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Forum: Coders. Asm / Hardware Today, 18:50
Replies: 31
Views: 814
Posted By grond
I'm not going to part with mine... ;)

I'm not going to part with mine... ;)
Forum: Coders. Asm / Hardware Today, 11:25
Replies: 31
Views: 814
Posted By grond
I very much liked this book:...

I very much liked this book: https://gitlab.com/amigasourcecodepreservation/amiga-assembler-von-null-auf-hundert

While the title doesn't really indicate it, it is just as much about OS coding on...
Forum: Retrogaming General Discussion Yesterday, 19:06
Replies: 124
Views: 4,581
Posted By grond
Well, it is an intro. We can only guess how much...

Well, it is an intro. We can only guess how much of it is precomputed. There is no need for any type of collision checks, AI or whatever. It also seems there are less objects in the intro than in the...
Forum: Retrogaming General Discussion Yesterday, 17:52
Replies: 124
Views: 4,581
Posted By grond
Well, about one third is filled with static...

Well, about one third is filled with static information...
Forum: Coders. Asm / Hardware Yesterday, 17:33
Replies: 31
Views: 814
Posted By grond
Yes, but because ThoR likes to chime in with a...

Yes, but because ThoR likes to chime in with a lot of very detailed but unrelated technical information, I wanted to present the original question to him again. He is a very knowledgable guy after...
Forum: Coders. Asm / Hardware Yesterday, 15:38
Replies: 31
Views: 814
Posted By grond
That's why I wrote "AmigaOS pointers" as opposed...

That's why I wrote "AmigaOS pointers" as opposed to just "pointers". For all other pointers the user should have control anyway. As so often, everything you write in reply to my message seems to be...
Forum: Retrogaming General Discussion Yesterday, 15:32
Replies: 35
Views: 1,353
Posted By grond
The same goes for all those many people who...

The same goes for all those many people who constantly feel the need to express their desinterest or disdain for the Vampire. For unknown reasons there does not seem to be a middleground.



...
Forum: Retrogaming General Discussion Yesterday, 15:30
Replies: 35
Views: 1,353
Posted By grond
For all I know a rather small portion of the...

For all I know a rather small portion of the A4000s sold were 040-A4000s. Since the 040-CPU board installed by Commodore sucked so badly, most people rather bought an 030 and then installed a proper...
Forum: Coders. Asm / Hardware Yesterday, 09:56
Replies: 31
Views: 814
Posted By grond
I thought all AmigaOS pointers were long-aligned...

I thought all AmigaOS pointers were long-aligned anyway (OK, A7 could be set to a word boundary; btw, are you really sure you want to do that sub on A7?). If so, all it would need to turn an AmigaOS...
Forum: Retrogaming General Discussion 25 February 2020, 19:30
Replies: 124
Views: 4,581
Posted By grond
C compiler code that cares little for...

C compiler code that cares little for superscalarity.




If we are talking about Amiga planar modes, that would be 7 MB/s for AGA and A3000-ECS (32bit buswidth) and 3.5 MB/s for OCS and...
Forum: Retrogaming General Discussion 25 February 2020, 18:13
Replies: 124
Views: 4,581
Posted By grond
It's a rough estimate. If you use bitfield...

It's a rough estimate. If you use bitfield instructions, the 080 will be much, much faster than the 10x figure given. Same for other specific code or even 080-exclusive code. If we are talking about...
Forum: Retrogaming General Discussion 25 February 2020, 11:28
Replies: 124
Views: 4,581
Posted By grond
Funny how considering lowering the minimum specs...

Funny how considering lowering the minimum specs to 060-based systems then led to people suggesting including 040 systems (a Vampire is ten times the speed of an 040...) and now we are even getting...
Forum: Coders. General 06 February 2020, 15:23
Replies: 69
Views: 4,199
Posted By grond
This can be done with the palette. You just need...

This can be done with the palette. You just need a lot of black (sky) and white (stars) colours in your palette. This means the tile can still be there but all its colours map to black and white only...
Forum: Coders. General 06 February 2020, 13:56
Replies: 69
Views: 4,199
Posted By grond
Memory impact of the pre-render can be reduced a...

Memory impact of the pre-render can be reduced a lot. Some ideas:

You only need octants of each image because of the circular symmetry. Quadrants will reduce less but make the handling very easy....
Forum: Coders. General 05 February 2020, 13:47
Replies: 69
Views: 4,199
Posted By grond
Ah, yes, this is more likely. Basically the...

Ah, yes, this is more likely. Basically the bricks are a checkerboard pattern (i.e. one tile uses e.g. colours 0..., neighbouring tile colours 16...) and each tile gives some time to change the...
Forum: Coders. General 05 February 2020, 13:39
Replies: 69
Views: 4,199
Posted By grond
Not even with just two or three bitplanes?

Not even with just two or three bitplanes?
Forum: Coders. General 05 February 2020, 12:18
Replies: 69
Views: 4,199
Posted By grond
I would assume it uses a large LUT that basically...

I would assume it uses a large LUT that basically maps screen coordinates into polar tile coordinates like all those rotator and tunnel effects in the demos do. Add a constant offset that changes per...
Forum: News 03 February 2020, 22:36
Replies: 120
Views: 14,666
Posted By grond
And yet you advertised your distribution on the...

And yet you advertised your distribution on the Apollo forum and then stopped offering it for download because people there treated you soooo badly...
Forum: Hardware mods 03 February 2020, 22:33
Replies: 180
Views: 11,777
Posted By grond
Majsta open-sourced the Vampire 1 many years ago...

Majsta open-sourced the Vampire 1 many years ago and somebody in Poland actually produced and sold them.
Forum: News 03 February 2020, 17:45
Replies: 120
Views: 14,666
Posted By grond
Despite of what may be claimed about AROS, it...

Despite of what may be claimed about AROS, it does _not_ boot on A600 or A4000 (or was it the A1200?) because of timing-related IDE-incompatibilities while there are no such problems when using...
Forum: Graphics. Work In Progress 03 February 2020, 15:29
Replies: 13
Views: 1,113
Posted By grond
The candle looks to me like a detail from some...

The candle looks to me like a detail from some 18th century painting. Very well executed. The fantasy-themed pictures could be used in some Guild-of-Thieves-type text adventure game. You have a style...
Forum: News 03 February 2020, 15:26
Replies: 120
Views: 14,666
Posted By grond
What behaviour in particular? A valid point was...

What behaviour in particular? A valid point was made: you only _claim_ that your stuff could run on real Amigas (and at the same time you claim it doesn't run on the Vampire). All we have as a proof...
Forum: Retrogaming General Discussion 03 February 2020, 15:19
Replies: 14
Views: 613
Posted By grond
Another way to look at it: if the Playstation...

Another way to look at it: if the Playstation meant that there was no interest in the Amiga as a games machine (more precisely: as the 2D-scroller computer we know) any more, it would have been the...
Forum: Amiga scene 01 February 2020, 19:49
Replies: 1,018
Views: 64,894
Posted By grond
I'm in the "2.5-inch-was-a-huge-mistake" camp. I...

I'm in the "2.5-inch-was-a-huge-mistake" camp. I spent 800DM in 1994 for a 330MB 2.5" harddisk. That was an insane amount of money. The A1200 had more than enough PCB real estate to put a 3.5" IDE...
Forum: Retrogaming General Discussion 31 January 2020, 14:58
Replies: 124
Views: 4,581
Posted By grond
Nice! Btw, you can get rid of the mouse arrow by...

Nice! Btw, you can get rid of the mouse arrow by setting the mouse sprite to a completely transparent sprite in your startup code.
Forum: Nostalgia & memories 31 January 2020, 14:50
Replies: 2,467
Views: 373,063
Posted By grond
Ay-for-kay

Ay-for-kay
Forum: Retrogaming General Discussion 30 January 2020, 07:51
Replies: 18
Views: 627
Posted By grond
You can buy pretty decent replica of the Atari...

You can buy pretty decent replica of the Atari 2600 joystick new. I would prefer a Quickshot 2, though...
Forum: Coders. Asm / Hardware 29 January 2020, 13:40
Replies: 11
Views: 748
Posted By grond
You can always do stuff like dx += dx>>2 for a...

You can always do stuff like dx += dx>>2 for a mul*1.25 if you have enough post-point digits.

EDIT: I just realised that this is exactly what you were referring to. Sorry!
Forum: Retrogaming General Discussion 29 January 2020, 07:51
Replies: 30
Views: 916
Posted By grond
The sound on the Paula video is just louder and...

The sound on the Paula video is just louder and probably more compressed than on the arcade video. The videos really are no basis for judging quality of the respective audio outputs.
Forum: Coders. Asm / Hardware 27 January 2020, 11:45
Replies: 9
Views: 439
Posted By grond
Such a feature would have to have a way of...

Such a feature would have to have a way of turning it on and off at specific places in the code. I mean, I'd never want to go through a gazillion such warnings for non-critical code just to find the...
Forum: Coders. Asm / Hardware 22 January 2020, 14:55
Replies: 17
Views: 596
Posted By grond
Why? One of the strong points of 68k vs. x86 is...

Why? One of the strong points of 68k vs. x86 is the word-aligned code. An 8 bit index mode would either have resulted in padding and been completely useless or would have made 68k to only be...
Forum: Amiga scene 21 January 2020, 11:04
Replies: 1,018
Views: 64,894
Posted By grond
The A1200 came out in 1992 :)

The A1200 came out in 1992 :)
Forum: Amiga scene 21 January 2020, 10:47
Replies: 234
Views: 7,843
Posted By grond
I also :shocked at that. And at the same time he...

I also :shocked at that. And at the same time he tries to take the moral high ground by alledging you of having uprated your game and downrated your competition because, after all, horizontal...
Forum: Amiga scene 20 January 2020, 13:45
Replies: 234
Views: 7,843
Posted By grond
Perhaps there should be a poll about how adequate...

Perhaps there should be a poll about how adequate people find it if somebody calls a review "totally bias and a crock of shite", alleges a game author of favourably reviewing his own game and marking...
Forum: Amiga scene 16 January 2020, 11:58
Replies: 21
Views: 1,938
Posted By grond
Does the "last game..." category make all that...

Does the "last game..." category make all that much sense? I'm pretty sure one could find some late mini game that uses very little memory...
Forum: Coders. Asm / Hardware 11 January 2020, 10:08
Replies: 35
Views: 1,170
Posted By grond
Ah, OK, you are only trolling.

Ah, OK, you are only trolling.
Forum: Coders. Asm / Hardware 10 January 2020, 23:03
Replies: 35
Views: 1,170
Posted By grond
Why would this not be the right forum category?

Why would this not be the right forum category?
Forum: Coders. Asm / Hardware 10 January 2020, 23:02
Replies: 35
Views: 1,170
Posted By grond
On AmigaOS you can run MacOS as a task in AmigaOS...

On AmigaOS you can run MacOS as a task in AmigaOS (it's called Shapeshifter) while AmigaOS is happily multitasking. Then in MacOS you can e.g. run DukeNukem3D and still switch to any other screen...
Forum: Coders. Asm / Hardware 10 January 2020, 16:09
Replies: 35
Views: 1,170
Posted By grond
The Vampire can use the copper on chunky displays...

The Vampire can use the copper on chunky displays and it can display both a planar and a chunky screen at the same time. Better ask Gunnar for details.

But the copper doesn't do playfields, all it...
Forum: Coders. Asm / Hardware 10 January 2020, 16:03
Replies: 35
Views: 1,170
Posted By grond
You keep forgetting that the Amiga is not a games...

You keep forgetting that the Amiga is not a games console but a personal computer, more specifically a multitasking computer. This means that you may want to run many productivity programs at the...
Showing results 1 to 40 of 717

 
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