# Basic principle
The basic principle of Simple-V is to provide a Precise-Interruptible
-Zero-Overhead register "offsetting" system which augments instructions, by
+Zero-Overhead Loop system with associated register "offsetting"
+which augments a Suffixed instruction as a "template",
incrementing the register numbering progressively *and automatically*
each time round the "loop". Thus it may be considered to be a form
of "Sub-Program-Counter" and at its simplest level can replace a large