1.2 Model capabilities

Fast Models attempt to accurately model the hardware, but compromises exist between speed of execution, accuracy and other criteria. A processor model might not match the hardware under certain conditions.

Fast Models can:

  • Accurately model instructions.
  • Correctly execute architecturally-correct code.
  • Model some unpredictable behavior.

Fast Models cannot:

  • Validate the hardware.
  • Model all unpredictable behavior.
  • Model cycle counting.
  • Model timing sensitive behavior.
  • Model SMP instruction scheduling.
  • Measure software performance.
  • Model bus traffic.
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