SimpleScalar Simulator

The directory contains the following subdirectories:

• bin:
  This contains the binaries for the simulator and cross-compiler. The one that you need to use is called sim-outorder which is the detailed microarchitecture simulator, modelling in detail an out-of-order microprocessor with branch prediction, caches and external memory.

  The cross-compiler works just like conventional gcc, except that it creates binaries for the SimpleScalar simulator.

• tests:
  This contains pre-compiled test programs for the Simplescalar machine.
• spec95-little:
  The Simplescalar executables in this directory are from the SPEC95 benchmark suite. The little refers to the fact that we are using little endian machines.
• config:
  This directory contains the default configuration. The simulator can be configured by using command-line options or by specifying a configuration file using the command-line option -config <configfilename>
• inputs:
  This contains sample inputs for the various Simplescalar executables. For example for the file perl.ss in spec95-little it contains a perl script charcount and an input file for a perl script all_grep_words. So to run this program, the following command needs to be issued in the top-level directory:
  bin/sim-outorder spec95-little/perl.ss inputs/charcount inputs/all_grep_words

  This takes roughly 15min to execute, so try running some files in tests or
  bin/sim-outorder spec95-little/perl.ss -v
  first to get a feel for what the output looks like.

Note: The simulator outputs the statistics to stderr not stdout, so piping it to less or redirecting the output will not work. Use
command |& less