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Karlos wrote::lol:I've still got some Z80 and Z80-180 evaluation kits somewhere. The z80-180 is pretty cool. Runs at (gasp) double digit clockspeeds, has multiply and divide instructions (unlike its' predecessor), has an MMU supporting a meg of page mapped memory, on board UARTs etc.At one point a friend and I were hell bent on an 'upgrade' design for the speccy that would use the z80-180 at 10 MHz and an eeprom containing a reassembled version of the original basic rom with various improvements built in. We wanted a 1Mb speccy, complete with task-switching kernel that supported an 'emulated' 48K mode. Never finished the design though :-(