add twin butterfly page (stub)

[libreriscv.git] / openpower / sv / svstep.mdwn

diff --git a/openpower/sv/svstep.mdwn b/openpower/sv/svstep.mdwn
index 1f19a136dbc484cb870d6705fd1c35ac917db35b..fb313dbcf81504b69899de509706eec37395c221 100644 (file)
--- a/openpower/sv/svstep.mdwn
+++ b/openpower/sv/svstep.mdwn
@@ -43,6 +43,8 @@ The following Modes exist:
   through to SVi=4 selects SVSHAPE3.
 * When `SVi` is 5, `SVSTATE.srcstep` is returned.
 * When `SVi` is 6, `SVSTATE.dststep` is returned.
+* When `SVi` is 7, `SVSTATE.ssubstep` is returned.
+* When `SVi` is 8, `SVSTATE.dsubstep` is returned.
 * When `SVi` is 0b1100 pack/unpack in SVSTATE is cleared
 * When `SVi` is 0b1101 pack in SVSTATE is set, unpack is cleared
 * When `SVi` is 0b1110 unpack in SVSTATE is set, pack is cleared
@@ -63,7 +65,7 @@ As a 32-bit instruction, `svstep` may be itself be Vector-Prefixed, as
 as it will in Vertical-First Mode.
 
 Example: to obtain the full set of possible computed element
-indices use `sv.svstep RT.v,SVI,1` which will store all computed element
+indices use `sv.svstep *RT,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 "loop end-points" of each of the inner
 loops when either Matrix Mode or DCT/FFT is set.  In other words,