What is wrong with DES Models Programmed in HLLs?

• “Events” are not native to programming model

• Events generated by interpreting statements

  • interpretation done using an interpreter

• There are two separate states

  • program state
  • and interpreted state

• Call to the interpreter requires context switch to interpreted state

  • often (very) expensive

• (Similar problems observed when simulating Instruction Set Architectures, or ISAs, across platforms.)

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