Application-specific instruction set processor: Difference between revisions

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An '''application-specific instruction-set processor''' ('''ASIP''') is a component used in [[system-on-a-chip]] design. The [[instruction set]] of an ASIP is tailored to benefit a specific application. This specialization of the core provides a tradeoff between the flexibility of a general purpose [[Central processing unit|CPU]] and the performance of an [[ASIC]].

Interest in synthesis of Application Specific Instruction

Processor or [[ASIP]] has increased considerably and

a number of methodologies have been proposed in the

recent period. The detaled survey paper is produced by [[Manoj Kumar Jain et al.]] This paper attempts to survey the state of

the art in this area and identifies some issues which need

to be addressed. We have identified the five key steps in

ASIP design as application analysis, architectural design

space exploration, instruction set generation, code synthesis

and hardware synthesis. A broad classification of

the approaches reported in the literature is done. The paper

notes the need to broaden the architectural space being

explored and to tightly couple the various subtasks in

ASIP synthesis. [[Manoj Kumar Jain et al.]] have surveyed the art of ASIP Design Space Exploration.

Some ASIPs have a configurable instruction set. Usually, these cores are divided into two parts: ''static'' logic which defines a minimum ISA (instruction-set architecture) and ''configurable'' logic which can be used to design new instructions. The configurable logic can be programmed either in the field in a similar fashion to an [[FPGA]] or during the chip synthesis.

== Literature ==

* {{cite book |title=ASIP Design Methodologies: Survey and Issues |author=Manoj Kumar Jain, M. Balakrishnan, and Anshul Kumar |year=2001 |publisher=IEEE VLSI 2001 |___location=India |issn=1063-9667 }}

* {{cite book |title=ASIP Design Space Exploration: Survey and Issues |author=Manoj Kumar Jain and Deepak Gour |year=20011 |publisher=IJCSIS |___location=USA |issn=1947-5500 }}

* {{cite book |title=Embedded DSP Processor Design Application Specific Instruction-set Processors |author=Dake Liu |year=2008 |publisher=Elsevier Mogan Kaufmann |___location=MA |isbn=978-0-12-374123-3 }}

* {{cite book |title=Optimized ASIP Synthesis from Architecture Description Language Models |author=Oliver Schliebusch, Heinrich Meyr, Rainer Leupers |year=2007 |publisher=Springer |___location=Dordrecht |isbn=978-1-4020-5685-7 }}