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author
lkcl
<lkcl@web>
Sun, 3 Jul 2022 09:46:43 +0000
(10:46 +0100)
committer
IkiWiki
<ikiwiki.info>
Sun, 3 Jul 2022 09:46:43 +0000
(10:46 +0100)
openpower/sv/svstep.mdwn
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diff --git
a/openpower/sv/svstep.mdwn
b/openpower/sv/svstep.mdwn
index d3f3e9f7377224faac43f709c35744b7dedc39f7..9b094b3560c0f5cef9e783c27bc303f2394390a1 100644
(file)
--- a/
openpower/sv/svstep.mdwn
+++ b/
openpower/sv/svstep.mdwn
@@
-27,15
+27,19
@@
Instruction format:
# Description
# Description
-When `vf=1` then stepping occurs. When `vf=0` svstep may be used
-to enquire about the REMAP Schedule, without altering internal
+svstep may be used
+to enquire about the REMAP Schedule. When `vf=1` then stepping occurs. When `vf=0` the enquiry is performed
+ without altering internal
state. If `SVi=0, Rc=0, vf=0` this instruction is a `nop`.
state. If `SVi=0, Rc=0, vf=0` this instruction is a `nop`.
+The following modes are identical to those in [[sv/setvl]], returning
+identical results:
-When `SVi` is 1-4 the REMAP Schedule for a given SVSHAPE may be
+
*
When `SVi` is 1-4 the REMAP Schedule for a given SVSHAPE may be
returned in `RT`. SVi=1 selects SVSHAPE0 current state,
through to SVi=4 selects SVSHAPE3.
returned in `RT`. SVi=1 selects SVSHAPE0 current state,
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 5, `SVSTATE.srcstep` is returned.
+* When `SVi` is 6, `SVSTATE.dststep` is returned.
+
As this is a Single-Predicated (1P) instruction, predication may be applied
to skip (or zero) elements.
As this is a Single-Predicated (1P) instruction, predication may be applied
to skip (or zero) elements.