Analyze the Simpleton Basic App: Difference between revisions
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** It hides unnecessary instruction decode and clock logic | ** It hides unnecessary instruction decode and clock logic | ||
** It gets rid of the CSR interface (because, honestly, you weren't going to use it anyway) | ** It gets rid of the CSR interface (because, honestly, you weren't going to use it anyway) | ||
** Adds a console bell at the end of the run and runcp scripts | |||
== Download == | == Download == | ||
Revision as of 00:33, 20 February 2013
Overview
Simpleton is a minimalist Convey personality that has two custom instructions. The first increments a value in an AEG register. The second uses a single memory controller to increment a value in coprocessor memory.
Advantages of using Simpleton as the start of your project include:
- It's minimalist
- It's well commented
- The top level module, personality.v is awesome:
- The port declaration is only 50 lines and no longer scary (cae_pers.v is >150 lines)
- It wraps the memory controller interfaces in to unpacked arrays so you can easily use generate loops
- It hides unnecessary instruction decode and clock logic
- It gets rid of the CSR interface (because, honestly, you weren't going to use it anyway)
- Adds a console bell at the end of the run and runcp scripts
Download
All of Chad's Convey projects are located on the RCL SVN. To checkout:
svn co svn://rcl-1.ece.iastate.edu/projects/convey/
Open and analyze the following files, learn the directory structure, etc:
- /README
- /cae_simpleton/src/run
- /cae_simpleton/src/runcp
- /cae_simpleton/src/UserApp.c
- /cae_simpleton/src/cp.s
- /cae_simpleton/sim/CaeIsa.cpp
- /cae_simpleton/verilog/personality.v
- /cae_simpleton/coregen/README
- /cae_simpleton/phys
- /cae_simpleton/makefile.include
- /personalities/customdb
- /personalities/65100.1.1.0/