... is the comments about the timing being off compared to SPIN ... (+3 does not like that, 128 and pentagon are ok) and ... i spoke about spin, although timing is fairly accurate many of ... or IX speed differences between 128 and +3, not sure, but ...

... -reading programs into divIDE. Converting timing into ZX Spectrum (well, +3 ... 70% works good on my 128+ but later I will test ...

... as loaders usually need precise timing. I'd seen that technique ... during implementation loosen up the timing requirements so it works.
128 RAM then streaming in using ...

... area i.e. pixel-row 128 or greater), the collision detection ... on demand, providing that your timing is spot on.

... contended I/O on the 128/+2. Not sure what kind ... joystick would incur on the 128/+2 as opposed to the ... joystick/keyboard read during the timing critical stuff.

... matters for code needing exact timing.

[QUOTE=aowen;529668 ... modes been in the original 128 design it would have been ... documentation at all on the 128 ROM. It was largely a ...

... matters for code needing exact timing.[/quote]

... been in the original 128 design it would have ... at all on the 128 ROM. It was largely ... know that when the 128 was coded the only ... full assembly of the 128 editor though because Amstrad ...

... fusetest differentiate between machines through timing?[/quote]

It doesn ... should be contended on a 128.... or is that the "bug ... pages are contended on the 128, whatever the manual might say ...

... buffer which contained my border timing markers during development, and now ... border colour to mark the timing, or I can put values ... banks would have an extra 128 bytes of data so I ... wasn't critical to the timing.

Eventually, something worked ...

... .

[QUOTE]Its good timing to be making such an ... .. Does anyone know what the timing issues are associated with this ... interface

BBC Master 128 with RetroClinic DataCenterE USB Host ...

[QUOTE=kgmcneil;566364]HAd any timing issues or compatibility issues with ... broken the timing (which is normally compatible with Pentagon 128 products - not ... games are converted into that timing, along with TAP=>TRD ...

... I mess about with the timing.

[QUOTE=ccowley;566885 ... with emulators, on a 48k/128+2B/+3 it actually works ...

... =Philip Kendall;574230]Because the timing of your IM2 routine has ...
OUT Linecounterport,128 = do interrupt after 128 lines was passed.

... developers who coded for the 128 according to the specification, would ... developer would have noticed the timing was wrong when coding, and ... release is terrible on a 128, the later rack-it version ...

... of 228 TStates. Same as 128 model, with which Inves were ... />
Working out the interrupt timing will be fun. It looks ...

... of 228 TStates. Same as 128 model, with which Inves were ... ;583148]Working out the interrupt timing will be fun. It looks ...

... to BASIC, especially on a 128.

What I typically ... I only need it for timing.

I then set ...

... to BASIC, especially on a 128.

What I typically ... I only need it for timing.

I then set ...

... ;609557]128k zx has different timing so i am NOT gonna ... TO 80: POKE 65283+f,128+f: NEXT f: RANDOMIZE NOT ...

... MB. Yes, that demo is 128 only, but no it's ... that for timing (similar to what I did in the 128 demo ... [b]both[/b] 48 and 128 would be a little more ...

... 's +2A emulation with correct timing. I think SpecEmu is also ... get glitching on a ULA 128, but not on an ASIC ... 128. Only SpecEmu showed up the ...

As an interim fix:

MERGE""
...add POKE 32919,20 before the RANDOMIZE USR 24000
RUN

and it will be fine on a 128/+2.

In fact, it should be fine on a +2A/+3 as well, unless the timing is really tight?

... not hard to do a timing Spectrum 128

By the ...

... not hard to do a timing Spectrum 128[/QUOTE]
Yes, Einar ...

... were slightly different between a 128 and a 48 going off ... building is Harlequin based, so timing is exactly as the original ...

... Pentagon 128 is merely a 128k with just slightly different screen timing ...

... . This should work on 48, 128 and +2 (grey) machines.
timing all the ingame routines so ...