Arquitectura Reconfigurável para Simulação de Circuitos Digitais Combinatórios
Fernando Manuel Duarte Gonçalves
José T. de Sousa
Victor Martins,
INETI –
Abstract:
Neste seminário é apresentada uma arquitectura inovadora para efectuar a simulação por hardware de circuitos digitais. Esta arquitectura baseia-se no recurso a uma unidade de processamento desenvolvida em FPGA que é composta por um datapath virtual, reconfigurável e com funcionamento em pipeline. Devido ao datapath virtual, esta solução permite simular circuitos com mais portas lógicas do que as existentes no hardware. O circuito é pré-processado por software, de forma a criar uma estrutura de dados que irá configurar o datapath virtual. Devido à arquitectura escolhida, este processamento substitui os elevados custos de mapeamento na FPGA. O simulador foi testado com os benchmarks ISCAS’85, sendo os seus resultados comparados com dois simuladores por software existentes no mercado. Os resultados obtidos permitem constatar que a arquitectura proposta proporciona reduções do tempo de simulação que são sempre superiores a duas ordens de grandeza.
Date: 2005-Jan-06 Time: 16:00:00 Room: 336
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