Changes
== Technical ==
ROMs are selected using the normal ROM selection I/O port (DFxx).
* If 'rom ROM read' is active then CPC will see 16KB 16 KB pages from the X-MEM flash at rom ROM slots 0-156 and 8-31. If boot from CPC, then ROM 0 will be from CPC.
* If 'free' is active, the CPC will also see 16KB 16 KB pages from the X-MEM flash at &40-&4f. All are visible regardless of booting from CPC or X-MEM. ROM select &47 contains the alternate lower ROM.
* When boot from CPC is active, OS and BASIC are from CPC and not from X-MEM but they can still be accessed at &40-&4f if free is set.
==== 3. Burning ROMs ====
There are different ways to flash a ROM:* Using Firmware 3.15: You can program the ROM from BASIC into the X-MEM: CALL &B8DD,<source>,<rom_id>
i.e. “CALL &B8DD,&4000,15” set the ROM 15 with 16K loaded at &4000.
* Using FutureOS: Use the convenient [[ROManager]] to manage all your ROMs.
=== FutureOS Lower ROM ===
A4: Try to boot with the ESC key pressed, then apply the X-MEM rescue pass.
[[Category:Memory expansions]][[Category:Expansion ROM]]
[[Category:FutureOS]]
[[Category:Peripherals]]
Website: [http://centpourcent.net centpourcent.net]
