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Search took 0.27 seconds. Search: Posts Made By: roondar
Forum: Coders. Asm / Hardware 04 March 2021, 13:02
Replies: 3
Views: 244
Posted By roondar
I'd say the problem has to do with the fact that...

I'd say the problem has to do with the fact that the Amiga doesn't really do fixed addresses.

Presuming you link to the standard Amiga Hunk format, you have no guarantees where the OS will load...
Forum: Coders. General 04 March 2021, 10:31
Replies: 101
Views: 2,121
Posted By roondar
Well, I didn't mean to say it was supported by...

Well, I didn't mean to say it was supported by the OS because that is clearly not true. I meant to say that it's possible to do it regardless (especially if you don't desire to return to the OS...
Forum: Coders. General 03 March 2021, 22:00
Replies: 101
Views: 2,121
Posted By roondar
This is a matter of definition. What I meant is...

This is a matter of definition. What I meant is that you don't need nearly all libraries and/or devices in memory to use the trackdisk.device. Obviously, you will need to actually be running the OS....
Forum: Coders. General 03 March 2021, 17:56
Replies: 101
Views: 2,121
Posted By roondar
As I understand it, the current OS 4.0 solution...

As I understand it, the current OS 4.0 solution to this problem is to call an emulator to run the 68K application. I have no idea what happens if you want to run another OS this way.
Right, I see...
Forum: Nostalgia & memories 03 March 2021, 15:18
Replies: 54
Views: 9,371
Posted By roondar
I do seem to recall reading adverts for PC's that...

I do seem to recall reading adverts for PC's that came with a 16 colour VGA card, but it's been over 25 years so I'll admit I could simply be misremembering here.
Forum: Coders. General 03 March 2021, 11:51
Replies: 101
Views: 2,121
Posted By roondar
It depends on your target. If you want to...

It depends on your target. If you want to predominantly target Motorola 68K based systems, then Amiga OS Classic (incl. 3.1.4) are the correct choice. If you want to predominantly target PPC based...
Forum: Coders. General 02 March 2021, 15:24
Replies: 101
Views: 2,121
Posted By roondar
Sounds like a nice project! I'm not an OS coder...

Sounds like a nice project!
I'm not an OS coder so can't help you there much, but I do know a few things about the Amiga Hardware.

And sadly, one thing you will not be able to do is create a text...
Forum: Retrogaming General Discussion 01 March 2021, 16:59
Replies: 260
Views: 18,708
Posted By roondar
Ok, here's the short form of what's going on: ...

Ok, here's the short form of what's going on:

All Amiga's (from A1000 to A4000) have essentially the same Blitter
The Blitter has the same speed on all Amiga's.
What changes between...
Forum: Amiga scene 01 March 2021, 16:14
Replies: 191
Views: 5,657
Posted By roondar
I'm hopeful we'll be able to create some sort of...

I'm hopeful we'll be able to create some sort of basic framework that does the important things and refer people to that as needed. Many of the things that need to be done are not that complicated...
Forum: Retrogaming General Discussion 01 March 2021, 16:10
Replies: 260
Views: 18,708
Posted By roondar
It's a bit confusing perhaps, but they're talking...

It's a bit confusing perhaps, but they're talking about display fetch modes, not a burst mode for the Blitter. AGA does have a display fetch 'burst mode', but like said it doesn't have one for the...
Forum: Retrogaming General Discussion 01 March 2021, 14:35
Replies: 260
Views: 18,708
Posted By roondar
Ahh, would've been nice though - undocumented 4x...

Ahh, would've been nice though - undocumented 4x Blitter speed would be the scoop of the century :P


The write the word BULLSHIT into the non-existent register. So err, nothing :p
Forum: Amiga scene 01 March 2021, 14:29
Replies: 191
Views: 5,657
Posted By roondar
I could really do with a proper how-to on OS...

I could really do with a proper how-to on OS friendly interrupts, I've read the RKM manual but somehow found it rather vague on how to actually do this properly. Would you happen to know of a full,...
Forum: Amiga scene 01 March 2021, 12:57
Replies: 191
Views: 5,657
Posted By roondar
The way I read this thread it seems to me to...

The way I read this thread it seems to me to mostly be about new programs made by today's 'bedroom coders' in the Amiga scene. But actually, I do agree - old games/demos on pretty much all platforms...
Forum: Amiga scene 01 March 2021, 12:04
Replies: 191
Views: 5,657
Posted By roondar
OS overhead on low end models (i.e. A500) is...

OS overhead on low end models (i.e. A500) is around 20-30% CPU and around 100-150KB RAM (much more if you have a HDD or more floppy drives). I measured this several times. It fluctuates and you do...
Forum: Amiga scene 01 March 2021, 11:55
Replies: 792
Views: 93,944
Posted By roondar
Did I miss a digital release!? I hope not, I've...

Did I miss a digital release!? I hope not, I've been looking forward to this for ages lol
Forum: Coders. General 01 March 2021, 11:54
Replies: 14
Views: 472
Posted By roondar
+1

+1
Forum: Retrogaming General Discussion 01 March 2021, 11:54
Replies: 260
Views: 18,708
Posted By roondar
Ross was joking, there is no unexplored feature...

Ross was joking, there is no unexplored feature (so also no benefit as it doesn't exist ;)).
Forum: Amiga scene 28 February 2021, 12:34
Replies: 191
Views: 5,657
Posted By roondar
Did we? I didn't, I just had fun with my Amiga. ...

Did we? I didn't, I just had fun with my Amiga.
Actually, on a 512KB A500 coding system friendly with HDD install basically meant 'no games'. On a 1MB A500 it essentially meant 'no action games'. By...
Forum: Coders. Releases 28 February 2021, 00:47
Replies: 143
Views: 40,595
Posted By roondar
Hmm, maybe I'm misunderstanding. I'll check with...

Hmm, maybe I'm misunderstanding. I'll check with a three channel mod to be sure and come back to you. First have to find one though (as it is, my mixer test program just plays back a 4 channel mod...
Forum: Retrogaming General Discussion 28 February 2021, 00:27
Replies: 260
Views: 18,708
Posted By roondar
Don't be afraid if you can smell the result....

Don't be afraid if you can smell the result. That's normal ;)
Forum: Retrogaming General Discussion 28 February 2021, 00:17
Replies: 260
Views: 18,708
Posted By roondar
That article is wrong. There is no Blitter burst...

That article is wrong. There is no Blitter burst mode. Then again, there's no Copper burst mode either ;)
Edit: to be clear, you can set the AGA chipset into an increased fetch mode, but that only...
Forum: Amiga scene 27 February 2021, 23:59
Replies: 191
Views: 5,657
Posted By roondar
No one said you were evil for wanting to use your...

No one said you were evil for wanting to use your expansion. But then again, developers get to choose what they want to target or not. Don't like it and complain about it in public because you chose...
Forum: Amiga scene 27 February 2021, 23:22
Replies: 191
Views: 5,657
Posted By roondar
Amiga's of any sort are not up to date hardware...

Amiga's of any sort are not up to date hardware though, so that argument doesn't really work for me.
Forum: support.Games 27 February 2021, 23:15
Replies: 19
Views: 528
Posted By roondar
Truthfully, I got into watching speedruns because...

Truthfully, I got into watching speedruns because someone finished Super Mario in somewhat under 5 minutes (don't let him catch me being this imprecise though lol!) and that was quite fun to watch....
Forum: Amiga scene 27 February 2021, 21:52
Replies: 792
Views: 93,944
Posted By roondar
I just accidentally clicked on page one of the...

I just accidentally clicked on page one of the thread and went through some of the screenshots over time. This game has come a long, long way. Something to be proud of for sure :)
Forum: Coders. Releases 27 February 2021, 21:39
Replies: 143
Views: 40,595
Posted By roondar
Only feature request I'd have is a possibility to...

Only feature request I'd have is a possibility to configure a channel that the player won't use at all (including no audio interrupts for that channel, nor any other register writes to it). This...
Forum: support.Games 27 February 2021, 21:13
Replies: 19
Views: 528
Posted By roondar
I don't think cheating can be completely avoided,...

I don't think cheating can be completely avoided, so yeah - it does become about how serious you want it to be. Considering some of the rather high-profile speedrun cheating incidents I've seen...
Forum: Amiga scene 27 February 2021, 20:45
Replies: 191
Views: 5,657
Posted By roondar
That does sound reasonable, yes. We all started...

That does sound reasonable, yes. We all started somewhere, doesn't make us bad per se ;)
Forum: support.Hardware 27 February 2021, 20:02
Replies: 23
Views: 905
Posted By roondar
I love the ACA500+, it's so nice and offers all...

I love the ACA500+, it's so nice and offers all kinds of very useful features.
However, for WHDLoad, I still prefer a system with 32 bit chip ram (A3000/A1200/CD32/A4000). Reason being that some...
Forum: support.Games 27 February 2021, 19:56
Replies: 19
Views: 528
Posted By roondar
In addition, as I understand it in the PC speed...

In addition, as I understand it in the PC speed running world, it's often required that you show which version you are running. Sometimes this goes as far as requiring you to show SHA2 or similar...
Forum: Amiga scene 27 February 2021, 19:50
Replies: 191
Views: 5,657
Posted By roondar
I do feel that some of the named issues aren't...

I do feel that some of the named issues aren't very prevalent any more these days, though. Almost all of the recently released games for the Amiga I've seen already seem to do quite a lot to keep...
Forum: Coders. Asm / Hardware 27 February 2021, 19:23
Replies: 45
Views: 2,069
Posted By roondar
Guys, a couple of points I'd like to make. ...

Guys, a couple of points I'd like to make.

Most importantly, please don't turn this thread into an argument over a completely unrelated game. Not because I don't think the discussion can't be had,...
Forum: project.EAB 27 February 2021, 16:30
Replies: 3
Views: 300
Posted By roondar
Server too busy

Since a few months I've semi-regularly seen this error pop up (usually when it's indeed busy on the site) and have noticed quite a bit of lag on occasion when posting or editing posts.

Did...
Forum: Amiga scene 27 February 2021, 16:06
Replies: 191
Views: 5,657
Posted By roondar
Maybe, but where do you draw the line? I also...

Maybe, but where do you draw the line? I also mentioned the 68060, which has and still causes issues. Is that not a real Amiga?

The point I'm making is just that compatibility is not really...
Forum: Amiga scene 27 February 2021, 15:37
Replies: 191
Views: 5,657
Posted By roondar
Sure, most versions of Amiga OS won't run on a...

Sure, most versions of Amiga OS won't run on a 68060 without the OS being patched.

Quite a lot of OS friendly software won't run on a 68040 or 68060 without patches or extra libraries either (and...
Forum: Amiga scene 27 February 2021, 15:10
Replies: 191
Views: 5,657
Posted By roondar
Because it's not true - even if you follow those...

Because it's not true - even if you follow those guidelines, you'll still likely run into compatibility issues with some of the more exotic Amiga setups.
Forum: Coders. Asm / Hardware 27 February 2021, 15:00
Replies: 45
Views: 2,069
Posted By roondar
Ah, so it's 16 raster lines per channel @ ~22KHz....

Ah, so it's 16 raster lines per channel @ ~22KHz.
So I'm guessing a four channel mix would then take 64 raster lines in the same situation, or about 20% CPU time. Which would drop to about 10% for...
Forum: Amiga scene 27 February 2021, 14:53
Replies: 191
Views: 5,657
Posted By roondar
That is a very misleading statement.

That is a very misleading statement.
Forum: Coders. Asm / Hardware 27 February 2021, 14:09
Replies: 45
Views: 2,069
Posted By roondar
Thanks for the info, so it'll be faster if no...

Thanks for the info, so it'll be faster if no other activity (but slower if no fast memory). I might add it as an option later down the line then, working on something else already ;)
Forum: Amiga scene 27 February 2021, 02:07
Replies: 191
Views: 5,657
Posted By roondar
My personal opinion is that developers should...

My personal opinion is that developers should feel free to aim their games/demos at any specification they desire. I see no more problems in making an A500 only game than I see in making a Amiga OS...
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