Title
An Efficient Graph Representation For Arithmetic Circuit Verification
Abstract
In this paper, we propose a new data structure called multiplicative power hybrid decision diagrams (*PHDDs) to provide a compact representation for functions that map Boolean vectors into integer or floating-point (FP) values. The size of the graph to represent the IEEE FP encoding is linear with the word size. The complexity of FP multiplication grows linearly with the word size. The complexity of FP addition grows exponentially with the size of the exponent part, but linearly with the size of the mantissa part. We applied *PHDDs to verify integer multipliers and FP multipliers before the rounding stage, based on a hierarchical verification approach. For integer multipliers, our results are at least six times faster than binary moment diagrams. Previous attempts at verifying FP multipliers required manual intervention, but we verified FP multipliers before the rounding stage automatically.
Year
DOI
Venue
2001
10.1109/43.969437
IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS
Keywords
DocType
Volume
BDD, binary moment diagram, BMD, formal verification, hybrid decision diagram, HDD, multiplicative power hybrid decision diagram, *PHDD
Journal
20
Issue
ISSN
Citations 
12
0278-0070
3
PageRank 
References 
Authors
0.51
13
2
Name
Order
Citations
PageRank
Yirng-an Chen130423.80
Randal E. Bryant292041194.64