# OTBN code snippet collection

This directory contains some code snippets that give examples of how
to do various tasks in OTBN code.

  - `modexp.S`: An example of how to do modular exponentiation.
  - `pseudo-ops.S`: An example of the pseudo-operations supported by the OTBN ISA.
  - `mul256.S`: An example of a 256x256 bit multiply using the MULQACC
    instruction.
  - `mul384.S`: An example of a 384x384 bit multiply using the MULQACC
    instruction.
  - `barrett384.S`: An example of a modular multiplication kernel based on
    Barrett reduction.