Functional-Level Hardware Simulation with Pull-Model Data Flow. George Riley Brian Hayes Elizabeth Lynch. Overview. Discrete Event Simulation of Digital Devices The “Little Computer 3” (LC3) The Pull-Model Approach Performance Comparison Conclusions. Discrete Event Simulation.
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Functional-Level Hardware Simulation with Pull-Model Data Flow
George RileyBrian HayesElizabeth Lynch
A input, bits 0-3
Sum, bits 0 - 3
B input, bits 0-3
Four Bit Adder
Inputs and outputs continuously change at speed of light
Not likely to be the desired behavior
Synchronous device “latches” input from Async 3 on rising edge clock
Output to Async 1 only changes on falling edge clock
Effects of synchronous output changes must propagate in one-half clock cycle
The Little Computer 3
Yale Patt Textbook