zj2089 / nevada Goto Github PK

Copyright (C) 2011, 2012 University of Szeged
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
 1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL UNIVERSITY OF SZEGED OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*************************************

NEVADA The ARM-NEON Visualization Tool

SIMD (Single Instruction Multiple Data) instruction sets are getting more and
more widespread even in the embedded world as they offer increased computation
power. However, to efficiently use such instruction sets some experience is
needed. It is essential to try and observe the exact behaviour of small SIMD
code snippets to get that experience. Setting up the necessary environment can
be difficult, especially for newcomers, thus tools visualizing the execution of
such short snippets can greatly accelerate the learning phase.
   In cooperation with ARM we created a visualizing tool called NEVADA which
enables observing the execution of NEON instructions which is the SIMD extension
of the industry leading ARM architecture in the embedded domain. Since NEVADA
runs inside a web browser, anyone and anywhere can try NEON code without setting
up any environment.

NEVADA has the following key features:
 * Allows observation of NEON instruction sequences by interpreting them
   step-by-step or continuously.
 * The register and memory content can be displayed in various formats
   (decimal, hexadecimal or float) and data sizes.
 * The effect of the instructions on the registers are highlighted by
   colors for a better understanding
 * It can save and load the whole machine state. The state also can be
   encoded inside a URL. This feature is excellent for creating learning
   materials.

NEVADA is a free and open source tool, for more information about how to get
it, see https://github.com/szeged/nevada .

The NEVADA demo site is up at http://szeged.github.io/nevada .