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[Qemu-devel] [PATCH v2 03/20] include/fpu/softfloat: implement float16_a
From: |
Alex Bennée |
Subject: |
[Qemu-devel] [PATCH v2 03/20] include/fpu/softfloat: implement float16_abs helper |
Date: |
Tue, 9 Jan 2018 12:22:35 +0000 |
This will be required when expanding the MINMAX() macro for 16
bit/half-precision operations.
Signed-off-by: Alex Bennée <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
---
include/fpu/softfloat.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index 52af1412de..cfc615008d 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -347,6 +347,13 @@ static inline int float16_is_zero_or_denormal(float16 a)
return (float16_val(a) & 0x7c00) == 0;
}
+static inline float16 float16_abs(float16 a)
+{
+ /* Note that abs does *not* handle NaN specially, nor does
+ * it flush denormal inputs to zero.
+ */
+ return make_float16(float16_val(a) & 0x7fff);
+}
/*----------------------------------------------------------------------------
| The pattern for a default generated half-precision NaN.
*----------------------------------------------------------------------------*/
--
2.15.1
- [Qemu-devel] [PATCH v2 02/20] include/fpu/softfloat: remove USE_SOFTFLOAT_STRUCT_TYPES, (continued)
- [Qemu-devel] [PATCH v2 02/20] include/fpu/softfloat: remove USE_SOFTFLOAT_STRUCT_TYPES, Alex Bennée, 2018/01/09
- Re: [Qemu-devel] [PATCH v2 02/20] include/fpu/softfloat: remove USE_SOFTFLOAT_STRUCT_TYPES, Laurent Vivier, 2018/01/09
- Re: [Qemu-devel] [PATCH v2 02/20] include/fpu/softfloat: remove USE_SOFTFLOAT_STRUCT_TYPES, Aurelien Jarno, 2018/01/09
- Re: [Qemu-devel] [PATCH v2 02/20] include/fpu/softfloat: remove USE_SOFTFLOAT_STRUCT_TYPES, Peter Maydell, 2018/01/09
- Re: [Qemu-devel] [PATCH v2 02/20] include/fpu/softfloat: remove USE_SOFTFLOAT_STRUCT_TYPES, Laurent Vivier, 2018/01/09
- Re: [Qemu-devel] [PATCH v2 02/20] include/fpu/softfloat: remove USE_SOFTFLOAT_STRUCT_TYPES, Peter Maydell, 2018/01/09
- Re: [Qemu-devel] [PATCH v2 02/20] include/fpu/softfloat: remove USE_SOFTFLOAT_STRUCT_TYPES, Richard Henderson, 2018/01/09
- Re: [Qemu-devel] [PATCH v2 02/20] include/fpu/softfloat: remove USE_SOFTFLOAT_STRUCT_TYPES, Alex Bennée, 2018/01/09
[Qemu-devel] [PATCH v2 05/20] include/fpu/softfloat: implement float16_set_sign helper, Alex Bennée, 2018/01/09
[Qemu-devel] [PATCH v2 03/20] include/fpu/softfloat: implement float16_abs helper,
Alex Bennée <=
[Qemu-devel] [PATCH v2 06/20] include/fpu/softfloat: add some float16 constants, Alex Bennée, 2018/01/09
[Qemu-devel] [PATCH v2 04/20] include/fpu/softfloat: implement float16_chs helper, Alex Bennée, 2018/01/09
[Qemu-devel] [PATCH v2 01/20] fpu/softfloat: implement float16_squash_input_denormal, Alex Bennée, 2018/01/09
[Qemu-devel] [PATCH v2 08/20] fpu/softfloat: improve comments on ARM NaN propagation, Alex Bennée, 2018/01/09