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Forum: Amiga scene 28 November 2021, 20:56
Replies: 57
Views: 3,301
Posted By saimo
@Neil79 1. I noticed my games were...

@Neil79


1. I noticed my games were missing.
2. I checked if other games were missing.
3. I found out other games were missing.
4. In everybody's interest, I (nicely and impersonally) asked...
Forum: Amiga scene 28 November 2021, 17:13
Replies: 57
Views: 3,301
Posted By saimo
I can't afford to check all the games, so I'll...

I can't afford to check all the games, so I'll just talk about mine (which is why I noticed that some games were missing in first place): why are not ArtPazz (https://retream.itch.io/artpazz) and...
Forum: Amiga scene 27 November 2021, 13:19
Replies: 57
Views: 3,301
Posted By saimo
The list of games in the poll is shorter than...

The list of games in the poll is shorter than this list (https://www.lemonamiga.com/forum/viewtopic.php?f=2&t=17423) (22 games instead of 35): didn't the missing games qualify or were they simply...
Forum: Coders. Asm / Hardware 07 November 2021, 18:40
Replies: 5
Views: 594
Posted By saimo
The devices that generate interrupt requests keep...

The devices that generate interrupt requests keep on generating them (thus causing the INTREQ(R) bits go become 1) regardless of INTENA. INTENA dictates which of the INTREQ bits actually trigger CPU...
Forum: Amiga scene 13 October 2021, 16:41
Replies: 19
Views: 3,378
Posted By saimo
Glad to hear that, thanks!

Glad to hear that, thanks!
Forum: Retrogaming General Discussion 13 October 2021, 14:10
Replies: 15
Views: 958
Posted By saimo
I voted yes, but the joysticks in the picture...

I voted yes, but the joysticks in the picture would be no good to me: the buttons should all be on the base (and be more accessible than the one shown) or, at most, only one should be on the shaft.
Forum: support.WinUAE 03 October 2021, 22:49
Replies: 1,068
Views: 312,568
Posted By saimo
Confirmed to work fine now. Thanks for the quick...

Confirmed to work fine now. Thanks for the quick fix!
Forum: support.WinUAE 03 October 2021, 14:24
Replies: 1,068
Views: 312,568
Posted By saimo
I did more tests and found something interesting....

I did more tests and found something interesting.

First off, something I forgot to mention:
* FFS;
* ROMs: 3.1
* OS: 3.9

The problem happens with files of at least 17170 bytes (yes, such...
Forum: support.WinUAE 03 October 2021, 00:49
Replies: 1,068
Views: 312,568
Posted By saimo
@Toni Starting from b33, floppy drive...

@Toni

Starting from b33, floppy drive emulation is broken: if cycle-exact emulation is not selected, writing to floppy images either lasts forever or even causes the system to freeze (but WinUAE...
Forum: Amiga scene 27 September 2021, 22:49
Replies: 220
Views: 35,030
Posted By saimo
Want to have a look at SkillGrid v1.1? Here's a...

Want to have a look at SkillGrid v1.1? Here's a huge rollercoaster longplay for you to enjoy!

https://www.youtube.com/watch?v=Ugx0uhPYzdk

The video is quite long, but if, you go through it all,...
Forum: Coders. Asm / Hardware 23 September 2021, 18:28
Replies: 44
Views: 8,525
Posted By saimo
I have updated the test archive...

I have updated the test archive (https://www.retream.com/_temporary/NVRAMRTS.lha): the executable in this one executes the routines in level 7 interrupt mode, so that nothing could ever interfere -...
Forum: Coders. Asm / Hardware 20 September 2021, 19:54
Replies: 44
Views: 8,525
Posted By saimo
No problem!

No problem!
Forum: Coders. Asm / Hardware 20 September 2021, 14:21
Replies: 44
Views: 8,525
Posted By saimo
That's a great help. This is the first time for...

That's a great help. This is the first time for me, instead.

The first thing that comes to mind is ensuring that timings don't get disrupted, but in the datasheet there's nothing that suggests...
Forum: Coders. Asm / Hardware 19 September 2021, 21:26
Replies: 44
Views: 8,525
Posted By saimo
@modrobert Thanks for the time and the...

@modrobert

Thanks for the time and the effort!


The code simply does tst.b (a4) (where a4 = $bfe001) to delay execution by at least 1 E clock cycle (lately I made extensive tests on a variety...
Forum: Coders. Asm / Hardware 12 September 2021, 17:47
Replies: 44
Views: 8,525
Posted By saimo
Well, at least you have a machine where the...

Well, at least you have a machine where the problem can be reproduced: that's a very good thing. The fact that such machine is in experts hands is even better ;)



No hurry, whenever you do it,...
Forum: Coders. Asm / Hardware 10 September 2021, 22:02
Replies: 44
Views: 8,525
Posted By saimo
The friend who has the machine where my routines...

The friend who has the machine where my routines never worked managed to give the suite a spin. And the (unsurprising result) was that the very first test hangs right at the beginning (black screen...
Forum: Coders. Asm / Hardware 08 September 2021, 23:48
Replies: 44
Views: 8,525
Posted By saimo
That would be utterly cool! One thing I did...

That would be utterly cool!

One thing I did with this last rewrite was eliminating the longword accesses to $b80030 in order to read/write also $b80032 at the same time. The first versions (which...
Forum: Amiga scene 08 September 2021, 18:31
Replies: 220
Views: 35,030
Posted By saimo
Apart from the new package artwork (which is...

Apart from the new package artwork (which is being worked on), the only thing that is holding up the release of SkillGrid v1.1...
Forum: support.WinUAE 08 September 2021, 00:35
Replies: 5
Views: 736
Posted By saimo
I've tested beta32 now and I can confirm that the...

I've tested beta32 now and I can confirm that the bug is gone :)
Thanks once again for the immediate fix!
Forum: Coders. Asm / Hardware 08 September 2021, 00:07
Replies: 44
Views: 8,525
Posted By saimo
I finally returned to this. I have rewritten...

I finally returned to this.
I have rewritten the routines once again, and I have no idea of what happens on real machines. Therefore, I have prepared a proper test suite to have the routines...
Forum: support.AmigaOS 05 September 2021, 22:21
Replies: 9
Views: 1,615
Posted By saimo
Opposite experience here: on my A1200 + Blizzard...

Opposite experience here: on my A1200 + Blizzard 1230IV, after removing MuMove4K and MuFastZero, the transfer speed of the CF connected to the internal IDE increased by about 141 kB/s.
Forum: support.WinUAE 05 September 2021, 20:08
Replies: 5
Views: 736
Posted By saimo
Cool, thanks!

Cool, thanks!
Forum: support.WinUAE 05 September 2021, 14:27
Replies: 5
Views: 736
Posted By saimo
Sorry for posting it in the wrong place, then! ...

Sorry for posting it in the wrong place, then!

By the way, one thing I didn't mention (but you might have noticed it already): the problem is visible only when writing to the last 16-byte page. It...
Forum: support.WinUAE 04 September 2021, 19:54
Replies: 5
Views: 736
Posted By saimo
CD32 NVRAM bug

While testing my (rewritten) NVRAM routines, I noticed an odd issue: if the NVRAM is written to starting from a certain address, the WinUAE NVRAM file grows beyond 1024 bytes. More precisely:
1. my...
Forum: Coders. Asm / Hardware 04 September 2021, 19:07
Replies: 48
Views: 4,749
Posted By saimo
It sounds like I had made the same or a similar...

It sounds like I had made the same or a similar assumption: I thought that the access speed was 1 CIA cycle and that, however, the CPU might lose some CPU cycles due to clocks not perfectly...
Forum: Coders. Asm / Hardware 04 September 2021, 00:23
Replies: 48
Views: 4,749
Posted By saimo
Hmmm... given what he says in post 17...

Hmmm... given what he says in post 17 (http://eab.abime.net/showpost.php?p=1501068&postcount=17), it sounds that all of this was nothing new to Toni Wilen - maybe it was common knowledge already?

...
Forum: support.AmigaOS 03 September 2021, 15:07
Replies: 9
Views: 1,615
Posted By saimo
Just a general note: the MMU slows down memory...

Just a general note: the MMU slows down memory accesses a bit (depending on the MMU type, on how it's programmed and what it is asked to do); therefore, if not needed to get the hardware to work...
Forum: Coders. Asm / Hardware 01 September 2021, 09:53
Replies: 48
Views: 4,749
Posted By saimo
I finally received the log from another test,...

I finally received the log from another test, performed on yet another Amiga CD32 equipped with a TF328. Surprise: the results are different from the previous ones (see post 42...
Forum: Coders. Asm / Hardware 28 August 2021, 18:10
Replies: 7
Views: 1,103
Posted By saimo
@Photon If you don't have control words and...

@Photon

If you don't have control words and graphics data decoupling covered, this picture shows it in action (there's also a video, but it's long):
...
Forum: Amiga scene 26 August 2021, 16:31
Replies: 186
Views: 32,142
Posted By saimo
Congratulations, the end result looks really good...

Congratulations, the end result looks really good and, with its painted style and properly-balanced colors, makes for a very effective background :great
Forum: Amiga scene 19 August 2021, 16:07
Replies: 56
Views: 8,682
Posted By saimo
While working on the SkillGrid update,...

While working on the SkillGrid update, backporting to it all the improvements I recently made to my other projects, I realized that those improvements came with a couple of new bugs. THE CURE was...
Forum: Amiga scene 19 August 2021, 15:45
Replies: 19
Views: 3,378
Posted By saimo
While working on the SkillGrid update,...

While working on the SkillGrid update, backporting to it all the improvements I recently made to my other projects, I realized that those improvements came with a couple of new bugs. MeMO was...
Forum: request.Apps 17 August 2021, 23:42
Replies: 3
Views: 1,038
Posted By saimo
Try also Amiga + 1/2/3/4/5+/- (or the...

Try also Amiga + 1/2/3/4/5+/- (or the corresponding menu entries) ;)
Forum: Coders. Asm / Hardware 17 August 2021, 15:28
Replies: 48
Views: 4,749
Posted By saimo
Yep, and we're back to my very first post here...

Yep, and we're back to my very first post here (http://eab.abime.net/showpost.php?p=1500971&postcount=8) :D I had always assumed that it was like that, until recently my A1200 pointed out I was...
Forum: Coders. Asm / Hardware 17 August 2021, 14:24
Replies: 48
Views: 4,749
Posted By saimo
I had the CIA tests run on a friend's Amiga CD32...

I had the CIA tests run on a friend's Amiga CD32 equipped with a TF328. The results (attached) are: all the instructions (clr, move, st, tst) execute in 1 E clock cycle, no matter the combination. I...
Forum: Coders. Asm / Hardware 15 August 2021, 16:11
Replies: 48
Views: 4,749
Posted By saimo
It must be a language thing. So, you mean:...

It must be a language thing. So, you mean: "minimum" = "at least". I had interpreted that as "as small as".
Forum: Coders. Asm / Hardware 15 August 2021, 14:43
Replies: 48
Views: 4,749
Posted By saimo
Unfortunately no, because the delay is 1 clock...

Unfortunately no, because the delay is 1 clock only on the unexpanded A1200. The only generally valid conclusion revealed by the tests done so far is that reading takes always 2 cycles (probably...
Forum: Coders. Asm / Hardware 15 August 2021, 11:33
Replies: 48
Views: 4,749
Posted By saimo
Same result. Then, I changed $bfeb01 to $bfe201,...

Same result. Then, I changed $bfeb01 to $bfe201, just to verify whether the unused register has some weird side effect, but the result was still the same.
Then, it dawned on me: your program reports...
Forum: Coders. Asm / Hardware 15 August 2021, 01:06
Replies: 48
Views: 4,749
Posted By saimo
I decided to make a test based on this, knowing...

I decided to make a test based on this, knowing already that, after a write to CHIP RAM, the 68030 on the Blizzard enjoys something between 26 and 27 free CPU cycles for cached, non-memory...
Forum: Coders. Asm / Hardware 15 August 2021, 00:06
Replies: 48
Views: 4,749
Posted By saimo
Nope, it returns 2 cycles on 68030 and 4 cycles...

Nope, it returns 2 cycles on 68030 and 4 cycles on 68020 (http://eab.abime.net/showpost.php?p=1501062&postcount=15).
EDIT: sorry, I hadn't noticed the second test program! I'll try it now and report...
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