From 5f930469aac0a382639ef25c662a91a95b9a1862 Mon Sep 17 00:00:00 2001 From: lkcl Date: Wed, 30 Dec 2020 15:51:04 +0000 Subject: [PATCH] --- openpower/sv/svp64.mdwn | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/openpower/sv/svp64.mdwn b/openpower/sv/svp64.mdwn index 409966721..2c3d085b0 100644 --- a/openpower/sv/svp64.mdwn +++ b/openpower/sv/svp64.mdwn @@ -165,13 +165,14 @@ The following fields are common to all Remapped Encodings: | SUBVL | `6:7` | Sub-vector length | | MODE | `19:23` | changes Vector behaviour | -Bits 9 to 18 are further decoded depending on RM category for the instruction. - * MODE changes the behaviour of the SV operation (result saturation, mapreduce) * SUBVL groups elements together into vec2, vec3, vec4 for use in 3D and Audio/Video DSP work * ELWIDTH overrides the instruction's operand width * MASK and MASK_KIND provide predication (two types of sources: scalar INT and Vector CR). +Bits 9 to 18 are further decoded depending on RM category for the instruction. +These are given designations such as `RM-1P-3S1D` which indicate that the operation is to be single-predicated and that there are 3 source operand EXTRA tags and one destination operand tag. + # Mode Mode is an augmentation of SV behaviour. Some of these alterations are element-based (saturation), others involve post-analysis (predicate result) and others are Vector-based (mapreduce, fail-on-first). -- 2.30.2