== BASIC / Firmware / CP/M ==
* [[BIOS Functions]]
* [[Locomotive BASIC]] (reference for BASIC commands, functions and error messages)
* [[Technical information about Locomotive BASIC]] (encoding of BASIC programs in memory)
* [[BIOS Functions]] (firmware routine summary)
* [[Soft968:_CPC_464/664/6128_Firmware|Soft968 Firmware Specification]] (the official Amstrad firmware documentation)
== DIY Hardware Projects ==
== Service Manuals ==
* [[Service Manuals]].* [[Soft968:_CPC_464/664/6128_Firmware]].
== Protections ==