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Last change
on this file since 3003 was
2946,
checked in by tranquil, 8 years ago
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main novelties:
- there is an in-built stack_usage nat in joint states, at the base of the new division of RTL's semantics (with separate stacks, with separate stacks but with an artificial overflow error, with a unique stack)
- a premain is added semantically to the global env, so initial cost label and main call and return are observed
- proper initialization is now in LINToASM (to be sure, endianess should be checked ;-)
The update breaks proofs of back end atm. compiler.ma should be okay, but I have not had time to complete its compilation.
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File size:
1.7 KB
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| 1 | |
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| 2 | (**************************************************************************) |
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| 3 | (* ___ *) |
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| 4 | (* ||M|| *) |
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| 5 | (* ||A|| A project by Andrea Asperti *) |
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| 6 | (* ||T|| *) |
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| 7 | (* ||I|| Developers: *) |
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| 8 | (* ||T|| The HELM team. *) |
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| 9 | (* ||A|| http://helm.cs.unibo.it *) |
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| 10 | (* \ / *) |
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| 11 | (* \ / This file is distributed under the terms of the *) |
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| 12 | (* v GNU General Public License Version 2 *) |
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| 13 | (* *) |
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| 14 | (**************************************************************************) |
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| 15 | |
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| 16 | (* just an axiom stub *) |
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| 17 | include "ERTL/ERTLToERTLptr.ma". |
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| 18 | include "ERTL/ERTL_semantics.ma". |
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| 19 | include "ERTLptr/ERTLptr_semantics.ma". |
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| 20 | include "joint/Traces.ma". |
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| 21 | include "common/StatusSimulation.ma". |
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| 22 | |
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| 23 | axiom ertl_to_ertlptr_ok: |
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| 24 | ∀prog.∀stack_sizes. |
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| 25 | let trans_prog ≝ ertl_to_ertlptr prog in |
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| 26 | ∃[1]R. |
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| 27 | status_simulation |
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| 28 | (joint_status ERTL_semantics prog stack_sizes) |
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| 29 | (joint_status ERTLptr_semantics trans_prog stack_sizes) R ∧ |
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| 30 | ∀init_in.make_initial_state |
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| 31 | (mk_prog_params ERTL_semantics prog stack_sizes) = OK … init_in → |
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| 32 | ∃init_out. |
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| 33 | make_initial_state |
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| 34 | (mk_prog_params ERTLptr_semantics trans_prog stack_sizes) = |
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| 35 | OK ? init_out ∧ |
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| 36 | R init_in init_out. |
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