the only difference being that the result comes from the LD/ST
rather than from an Arithmetic operation.
+Important to note is that reduce mode is implied by Data-Dependent Fail-First.
+In other words where normally if the destination is Scalar, the looping
+terminates at the first load/store, Data-Dependent Fail-First *continues*
+just as it does in reduce mode.
+
Also a crucial difference between Arithmetic and LD/ST Data-Dependent Fail-First:
except for Store-Conditional a 4-bit Condition Register Field test is created
for testing purposes