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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 8/8] ARM: Implement VCVT to 16 bit integer using new softfloat routines
Date: Thu, 11 Nov 2010 18:24:02 +0000	[thread overview]
Message-ID: <1289499842-28818-9-git-send-email-peter.maydell@linaro.org> (raw)
In-Reply-To: <1289499842-28818-1-git-send-email-peter.maydell@linaro.org>

Use the softfloat conversion routines for conversion to 16 bit
integers, because just casting to a 16 bit type truncates the
value rather than saturating it at 16-bit MAXINT/MININT.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/helper.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 66648d8..5fa5f40 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -2569,7 +2569,7 @@ ftype VFP_HELPER(to##name, p)(ftype x, uint32_t shift, CPUState *env) \
         return ftype##_zero; \
     } \
     tmp = ftype##_scalbn(x, shift, &env->vfp.fp_status); \
-    return vfp_ito##p((itype)ftype##_to_##sign##int32_round_to_zero(tmp, \
+    return vfp_ito##p(ftype##_to_##itype##_round_to_zero(tmp, \
         &env->vfp.fp_status)); \
 }
 
-- 
1.7.1

      parent reply	other threads:[~2010-11-11 18:24 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-11 18:23 [Qemu-devel] [PATCH 0/8] ARM: fix VCVT instructions Peter Maydell
2010-11-11 18:23 ` [Qemu-devel] [PATCH 1/8] ARM: Fix decoding of VFP forms of VCVT between float and int/fixed Peter Maydell
2010-12-06 16:30   ` Nathan Froyd
2010-12-06 16:48     ` Peter Maydell
2010-12-06 16:57       ` Nathan Froyd
2010-12-06 17:07         ` Peter Maydell
2010-12-08 12:00           ` Peter Maydell
2010-11-11 18:23 ` [Qemu-devel] [PATCH 2/8] ARM: Fix decoding of Neon forms of VCVT between float and fixed point Peter Maydell
2010-11-11 18:23 ` [Qemu-devel] [PATCH 3/8] ARM: Fix sense of to_integer bit in Neon VCVT float/int conversion Peter Maydell
2010-11-11 18:23 ` [Qemu-devel] [PATCH 4/8] ARM: Return correct result for float-to-integer conversion of NaN Peter Maydell
2010-11-11 19:21   ` Nathan Froyd
2010-11-12 23:08     ` Peter Maydell
2010-11-11 18:23 ` [Qemu-devel] [PATCH 5/8] ARM: Return correct result for single<->double " Peter Maydell
2010-11-11 18:24 ` [Qemu-devel] [PATCH 6/8] ARM: Ignore top 16 bits when doing VCVT from 16 bit fixed point Peter Maydell
2010-11-11 18:24 ` [Qemu-devel] [PATCH 7/8] softfloat: Add float/double to 16 bit integer conversion functions Peter Maydell
2010-11-11 18:24 ` Peter Maydell [this message]

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