From: lkcl Date: Wed, 30 Dec 2020 15:42:29 +0000 (+0000) Subject: (no commit message) X-Git-Tag: convert-csv-opcode-to-binary~722 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0be91ad243f86397a22a89d31666accfa8a74dfc;p=libreriscv.git --- diff --git a/openpower/sv/svp64.mdwn b/openpower/sv/svp64.mdwn index aabbfdebb..44375c3a9 100644 --- a/openpower/sv/svp64.mdwn +++ b/openpower/sv/svp64.mdwn @@ -52,7 +52,7 @@ This document focusses specifically on how that fits into available space. The For the new fields added in SVP64, instructions that have any of their fields set to a reserved value must cause an illegal instruction trap, -to allow emulation of future instruction sets. +to allow emulation of future instruction sets. Reserved values are always all zeros. This is unlike OpenPower ISA v3.1, which in many instances does not require a trap if reserved fields are nonzero. @@ -163,7 +163,7 @@ The following fields are common to all Remapped Encodings: | MASK | `1:3` | Execution Mask | | ELWIDTH | `4:5` | Element Width | | SUBVL | `6:7` | Sub-vector length | -| MODE | `19:23` | changes Vector behaviour | +| MODE | `19:23` | changes Vector behaviour | Bits 9 to 18 are further decoded depending on RM category for the instruction.