@techreport{TR-IC-03-29,
  number = {IC-03-29},
  author = {Marcus Bartholomeu and Sandro Rigo and
           Rodolfo Azevedo and Guido Araujo},
  title = {Emulating Operating System Calls in Retargetable {ISA} Simulators},
  month = {December},
  year = {2003}, 
  institution = {Institute of Computing, University of Campinas},
  note = {In English, 16 pages.
    \par\selectlanguage{english}\textbf{Abstract}
       In this paper, we propose a method that enables operating
       system calls from inside architecture simulators.  The proposed
       framework provides support to file I/O and dynamic memory
       systems, and can be incorporated into any ISA simulator, at the
       instruction or cycle-accurate levels.  It enables calls to
       POSIX-compatible system routines in a simulated application,
       without requiring any change to the application code.  Since
       file I/O is performed transparently, the input and output data
       for the application program is read/written directly from/to
       the host filesystem, and all console operations are redirected
       to the host console.  This framework was tested in ISA
       simulators synthesized from models written in the ArchC
       Architecture Description Language, but it can be incorporated
       into any ADL or hand-coded simulator.  Instruction and
       cycle-accurate models, for both MIPS I and SPARC V8
       architectures have been thoroughly evaluated by successfully
       running programs from the Mibench and MediaBench benchmarks.
  }
}