9. Glossary

arch

This is the overall architecture. It is the same as BFD's use of arch.

isa

Acronym for Instruction Set Architecture.

mach

This is a variant of the architecture, short for machine. It is essentially the same as BFD's use of mach.

CPU family

A group of related mach's. Simulator support is organized along "CPU family" lines to keep related mach's together under one roof to simplify things. The organization is semi-arbitrary and is up to the programmer.

model

An implementation of a mach. It is essentially akin to the argument to -mtune= in SPARC GCC (and other GCC ports).