Difference between revisions of "Y-MEM"
From CPCWiki - THE Amstrad CPC encyclopedia!
m (→Software) |
|||
| Line 10: | Line 10: | ||
The Y-MEM (RAM and ROM) is fully supported by [[FutureOS]] | The Y-MEM (RAM and ROM) is fully supported by [[FutureOS]] | ||
| + | [[Category:Memory expansions]][[Category:Expansion ROM]] | ||
[[Category:FutureOS]] | [[Category:FutureOS]] | ||
[[Category:Peripherals]] | [[Category:Peripherals]] | ||
Revision as of 05:27, 11 March 2018
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.
The X-MEM allows to access 512 KB RAM using the port &7Fxx. But the Y-MEM addresses another 512 KB using the port &7Exx.
Using the X-MEM and the Y-MEM together provides 1 MB of expansion RAM and 1 MB of Flash-ROM for the CPC or Plus computers.
Software
The Y-MEM (RAM and ROM) is fully supported by FutureOS
