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[Qemu-arm] [RFC PATCH 08/30] softfloat: add half-precision expansions fo
From: |
Alex Bennée |
Subject: |
[Qemu-arm] [RFC PATCH 08/30] softfloat: add half-precision expansions for MINMAX fns |
Date: |
Fri, 13 Oct 2017 17:24:16 +0100 |
Expand the current helpers to include half-precision functions. The
includes having f16 version of the compare functions.
Signed-off-by: Alex Bennée <address@hidden>
---
fpu/softfloat.c | 2 ++
include/fpu/softfloat.h | 11 +++++++++++
2 files changed, 13 insertions(+)
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 3a4ab1355f..013b223947 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -7579,6 +7579,7 @@ int float ## s ## _compare_quiet(float ## s a, float ## s
b, \
return float ## s ## _compare_internal(a, b, 1, status); \
}
+COMPARE(16, 0x1f)
COMPARE(32, 0xff)
COMPARE(64, 0x7ff)
@@ -7779,6 +7780,7 @@ float ## s float ## s ## _maxnummag(float ## s a, float
## s b, \
return float ## s ## _minmax(a, b, 0, 1, 1, status); \
}
+MINMAX(16)
MINMAX(32)
MINMAX(64)
diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index edf402d422..d89fdf7675 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -381,6 +381,17 @@ static inline float16 float16_abs(float16 a)
*/
return make_float16(float16_val(a) & 0x7fff);
}
+
+/* Expanded by the MINMAX macro in softfloat.c */
+int float16_compare(float16, float16, float_status *status);
+int float16_compare_quiet(float16, float16, float_status *status);
+float16 float16_min(float16, float16, float_status *status);
+float16 float16_max(float16, float16, float_status *status);
+float16 float16_minnum(float16, float16, float_status *status);
+float16 float16_maxnum(float16, float16, float_status *status);
+float16 float16_minnummag(float16, float16, float_status *status);
+float16 float16_maxnummag(float16, float16, float_status *status);
+
/*----------------------------------------------------------------------------
| The pattern for a default generated half-precision NaN.
*----------------------------------------------------------------------------*/
--
2.14.1
- Re: [Qemu-arm] [RFC PATCH 04/30] target/arm/cpu.h: update comment for half-precision values, (continued)
- [Qemu-arm] [RFC PATCH 02/30] arm: introduce ARM_V8_FP16 feature bit, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 01/30] linux-user/main: support dfilter, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 06/30] fpu/softfloat: implement float16_squash_input_denormal, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 07/30] fpu/softfloat: implement float16_abs helper, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 08/30] softfloat: add half-precision expansions for MINMAX fns,
Alex Bennée <=
- [Qemu-arm] [RFC PATCH 05/30] softfloat: implement propagateFloat16NaN, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 12/30] target/arm/translate-a64.c: handle_3same_64 comment fix, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 09/30] softfloat: propagate signalling NaNs in MINMAX, Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 11/30] target/arm: implement half-precision F(MIN|MAX)(V|NMV), Alex Bennée, 2017/10/13
- [Qemu-arm] [RFC PATCH 17/30] target/arm/translate-a64.c: add FP16 FMULX, Alex Bennée, 2017/10/13