On Mon, May 10, 2021 at 01:18 PM, Lee Hart wrote:
The features of the Z80 that I really like are:
- simple hardware interface: single 5v supply, simple clock, logical easy-to-use address, data, and control signals.
- included dynamic RAM refresh (important then, less so today).
- rich instruction set: not just the basics, but also relative jumps, 16-bit operations, block moves, indexed addressing, etc.
- plenty of registers, including a duplicate set that can be swapped with a single fast instruction.
- an excellent fast, vectored interrupt structure.
Hi Lee,
Wow cool list of things to keep in mind. I did not know about dyno-ram refresh ability. I am still going threw the docs and filling up my parts list for the Z80MC. Wow a really awesome design here. I love this board as well as the SIO too. I have been updating some of my old (and new) info with some guys on youtube as well. I found one bright fellow that talks about the z80 called "Advent Of Computing". Fun guy to listen to, but I disagree with him about the words "micro computer" that we talk about. I call them all micros and I always will, lol
