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-rw-r--r--src/lem_interp/interp_interface.lem8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/lem_interp/interp_interface.lem b/src/lem_interp/interp_interface.lem
index 6fe999c9..dae1ec80 100644
--- a/src/lem_interp/interp_interface.lem
+++ b/src/lem_interp/interp_interface.lem
@@ -952,13 +952,19 @@ val register_value_ones : direction -> nat -> nat -> register_value
let register_value_ones dir width start_index =
register_value Bitl_one dir width start_index
+val byte_lifted_undef : byte_lifted
+let byte_lifted_undef = Byte_lifted (List.replicate 8 Bitl_undef)
+
val byte_lifted_unknown : byte_lifted
let byte_lifted_unknown = Byte_lifted (List.replicate 8 Bitl_unknown)
-
+
val memory_value_unknown : nat (*the number of bytes*) -> memory_value
let memory_value_unknown (width:nat) : memory_value =
List.replicate width byte_lifted_unknown
+val memory_value_undef : nat (*the number of bytes*) -> memory_value
+let memory_value_undef (width:nat) : memory_value =
+ List.replicate width byte_lifted_undef
(* lengths *)