Editing Processor register (section)

== {{Anchor|RS}}Size ==
Registers are normally measured by the number of [[bit]]s they can hold, for example, an ''[[8-bit computing|8-bit]] register'', ''[[32-bit computing|32-bit]] register'', ''[[64-bit computing|64-bit]] register'', ''[[128-bit computing|128-bit]] register'', or more. In some [[instruction set architecture|instruction sets]], the registers can operate in various modes, breaking down their storage memory into smaller parts (32-bit into four 8-bit ones, for instance) to which multiple data (vector, or [[one-dimensional array]] of data) can be loaded and operated upon at the same time. Typically it is implemented by adding extra registers that map their memory into a larger register. Processors that have the ability to execute single instructions on multiple data are called [[vector processor]]s.