Add a function to round a floatx80 to the defined precision
(floatx80_rounding_precision)
Signed-off-by: Laurent Vivier <laur...@vivier.eu>
---
fpu/softfloat.c | 15 +++++++++++++++
include/fpu/softfloat.h | 1 +
2 files changed, 16 insertions(+)
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 7af14e2..e9bf359 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -5086,6 +5086,21 @@ float128 floatx80_to_float128(floatx80 a, float_status
*status)
}
/*----------------------------------------------------------------------------
+| Rounds the extended double-precision floating-point value `a'
+| and returns the result as an extended double-precision floating-point
+| value. The operation is performed according to the IEC/IEEE Standard for
+| Binary Floating-Point Arithmetic.
+*----------------------------------------------------------------------------*/
+
+floatx80 floatx80_round(floatx80 a, float_status *status)
+{
+ return roundAndPackFloatx80(status->floatx80_rounding_precision,
+ extractFloatx80Sign(a),
+ extractFloatx80Exp(a),
+ extractFloatx80Frac(a), 0, status);
+}
+
+/*----------------------------------------------------------------------------
| Rounds the extended double-precision floating-point value `a' to an integer,
| and returns the result as an extended quadruple-precision floating-point
| value. The operation is performed according to the IEC/IEEE Standard for
diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index f1288ef..d9689ec 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -621,6 +621,7 @@ float128 floatx80_to_float128(floatx80, float_status
*status);
/*----------------------------------------------------------------------------
| Software IEC/IEEE extended double-precision operations.
*----------------------------------------------------------------------------*/
+floatx80 floatx80_round(floatx80 a, float_status *status);
floatx80 floatx80_round_to_int(floatx80, float_status *status);
floatx80 floatx80_add(floatx80, floatx80, float_status *status);
floatx80 floatx80_sub(floatx80, floatx80, float_status *status);
--
2.9.4
