Changes
ROM
,/* Reserved ROM Numbers */
== Reserved ROM Numbers ==
There are two special ROM positions: ROM 0 is reserved for Basic (known as a type &80 ROM - Foreground ROM) and ROM 7 is reserved for the Disc Operating System - Not present on a 464, AMSDOS on a 6128.
The CPC464 has one internal upper ROM (ROM 0) which can be overwritten by a ROMBoard to replace Basic. The 6128 has internal ROMs 0 and 7 (0 can be overwritten but not 7). In German CPC6128 both, 0 and 7, can be overwritten.The CPC Plus 6128plus series can overwrite both 0 and 7.
The Plus CPCs don't have internal ROMs, it was "out-sourced" to the Cartridge. The cartridge is actually situated in ROM positions 128 onwards, but the ASIC in the Plus re-maps the cartridge ROMs to 0 and 7 for compatibility.
