GIDE replacement?

[snip] [snip] Hi The GIDE is a neat circuit but finding one is difficult. They are long out of production and are hard to replicate since it uses GALs. At least the equations for the GALs are known. It also uses obscure obsolete RTC chip that is hard to find. How about instead of just replicating the GIDE convert the XT-IDE V2 circuitry to use a Z80 socket rather than an 8 bit ISA slot. The XT-IDE V2 provides a 16 bit IDE interface, an optional boot ROM, and an optional UART for remote booting capability. All of those would be useful things on Kaypro or any other Z80 computer. It would use the same "shim socket" approach as the GIDE and would be easy for anyone to use and/or replicate. Thanks and have a nice day! Andrew Lynch