doc/usage/cmd/cp.rst: document that overlapping regions are supported
Now that the cp command is changed to use memmove() internally, update
the documentation to explicitly state that overlapping regions are
allowed.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
diff --git a/doc/usage/cmd/cp.rst b/doc/usage/cmd/cp.rst
index 12a24e1..67360e3 100644
--- a/doc/usage/cmd/cp.rst
+++ b/doc/usage/cmd/cp.rst
@@ -19,7 +19,8 @@
The cp command is used to copy *count* chunks of memory from the *source*
address to the *target* address. If the *target* address points to NOR flash,
-the flash is programmed.
+the flash is programmed. When the *target* address points at ordinary memory,
+memmove() is used, so the two regions may overlap.
The number bytes in one chunk is defined by the suffix defaulting to 4 bytes: