Assertion: register | /r/CapableOf | simplify indexing modes
Facets:
value: mostly
type: DEGREE
Source sentences:
text: In some architectures (such as SPARC and MIPS), the first or last register in the integer register file is a pseudo-register in a way that it is hardwired to always return zero when read (mostly to simplify indexing modes), and it cannot be overwritten.