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Re: [PATCH 16/21] target/alpha: Explicitly set 2-NaN propagation rule


From: Richard Henderson
Subject: Re: [PATCH 16/21] target/alpha: Explicitly set 2-NaN propagation rule
Date: Mon, 28 Oct 2024 12:25:15 +0000
User-agent: Mozilla Thunderbird

On 10/25/24 15:12, Peter Maydell wrote:
Set the NaN propagation rule explicitly for the float_status word
used in this target.

This is a no-behaviour-change commit, so we retain the existing
behaviour of x87-style pick-largest-significand NaN propagation.
This is however not the architecturally correct handling, so we leave
a TODO note to that effect.

We also leave a TODO note pointing out that all this code in the cpu
initfn (including the existing setting up of env->flags and the FPCR)
should be in a currently non-existent CPU reset function.

Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
---
  target/alpha/cpu.c             | 11 +++++++++++
  fpu/softfloat-specialize.c.inc |  2 +-
  2 files changed, 12 insertions(+), 1 deletion(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~



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