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Author Topic: O2em Euro/Pal 50 Hz mode not working? (o2em120b5win)  (Read 1095 times)
Sdw
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« on: October 22, 2017, 07:27:40 PM »

I started noticing some things seeming off in the timing when comparing emulator and real PAL hw, for example my music routine played faster in emulator.

Just to verify things I wrote a short program that changes background color every 128th frame so I can count frames and time with a stop watch.
Frame-waiting is done with the waitvsync standard routine.

When running the emulator, I always get a frame-rate that corresponds to 60Hz, regardless if I run the emulator with the -euro switch or not. When counting on my real HW, I get the proper 50Hz.

The output in the console when running with -euro switch says:

..
Video-mode set to PAL.
Autodetecting Joystick.
Joystick 2 set to Keyboard W A S D/SPACE.
Joystick 1 set to Joystick.
Browser sorts by Gamename.
Sort order in browser set to gamename.
Video-mode set to PAL.
..

So the emulator has recognized the switch, but it still seem to run at 60Hz framerate.
Is this a known bug?
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Sdw
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Posts: 22


« Reply #1 on: December 14, 2017, 05:46:07 PM »

*bump*

No one else who has noticed this phenomenon? I guess it should be visible as PAL games playing faster in emulator than on real HW as well.
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manopac
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« Reply #2 on: December 15, 2017, 02:57:26 PM »

I will look into this (I decided to do a little more work on O2EM again ;-) )
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« Reply #3 on: December 15, 2017, 03:50:20 PM »

Really? Now?  Cheesy
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manopac
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« Reply #4 on: December 15, 2017, 07:16:24 PM »

nothing better than sitting under the South American sun and programming a bit ... maybe even trying to work on a certain game ... Wink
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« Reply #5 on: December 15, 2017, 09:04:37 PM »

 Cheesy
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Janzl
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I now can cross that bloody street...


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« Reply #6 on: December 16, 2017, 06:59:03 AM »

Dear fellow forum members,

I hereby whish to tell you that Manopac has been banned from the Videopac forums.

For how long? I don't know... and frankly I don't care. That arrogant little pr*ck. He can go to Atariage for all I care! Sitting in South America! Oh! oh! Look! Look! I'm in the sun! Coding!




B*stard...
« Last Edit: December 16, 2017, 07:09:03 AM by Janzl » Logged

Ne tirez pas sur le administrator!
manopac
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« Reply #7 on: December 17, 2017, 12:49:40 AM »

 Cheesy Cheesy Cheesy Cheesy Cheesy Cheesy Cheesy Cheesy
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Sdw
Trying to get the cartridge in...
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Posts: 22


« Reply #8 on: December 18, 2017, 12:33:18 AM »

I will look into this (I decided to do a little more work on O2EM again ;-) )

Great! If you need any assistance, just let me know!
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Rene_G7400
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« Reply #9 on: December 18, 2017, 10:08:44 AM »

nothing better than sitting under the South American sun and programming a bit

South America? Are you going to visit Rafael?
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manopac
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« Reply #10 on: December 19, 2017, 08:34:17 PM »

unfortunately not - I am on the other side of the continent ... I am in Quito, Ecuador for a while ...
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Rafael
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« Reply #11 on: December 20, 2017, 02:00:54 AM »

nothing better than sitting under the South American sun and programming a bit

South America? Are you going to visit Rafael?

At the beginning of the 20th century grandma crossed from Austria to South America and thanks to this trip the Odyssey won a new 10 games. Smiley
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Rafael
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« Reply #12 on: December 24, 2017, 03:50:44 PM »

I will look into this (I decided to do a little more work on O2EM again ;-) )

Let me know if you want some roms. On emulator, Haunted Woods hero is not able to go down the stairs. ( Huh? Huh? Huh? Huh?)
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RetroMan
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« Reply #13 on: February 10, 2018, 01:29:23 PM »

I started noticing some things seeming off in the timing when comparing emulator and real PAL hw, for example my music routine played faster in emulator.

So the emulator has recognized the switch, but it still seem to run at 60Hz framerate.
Is this a known bug?

I have the same problem running the LibRetro version in RetroArch. All games run @ 60 FPS, no matter what ROM is loaded (US O2 or EU VideoPac). Also, I tried forcing the use of the EU BIOS (G7400) instead of the default O2 BIOS, but still rock steady @ 60 FPS which is a bit too fast. I hope this can be fixed. If there's anything you want me to test, say the word!

RetroMan
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