The '''Y-MEM''' expansion made by [[TotO ]] from [[ACME ]] is a similar expansion as the [[X-MEM]]. The difference is the addressing of RAM and ROM.
While the X-MEM addresses the lower ROM, ROMs 0-6 and 8-31, the Y-MEM addresses the ROMs from 32 to 63.
=== Software ===
The Y-MEM (RAM and ROM) is fully supported by [[FutureOS]] [[Category:Memory expansions]][[Category:Expansion ROM]][[Category:FutureOS]][[Category:Peripherals]] Website: [http://centpourcent.net centpourcent.net]