From 6d5e6793d61945a6ae1048a5f99b4d495c0efd2b Mon Sep 17 00:00:00 2001 From: lkcl Date: Fri, 4 Jun 2021 02:29:57 +0100 Subject: [PATCH] --- openpower/sv/int_fp_mv.mdwn | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/openpower/sv/int_fp_mv.mdwn b/openpower/sv/int_fp_mv.mdwn index 9d29c0710..cc1b69953 100644 --- a/openpower/sv/int_fp_mv.mdwn +++ b/openpower/sv/int_fp_mv.mdwn @@ -12,7 +12,10 @@ Libre-SOC will be compliant with the **Scalar Floating-Point Subset** (SFFS) i.e. is not implementing VMX/VSX, and with its focus on modern 3D GPU hybrid workloads represents an important new potential use-case for OpenPOWER. -With VMX/VSX not available in the SFFS Compliancy Level, the + +The progressive development of the Scalar parts of the Power ISA assumed +that VSX would be there to complement it. However With VMX/VSX +**not available** in the newly-introduced SFFS Compliancy Level, the existing non-VSX conversion/data-movement instructions require load/store instructions (slow and expensive) to transfer data between the FPRs and the GPRs. Also, because SimpleV needs efficient scalar instructions in -- 2.30.2