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Search took 0.04 seconds. Search: Posts Made By: sparhawk
Forum: Coders. General 18 December 2020, 16:04
Replies: 20
Views: 1,123
Posted By sparhawk
I think that is something that I also learned...

I think that is something that I also learned quite some time ago. If you can't explain a problem properly, you don't understand it enough. And often you can already see the solution once you...
Forum: Coders. General 18 December 2020, 00:09
Replies: 20
Views: 1,123
Posted By sparhawk
So, lets hope that I gain some insights tonight....

So, lets hope that I gain some insights tonight. :D
Forum: Amiga scene 17 December 2020, 11:52
Replies: 113
Views: 10,767
Posted By sparhawk
And on top of that, would you like to play a game...

And on top of that, would you like to play a game where you constantly have to refer to the manual? I don't.
Forum: Coders. General 16 December 2020, 19:14
Replies: 20
Views: 1,123
Posted By sparhawk
LOL! Yeah, I also had bugfixes like this. Not so...

LOL! Yeah, I also had bugfixes like this. Not so often, but it happens. :D Only last year I was analyzing a particular nasty bug from my work, and then I suddenly woke up at 3AM and knew the...
Forum: Coders. General 16 December 2020, 17:27
Replies: 20
Views: 1,123
Posted By sparhawk
"Brain"coding

I wonder if other people do this as well. I don't know how many bugs I found, just by being not on the computer and just thinking about my program. I usually do this, when I'm out for a walk with my...
Forum: Coders. C/C++ 15 December 2020, 18:46
Replies: 12
Views: 603
Posted By sparhawk
But then you are back to Post #1. ;)

But then you are back to Post #1. ;)
Forum: Coders. C/C++ 15 December 2020, 17:51
Replies: 12
Views: 603
Posted By sparhawk
I just noticed that my solution doesn't really...

I just noticed that my solution doesn't really work, because if index is outside the range, then you get a negative index.
Forum: Coders. C/C++ 15 December 2020, 16:37
Replies: 12
Views: 603
Posted By sparhawk
Is the array index any value, or do you just want...

Is the array index any value, or do you just want to wrap around?

If you just want to wrap around, you can use:

wrap = ARRAYSIZE - index

This works only as long as index is smaller than...
Forum: Coders. Asm / Hardware 15 December 2020, 16:16
Replies: 4
Views: 478
Posted By sparhawk
My code has no problem anymore, because I...

My code has no problem anymore, because I realised that I was not using the DMAEN properly, so I was wondering what it is used/intended for. :)


I was taking the system save code, and used it as...
Forum: Coders. Asm / Hardware 15 December 2020, 11:34
Replies: 4
Views: 478
Posted By sparhawk
Is there a reason for DMAEN?

I had some artefacts on my screen with my system save function, and after looking at it more closely, I realized it was because I didn't use the DAMEN flag properly. Now I don't really understand why...
Forum: Amiga scene 09 December 2020, 11:25
Replies: 14
Views: 1,334
Posted By sparhawk
The CPU has to work one instruction after the...

The CPU has to work one instruction after the other. Doing what the Blitter does in code takes quite a complicated algorithm because of the bitplane organization. Moving the pixels to an arbitrary X...
Forum: Amiga scene 08 December 2020, 12:11
Replies: 14
Views: 1,334
Posted By sparhawk
You may take a look at this thread...

You may take a look at this thread http://eab.abime.net/showthread.php?t=99179 as deimos was coding a flight simulator using the blitter.
Forum: Amiga scene 07 December 2020, 18:55
Replies: 113
Views: 10,767
Posted By sparhawk
Don't know if thos would be even possible. But...

Don't know if thos would be even possible. But anyway, if you use such a protection scheme, you have to be VERY careful that it really only happens for copies, otherwise you would have to buy a lot...
Forum: Coders. Asm / Hardware 03 December 2020, 23:59
Replies: 12
Views: 917
Posted By sparhawk
But sprites are limited to four colors. Or he...

But sprites are limited to four colors. Or he would have to use several of them.
Forum: OT - General 30 November 2020, 20:52
Replies: 70
Views: 5,024
Posted By sparhawk
Then you can just as well use your real account,...

Then you can just as well use your real account, unless you are really careful with your login.


But good to know about this FB thing which means that I certainly wont buy this.
Forum: Amiga scene 30 November 2020, 07:44
Replies: 113
Views: 10,767
Posted By sparhawk
Google has a a lot of patience, so I guess this...

Google has a a lot of patience, so I guess this will be solved/accepted over time. But you are right. No access to code - no way to crack. :D
Forum: Amiga scene 28 November 2020, 00:52
Replies: 113
Views: 10,767
Posted By sparhawk
LOL! That reminds me of "Cauldron 2" on C64. I...

LOL! That reminds me of "Cauldron 2" on C64. I liked the game so much, but couldn't beat it. So I disassembled the whole memory and printed it. I took this printout for months even to school and read...
Forum: Retrogaming General Discussion 28 November 2020, 00:05
Replies: 4,483
Views: 873,306
Posted By sparhawk
I started to play Axiom Verge. I tryied it once,...

I started to play Axiom Verge. I tryied it once, but didn't get into it. Now I tried it again, and it works. What I actually find pretty cool is, that the really feels like game from "back then"(tm)....
Forum: Amiga scene 28 November 2020, 00:01
Replies: 113
Views: 10,767
Posted By sparhawk
That doesn't help. It works with banking, because...

That doesn't help. It works with banking, because you are talking to an external server where you haven no control over. If your application runs locally, the RSA key doesn't help )or any other...
Forum: Amiga scene 27 November 2020, 23:56
Replies: 113
Views: 10,767
Posted By sparhawk
I think, today, with the internet and...

I think, today, with the internet and sophisticated crypto algorithm, games can be better protected. If part of the software runs on a company server, it's quite hard to crack that. And nowadays,...
Forum: Amiga scene 27 November 2020, 23:54
Replies: 113
Views: 10,767
Posted By sparhawk
I doubt it. :) For me I can, say that it...

I doubt it. :)


For me I can, say that it wouldn't have mattered one way or the other. At that time I didn't have the money to buy too many games, and even though I lived in a big city, there...
Forum: Coders. Asm / Hardware 18 November 2020, 21:12
Replies: 12
Views: 1,496
Posted By sparhawk
If the Bob has to be at least 16x16, does this...

If the Bob has to be at least 16x16, does this mean that, if you want to print i.e. 8x8 characters, it should be done with CPU? I guess in case of text output, setting each character up for blitting...
Forum: Coders. Asm / Hardware 16 November 2020, 18:20
Replies: 44
Views: 2,880
Posted By sparhawk
I downloaded this list of 32 bit prime numbers...

I downloaded this list of 32 bit prime numbers and picked one at random.
http://www.umopit.ru/CompLab/primes32eng.htm
Forum: Coders. Asm / Hardware 16 November 2020, 12:51
Replies: 44
Views: 2,880
Posted By sparhawk
The numbers should be sufficiently random for a...

The numbers should be sufficiently random for a game. they don't need to hold against a scientific test. :) So in a game, speed is important, but I think if I have the choice between a bad generator...
Forum: Coders. Asm / Hardware 15 November 2020, 17:22
Replies: 44
Views: 2,880
Posted By sparhawk
Thanks. :D I tried to search, but I didn't find...

Thanks. :D I tried to search, but I didn't find much. Maybe the wrong search phrase.
That algorithm looks nice and simple. :)
Forum: Coders. Asm / Hardware 15 November 2020, 16:24
Replies: 44
Views: 2,880
Posted By sparhawk
Random numbers

I was looking for some algorithm how to create random numbers. When I look at the glibc source, it looks extremly complicated and expensive. Another approach I became aware of was, to use a Murmur2...
Forum: Coders. Releases 14 November 2020, 19:27
Replies: 1
Views: 575
Posted By sparhawk
amiga-utils development library

I created a library with code samples and functions which aims to make the entrance to Amiga development easier. The library is selfcontained and needs no external stuff, as I hate projects where I...
Forum: Amiga scene 08 July 2020, 11:45
Replies: 54
Views: 5,736
Posted By sparhawk
Don't see the Moneygrabbing here. You don't have...

Don't see the Moneygrabbing here. You don't have to buy them. :) I for one, like the idea, because with emulators I always wished that there were keyboards with the real layouts available. In some...
Forum: OT - General 03 July 2020, 15:11
Replies: 16
Views: 1,576
Posted By sparhawk
I already got all items I'm willing to spend...

I already got all items I'm willing to spend money for, so far. :)
If I see some steal, I might add it, but usually this doesn't rotate so much, so I don't expect any siginficant drops on my...
Forum: Coders. General 27 June 2020, 21:51
Replies: 19
Views: 1,974
Posted By sparhawk
What you said. I also think that stabillity is...

What you said. I also think that stabillity is more important for an OS, then speed, because you can always write some specialized code for your particular problem. And the OS may be updated later if...
Forum: OT - General 24 June 2020, 11:14
Replies: 16
Views: 1,576
Posted By sparhawk
So tomorrow? cool! I was already wondering,...

So tomorrow? cool! I was already wondering, because I thought it gets time for it. Already whetting my mouse pointer. :D
Forum: Coders. General 22 June 2020, 16:10
Replies: 19
Views: 1,974
Posted By sparhawk
Thanks for the explanation! :great I haven't...

Thanks for the explanation! :great
I haven't yet started to work with the blitter, because currently I work on a gfx converter that can downscale colors from RGB PNG images. It will either write out...
Forum: Coders. General 22 June 2020, 14:38
Replies: 19
Views: 1,974
Posted By sparhawk
What do you mean by mask? I thought that one can...

What do you mean by mask? I thought that one can define an offset so you can blit smaller areas into bigger areas.
Forum: Coders. General 21 June 2020, 22:29
Replies: 19
Views: 1,974
Posted By sparhawk
Benefit of interleaved gfx data

I was wondering what the benefit is if bitmaps are stored in interleaved format. As I understand it, normally you have single block for each bitmap with contigous memory. With interleaving, the...
Forum: Coders. Asm / Hardware 09 June 2020, 12:37
Replies: 6
Views: 834
Posted By sparhawk
In vasm, I use the '::' syntax to export symbols....

In vasm, I use the '::' syntax to export symbols. I don't need to use any xref/xdef with this. Or am I missing something?
Forum: Coders. Asm / Hardware 20 May 2020, 12:11
Replies: 13
Views: 1,074
Posted By sparhawk
Hmm. Not sure now. Could be I'm confusing it,...

Hmm. Not sure now. Could be I'm confusing it, because I'm using bebbos suite, and only, depending on the type of project, vlink (if it is a pure assembly project).
Forum: Coders. Asm / Hardware 19 May 2020, 11:05
Replies: 13
Views: 1,074
Posted By sparhawk
Are you using 'bsr.s'? I had a similar problem...

Are you using 'bsr.s'? I had a similar problem because the offset was to big, when the target was to far away, and got no error or warning, so I thought the code would work and in assembly it usually...
Forum: Amiga scene 18 May 2020, 19:31
Replies: 82
Views: 15,066
Posted By sparhawk
Well, I'm not an artist, so I never looked at it...

Well, I'm not an artist, so I never looked at it for this point of view. I know I liked that image because I was proud having that machine (A 1000), and that was part of it. And I know for sure that,...
Forum: Coders. General 15 May 2020, 10:26
Replies: 17
Views: 1,799
Posted By sparhawk
I use zlib. Portable and easy to use and can also...

I use zlib. Portable and easy to use and can also do inmem de-/packing.
Forum: Nostalgia & memories 12 May 2020, 12:28
Replies: 50
Views: 6,310
Posted By sparhawk
I always liked the C64 much more than the VC20,...

I always liked the C64 much more than the VC20, because of it's color. Still, I thought the A1000 looked quite professional and cool back then. Maybe this "professional" impression was also fostered...
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