diff options
Diffstat (limited to 'mips')
| -rw-r--r-- | mips/mips_extras.v | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/mips/mips_extras.v b/mips/mips_extras.v index 6a6aed5c..626b4109 100644 --- a/mips/mips_extras.v +++ b/mips/mips_extras.v @@ -143,7 +143,7 @@ Definition euclid_modulo (m n : Z) `{ArithFact (n > 0)} : {z : Z & ArithFact (0 refine (existT _ (ZEuclid.modulo m n) _). constructor. destruct H. -assert (Zabs n = n). { rewrite Zabs_eq; auto with zarith. } +assert (Z.abs n = n). { rewrite Z.abs_eq; auto with zarith. } rewrite <- H at 3. lapply (ZEuclid.mod_always_pos m n); omega. Qed. @@ -160,3 +160,12 @@ Definition prerr_string (_:string) : unit := tt. Definition putchar {T} (_:T) : unit := tt. Require DecimalString. Definition string_of_int z := DecimalString.NilZero.string_of_int (Z.to_int z). + + +Lemma MEMr_wrapper_lemma : forall size : Z, 8 * size = 8 * (8 * size รท 8). +intros. +rewrite Z.mul_comm. +rewrite Z.quot_mul; auto with zarith. +Qed. +Hint Resolve MEMr_wrapper_lemma : sail. + |