Changes

CPC4MB

168 bytes added, 11 January
/* Description */
* all configuration codes are supported (0-7) and work exactly as they do in a 6128.
* I/O port decoding is: 0xxxxbbbxxxxxxxx (confirmed by TFM) where bbb are 3 bits of the bank. The other 3 bits are from the data decoded as 11bbbccc and ccc the configuration code. Yarek's site recommends that bits A14,A13,A12,A11 are set to 1 to avoid conflict with other hardware.
* accessing the upper 2MB of a 4MB expansion requires special caution to avoid conflict with other hardware expansions. See [[Standard Memory Expansions]] for details.
== Software ==
194
edits