UAE4All2 Amiga Emulator for Switch (and Vita) - Page 4

rsn8887 · 07 June 2019, 17:42

So it is ok to automatically disable CIA Overlay whenever AGA chipset is enabled? The only problem would be that A4000 would not be emulated perfectly then?

thairacerjp · 07 June 2019, 21:23

@rsn8887 , thanks, it's works for me on classic workbench with the hd version and the speed is GOOD ! such lovely to see reshoot running on my Vita

, yes it missing the bleu background but the fog effect is here, great !

beginning of the first level, problem without background

rsn8887 · 08 June 2019, 02:04

How did you get such good speed and on my Vita it is sooo slow? I guess I have to play around with my config some more.

thairacerjp · 08 June 2019, 05:02

i've done nothing special ! , theses are my settings if can help

sprite colision work faultless

, you right, this game reming me project x and
ps1 project X2 had some similitudes ! , this is a good shump cause you want to try again and again

rsn8887 · 08 June 2019, 05:45

Ah your trick is you use frameskip 1 and Cpu speed 7 MHz. Yes than it works well. Of course it won’t run as butter smooth as on original Amiga. Remember frameskip 1 reduces fps from 50 to 25. I always try to use frameskip 0 for all games, to make them as smooth as possible.

But this game is very playable even with frameskip 1!

Thanks for the post and screenshots to help me figure this out.

You can safely increase sound rate to 48k to get better sound without any slowdown. 48k is the native Vita sound chip frequency and should give the best sound.

Also you can push R+Start+left/right/up/down to increase screen view to show all of the game (including bottom blue score number), and center it vertically.

thairacerjp · 08 June 2019, 21:46

thanks for the tips

iwill try with yours precious advises, did the displayed lines can have effect on speed ?

twenty90seven · 31 July 2019, 00:34

Hey rsn887, is there a 'warp' button similar to winuae which you can use to fast forward through the game especially loading screens. I am aware of the 8x floppy speed option, but was wondering if there was a warp function where the fps is sped up to fast forward.

rsn8887 · 04 August 2019, 21:11

No there’s no warp option at the moment. Good idea for a future version, thanks. But of course you can use WHDLoad and hdf files to load your games much faster and more reliably than 8x floppy speeds. I use WHDLoad for almost all my games, apart from a few that run too fast with WHDLoad or have other problems with it like RocknRoll.

twenty90seven · 06 August 2019, 04:49

Thanks RSN, Whdload and HDF files are good, but the issue with them is that save states don't always work with them. That's when I turn to floppies (for which save states work well), but the issue with floppies is the long loading times (which would make a warp function really good).

rsn8887 · 22 August 2019, 00:51

Yes I agree. I just have to find out how to implement warp mode. Currently I have no clue.

twenty90seven · 14 October 2019, 13:45

On the PS Vita TV - is there an app to make it run at 50hz? Similar to the app on Android TV which allows 50 hz mode? That would be great for Amiga

falken · 20 November 2019, 22:30

Is this project for Vita abandoned?

FOL · 21 November 2019, 12:21

Quote:

Originally Posted by falken

Is this project for Vita abandoned?

I would not have said so. Its only 3 months since last communication.
I would like to uae4arm. Thats the best emu in my opinion.

falken · 21 November 2019, 12:38

Quote:

Originally Posted by FOL

I would not have said so. Its only 3 months since last communication.
I would like to uae4arm. Thats the best emu in my opinion.

I agree, but uae4arm does not exist for PS Vita

FOL · 21 November 2019, 12:40

Quote:

Originally Posted by falken

I agree, but uae4arm does not exist for PS Vita

Mis-typed, should have read "like to see",

rsn8887 · 21 November 2019, 14:33

This project is not abandoned look at release history. I made a release just two months ago. It had all the features I wanted already a while ago.

Native 50 Hz mode (without micro stutters) is not possible on Vita or Switch, hardware is limited to 60 Hz. Get a PC or Mister FPGA for that.

I am not sure how optimized uae4arm is but I am pretty sure it uses more recent WinUAE code and not fame 68k optimized cpu. WinUAE code is also used in Retroarch PUAE on Switch, and causes slowdown in many games. All those games run full speed on UAE4ALL2 on Switch.

lesta_smsc · 22 November 2019, 02:51

UAE4All2 definitely runs at an incredible speed. I don't even have to put on frame skip! Unfortunately, some games run a little too quickly. It would be great if there was a way to improve this... could you implement a CPU speed toggle (as there was in the VSH and some emulators) to enable slowing down the CPU in order to overcome this?

rsn8887 · 22 November 2019, 06:41

Games only run too fast when you use whdload and A1200 config to run A500 games. Try to use A500 config and run the games from .adf floppy images instead.

Alternatively, try setting cpu to 68000, it sometimes helps. For some games that run too fast even when using A500 config and .adf, try setting Blitter: Normal and reboot. Blitter: Normal can help if games run too fast, but the Blitter setting requires a reboot to take effect.

FOL · 22 November 2019, 09:54

Quote:

Originally Posted by rsn8887

Games only run too fast when you use whdload and A1200 config to run A500 games. Try to use A500 config and run the games from .adf floppy images instead.

Alternatively, try setting cpu to 68000, it sometimes helps. For some games that run too fast even when using A500 config and .adf, try setting Blitter: Normal and reboot. Blitter: Normal can help if games run too fast, but the Blitter setting requires a reboot to take effect.

I find, setting CPU speed lower fixes speed issues. Not sure why it does this, anything over 14MHz causes issue. Also JIT can cause wierd issues too.

RiotRetroGaming · 21 August 2020, 17:59

Quote:

Originally Posted by rsn8887

I succeeded in porting the Amiga emulator UAE4All2 to the Switch. The port is based on my previous work on the Vita port.

Download is here, I will keep parity between both Vita and Switch releases as much as possible:
https://github.com/rsn8887/uae4all2/releases/latest

There are some problems still on Switch, e.g. savestates not working, Sleep mode causing problems, etc. But I think it already runs quite nicely.

Wow you actually ported this, so cool!
I've just installed it... tried installing 3.1.4 with hardfiles and for some reason the installer asked for an amiga 2000 modules floppy on install.
I'm going to try and just put the kick31.rom in there and try again.

Any ideas give me a shout!

07 June 2019, 21:23	#62
thairacerjp Registered User Join Date: Aug 2016 Location: FRANCE Posts: 375	@rsn8887 , thanks, it's works for me on classic workbench with the hd version and the speed is GOOD ! such lovely to see reshoot running on my Vita , yes it missing the bleu background but the fog effect is here, great ! beginning of the first level, problem without background Last edited by thairacerjp; 16 June 2019 at 12:57.

08 June 2019, 05:45	#65
rsn8887 Registered User Join Date: Oct 2006 Location: USA Posts: 1,058	Ah your trick is you use frameskip 1 and Cpu speed 7 MHz. Yes than it works well. Of course it won’t run as butter smooth as on original Amiga. Remember frameskip 1 reduces fps from 50 to 25. I always try to use frameskip 0 for all games, to make them as smooth as possible. But this game is very playable even with frameskip 1! Thanks for the post and screenshots to help me figure this out. You can safely increase sound rate to 48k to get better sound without any slowdown. 48k is the native Vita sound chip frequency and should give the best sound. Also you can push R+Start+left/right/up/down to increase screen view to show all of the game (including bottom blue score number), and center it vertically. Last edited by rsn8887; 08 June 2019 at 06:01.

21 November 2019, 14:33	#76
rsn8887 Registered User Join Date: Oct 2006 Location: USA Posts: 1,058	This project is not abandoned look at release history. I made a release just two months ago. It had all the features I wanted already a while ago. Native 50 Hz mode (without micro stutters) is not possible on Vita or Switch, hardware is limited to 60 Hz. Get a PC or Mister FPGA for that. I am not sure how optimized uae4arm is but I am pretty sure it uses more recent WinUAE code and not fame 68k optimized cpu. WinUAE code is also used in Retroarch PUAE on Switch, and causes slowdown in many games. All those games run full speed on UAE4ALL2 on Switch. Last edited by rsn8887; 21 November 2019 at 14:39.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Uae4All2-SDL Amiga Emulator for Android	lubomyr	support.OtherUAE	702	05 October 2022 23:26
Amiga emulator for PS Vita 3.60	twenty90seven	support.OtherUAE	30	17 March 2020 19:33
Need help with UAE4All2 development on Switch	rsn8887	support.OtherUAE	2	04 November 2018 23:53
FS: PS Vita.	Adrian Browne	MarketPlace	2	01 September 2015 00:37
PS VITA Amiga UAE	twenty90seven	support.OtherUAE	16	22 June 2013 15:44

07 June 2019, 17:42	#61
rsn8887 Registered User Join Date: Oct 2006 Location: USA Posts: 1,058	So it is ok to automatically disable CIA Overlay whenever AGA chipset is enabled? The only problem would be that A4000 would not be emulated perfectly then?

08 June 2019, 02:04	#63
rsn8887 Registered User Join Date: Oct 2006 Location: USA Posts: 1,058	How did you get such good speed and on my Vita it is sooo slow? I guess I have to play around with my config some more.

08 June 2019, 05:02	#64
thairacerjp Registered User Join Date: Aug 2016 Location: FRANCE Posts: 375	i've done nothing special ! , theses are my settings if can help sprite colision work faultless , you right, this game reming me project x and ps1 project X2 had some similitudes ! , this is a good shump cause you want to try again and again

08 June 2019, 21:46	#66
thairacerjp Registered User Join Date: Aug 2016 Location: FRANCE Posts: 375	thanks for the tips iwill try with yours precious advises, did the displayed lines can have effect on speed ?

31 July 2019, 00:34	#67
twenty90seven twenty90seven Join Date: Jun 2012 Location: Brisbane, Australia Posts: 196	Hey rsn887, is there a 'warp' button similar to winuae which you can use to fast forward through the game especially loading screens. I am aware of the 8x floppy speed option, but was wondering if there was a warp function where the fps is sped up to fast forward.

04 August 2019, 21:11	#68
rsn8887 Registered User Join Date: Oct 2006 Location: USA Posts: 1,058	No there’s no warp option at the moment. Good idea for a future version, thanks. But of course you can use WHDLoad and hdf files to load your games much faster and more reliably than 8x floppy speeds. I use WHDLoad for almost all my games, apart from a few that run too fast with WHDLoad or have other problems with it like RocknRoll.

06 August 2019, 04:49	#69
twenty90seven twenty90seven Join Date: Jun 2012 Location: Brisbane, Australia Posts: 196	Thanks RSN, Whdload and HDF files are good, but the issue with them is that save states don't always work with them. That's when I turn to floppies (for which save states work well), but the issue with floppies is the long loading times (which would make a warp function really good).

22 August 2019, 00:51	#70
rsn8887 Registered User Join Date: Oct 2006 Location: USA Posts: 1,058	Yes I agree. I just have to find out how to implement warp mode. Currently I have no clue.

14 October 2019, 13:45	#71
twenty90seven twenty90seven Join Date: Jun 2012 Location: Brisbane, Australia Posts: 196	On the PS Vita TV - is there an app to make it run at 50hz? Similar to the app on Android TV which allows 50 hz mode? That would be great for Amiga

20 November 2019, 22:30	#72
falken Amiga Lover Join Date: Feb 2018 Location: Spain Posts: 197	Is this project for Vita abandoned?

22 November 2019, 02:51	#77
lesta_smsc Registered User Join Date: Feb 2012 Location: United Kingdom Posts: 3,173	UAE4All2 definitely runs at an incredible speed. I don't even have to put on frame skip! Unfortunately, some games run a little too quickly. It would be great if there was a way to improve this... could you implement a CPU speed toggle (as there was in the VSH and some emulators) to enable slowing down the CPU in order to overcome this?

22 November 2019, 06:41	#78
rsn8887 Registered User Join Date: Oct 2006 Location: USA Posts: 1,058	Games only run too fast when you use whdload and A1200 config to run A500 games. Try to use A500 config and run the games from .adf floppy images instead. Alternatively, try setting cpu to 68000, it sometimes helps. For some games that run too fast even when using A500 config and .adf, try setting Blitter: Normal and reboot. Blitter: Normal can help if games run too fast, but the Blitter setting requires a reboot to take effect.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)