8fd2..9172fc7279 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -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); }