Z80 Explorer

General Chit Chat about Sinclair Computers and their Clones
Post Reply
User avatar
Posts: 201
Joined: Fri Dec 19, 2008 3:04 am
Location: Northwestern Pennsylvania, USA

Z80 Explorer

Post by blittled »

If you ever wanted to know more about the inner workings of the Z80 cpu I have found an awesome application the Z80 Explorer by Goran Devic found on this site https://baltazarstudios.com/. It permits you to look at the Z80 down to the transistor level, run simulations to see what is being made active in the chip and a waveform window to see how the logic of selected nets interact. There is an experimental feature that will make logic diagrams of selected nets as well. There is also a very detailed online manual with it.

Also on his blog is a series detailing some of the logic inside the Z80. He shows how to interface an Arduino Mega to a Z80 to single step it to watch the various signals. He also has a very detailed blog on the A-Z80, a softcore Z80 on a FPGA synthesized from logic diagrams that make up the Z80. He even shows how to use the A-Z80 to run a ZX spectrum on a FPGA!

This site is a must see if you need information on the the Z80 down to the gate level!
2X Timex Sinclair 1000, ZX81, ZX80Core, 5X 16K Ram Pack, ZXBlast, ZX P file to Ear Input Signal Converter, Elf II
Posts: 30
Joined: Sun Nov 03, 2019 9:56 am

Re: Z80 Explorer

Post by avrovulcan »

Great find. I'll be having a proper look when I get some spare time.

Thanks for posting this.

Kind regards

Lardo Boffin
Posts: 1376
Joined: Sat Nov 26, 2016 2:42 am

Re: Z80 Explorer

Post by Lardo Boffin »

Very good post and find! Impressive stuff.
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
User avatar
Posts: 150
Joined: Sun Aug 10, 2014 9:58 pm
Location: Italy

Re: Z80 Explorer

Post by marste »

Very impressive indeed!
Post Reply