... , it is not running :(. 2T timing of read/write cycle is ... due to +3's ULA contention. Don't know...
[/QUOTE ...

[quote=omega;221081]Timing is issue, on 128k is ... />
The +3 has no contention outside of paper areas. It ... with 16x8 cycle sequences of contention, but with 7 cycles out ...

... br /> - I was still applying contention emulation in a place where ... I shouldn't when "no contention" was selected. Now the ... /> - Fixed a bug in HALT timing, it was taking 8 states ... /> - Small optimizations.

Beware, timing is still not perfect, and ...

... I added support for Pentagon timing instead, so I can finally ... the floating bus behavior and timing. An explanation how the ULA ... the bytes without any memory contention would be nice, too.[/QUOTE ...

... , memory location (and maybe contention and timing too, if possible), without having ...

... , memory location (and maybe contention and timing too, if possible), without having ...

... this.

7) Z80 timing differences. The Z80 in a ... .

13) The RAM contention models are different between the ... machines. This would only cause timing issues, not really a crash ...

... is there to deal with timing variances between different emulators.
contention being the obvious culprit here ...

... the right instruction timings, including contention, for every opcode played back ... to attempt to deal with timing variances, the whole thing does ...

... Spectrum specific. What's more, contention on the CPC is also ... you follow the CPC's timing and build a model based ...

... Spectrum specific. What's more, contention on the CPC is also ... you follow the CPC's timing and build a model based ...

... get clobbered by the memory contention in the screen ram which ... or at least very delicate timing, as an interrupt will push ...

... . For a full description of contention, I'd recommend that people ... you're really careful with timing you could synchronize your code ...

... an example of how bad contention is, try using the Magical ... sounds awful in Spin with contention turned on though; music for ... length of the timing loops to take memory contention into account. That ...

... sounds awful in Spin with contention turned on though; music for ... length of the timing loops to take memory contention into account. That ...

... 48K users.

The timing issue is more complicated than ... cycles between interrupts. The memory contention timings are also different between ... read/writes combined with the timing tests to get an accurate ...

[QUOTE=joefish;341445]The timing issue is more complicated than ... cycles between interrupts. The memory contention timings are also different between ... read/writes combined with the timing tests to get an accurate ... due to the early/late timing differences.

... />
But the problem with timing is when I'm using ... you run into the memory contention issues, which means the code ...

... hacked some of Phil's contention testing code from fusetest that ... probes the contention pattern at a given tstate ... that one of the key timing routines needs to be called ...

... hacked some of Phil's contention testing code from fusetest that ... probes the contention pattern at a given tstate ... that one of the key timing routines needs to be called ...

... information, the game has 4 timing profiles:

1. 48K ... each line, allowing for some contention. The Pentagon version takes exactly ... T-states per line, without contention.

I'm not ...

... . If memory contention is disabled, it'll do its timing checks against ... a Pentagon, and set the timing up for that. It'll ... in the Pentagon top-border timing delay. It looks like it ...

... mode, with the contention turned on. With the contention turned off, the ... 've adjusted the +2A/+3 timing so it has its own ...

... , no INK change) so ULA contention issue would surely make black ... demo (thats gorgeous using ula timing to mask out half of ...

... (high priority)
4) is timing for muliticolors same like on ... .
4. Standard ULA timing will not change, as a ... handling must not change the timing. Palette updates however will ... be at exactly that moment (contention excepted), or very shortly ...

... pixel display area to avoid contention with you wonderful chaps who ... because we want to avoid contention with the palette updates. Loading ... issued should work, though the timing will be slightly different to ... if we want to avoid contention. Doing so when the ...

... -scanline and its affect on contention. My question then is, do ... sort out the behaviour and timing requirements. Some may not be ... remain compatible with the Spectrum timing.

But if built ...

... choice. Similarly, if there are timing issues with changing the palette ... learn and work with the contention and timing, and just trust that ...

... without affecting the normal ULA timing. Thankfully memory is fast these ... too. Currently documenting the CPU contention, which is proving tricky to ...

... /O ports. There are some timing requirements to observe when video ... is quicker even allowing for contention. The MSX also has a ...