Design Space Exploration with A Stream Compiler
Oskar Mencer, David J. Pearce, Lee W. Howes, Wayne Luk
[IEEE Conference on Field Programmable Technology, Tokyo, Dec. 2003]

abstract.

We consider speeding up general-purpose applications with hardware accelerators. 
Traditionally hardware accelerators are tediously hand-crafted to achieve top 
performance. ASC (A Stream Compiler) simplifies exploration of hardware 
accelerators by transforming the hardware design task into a software design 
process using only  gcc  and  make  to obtain a hardware netlist. ASC enables 
programmers to customize hardware accelerators at three levels of abstraction: 
the architecture level, the functional block level, and the bit level. 
All three customizations are based on one uniform representation: 
a single C++ program with custom types and operators for each level of abstraction. 
This representation allows ASC users to express and reason about the design space, 
extract parallelism at each level and quickly evaluate different design choices. 
In addition, since the user has full control over each gate-level resource in the 
entire design, ASC accelerator performance can always be equal to or better than 
hand-crafted designs, usually with much less effort. We present several ASC 
benchmarks, including wavelet compression and Kasumi encryption.