Hi.
I'm looking for any information related to Z80 CPU internals,
microcode, sequencer, etc.
Is it possible to rebuild it in Verilog/VHDL/TTL on breadboard with
all that undocumented instructions, etc?
Here is what I found so far about machine cycles, but obviously, it's
not enough:
http://www.msxarchive.nl/pub/msx/mirrors/msx2.com/zaks/z80prg02.htm