else b"1111" when RAMbank="111" and (A(15)='0' and A(14)='1')
else b"10" & A(15 downto 14); -- default value
* '''Ghouls'n'Ghost.dsk''': RAM is not relaxed enought to permit changing address just after knowing if Z80 does a read or a write (ROM written=> does write on RAM hidden behind)
== Effort done ==