Problematic Demos. - Page 27

amilo3438 · 27 December 2013, 20:35

Quote:

Originally Posted by Toni Wilen

I think I can finally say that chipset and 68000 CPU is now practically 100% (minus stupid bugs) cycle-exact and biggest remaining problems are: blitter register modifications while active and reading write-only registers that isn't correctly emulated yet.

Yeah, thats great, it is now very very near but still not exactly 100%.

Well, in my opinion, when below 2 demos found in "strange issues" will work same as on a real Amiga then that will be 100%.

Meeting Intro (Intro) by Disknet -> http://eab.abime.net/showpost.php?p=...&postcount=358
Liquid-Glenz (Demo) by Maniacs -> http://eab.abime.net/showpost.php?p=...&postcount=369

Quote:

Originally Posted by Toni Wilen

Thanks for finding HUGE amounts of test cases (the more there is similar test cases, the easier it is to solve).

(Of course next problem you find is something unexpected..)

Thanks also for fixing HUGE amount of problematic demos (hope will also manage to solve/fix some of those still not fixed).

Now, there is only letter "Z" left to finish ... so will see if there is something unexpected waiting to be discovered.

amilo3438 · 27 December 2013, 21:33

Demo 2 (Demo) by Zark

A500 OCS KS1.2/1.3 512 chip ... some strange flickering !!!

Toni Wilen · 27 December 2013, 21:59

Quote:

Originally Posted by amilo3438

Demo 2 (Demo) by Zark

A500 OCS KS1.2/1.3 512 chip ... some strange flickering !!!

100% A500 confirmed. (Makes no sense but flickering glitch is 100% exact same..)

Toni Wilen · 27 December 2013, 22:06

Quote:

Originally Posted by amilo3438

Meeting Intro (Intro) by Disknet -> http://eab.abime.net/showpost.php?p=...&postcount=358

I rechecked and it does have glitches on real A500 (Maybe I didn't wait long enough). It happens much less than on emulation but every 5-10 seconds similar single frame vector fill leak happens. (Or perhaps I had different config, don't remember..)

EDIT: it flickers if 0.5+0.5, it does not if 1M chip. "Slow" ram has exact same speed as chip ram so perhaps demo has some weird bug or something.

amilo3438 · 28 December 2013, 12:18

I have just finished with verifying A500 OCS/ECS demos/intros (mostly), so its time for small summary:

In last >15 weeks has been tested >10.200 A500 OCS/ECS demos/intros ... what would mean cca 100 demos/intros per day.

Yeah, it sounds now too much crazy and masochistic, but at beginning I planned to test only a small number of demos - even not more than a few hundreds, but this happened, so from now all could enjoy an improved WinUAE A500 CE emulation ... and also all this thanks to Toni who has managed to solve/fix the most of problems found in emulation. Thanks again Toni.

With this ends the period of intensive testing demo/intros ... and what still has not been tested in this round, are all other categories like crack intros, music demos, packdisks, slideshows, diskmagazines and etc., even some of has already been tested but in a negligible number.

Happy New Year to everyone !!!

Toni Wilen · 28 December 2013, 19:40

Quote:

Originally Posted by amilo3438

Liquid-Glenz (Demo) by Maniacs -> http://eab.abime.net/showpost.php?p=...&postcount=369

This is now confirmed working 100% correctly! I did more A500 tests, booted it 5 times, 3 times it worked without glitches, 2 times it had identical glitches! Must be a buggy demo. (I only tested it once last time..)

Same in emulation, sometimes it works, sometimes it has glitches.

amilo3438 · 28 December 2013, 20:22

Wow, thats really great ... so both is now confirmed to working/behaving same on a real Amiga, except for Meeting Intro when it running on a real Amiga with 1mb chip seems to not glitches, but on emulation QS A500 ECS 1mb it still glitches.

Anyway, all in all, still very impressive achievement regarding accuracy in Amiga 500 emulation.

It seems I forgot to mention yesterday the last demo left in "most likely CPU emulator timing" issues:

Demo by Dope -> http://eab.abime.net/showpost.php?p=...&postcount=423

I have tested it little more today:
after it starts on screen and from some 18 seconds the logo glitches very quickly ...
I have also counted when this glitches happens in seconds: 18, 23 ... 40, 45 ... 67 ... 81 ... 98 ... 113 ...149 ... 157 ... etc.

Now wondering does it behaves same on a real Amiga ?!

amilo3438 · 28 December 2013, 21:40

Quote:

Originally Posted by Toni Wilen

This is now confirmed working 100% correctly! I did more A500 tests, booted it 5 times, 3 times it worked without glitches, 2 times it had identical glitches! Must be a buggy demo. (I only tested it once last time..)

Same in emulation, sometimes it works, sometimes it has glitches.

Well, regarding Liquid-Glenz (Demo), when it glitches in emulation and after a some little longer time it write screen with something and also stops to work ... does it really happens same on a real A500 ECS 1mb ?!

EDIT: Also the demo is from mid. 1994 -> http://janeway.exotica.org.uk/release.php?id=10031 ... and also works fine in emu on A500+ (ECS Full) ...
It could be that its not made for A500 at all ?!

Toni Wilen · 28 December 2013, 21:43

Quote:

Originally Posted by amilo3438

Well, regarding Liquid-Glenz (Demo), when it glitches in emulation and after a some little longer time it write screen with something and also stops to work ... does it really happens same on a real A500 ECS 1mb ?!

Yes, it will slowly self-destruct.

Toni Wilen · 29 December 2013, 10:22

Quote:

Originally Posted by amilo3438

EDIT: Also the demo is from mid. 1994 -> http://janeway.exotica.org.uk/release.php?id=10031 ... and also works fine in emu on A500+ (ECS Full) ...
It could be that its not made for A500 at all ?!

Yeah, possibly it accidentally uses upper 1M of chip and gets random data (which is mirror of low 1M chip, some kind of random data makes it work, some causes glitches) if less than 2M chip ram.

Quote:

Demo by Dope -> http://eab.abime.net/showpost.php?p=...&postcount=423

Should be fixed now. It CPU writes to BPLCON0 (copper is used for color changes only) and in some rare situations when CPU didn't have as many free bus cycles, write was done one color clock cycle too late..

amilo3438 · 29 December 2013, 12:18

Quote:

Originally Posted by Toni Wilen

Should be fixed now. It CPU writes to BPLCON0 (copper is used for color changes only) and in some rare situations when CPU didn't have as many free bus cycles, write was done one color clock cycle too late..

Thats really really great, so you managed to solve the all problematic demos from "most likely CPU emulator timing" issues ... Well done!

JFI ... I was yesterday testing some demos from "blitter active" issues and notice following changes in behaving:
Pax Americana by Complex -> garbage looks now different than before !
Expiration (Demo) by Mayhem -> glitches also looks different now than before !
Vector Bobs (Demo) by It -> no more garbage in scrolltext now !

p.s.
Regarding demo Meeting Intro (Intro) by Disknet, we mostly focused on glitches from rotating cube ... but there is also happens some garbage in scrolling text below it, and it sometimes return again to normal ... does the same garbage on scrolling text happens on a real Amiga ?!

Toni Wilen · 29 December 2013, 15:25

Quote:

Originally Posted by amilo3438

Regarding demo Meeting Intro (Intro) by Disknet, we mostly focused on glitches from rotating cube ... but there is also happens some garbage in scrolling text below it, and it sometimes return again to normal ... does the same garbage on scrolling text happens on a real Amiga ?!

I decided to ignore this demo for now. It is too unreliable test case because it also glitches on real hardware, which makes it impossible to debug without wasting lots of time. ("Was this glitch 'correct' glitch or not?")

amilo3438 · 29 December 2013, 16:42

Yeah, probably those glitches are not worth the effort. Good decision.

amilo3438 · 30 December 2013, 12:07

F-19 Stealth Fighter (Crack Intro) by Skid Row & Valhalla -> http://janeway.exotica.org.uk/release.php?id=16236

A500 most common ... it doesnt work ! (hope its not some library missing issue)

EDIT: False alarm !!! ... Found the reason ... it needs 1mb chip ram!

Toni Wilen · 30 December 2013, 12:19

Quote:

Originally Posted by amilo3438

F-19 Stealth Fighter (Crack Intro) by Skid Row & Valhalla -> http://janeway.exotica.org.uk/release.php?id=16236

A500 most common ... it doesnt work ! (hope its not some library missing issue)

Quote:

it needs 1mb chip ram!

"Original" ("F-19 Stealth Fighter v1.00 (1990)(MicroProse)[cr SR - Valhalla]") does not need, it loads from bootblock, no CLI screen open, no corruption.

amilo3438 · 30 December 2013, 20:39

Legalize It 2 (Musicdisk) by Anarchy -> http://janeway.exotica.org.uk/release.php?id=9007

A500 most common ... pic.1 !!!

EDIT: Yes, it seems to happens random ... but couldnt duplicate it on f.e. an older WinUAE 2.0.1 version !!!

EDIT2: It starts to happen on winuae.zip test version from 2013-12-15 9:47 ... in previous test version 2013-12-11 19:58 and also official 2.7.0 it works fine.
(p.s. How to duplicate: press Ctrl+Amiga+Amiga ... at least after 3rd reset time it should happen.)

Toni Wilen · 31 December 2013, 11:52

Fixed but I am still not 100% sure what parts of sprite state gets reset on vblank.

amilo3438 · 31 December 2013, 15:48

JFI ... it is for AGA but seems it doesnt recognize AGA chipset ... pic.1 !!!

Gyrate (Demo) by Wrath Designs -> http://janeway.exotica.org.uk/release.php?id=11080

Toni Wilen · 31 December 2013, 15:48

Quote:

Originally Posted by amilo3438

JFI ... it is for AGA but seems it doesnt recognize AGA chipset ... pic.1 !!!

Gyrate (Demo) by Wrath Designs -> http://janeway.exotica.org.uk/release.php?id=11080

99% surely it needs setpatch to be run first.

amilo3438 · 31 December 2013, 15:57

Quote:

Originally Posted by Toni Wilen

99% surely it needs setpatch to be run first.

Yeah, AGA 2mb chip + 8mb fast + WB = works fine!

30 December 2013, 12:07	#534
amilo3438 Amiga 500 User Join Date: Jun 2013 Location: EU Posts: 1,502	F-19 Stealth Fighter (Crack Intro) by Skid Row & Valhalla -> http://janeway.exotica.org.uk/release.php?id=16236 A500 most common ... it doesnt work ! (hope its not some library missing issue) EDIT: False alarm !!! ... Found the reason ... it needs 1mb chip ram! Last edited by amilo3438; 30 December 2013 at 12:15.

30 December 2013, 20:39	#536
amilo3438 Amiga 500 User Join Date: Jun 2013 Location: EU Posts: 1,502	Legalize It 2 (Musicdisk) by Anarchy -> http://janeway.exotica.org.uk/release.php?id=9007 A500 most common ... pic.1 !!! EDIT: Yes, it seems to happens random ... but couldnt duplicate it on f.e. an older WinUAE 2.0.1 version !!! EDIT2: It starts to happen on winuae.zip test version from 2013-12-15 9:47 ... in previous test version 2013-12-11 19:58 and also official 2.7.0 it works fine. (p.s. How to duplicate: press Ctrl+Amiga+Amiga ... at least after 3rd reset time it should happen.) Attached Thumbnails Last edited by amilo3438; 30 December 2013 at 22:29.

31 December 2013, 15:48	#538
amilo3438 Amiga 500 User Join Date: Jun 2013 Location: EU Posts: 1,502	JFI ... it is for AGA but seems it doesnt recognize AGA chipset ... pic.1 !!! Gyrate (Demo) by Wrath Designs -> http://janeway.exotica.org.uk/release.php?id=11080 Attached Thumbnails

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Problematic GVP A530 Turbo	Mogsy	support.Hardware	22	13 November 2012 19:12
Problematic thread?	prowler	project.EAB	5	28 October 2011 00:06
Problematic Holiday Lemmings 94 demo disk	MethodGit	support.Games	19	08 November 2010 03:56
Problematic slaves list	keropi	project.Killergorilla's WHD packs	44	28 November 2008 12:46
Looking for two demos...	eternalcrusader	request.Demos	3	01 August 2006 08:57

27 December 2013, 21:33	#522
amilo3438 Amiga 500 User Join Date: Jun 2013 Location: EU Posts: 1,502	Demo 2 (Demo) by Zark A500 OCS KS1.2/1.3 512 chip ... some strange flickering !!!

28 December 2013, 12:18	#525
amilo3438 Amiga 500 User Join Date: Jun 2013 Location: EU Posts: 1,502	I have just finished with verifying A500 OCS/ECS demos/intros (mostly), so its time for small summary: In last >15 weeks has been tested >10.200 A500 OCS/ECS demos/intros ... what would mean cca 100 demos/intros per day. Yeah, it sounds now too much crazy and masochistic, but at beginning I planned to test only a small number of demos - even not more than a few hundreds, but this happened, so from now all could enjoy an improved WinUAE A500 CE emulation ... and also all this thanks to Toni who has managed to solve/fix the most of problems found in emulation. Thanks again Toni. With this ends the period of intensive testing demo/intros ... and what still has not been tested in this round, are all other categories like crack intros, music demos, packdisks, slideshows, diskmagazines and etc., even some of has already been tested but in a negligible number. Happy New Year to everyone !!!

28 December 2013, 20:22	#527
amilo3438 Amiga 500 User Join Date: Jun 2013 Location: EU Posts: 1,502	Wow, thats really great ... so both is now confirmed to working/behaving same on a real Amiga, except for Meeting Intro when it running on a real Amiga with 1mb chip seems to not glitches, but on emulation QS A500 ECS 1mb it still glitches. Anyway, all in all, still very impressive achievement regarding accuracy in Amiga 500 emulation. It seems I forgot to mention yesterday the last demo left in "most likely CPU emulator timing" issues: Demo by Dope -> http://eab.abime.net/showpost.php?p=...&postcount=423 I have tested it little more today: after it starts on screen and from some 18 seconds the logo glitches very quickly ... I have also counted when this glitches happens in seconds: 18, 23 ... 40, 45 ... 67 ... 81 ... 98 ... 113 ...149 ... 157 ... etc. Now wondering does it behaves same on a real Amiga ?!

29 December 2013, 16:42	#533
amilo3438 Amiga 500 User Join Date: Jun 2013 Location: EU Posts: 1,502	Yeah, probably those glitches are not worth the effort. Good decision.

31 December 2013, 11:52	#537
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	Fixed but I am still not 100% sure what parts of sprite state gets reset on vblank.

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