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C Compilers for ASIPs - Automatic Compiler Generation with LISA (Hardcover, 2010 ed.)
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C Compilers for ASIPs - Automatic Compiler Generation with LISA (Hardcover, 2010 ed.)
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1. 1 Motivation Digital information technology has revolutionized
the world during the last few decades.
Todayabout98%ofprogrammabledigitaldevicesareactuallyembedded 132].
Theseembeddedsystemshavebecomethemainapplicationareaofinfor-
tiontechnologyhardwareandarethebasistodeliverthesophisticatedfunctionality
of today's technical devices. As shown in Fig. 1. 1(a), current
forecasts predict a
worldwideembeddedsystemmarketof$88billionin2009. Millions of Gates
40 25% 300 2004 35 Available Gates 2009 250 20% Used Gates AAGR% 30
200 Design Productivity Gap 25 15% Design Productivity Gap 20 150
10% 15 100 10 5% 50 32 55 25 50 5 20 47 43 10 8 123 0,8 0 0 0% 1993
1995 1997 1999 2001 2003 2005 America Europe Japan Asia-Pacific (a)
Global embedded systems revenue and (b) Crisis of complexity 217]
average annual growth rate(AAGR) 103] Fig. 1. 1
Embeddedsystemdesign Overthepastfewyears,
theever-increasingcomplexityandperformancerequi-
mentsofnewwirelesscommunications,
automotiveandconsumerelectronicsapp- cations are changing the way
embedded systems are designed and implemented today.
InconformitywithMoore'slaw 99], onedrivingforceistherapidprogress
in deep-submicron process technologies. Chip designers and
manufacturers have constantly pushed the envelope of technological
and physical constraints. In fact, designers have more gates at
their disposal than ever before. However, current M. Hohenauer, R.
Leupers, C Compilers for ASIPs, 1 DOI10. 1007/978-1-4419-1176-6 1,
C SpringerScience+BusinessMedia, LLC2010 $Billions 2 1 Introduction
mainstream-embeddedsystemdesignsarenotusingatleast50%ofthesiliconarea
availabletothem(Fig. 1. 1(b)).
Thegrowthindesigncomplexitythreatenstooutpace
thedesigner'sproductivity,
onaccountofunmanageabledesignsizesandtheneed
formoredesigniterationsduetodeep-submicroneffects.
Thisphenomenonisalso referredtoas crisis of complexity
103]andcomesalongwithexponentiallygr- ing non-recurring engineering
(NRE) costs (Fig. 1. 2) to design and manufacture chips.
Understandably, thesecostsonlyamortizeforverylargevolumesorhigh-end
products. $100. 000. 000. 000,00 $10. 000. 000. 000,00 $1. 000.
000. 000,00 $100. 000. 000,00 RTL Methodology Future Improvements
$10. 000. 000,00 1990 1995 2000 2005 2010 2015 Fig. 1.
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