(gmp.info.gz) Assembler Code Organisation
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(gmp.info.gz) Assembler Coding
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Code Organisation
-----------------
The various `mpn' subdirectories contain machine-dependent code, written
in C or assembler. The `mpn/generic' subdirectory contains default
code, used when there's no machine-specific version of a particular
file.
Each `mpn' subdirectory is for an ISA family. Generally 32-bit and
64-bit variants in a family cannot share code and have separate
directories. Within a family further subdirectories may exist for CPU
variants.
In each directory a `nails' subdirectory may exist, holding code with
nails support for that CPU variant. A `NAILS_SUPPORT' directive in each
file indicates the nails values the code handles. Nails code only
exists where it's faster, or promises to be faster, than plain code.
There's no effort put into nails if they're not going to enhance a
given CPU.
Info Catalog
(gmp.info.gz) Assembler Coding
(gmp.info.gz) Assembler Coding
(gmp.info.gz) Assembler Basics
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