From 54085f30f2afd887d2780e57b61d885c177782ba Mon Sep 17 00:00:00 2001 From: lkcl Date: Fri, 4 Jun 2021 19:59:54 +0100 Subject: [PATCH] --- openpower/sv/int_fp_mv/appendix.mdwn | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/openpower/sv/int_fp_mv/appendix.mdwn b/openpower/sv/int_fp_mv/appendix.mdwn index c730ef38e..38a341ccf 100644 --- a/openpower/sv/int_fp_mv/appendix.mdwn +++ b/openpower/sv/int_fp_mv/appendix.mdwn @@ -35,6 +35,10 @@ rather than Double width hardcoded to 64 and Single width hardcoded to 32. This allows a full range of conversions between FP64, FP32, FP16 and BF16. +Note however that attempts to perform "Single" operations on +FP16 elwidths will raise an illegal instruction trap: Half +of FP16 is FP8, which is not defined as a legal IEEE754 format. + # Simple-V SVP64 Saturation SVP64 also allows for Saturation, such that the result is truncated -- 2.30.2