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Forum: Hardware mods Yesterday, 13:14
Replies: 62
Views: 3,838
Posted By roondar
Also curious: is there actually any accelerator...

Also curious: is there actually any accelerator (or even Amiga) that runs all the 68K software out there for the platform (doesn't matter if it's using Motorola 68K chips/FPGA's or...
Forum: project.Amiga Game Factory 12 May 2021, 17:10
Replies: 22
Views: 1,216
Posted By roondar
Looks very nice :)

Looks very nice :)
Forum: Amiga scene 12 May 2021, 15:30
Replies: 785
Views: 142,122
Posted By roondar
Cool :) Such a nice project, looking forward to...

Cool :)
Such a nice project, looking forward to the next video already :)
Forum: Hardware mods 12 May 2021, 15:29
Replies: 62
Views: 3,838
Posted By roondar
Well, to be fair I only really looked at the...

Well, to be fair I only really looked at the amount of bandwidth left in the theoretical sense. It obviously is not quite as simple as just 20% bandwidth left = 20% cycles left without any other...
Forum: Amiga scene 12 May 2021, 13:46
Replies: 785
Views: 142,122
Posted By roondar
Dread is looking to be amazing. Period. Consider...

Dread is looking to be amazing. Period. Consider the target hardware, check the results. No further research needed. If it plays anywhere near as good as it looks and sounds, this will be a very...
Forum: Hardware mods 12 May 2021, 13:40
Replies: 62
Views: 3,838
Posted By roondar
I'd say that the Chip RAM bus speed might be more...

I'd say that the Chip RAM bus speed might be more of an issue here than the CPU speed. The extremely fast 68030 will be waiting a lot of the time for getting a full frame out every frame. Assuming an...
Forum: Amiga scene 11 May 2021, 16:48
Replies: 148
Views: 11,000
Posted By roondar
In short: it runs at much higher resolution, has...

In short: it runs at much higher resolution, has much better music/sfx, plays & controls differently and is overall much closer to the arcade release.
Forum: Hardware mods 11 May 2021, 15:33
Replies: 62
Views: 3,838
Posted By roondar
Exactly, this is what I like about it as well :)

Exactly, this is what I like about it as well :)
Forum: Hardware mods 11 May 2021, 11:29
Replies: 62
Views: 3,838
Posted By roondar
This is a very cool project. Not only because it...

This is a very cool project. Not only because it allows for extremely high speeds (amazingly so it seems!), but because the base idea here should allow for some rather nifty tricks. For example, user...
Forum: Amiga scene 11 May 2021, 11:11
Replies: 785
Views: 142,122
Posted By roondar
This'll be my last off-topic post regarding this,...

This'll be my last off-topic post regarding this, I really do think it's an interesting discussion - but this thread is not the place for it.


Dread was a surprise and a very nice one. But Metro...
Forum: Amiga scene 11 May 2021, 09:43
Replies: 785
Views: 142,122
Posted By roondar
I nearly quit EAB several times for this very...

I nearly quit EAB several times for this very reason. Some of the threads/posts on here are extremely negative towards the Amiga itself or members of the board. Luckily, not all of it is bad ;)
...
Forum: News 10 May 2021, 15:19
Replies: 443
Views: 54,644
Posted By roondar
I always thought the modular animation was a...

I always thought the modular animation was a great idea, but seeing it in action like this makes it even cooler. Impressive stuff and awesome you manage to blit that many objects at once :)
Forum: Amiga scene 08 May 2021, 17:21
Replies: 148
Views: 11,000
Posted By roondar
I beta-tested only single player mode. Got way...

I beta-tested only single player mode. Got way more joysticks/controllers/etc than I have people around who want to play Amiga games :p
Forum: Amiga scene 07 May 2021, 09:30
Replies: 148
Views: 11,000
Posted By roondar
Yeah, I noticed that too. The game works really...

Yeah, I noticed that too. The game works really well with interlace on my CRT as well. You barely notice it :)
Forum: Amiga scene 06 May 2021, 22:50
Replies: 148
Views: 11,000
Posted By roondar
Perhaps you should make that a separate thread,...

Perhaps you should make that a separate thread, such good news deserves a bit of attention :)
Forum: Coders. General 06 May 2021, 09:54
Replies: 92
Views: 5,402
Posted By roondar
Indeed, it's of course always better to have a...

Indeed, it's of course always better to have a faster algorithm. But if you can't avoid it somehow, on the low end Amiga's you can still partially mitigate the cost by doing what I pointed out. That...
Forum: Coders. General 06 May 2021, 00:52
Replies: 92
Views: 5,402
Posted By roondar
On the Amiga, such expensive instructions can...

On the Amiga, such expensive instructions can still be useful if you're using the chipset as well and aren't running on a fast CPU with Fast RAM. A simple trick would be to run one or more (big)...
Forum: Amiga scene 06 May 2021, 00:10
Replies: 148
Views: 11,000
Posted By roondar
The screenshot doesn't work because the server...

The screenshot doesn't work because the server certificate is expired. So most browsers just won't load it. After I manually accepted the expired certificate, the image shows up just fine :great
...
Forum: Coders. Asm / Hardware 05 May 2021, 17:01
Replies: 14
Views: 532
Posted By roondar
For the 68000 I do know that it's indeed the same...

For the 68000 I do know that it's indeed the same speed for both move.w/add.w/lea.w/etc to an address register and move.l/add.l/lea.l/etc.

On the topic of LEA, while move.l #<label>,a0 and lea.l...
Forum: Coders. General 05 May 2021, 16:56
Replies: 92
Views: 5,402
Posted By roondar
It may be my 68020 is still a bit weak (I don't...

It may be my 68020 is still a bit weak (I don't know all the instructions by heart yet), but in my test I used the following two forms:

divu.l d0,d1
divul.l d0,d1:d2

And that...
Forum: Coders. Asm / Hardware 04 May 2021, 18:19
Replies: 92
Views: 3,203
Posted By roondar
I'd argue that most hobbies are not about sanity...

I'd argue that most hobbies are not about sanity :D
Anyway, what I meant was hopefully clear? By overstating that part of my reply, I was trying to point out that the reactions about this topic have...
Forum: Coders. Asm / Hardware 04 May 2021, 17:42
Replies: 92
Views: 3,203
Posted By roondar
You know he knows how to get alignment right...

You know he knows how to get alignment right because you know that AGA displays won't actually work if misaligned.
You're now claiming that you don't know how to set the alignment? You do realize...
Forum: Coders. Asm / Hardware 04 May 2021, 16:29
Replies: 92
Views: 3,203
Posted By roondar
That'd be the part where you knowingly told a...

That'd be the part where you knowingly told a falsehood. I pointed out which part was false and how I know you actually are aware it's false twice now. So, for the last time: you claimed "chances are...
Forum: Coders. Asm / Hardware 04 May 2021, 14:31
Replies: 92
Views: 3,203
Posted By roondar
It's a false statement, because McGeezer already...

It's a false statement, because McGeezer already knows how to align bitmaps and you do know this given he's released AGA software before. Worse, it rather arrogantly assumes "chances are" he'll have...
Forum: Coders. General 04 May 2021, 13:37
Replies: 92
Views: 5,402
Posted By roondar
It's not really poor code that's the problem....

It's not really poor code that's the problem. Processors beyond the 68000/68010/80386 are hard to emulate because they have cache memory and instruction speed that varies depending on the instruction...
Forum: Coders. Asm / Hardware 04 May 2021, 13:29
Replies: 92
Views: 3,203
Posted By roondar
I already did. "Then chances are that the...

I already did.

"Then chances are that the alignment isn't right." is false. And as an OS coder, you know it is false because he can't display working screens at all if the alignment it wrong (and...
Forum: Coders. Asm / Hardware 04 May 2021, 12:56
Replies: 92
Views: 3,203
Posted By roondar
I didn't ask a question about using the OS, I...

I didn't ask a question about using the OS, I observed you routinely tell people falsehoods about accessing the hardware directly and wondered aloud why you keep doing that.
Which is fair enough,...
Forum: Coders. Asm / Hardware 04 May 2021, 12:34
Replies: 92
Views: 3,203
Posted By roondar
Let's see... One is a programming style that you...

Let's see... One is a programming style that you can disagree with, but that is actually quite defensible in the current context (which you didn't even attempt to understand).

The other is a...
Forum: Coders. Asm / Hardware 04 May 2021, 11:59
Replies: 92
Views: 3,203
Posted By roondar
Alignment requirements are hardly rocket science....

Alignment requirements are hardly rocket science. They're also well documented. And getting them wrong instantly results in a corrupted screen.

You do this a lot with regards to OCS/ECS/AGA...
Forum: Coders. General 04 May 2021, 10:02
Replies: 92
Views: 5,402
Posted By roondar
Ah, perhaps I should've specified this. But my...

Ah, perhaps I should've specified this. But my test results were specifically for the 68020 only, as that is what litwr was talking about.
So for the record: my test was done on a stock Amiga 1200,...
Forum: Coders. General 03 May 2021, 20:47
Replies: 92
Views: 5,402
Posted By roondar
Right, just because I'm really rather interested...

Right, just because I'm really rather interested in the Motorola 68K architecture, I did a few minor tests using extremely simple code I executed while all interrupts and the screen were disabled. I...
Forum: Coders. General 03 May 2021, 16:42
Replies: 92
Views: 5,402
Posted By roondar
Best case through worst case in those diagrams...

Best case through worst case in those diagrams only refer to time with instruction overlap/no overlap but in cache/no overlap not in cache*. They do not refer to the differences in timing for DIV/MUL...
Forum: Coders. General 03 May 2021, 15:53
Replies: 92
Views: 5,402
Posted By roondar
Regarding the timings of instructions, It should...

Regarding the timings of instructions, It should be pointed out that the timings in the Motorola manuals for the DIV and MUL instructions represent the maximum number of cycles they can take*, not...
Forum: Amiga scene 02 May 2021, 21:19
Replies: 785
Views: 142,122
Posted By roondar
Those textures look extremely good, can't wait...

Those textures look extremely good, can't wait for more updates :)
Forum: Coders. Asm / Hardware 30 April 2021, 16:36
Replies: 10
Views: 895
Posted By roondar
You can update the Copperlist whenever you...

You can update the Copperlist whenever you desire, there is no lockout (though if you update the Copper at the wrong time, you may see some display glitches). It should definitely not crash the...
Forum: Amiga scene 29 April 2021, 17:35
Replies: 785
Views: 142,122
Posted By roondar
Finally watched the video. Nice work with the...

Finally watched the video. Nice work with the positional audio. That's quite cool and it works really well as you show. Also love all the sound options you're adding to the menu :D

---

I feel...
Forum: support.WinUAE 29 April 2021, 14:54
Replies: 15
Views: 730
Posted By roondar
Yes, it's true that some software doesn't like an...

Yes, it's true that some software doesn't like an extremely fast CPU. Luckily, you can always create a secondary (or third, etc) WinUAE config that is the same but with a slower CPU setting :)
Forum: support.WinUAE 29 April 2021, 13:20
Replies: 15
Views: 730
Posted By roondar
As far as I know, the only thing needed to keep...

As far as I know, the only thing needed to keep the chipset (i.e. OCS/ECS/AGA) cycle accurate is enabling cycle accurate for the chipset itself.

The processor speed, however, is not going to be...
Forum: support.WinUAE 29 April 2021, 12:13
Replies: 15
Views: 730
Posted By roondar
The thing is that cycle exact only really applies...

The thing is that cycle exact only really applies to the AGA chipset for AGA machines, the 68020 (and 030/040/060) CPU speed isn't emulated completely accurately because of difficulties in figuring...
Forum: Amiga scene 29 April 2021, 10:39
Replies: 148
Views: 11,000
Posted By roondar
I've seen various posts about the interlace mode...

I've seen various posts about the interlace mode used. Now, I've actually ran TS beta/demo on my real A1200 and WinUAE, so I may be able to clear some small things up.

On my Philips CM8833 CRT,...
Showing results 1 to 40 of 2804

 
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