Probably you have read it on this page before: one of the main components of the Amstrad CPC, the Gate Array aka Amstrad 40010, was decapped and high resolution photos were shot from the internals of this integrated circuit. Finally, Gerald found some time to reverse engineer the schematics of the Gate Array and released them in the CPCWiki forums. With the schematics it is possible to better understand what’s happening inside, find eventually existing hardware tricks / bugs and finally build a replacement of course.
Ash Evans has already “ported” the schematics to Verilog, so it is possible to use it in your own CPLD or FPGA designs.
Thanks a lot for your work to reverse engineer the last integrated circuit (for the classic Amstrad CPC), which can help us to preserve the Amstrad CPCs for the future :-)!