19.2 copy

The command copy allows to copy regions of data inside an IO space, or between different IO spaces.

This command has the following synopsis.

copy [:from offset] [:to offset] [:size offset]
     [:from_ios ios] [:to_ios ios]

All arguments are optional. When invoked with no arguments, copy does nothing.

The arguments from and size determine the region to copy. By default, this region is taken from the current IO space, but this can be overwritten using the optional from_ios argument.

The argument to tells copy where to copy the stuff. It defaults to from. Again, this offset is applied to the current IO space by default, but this can be overwritten using the to_ios argument.

Note that it is allowed for the source and destination ranges to overlap.