Changeset 2946 for src/ERTLptr/ERTLptr.ma

Timestamp:

Mar 24, 2013, 11:29:01 AM (7 years ago)

Author:

tranquil

Message:

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.

File:

• src/ERTLptr/ERTLptr.ma (modified) (2 diffs)

src/ERTLptr/ERTLptr.ma

@@ -47 +47 @@
 definition ERTLptr ≝ mk_graph_params (mk_uns_params ERTLptr_uns ERTLptr_functs).
 definition ertlptr_program ≝ joint_program ERTLptr.
+unification hint 0 ≔ ⊢ ertlptr_program ≡ joint_program ERTLptr.
   
 definition ertlptr_seq_joint ≝ extension_seq ERTLptr.
@@ -52 +53 @@
   on _s : ertlptr_seq to joint_seq ERTLptr ?.
   
+definition ERTLptr_premain : ∀p : ertlptr_program.joint_closed_internal_function ERTLptr (prog_var_names ?? p) ≝
+λp.
+let l1 : label ≝ an_identifier … one in
+let l2 : label ≝ an_identifier … (p0 one) in
+let l3 : label ≝ an_identifier … (p1 one) in
+let res ≝
+  mk_joint_internal_function ERTLptr (prog_var_names … p)
+  (mk_universe … (p0 (p0 one)))
+  (mk_universe … one)
+  it 4 0 0 (empty_map …) l1 in
+(* todo: args for main? *)
+let res ≝ add_graph … l1
+  (sequential … (COST_LABEL … (init_cost_label … p)) l2)
+  res in
+let res ≝ add_graph … l2
+  (sequential … (CALL ERTLptr ? (inl … (prog_main … p)) 4 it) l3)
+  res in
+let res ≝ add_graph … l3
+  (GOTO ? l3)
+  res in
+res.
+%
+[ ** [2,3: * [2,3,5,6: #p ]] #s whd in ⊢ (??%?→?); #EQ destruct
+  %
+  [1,3,5: %{I} % whd in ⊢ (??%(??%)→?); #EQ destruct
+  |2: %
+  |4,6: % whd in ⊢ (??%%→?); #EQ destruct
+  ]
+| ** [2,3: * [2,3,5,6: #p ]] #s whd in ⊢ (??%?→?); #EQ destruct % try @I %{I I}
+| ** [2,3: * [2,3,5,6: #p ]] * whd whd in ⊢ (?%%); //
+| ** [2,3: * [2,3,5,6: #p ]] #s whd in ⊢ (??%%→?); #EQ destruct @I
+| %{l2} %{(init_cost_label … p)} %
+]
+qed.