Bliss is a complete Alpha AXP simulation toolkit. The goal of Bliss is not to be the fastest simulator in existence, but rather to be the easiest to modify. We wrote Bliss for three reasons: First, often times new computer architecture graduate students have to spend quite a bit of time learning how to use research tools. Shortening this learning curve is our primary objective. The second reason we wrote Bliss is for use in undergraduate and graduate classes. Third, we believe the average processor widget paper should not take that long to investigate. Having a robust and easily modifiable simulation toolkit should shorten the feedback time between idea conception and evaluation.

Authors: Steven Swanson ( and Mark Oskin (

Key features