If it is not too late for requests - would it be possible to emulate the ROMY mod (4MB additional ROM space in $1000000-$13FFFFF range)? See here:
http://eab.abime.net/showthread.php?p=1176767.
This could be very useful for ROMDisk (
https://github.com/cnvogelg/romdisk) users - for us the 1MB ROM space is not really that much.
Or, maybe some more advanced configuration would be possible - like allowing the user to put any ROM image any size at any specified location? This would allow to emulate other mods, like the 2MB ROM:
http://leblogdecosmos.blogspot.com/2...-mo-a1200.html.