softfloat: Add float/double to 16 bit integer conversion functions
The ARM architecture needs float/double to 16 bit integer conversions.
(The 32 bit versions aren't sufficient because of the requirement
to saturate at 16 bit MAXINT/MININT and to get the exception bits right.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Nathan Froyd <froydnj@codesourcery.com>
diff --git a/fpu/softfloat.h b/fpu/softfloat.h
index 2e651e2..1c1004d 100644
--- a/fpu/softfloat.h
+++ b/fpu/softfloat.h
@@ -251,6 +251,8 @@
/*----------------------------------------------------------------------------
| Software IEC/IEEE single-precision conversion routines.
*----------------------------------------------------------------------------*/
+int float32_to_int16_round_to_zero( float32 STATUS_PARAM );
+unsigned int float32_to_uint16_round_to_zero( float32 STATUS_PARAM );
int float32_to_int32( float32 STATUS_PARAM );
int float32_to_int32_round_to_zero( float32 STATUS_PARAM );
unsigned int float32_to_uint32( float32 STATUS_PARAM );
@@ -327,6 +329,8 @@
/*----------------------------------------------------------------------------
| Software IEC/IEEE double-precision conversion routines.
*----------------------------------------------------------------------------*/
+int float64_to_int16_round_to_zero( float64 STATUS_PARAM );
+unsigned int float64_to_uint16_round_to_zero( float64 STATUS_PARAM );
int float64_to_int32( float64 STATUS_PARAM );
int float64_to_int32_round_to_zero( float64 STATUS_PARAM );
unsigned int float64_to_uint32( float64 STATUS_PARAM );