"Gorf" not running fullspeed on rpi3b+

[quicksilver7837]

"Gorf" does not appear to be running fullspeed on my rpi3b+. This is very noticeable starting around stages 2-3, once the enemy ships start dive bombing. I compared with some gameplay videos of the actual cab in action. I wouldnt have though that this game would be particularly demanding though. Is this a short coming of the pi or is emulation not full speed for this game?

[quicksilver7837]

So I tested after updating from source and the game still starts to chug after the 1st level (though the first level doesnt feel completely smooth either).

[quicksilver7837]

I can try the audio option you recommended but it doesnt feel like the audio is off. Its more like the sprites movement gets very jerky when there is a lot of action on the screen. Looking at a video of actual game play I can see some slowdown on the original hardware but it still feels like its running even slower on my raspberry pi.

Here is a video of the level in question (though all levels feel slower, its very pronounced on this one):
https://youtu.be/ogmAtOMMRs4?t=351

[markwkidd]

Another term for Audio Skew, arguably more accurate, is Dynamic Rate Control: https://docs.libretro.com/tech/dynamic-rate-control/ It is more about the timing of emulation than the way the audio sounds, per se.

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On Fri, Feb 22, 2019 at 12:20 PM quicksilver7837 ***@***.***> wrote: I can try the audio option you recommended but it doesnt feel like the audio is off. Its more like the sprites movement gets very jerky when there is a lot of action on the screen. Looking at a video of actual game play I can see some slowdown on the original hardware but it still feels like its running even slower on my raspberry pi. Here is a video of the level in question (though all levels feel slower, its very pronounced on this one): https://youtu.be/ogmAtOMMRs4?t=351 — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#675 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ASphdtR7Ofcx6gucbwspAuCRIpbJncKtks5vQCbRgaJpZM4bJygZ> .

-- Mark W. Kidd http://facebook.com/markwkidd (606)536-0115

[quicksilver7837]

I see, thank you for the explanation. Unfortunately changing the audio skew didnt seem to help.

[UDb23]

Could this change implemented in later versions vs. 78 (positively) affect performance ?

• 0.115u1: Changed Z80 CPU and 2x Astrocade clock speeds to 1789772 Hz, palettesize to 512 colors and VSync to 60.054442 Hz. Added 'Speech' dipswitch.