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[Qemu-devel] [PATCH 08/10] ARM: Ignore top 16 bits when doing VCVT from
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 08/10] ARM: Ignore top 16 bits when doing VCVT from 16 bit fixed point |
Date: |
Mon, 6 Dec 2010 17:00:09 +0000 |
VCVT of 16 bit fixed point to float should ignore the top 16 bits
of the source register. Cast to int16_t and friends rather than
int16 -- the former is guaranteed exactly 16 bits wide where the
latter is merely at least 16 bits wide (and so is usually 32 bits).
Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Nathan Froyd <address@hidden>
---
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 4bd1cd4..2925782 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -2549,7 +2549,7 @@ float32 VFP_HELPER(fcvts, d)(float64 x, CPUState *env)
ftype VFP_HELPER(name##to, p)(ftype x, uint32_t shift, CPUState *env) \
{ \
ftype tmp; \
- tmp = sign##int32_to_##ftype ((itype)vfp_##p##toi(x), \
+ tmp = sign##int32_to_##ftype ((itype##_t)vfp_##p##toi(x), \
&env->vfp.fp_status); \
return ftype##_scalbn(tmp, -(int)shift, &env->vfp.fp_status); \
} \
--
1.6.3.3
- [Qemu-devel] [PATCH V2 00/10] ARM: fix VCVT instructions, Peter Maydell, 2010/12/06
- [Qemu-devel] [PATCH 04/10] softfloat: Add float*_is_any_nan() functions, Peter Maydell, 2010/12/06
- [Qemu-devel] [PATCH 09/10] softfloat: Add float/double to 16 bit integer conversion functions, Peter Maydell, 2010/12/06
- [Qemu-devel] [PATCH 05/10] ARM: Return correct result for float-to-integer conversion of NaN, Peter Maydell, 2010/12/06
- [Qemu-devel] [PATCH 02/10] ARM: Fix decoding of Neon forms of VCVT between float and fixed point, Peter Maydell, 2010/12/06
- [Qemu-devel] [PATCH 01/10] ARM: Fix decoding of VFP forms of VCVT between float and int/fixed, Peter Maydell, 2010/12/06
- [Qemu-devel] [PATCH 08/10] ARM: Ignore top 16 bits when doing VCVT from 16 bit fixed point,
Peter Maydell <=
- [Qemu-devel] [PATCH 06/10] softfloat: Add float*_maybe_silence_nan() functions, Peter Maydell, 2010/12/06
- [Qemu-devel] [PATCH 03/10] ARM: Fix sense of to_integer bit in Neon VCVT float/int conversion, Peter Maydell, 2010/12/06
- [Qemu-devel] [PATCH 07/10] ARM: Return correct result for single<->double conversion of NaN, Peter Maydell, 2010/12/06
- [Qemu-devel] [PATCH 10/10] ARM: Implement VCVT to 16 bit integer using new softfloat routines, Peter Maydell, 2010/12/06