From: lkcl <lkcl@web>
Date: Mon, 6 Jun 2022 22:03:17 +0000 (+0100)
Subject: (no commit message)
X-Git-Tag: opf_rfc_ls005_v1~1931
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e228e1a75cceb947b75c48f12827a1f30dce58b6;p=libreriscv.git

---

diff --git a/openpower/sv/remap.mdwn b/openpower/sv/remap.mdwn
index 332680239..ee3174be0 100644
--- a/openpower/sv/remap.mdwn
+++ b/openpower/sv/remap.mdwn
@@ -181,7 +181,7 @@ Fields:
 * **SVzd** - SV REMAP "zdim"
 * **SVRM** - SV REMAP Mode (0b00000 for Matrix, 0b00001 for FFT etc.)
 * **vf** - sets "Vertical-First" mode
-* **XO** - standard 5-bit XO field
+* **XO** - standard 6-bit XO field
 
 | SVRM   | Remap Mode description |
 | --     | --              |
@@ -220,26 +220,25 @@ instruction, `psvshape`, may extend the capability here.
 
 `svindex` is a convenience instruction that reduces instruction
 count for Indexed REMAP Mode. It sets up
-(overwrites) all required SVSHAPE SPRs and also modifies SVSTATE
-including VL and MAXVL. Using `svshape` therefore does not also
-require `setvl`.
+(overwrites) all required SVSHAPE SPRs and can modify the REMAP
+SPR as well.
 
 Form: SVI-Form SV "Indexed" Form (see [[isatables/fields.text]])
 
-    svindex RS,mask,SVd,ew,vf
+    svindex RS,mask,SVd,ew,yz,mr
 
-| 0.5|6.10 |11.15  |16.21 | 22.23 | 25 | 26..31|  name    |
-| -- | --  | ---   | ---- | ----- | -- | ------| -------- |
-|OPCD| RS  | mask  | SVd  | ew    | vf | XO    | svindex |
+| 0.5|6.10 |11.15  |16.20 | 21..25      | 26..31|  name    |
+| -- | --  | ---   | ---- | ----------- | ------| -------- |
+|OPCD| RS  | mask  | SVd  | ew/yx/mr/vf | XO    | svindex |
 
 Fields:
 
-* **SVxd** - SV REMAP "xdim"
-* **SVyd** - SV REMAP "ydim"
-* **SVzd** - SV REMAP "zdim"
-* **SVRM** - SV REMAP Mode (0b00000 for Matrix, 0b00001 for FFT etc.)
-* **vf** - sets "Vertical-First" mode
-* **XO** - standard 5-bit XO field
+* **SVd** - SV REMAP x/y dim
+* **mask** - sets remap mi0-2/mo0-1 and SVSHAPEs if mr set
+* **ew** - sets element width override
+* **RS** - GPR RS<<2 to be used for Indexing
+* **yx** - 2D reordering to be used if yx=1
+* **XO** - standard 6-bit XO field
 
 # REMAP Matrix pseudocode