From: lkcl <lkcl@web>
Date: Mon, 5 Sep 2022 17:03:57 +0000 (+0100)
Subject: (no commit message)
X-Git-Tag: opf_rfc_ls005_v1~671
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ada035ea5ed6e35b2324dfbcf2783377eb252e3f;p=libreriscv.git

---

diff --git a/openpower/sv/remap.mdwn b/openpower/sv/remap.mdwn
index 214d07378..51b1c978a 100644
--- a/openpower/sv/remap.mdwn
+++ b/openpower/sv/remap.mdwn
@@ -437,7 +437,7 @@ disabled: the register's elements are a linear (1D) vector.
 |0b00 |skip   |offset| invxyz | permute | zdimsz  |ydimsz|xdimsz|Matrix |
 |0b00 |elwidth|offset|sk1/invxy|0b110/0b111|SVGPR|ydimsz|xdimsz|Indexed|
 |0b01 |submode|offset| invxyz | submode2| rsvd    |rsvd  |xdimsz|DCT/FFT|
-|0b10 |rsvd   |offset| invxyz | rsvd    | rsvd    |rsvd  |xdimsz|Preduce|
+|0b10 |submode|offset| invxyz | rsvd    | rsvd    |rsvd  |xdimsz|Preduce|
 |0b11 |       |      |        |         |         |      |      |rsvd   |
 
 mode sets different behaviours (straight matrix multiply, FFT, DCT).
@@ -447,6 +447,11 @@ mode sets different behaviours (straight matrix multiply, FFT, DCT).
 * **mode=0b01** sets "FFT/DCT" mode and activates submodes
 * **mode=0b10** sets "Parallel Reduction" Schedules.
 
+## Parallel Reduction Mode
+
+* **submode=0b00** selects the left operand index
+* **submode=0b01** selects the right operand index
+
 ## FFT/DCT mode
 
 submode2=0 is for FFT. For FFT submode the following schedules may be