Z80 Project - First steps (voiceover)

The z80 project - http://www.zipplet.co.uk/index.php/content/electronics_z80
Check the site for more details on this project of mine, to build a computer from scratch using components. It's still in very early stages as you can see but it's beginning to do something.

Category:

Science & Technology

Tags:

• z80
• cpu
• computer
• project
• zipplet
• homebrew
• Electronics
• DIY

[loko95ftp]

dude great computer you just need to updade to a newer OS

[mnprg]

@loko95ftp I have Windows 7 now, and most of my computer has been upgraded ;)

[RobertMOdell]

Where do you get all these old chips, like the z80 for starters.

[TheOneToxic]

you have the same voice as me :O

And i too love computers+ electronics

I plan on making a large scale z80 computer :D!!!

[TheNovum]

Wow incredible project!

[thishasgottobecrazy]

That is brave to have all of that wiring on a breadboard, 1 mistake would be a major pain!

[xzfabian]

Nice man. That look soo fucking interesting.

One question : did you finish your Z80 project?

[mnprg]

Correct that is exactly how it works.

I have also designed a system whereby the system RAM can be larger than the Z80 address space and a few banks can be swapped. This allows the interesting possibility of simple co-operative multitasking without needing relocatable code. Just load one program per bank (but have the OS allow a program to occupy multiple banks).

[linuxrobotdude]

@mnprg When you want to execute a program off of the "disk" (i figured it was a solid state thing) do you read it into ram then execute and after jump back to the program that is the console?

[mnprg]

The 'disk' is accessed via a PIC microcontroller that allows reading it in small chunks into RAM as performance does not need to be too high, this is quite fast :)