CR0 (if Rc=1)
-
-
-* `SVi=1`: test inner middle and outer
- loop end conditions from SVSTATE0 and store in CR.EQ CR.LE CR.GT
-* `SVi=2`: test SVSTATE1 (and return conditions)
-* `SVi=3`: test SVSTATE2 (and return conditions)
-* `SVi=4`: test SVSTATE3 (and return conditions)
-* `SVi=5`: `SVSTATE.srcstep` is returned.
-* `SVi=6`: `SVSTATE.dststep` is returned.
-* `SVi=12`: `SVSTATE.pack` is set to zero and `SVSTATE.unpack` set to zero
-* `SVi=13`: `SVSTATE.pack` is set to zero and `SVSTATE.unpack` set to zero
-* `SVi=14`: `SVSTATE.pack` is set to zero and `SVSTATE.unpack` set to zero
-* `SVi=15`: `SVSTATE.pack` is set to zero and `SVSTATE.unpack` set to zero
-
**Description**
svstep may be used
State. When `vf=1` then stepping occurs.
When `vf=0` the enquiry is performed without altering internal
state. If `SVi=0, Rc=0, vf=0` the instruction is a `nop`.
+
The following Modes exist:
* `SVi=0`: appropriately step srcstep, dststep, subsrcstep and subdststep to the next