From: lkcl <lkcl@web>
Date: Thu, 23 Jun 2022 18:10:49 +0000 (+0100)
Subject: (no commit message)
X-Git-Tag: opf_rfc_ls005_v1~1563
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=350afa607c682d96098de9c645eea1227dca414d;p=libreriscv.git

---

diff --git a/openpower/sv/svstep.mdwn b/openpower/sv/svstep.mdwn
index 366a6705d..cee53a613 100644
--- a/openpower/sv/svstep.mdwn
+++ b/openpower/sv/svstep.mdwn
@@ -24,6 +24,15 @@ Form: SVL-Form (see [[isatables/fields.text]])
 
 Instruction format:
 
-    svstep RT,SVi,vf
-    svstep. RT,SVi,vf
-
+    svstep RT,SVi,vf  (Rc=0)
+    svstep. RT,SVi,vf (Rc=1)
+
+When `vf=1` then the REMAP Schedule for a given SVSHAPE, specified
+in `SVi` (values 0-3 are legal) may be
+returned in `RT`. To obtain the full set of possible computed element
+indices use `svstep RT.v,SVI,1` which will store all computed element
+indices, starting from RT.  If Rc=1 then a co-result Vector of CR Fields
+will also be returned, comprising the "end-points" of each of the inner
+loops when either Matrix Mode or DCT/FFT is set.  In other words,
+for example, when the `xdim` inner loop reaches the end and on the next
+iteration it will begin again at zero, the CR Field `EQ` will be set.