matita/matita/contribs/ng_assembly2/emulator/read_write/fetch.ma

   1 (**************************************************************************)
   2 (*       ___                                                              *)
   3 (*      ||M||                                                             *)
   4 (*      ||A||       A project by Andrea Asperti                           *)
   5 (*      ||T||                                                             *)
   6 (*      ||I||       Developers:                                           *)
   7 (*      ||T||         The HELM team.                                      *)
   8 (*      ||A||         http://helm.cs.unibo.it                             *)
   9 (*      \   /                                                             *)
  10 (*       \ /        This file is distributed under the terms of the       *)
  11 (*        v         GNU General Public License Version 2                  *)
  12 (*                                                                        *)
  13 (**************************************************************************)
  14
  15 (* ********************************************************************** *)
  16 (*                          Progetto FreeScale                            *)
  17 (*                                                                        *)
  18 (*   Sviluppato da: Ing. Cosimo Oliboni, oliboni@cs.unibo.it              *)
  19 (*   Sviluppo: 2008-2010                                                  *)
  20 (*                                                                        *)
  21 (* ********************************************************************** *)
  22
  23 include "emulator/read_write/Freescale_fetch.ma".
  24 include "emulator/read_write/IP2022_fetch.ma".
  25 include "emulator/status/status_getter.ma".
  26
  27 ndefinition fetch ≝
  28 λm,t.λs:any_status m t.
  29  match m with
  30   [ HC05 ⇒ fetch_byte
  31   | HC08 ⇒ Freescale_fetch_byte_or_word
  32   | HCS08 ⇒ Freescale_fetch_byte_or_word
  33   | RS08 ⇒ fetch_byte
  34   | IP2022 ⇒ IP2022_fetch_byte_or_word
  35   ] m t s (get_pc_reg … s).