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softfloat: define floatx80_round()

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Add a function to round a floatx80 to the defined precision
(floatx80_rounding_precision)

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <20170628204241.32106-5-laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2017-06-28 22:42:38 +02:00
parent a51b6bc38b
commit 0f72129281
2 changed files with 17 additions and 0 deletions
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1
include/fpu/softfloat.h
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@ -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);