It is worth noting that the Z80 is the only major computer CPU in the history of microelectronics that does not use any dynamic registers.
After I got bored toggling in programs (no cassette storage and no UV-EPROM programmer), I bought a Nascom 1, but still couldn't afford an assembler, so I became very adept at hand-assembly - I still remember that "INC HL" is 0x23.How sad is that?
You can't supply a clock signal to the Z80 from an IO port, you need a high frequency, about 2-4MHz.
I assume that the Z80 can overheat even if it's broken. Is it right ?