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Author (up) Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico
Title Synthesizing Control Software from Boolean Relations Type Journal Article
Year 2012 Publication International Journal on Advances in Software Abbreviated Journal Intern. Journal on Advances in SW
Volume vol. 5, nr 3&4 Issue Pages 212-223
Keywords Control Software Synthesis; Embedded Systems; Model Checking
Abstract Many software as well digital hardware automatic
synthesis methods define the set of
implementations meeting the given system
specifications with a boolean relation K. In
such a context a fundamental step in the software
(hardware) synthesis process is finding effective
solutions to the functional equation defined by
K. This entails finding a (set of) boolean
function(s) F (typically represented using
OBDDs, Ordered Binary Decision Diagrams)
such that: 1) for all x for which K is
satisfiable, K(x, F(x)) = 1 holds; 2) the
implementation of F is efficient with respect
to given implementation parameters such as code
size or execution time. While this problem has
been widely studied in digital hardware synthesis,
little has been done in a software synthesis
context. Unfortunately, the approaches developed
for hardware synthesis cannot be directly used in
a software context. This motivates investigation
of effective methods to solve the above problem
when F has to be implemented with software. In
this paper, we present an algorithm that, from an
OBDD representation for K, generates a C code
implementation for F that has the same size as
the OBDD for F and a worst case execution time
linear in nr, being n = |x| the number of
input arguments for functions in F and r the
number of functions in F. Moreover, a formal
proof of the proposed algorithm correctness is
also shown. Finally, we present experimental
results showing effectiveness of the proposed
Corporate Author Thesis
Publisher IARIA Place of Publication Editor Luigi Lavazza
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1942-2628 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Sapienza @ melatti @ Serial 108
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