ULA 128 Timing Test

Author: azesmbog
Release date: 2012-10-06 ^{(provided by the author)}
Links: Discord post
Download: tap _^(hosted) - zip _{^{(Discord post)}}

Description

Expected results

Zilog NMOS

Zilog CMOS

Results on real hardware

ZX Spectrum + 128K (ES, Version 2-1, CPU GSS Z8400APS/8511, ULA 7K010E5)

Tested by Marta Sevillano Mancilla

48K mode

128K mode

ZX Spectrum +2 (ES, Z70500 Iss 3, CPU Zilog Z8400APS/8622)

Tested by Marta Sevillano Mancilla

48K mode

128K mode

ZX Spectrum +2 (ES) - 48K mode

Tested by ICEknight
https://www.youtube.com/watch?v=vVTb65WmSxU

ZX Spectrum +2 (ES) - 128K mode

Tested by ICEknight
https://www.youtube.com/watch?v=GyQKfH7avfM