ZX Spectrum Timing Tests 128K

Author: Butler, Richard; Butler, Tim
Release date: 2015-03-30
Links: Website, Download page
Download: szx, wav _^(hosted) - szx, wav _{^{(original URL)}}

Description

Expected results

Early timings	Late timings

Results on real hardware

ZX Spectrum + 128K (Issue 6K, CPU SGS Z4800AB1/8406, ULA 7K010E5)

Tested by Brendon Alford

Timing Tests Failed (48K Mode):
Test 4 (Contended) R=6 loop=174 sp=23305
Test 17 (Contended) R=22 loop=203 sp=23335
Test 18 (Contended) R=22 loop=203 sp=23335
Test 26 (Contended) R=75 loop=147 sp=23345
Test 33 (Contended) R=119 loop=196 sp=23315

ZX Spectrum + 128K (Issue 6U, CPU Zilog Z8400APS/8609, ULA 7K010E5)

Tested by Brendon Alford

Timing Tests Failed (48K Mode):
Test 4 (Contended) R=6 loop=174 sp=23305
Test 17 (Contended) R=22 loop=203 sp=23335
Test 18 (Contended) R=22 loop=203 sp=23335
Test 26 (Contended) R=75 loop=147 sp=23345
Test 33 (Contended) R=119 loop=196 sp=23315

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

Timing Tests Failed (48K Mode):
Test 4 (Contended) R=6 loop=174 sp=23305
Test 17 (Contended) R=22 sp=23335
Test 18 (Contended) R=22 sp=23335
Test 26 (Contended) R=75 sp=23345
Test 33 (Contended) R=119 sp=23315

ZX Spectrum +2 (0500 Iss 3, CPU Zilog Z8400APS/8622, ULA Amstrad 40056)

Tested by Brendon Alford

Timing Tests Failed (48K Mode): None