DocumentCode :
3171217
Title :
A novel floating point comparator using parallel tree structure
Author :
Samuel, Anuja T. ; Senthilkumar, Jawahar
Author_Institution :
ECE Dept., Anna Univ., Chennai, India
fYear :
2015
fDate :
19-20 March 2015
Firstpage :
1
Lastpage :
6
Abstract :
In recent years, floating point numbers are widely adopted due to its good robustness against quantization errors and high dynamic range capabilities. In this paper, a novel single-precision floating point comparator design is proposed. A parallel prefix tree structure is literally the back bone of this comparator design. This is designed using Verilog code, simulated and synthesised using CADENCE ENCOUNTER tool with TSMC 180nm technology. The proposed comparator fully supports single precision floating-point comparisons, as defined in the IEEE 754 standard. The proposed floating point comparator design exploits the advantages of structural reusability. Cadence Encounter synthesis for a 32-b floating point comparator shows a worst case input-output delay of 3.014 ns and a total power dissipation of 91.8μW using 0.18-μm TSMC technology. The replacement of NOR-NAND gate using OR gate in the decision module incurs the improvement in the performance which thereby outperforms the existing design.
Keywords :
comparators (circuits); floating point arithmetic; hardware description languages; logic design; logic gates; Cadence Encounter synthesis; Cadence Encounter tool; IEEE 754 standard; NOR-NAND gate; OR gate; TSMC technology; Verilog code; decision module; floating point numbers; parallel prefix tree structure; power 91.8 muW; single precision floating-point comparisons; single-precision floating point comparator design; size 180 nm; structural reusability; total power dissipation; worst case input-output delay; Clocks; Computer architecture; Computers; Delays; Logic gates; Microprocessors; Standards; Floating point number; IEEE 754 format; parallel prefix tree;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuit, Power and Computing Technologies (ICCPCT), 2015 International Conference on
Conference_Location :
Nagercoil
Type :
conf
DOI :
10.1109/ICCPCT.2015.7159395
Filename :
7159395
Link To Document :
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