I've just recreated the Spectrum/Amstrad development system I used in the late 80s at Software Creations. This used a Tatung Einstein as the development system running Mike Webb's Z80 assembler. The assembled code was transferred by serial or parallel interface to the target machine (Spectrum/Amstrad).
Had to make a Z80 PIO board for the Spectrum. On Veroboard for that authentic 80s aesthetic.
Anyway, finally got the system working end-to-end this afternoon. I've blogged about it in three posts here.
http://www.breakintoprogram.co.uk/categ ... g-einstein
Recreated 80s Development System
Re: Recreated 80s Development System
Looks interesting - I might have to get my soldering iron out. 