xref: /src/external/lgpl3/gmp/dist/mpn

Copyright 1996, 1999 Free Software Foundation, Inc.

This file is part of the GNU MP Library.

The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of either:

  * the GNU Lesser General Public License as published by the Free
    Software Foundation; either version 3 of the License, or (at your
    option) any later version.

or

  * the GNU General Public License as published by the Free Software
    Foundation; either version 2 of the License, or (at your option) any
    later version.

or both in parallel, as here.

The GNU MP Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received copies of the GNU General Public License and the
GNU Lesser General Public License along with the GNU MP Library.  If not,
see https://www.gnu.org/licenses/.




This directory contains all code for the mpn layer of GMP.

Most subdirectories contain machine-dependent code, written in assembly or C.
The `generic' subdirectory contains default code, used when there is no
machine-dependent replacement for a particular machine.

There is one subdirectory for each ISA family.  Note that e.g., 32-bit SPARC
and 64-bit SPARC are very different ISA's, and thus cannot share any code.

A particular compile will only use code from one subdirectory, and the
`generic' subdirectory.  The ISA-specific subdirectories contain hierachies of
directories for various architecture variants and implementations; the
top-most level contains code that runs correctly on all variants.