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1 (**************************************************************************)
2 (*       ___                                                              *)
3 (*      ||M||                                                             *)
4 (*      ||A||       A project by Andrea Asperti                           *)
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11 (*        v         GNU General Public License Version 2                  *)
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13 (**************************************************************************)
14
15 include "arithmetics/nat.ma".
16
17 definition CONFIG_TAPE ≝ 0.
18 definition PROGRAM_TAPE ≝ 1.
19 definition WORKING_TAPE ≝ 2.