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This is the overall architecture. It is the same as BFD's use of arch.
Acronym for Instruction Set Architecture.
This is a variant of the architecture, short for machine. It is essentially the same as BFD's use of mach.
A group of related mach's. Simulator support is organized along “cpu family” lines to keep related machs together under one roof to simplify things. The organization is semi-arbitrary and is up to the programmer.
An implementation of a mach. It is essentially akin to the argument
to -mtune=
in SPARC GCC (and other GCC ports).
An instruction field.
An instruction format, as specified by the instruction's fields.
An instruction semantic format.
This is different from iformat
.
For example, if an operand is referred to in one mode by
one instruction and in a different mode by another instruction, then these
two insns would have different sformats even if they have the same iformat.
An instruction.
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