... be affected by the 'early timing/late timing' issue where the Spectrum ... , you may always need to test if you're on late ...

... by the 'early timing/late timing' issue where the ... may always need to test if you're on ... switch the early/late timing setting in Spectaculator and ... the interrupt routine and timing everything with EI/HALT, ... something I need to test for before release, but ...

... /> In meantime i also tested Timing Tests v1.0:
[url ... tests, but zxmak2 failed on test 12 (both contended and uncontended ...

... suspect that there is possible timing mistake because letters looks not ... and try some of these test programs:
[url]http://www18 ... /> This is an example, small test demo called "brightminer":
[IMG ...

... ]Which emulator is closest in timing to an actual (48k) ...
Hmm.
Getting accurate timing for sound is going to ... test. I think it is useless to discuss about abstract timing ... without looking into test...

...

... this count; you can test this for yourself over ... . This is our approximated timing for tone 1.
timing value as for standard ... this tape throw following timing approximations: 2156.25, ... is the most difficult timing to be approximated, due ...

... keep a copy of this test version. Perhaps someone else have ... /> According to the documentation, Rotatrix timing can be configured using POKE ... 64868,0 for "early timing" or POKE 64868,87 for ...

@guesser - you're right. The timing diagram on P130 shows a ... these figures match your overscan test measurements? I guess they're ... visible area using the overscan test? The vsync will kick-off ...

... ]@guesser - you're right. The timing diagram on P130 shows a ... these figures match your overscan test measurements? I guess they're ... visible area using the overscan test? The vsync will kick-off ...

... brand new information about TK90X timing:
[LIST]
[*] Memory ... Although this is not a test specifically about contention, in practice ... all graphics look perfect in test TK-3: 13472T
[*] ... all graphics look perfect in test TK-4: 11756T
[*] ...

... different value (data collision)...
Test this OUT with disconnect messenger ... GAL, though.[/QUOTE]

Test messenger with removed eprom and ... analyzer (24Mhz clock) and compare timing of output signals on original ...

... /> [/LIST]
The performed test checks the timings of an ... label".

Executing this test on a Spectrum 128K produces ... it matches the memory contention timing reported earlier (as expected).< ... sure).

The test program used here is called ...

... 'll also pass that last test :)[/QUOTE]
I just executed ... . Indeed it passed the last test, but not the first one ... is also emulating TK90X border timing as if it was 5602 ...

... these or the associated RC timing circuits could cause odd behaviour ... the ROM code's RAM test and this will reveal what ...

... these or the associated RC timing circuits could cause odd behaviour ... the ROM code's RAM test and this will reveal what ... Zorn, only got a basic test bed here, no oscilloscope unfortunately ...

... . Even the almost totally accurate timing and screen effects we now ... of it's features and test them on the emulator.

[QUOTE=aowen;652725]Does it pass the BorderTrix test?[/QUOTE]
In fairness, quite a lot of real 48K Spectrums probably don't pass "the BorderTrix test" either. It's a bit flaky, timing-wise, after all.

... "the BorderTrix test" either. It's a bit flaky, timing-wise, after ... Spectrum should pass the BorderTrix test. It's only after they ...

... probably far from the greatest test of emulator accuracy is all ... a timing issue with the emulator. BorderTrix is an excellent test for ... this because it's probably about the most timing ...

... be some sort of special test of accuracy.

I ... , and *deliberate* tests of emulator timing accuracy exist.

... be some sort of special test of accuracy.[/quote]
... usefulness of BorderTrix as a test case is falsifiable. You can ... and *deliberate* tests of emulator timing accuracy exist.[/QUOTE]

test of 128 emulation accuracy because ...

... that developments concerning critical timing issues and obscure undocumented ... t know enough about timing critical code to contribute ... we can use to test timing accuracy, whether its intentionally ... that likewise had critical timing issues (anyone tried DigiSID ...

... emulator?[/QUOTE]
As a test for early/late timings, it ... which.

A better test might be [url=http://www ... /op_timing.php]Richard Butler's Timing Tests[/url] as there's ... from the outset specifically to test for early/late timings.

... on all Spectrums from a timing perspective - in other words, regenerating ... I need to make a test that simulates ZX contention, then ... go and test the clock recovery with a ...

... on all Spectrums from a timing perspective - in other words, regenerating ... I need to make a test that simulates ZX contention, then ... go and test the clock recovery with a ...

... a whole frame, so the timing would be completely off.
timing at all, just light intensity ... up one per frame and test the gun light level. But ...

... you don't rely on timing at all, just light intensity ... up one per frame and test the gun light level. But ... on the CRT raster beam timing, but they had more hardware ... inside for timing which the early ones did ...