From: Nathan Froyd <froydnj@codesourcery.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-devel@nongnu.org, patches@linaro.org
Subject: Re: [Qemu-devel] [PATCH 6/7] softfloat: Add float*_min() and float*_max() functions
Date: Fri, 11 Mar 2011 10:28:29 -0800 [thread overview]
Message-ID: <20110311182829.GT23686@codesourcery.com> (raw)
In-Reply-To: <1299867146-22049-7-git-send-email-peter.maydell@linaro.org>
On Fri, Mar 11, 2011 at 06:12:25PM +0000, Peter Maydell wrote:
> Add min and max operations to softfloat. This allows us to implement
> propagation of NaNs and handling of negative zero correctly (unlike
> the approach of having target helper routines return one of the operands
> based on the result of a comparison op).
Are these useful anyplace beside ARM? i.e. do they implement the
correct AltiVec/VSX/SSE* (any others?) semantics?
-Nathan
next prev parent reply other threads:[~2011-03-11 18:28 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-11 18:12 [Qemu-devel] [PATCH 0/7] ARM: minor Neon fixes (mostly NaN related) Peter Maydell
2011-03-11 18:12 ` [Qemu-devel] [PATCH 1/7] target-arm: Make Neon helper routines use correct FP status Peter Maydell
2011-03-11 18:30 ` Nathan Froyd
2011-03-11 22:31 ` Peter Maydell
2011-03-14 5:35 ` Nathan Froyd
2011-03-28 14:15 ` Peter Maydell
2011-03-30 18:38 ` Nathan Froyd
2011-03-11 18:12 ` [Qemu-devel] [PATCH 2/7] target-arm/neon_helper.c: Use make_float32/float32_val macros Peter Maydell
2011-03-11 18:29 ` Nathan Froyd
2011-03-11 18:12 ` [Qemu-devel] [PATCH 3/7] target-arm: Return right result for Neon comparison with NaNs Peter Maydell
2011-03-11 18:12 ` [Qemu-devel] [PATCH 4/7] target-arm: Fix VCLE.F32 #0, VCLT.F32 #0 NaN handling Peter Maydell
2011-03-11 18:12 ` [Qemu-devel] [PATCH 5/7] target-arm: Correct ABD's handling of negative zeroes Peter Maydell
2011-03-11 18:12 ` [Qemu-devel] [PATCH 6/7] softfloat: Add float*_min() and float*_max() functions Peter Maydell
2011-03-11 18:28 ` Nathan Froyd [this message]
2011-03-11 23:31 ` Peter Maydell
2011-03-11 18:12 ` [Qemu-devel] [PATCH 7/7] target-arm: Use new softfloat min/max functions for VMAX, VMIN Peter Maydell
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