> However, the topic of port I/O and MMIO reminds me of some activity
> by RayeR and others regarding low-level configuration to speed up
> access to PCI / PCIe graphics in DOS. I think the issue was that no
> fast defaults were applied by the BIOS, slowing down VESA LFB a lot.
Video is kind of a
Hi :-)
To make this long thread a bit longer, I think that using port I/O in
delay loops used to slow down too fast games by wasting time actually
is a good idea (if you pick a safe port) BECAUSE the I/O is slow and
not cached and not subject to too smart CPUs trying to optimize it
away in fanc
>> I tried posting a much longer response to this, but it was
>> apparently rejected by the moderators. Here's a shorter one.
> As I already mentioned in the other reply to this thread, feel free
> to send me more specific replies to that article.
I'm not sure why it didn't get posted -- it got
On at 2023-04-05 03:32 +, Bret Johnson wrote:
The article is found at
https://pushbx.org/ecm/dokuwiki
/doku.php?id=blog:pushbx:2023:0321_cpu_performance_comparison
I mostly agree with you and your article, but:
fine that you agree, but at most 50% of the article is even close to
'right'.
On at 2023-04-04 21:09 +0200, tom ehlert wrote:
Dear Bret,
The article is found at
https://pushbx.org/ecm/dokuwiki/doku.php?id=blog:pushbx:2023:0321_cpu_performance_comparison
I mostly agree with you and your article, but:
fine that you agree, but at most 50% of the article is even close
>>> The article is found at
>>> https://pushbx.org/ecm/dokuwiki
>>> /doku.php?id=blog:pushbx:2023:0321_cpu_performance_comparison
>>
>> I mostly agree with you and your article, but:
>
> fine that you agree, but at most 50% of the article is even close to
> 'right'.
You're the one who said, "I mo
Dear Bret,
> The article is found at
>> https://pushbx.org/ecm/dokuwiki/doku.php?id=blog:pushbx:2023:0321_cpu_performance_comparison
> I mostly agree with you and your article, but:
fine that you agree, but at most 50% of the article is even close to
'right'.
>>> Conclusion
>>>
>>> CPU-bound
Hi,
am Dienstag, 21. März 2023 um 23:26 schrieben Sie:
> Hello!
The article is found at
> https://pushbx.org/ecm/dokuwiki/doku.php?id=blog:pushbx:2023:0321_cpu_performance_comparison
I mostly agree with you and your article, but:
>> Conclusion
>>
>> CPU-bound benchmarks are much faster on a
Hi,
A while back, I wanted to run some truly ancient commercial CGA games designed
for the XT on my Pentium Pro.
Just executing them, everything would flash past so fast that nothing was even
recognizable, let alone usable.
I tried several options provided by SLOWDOWN and nothing really see
Hi,
am Dienstag, 21. März 2023 um 23:26 schrieben Sie:
> Hello!
The article is found at
> https://pushbx.org/ecm/dokuwiki/doku.php?id=blog:pushbx:2023:0321_cpu_performance_comparison
I mostly agree with you and your article, but:
>Conclusion
>CPU-bound benchmarks are much faster on a modern
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