English Amiga Board


Go Back   English Amiga Board > Search Forums

Showing results 1 to 40 of 420
Search took 0.04 seconds.
Search: Posts Made By: zero
Forum: News 21 June 2022, 11:45
Replies: 194
Views: 48,509
Posted By zero
I was going to ask how feasible this kind of port...

I was going to ask how feasible this kind of port would have been back in the day. From what I've heard it was rare for the people doing ports to have access to the source code or any of the graphics...
Forum: Amiga scene 15 May 2022, 12:07
Replies: 22
Views: 1,870
Posted By zero
Thanks, that's fascinating. At least you can fix...

Thanks, that's fascinating. At least you can fix it.

I wonder what Terry did then, having a bunch of disks that could not be decompressed.
Forum: Amiga scene 14 May 2022, 23:19
Replies: 22
Views: 1,870
Posted By zero
How did they get corrupted? Is it a transfer...

How did they get corrupted? Is it a transfer error or broken DMS program or..?
Forum: project.Amiga Game Factory 24 April 2022, 12:19
Replies: 456
Views: 90,488
Posted By zero
Wow, that's really impressive. Congratulations on...

Wow, that's really impressive. Congratulations on that!
Forum: project.Amiga Game Factory 20 April 2022, 18:44
Replies: 456
Views: 90,488
Posted By zero
Can I ask how you coded this? Did you have access...

Can I ask how you coded this? Did you have access to the source code or was it all reverse engineered?
Forum: Amiga scene 10 April 2022, 17:32
Replies: 22
Views: 1,870
Posted By zero
Let us know if you find any gems in there.

Let us know if you find any gems in there.
Forum: Amiga scene 04 April 2022, 12:47
Replies: 22
Views: 1,870
Posted By zero
Thanks. I wonder if these would be worth putting...

Thanks. I wonder if these would be worth putting on Aminet? The issue is getting the descriptions for Aminet.
Forum: Amiga scene 04 April 2022, 12:44
Replies: 22
Views: 1,870
Posted By zero
Where is the file server? I can upload there...

Where is the file server? I can upload there...
Forum: Amiga scene 04 April 2022, 11:52
Replies: 22
Views: 1,870
Posted By zero
Feel free to mirror them here if you like. I...

Feel free to mirror them here if you like. I haven't been through every disk so I don't know if there is anything new or any gems there.

If you have more Amiga stuff, especially PD, it's worth...
Forum: Amiga scene 03 April 2022, 15:41
Replies: 22
Views: 1,870
Posted By zero
Terry Green PD

I was going through some old discs and came upon a backup of a PD library. The only identification I could see was the name "Terry Green", but I don't recall it from back in the day.

Anyone know...
Forum: support.Hardware 25 February 2022, 10:57
Replies: 10
Views: 1,342
Posted By zero
eBay? ...

eBay?

https://www.ebay.co.uk/itm/164183847148?mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338722076&customid=&toolid=10050
Forum: request.UAE Wishlist 23 February 2022, 15:42
Replies: 42
Views: 18,964
Posted By zero
Yes, that's what I'm saying. Fortunately the USB...

Yes, that's what I'm saying. Fortunately the USB protocol decoder in Sigrok is very forgiving and will cope just fine at 50MHz, and can even decode a lot of it at 24MHz.

Another reason why I like...
Forum: request.UAE Wishlist 22 February 2022, 15:49
Replies: 42
Views: 18,964
Posted By zero
Yeah, it would be fine if they had compression...

Yeah, it would be fine if they had compression but they don't seem to. Useless for the stuff I am working on like USB (12MHz). I find that even 2x the signal frequency is unreliable, e.g. I have a...
Forum: request.UAE Wishlist 22 February 2022, 14:24
Replies: 42
Views: 18,964
Posted By zero
Thanks, that's encouraging. If you have...

Thanks, that's encouraging.

If you have experience in this area it would be interesting to know how the scope's LA works, in terms of if you can capture say 10 seconds of data. There's really very...
Forum: request.UAE Wishlist 16 February 2022, 10:10
Replies: 42
Views: 18,964
Posted By zero
I think scope LAs are never going to be very...

I think scope LAs are never going to be very good. I'd only get one if it was usable with Sigrok.

Have you tried the Siglent with Sigrok? It is supposed to be supported and in theory could be a...
Forum: request.UAE Wishlist 14 February 2022, 12:12
Replies: 42
Views: 18,964
Posted By zero
I was considering the DSLogic too. I was looking...

I was considering the DSLogic too. I was looking at the basic model because it is supported by Sigrok. I like the look of the Kingst logic analysers too, but only the lower end models are supported....
Forum: support.Hardware 13 February 2022, 22:47
Replies: 10
Views: 1,342
Posted By zero
These guys might ship to you:...

These guys might ship to you: https://www.electromyne.de/Electronic-Components-Switches---Schalter-Solteam-PS3-22SP-Power-Push-Button-Switch-Cable-Schalter-Taster-Kabel-10A-250VAC.html

You might...
Forum: Coders. Asm / Hardware 13 February 2022, 22:06
Replies: 296
Views: 282,732
Posted By zero
Thanks, that's interesting. I'm actually in the...

Thanks, that's interesting. I'm actually in the market for an logic analyser at the moment. Can I was which one you use?
Forum: Coders. Asm / Hardware 13 February 2022, 14:45
Replies: 296
Views: 282,732
Posted By zero
How on Earth did you manage to find that and...

How on Earth did you manage to find that and characterize it so well? Impressive stuff.
Forum: Coders. General 23 December 2021, 16:32
Replies: 20
Views: 3,878
Posted By zero
I know what you are getting at, what I'm saying...

I know what you are getting at, what I'm saying is that if you use a single playfield you get the fast blitting and fast restore, and draw the road with the copper and sprites.

Do you understand...
Forum: Coders. General 22 December 2021, 12:14
Replies: 20
Views: 3,878
Posted By zero
You can, but then you need dual playfield which...

You can, but then you need dual playfield which uses lots of DMA too. That's why I think sprites+copper for the road is a good idea, uses less DMA than all other options.
Forum: Coders. General 21 December 2021, 14:05
Replies: 137
Views: 40,259
Posted By zero
Would be nice to get an official explanation of...

Would be nice to get an official explanation of how the effect works.

Looking at it, my guess is that it uses a pre-rendered set of bitplanes that provide the "texture", i.e. the lighting and the...
Forum: Coders. General 14 December 2021, 17:24
Replies: 10
Views: 3,195
Posted By zero
The blitter is a very powerful tool for...

The blitter is a very powerful tool for accelerating these kinds of bit handling functions that the 68k is bad at. It's also pretty complex to get it to do what you want, really need to wrap your...
Forum: Coders. General 14 December 2021, 17:14
Replies: 20
Views: 3,878
Posted By zero
I've been thinking about this kind of things for...

I've been thinking about this kind of things for a few years. I think the fastest way might be to use the copper and sprites to generate the track, so they use zero bitplanes.

The copper would...
Forum: Coders. General 13 December 2021, 23:18
Replies: 46
Views: 10,157
Posted By zero
I've been trying out Ghidra with the Amiga hunk...

I've been trying out Ghidra with the Amiga hunk extension. I think it's struggling with Sidewinder because the game was written in assembler.

For example, there are a lot f lines like this:
...
Forum: support.Hardware 23 August 2021, 10:15
Replies: 4
Views: 802
Posted By zero
Thanks, I was afraid you might say that. Couldn't...

Thanks, I was afraid you might say that. Couldn't find much documentation for this monitor so I'll have to just figure it out when I have time.
Forum: support.Hardware 22 August 2021, 23:18
Replies: 4
Views: 802
Posted By zero
Philips CM-8833-II monitor capacitors

I have an almost be CM-8833 mk II monitor. Guy bought it for a project that never happened so it's got about 1 hour of use on it, mostly me testing it out.

Everything looks perfect but I have not...
Forum: support.Hardware 10 June 2021, 12:41
Replies: 20
Views: 2,299
Posted By zero
Yes, the problem is that not all DMA is equal....

Yes, the problem is that not all DMA is equal. Most of the time it's "best effort", so if something else is competing for bandwidth it can get delayed by a cycle or two.

To an extent some delay...
Forum: support.Hardware 08 June 2021, 16:02
Replies: 20
Views: 2,299
Posted By zero
I mean you need to be able to have a timer...

I mean you need to be able to have a timer running in the MCU that samples a port periodically and saves the data into a buffer, which is then send over USB.

On an XMEGA it's really easy, you just...
Forum: support.Hardware 03 June 2021, 14:01
Replies: 20
Views: 2,299
Posted By zero
I looked at it but there was an issue... Maybe...

I looked at it but there was an issue... Maybe something to do with being able to synchronously sample a port?

At the moment I think the best option would be a SAM3 micro, which should be able to...
Forum: support.Hardware 21 May 2021, 11:47
Replies: 20
Views: 2,299
Posted By zero
I've been thinking about this a bit more. There...

I've been thinking about this a bit more. There is a SAM3 ARM MCU that has USB 2.0 and an external RAM interface which could do this using an external high speed ADC.

It's still a bit bandwidth...
Forum: support.Hardware 10 May 2021, 16:28
Replies: 20
Views: 2,299
Posted By zero
That ST part is a beast. Would make sense to use...

That ST part is a beast. Would make sense to use something like that, but as a hobby thing I just don't have to time to work with it I think. Well, maybe I should look, perhaps I could just rip-off...
Forum: support.Hardware 10 May 2021, 10:56
Replies: 20
Views: 2,299
Posted By zero
Well I was planning to just use USB to interface...

Well I was planning to just use USB to interface to the computer. You could just use SPI or something though, as long as it is reasonably fast. For this kind of data recovery application you need to...
Forum: support.Hardware 10 May 2021, 09:28
Replies: 20
Views: 2,299
Posted By zero
I thought about using a USB scope like the Hantek...

I thought about using a USB scope like the Hantek or Picoscope. The goal was to produce something low cost that can be set up and used to churn out disk images.

I see Hantek offer an SDK. I have...
Forum: support.Hardware 09 May 2021, 21:46
Replies: 20
Views: 2,299
Posted By zero
Thanks Jeff, that's really helpful and...

Thanks Jeff, that's really helpful and interesting. So it looks like having an analogue capture would be of some use.

Question is if this idea will be adequate. pandy71, the part I am looking at...
Forum: support.Hardware 09 May 2021, 12:47
Replies: 20
Views: 2,299
Posted By zero
Hmm, so it seems that KF works because the "weak"...

Hmm, so it seems that KF works because the "weak" bit are actually just very short bits. Same signal level, just a signal that is right on the limit of what the Amiga FDC can read and combined with...
Forum: support.Hardware 09 May 2021, 11:51
Replies: 20
Views: 2,299
Posted By zero
Analogue floppy disk reader project

I've started work on a project to read floppy disks at the analogue level.

Stuff like Kryoflux uses the digital output of the drive only. I want to capture the analogue waveform, as you would see...
Forum: Coders. Asm / Hardware 04 April 2021, 12:40
Replies: 84
Views: 13,514
Posted By zero
Great, efficient use of the blitter by pink. ...

Great, efficient use of the blitter by pink.

I wonder how many games from the 80s and 90s came anywhere close to being this efficient. On the one hand the tools we have now to check things like...
Forum: Coders. C/C++ 29 March 2021, 17:37
Replies: 20
Views: 3,336
Posted By zero
I didn't have much time to work on this lately...

I didn't have much time to work on this lately but I have build the "speedcode":

bset d0,3920(a0)
bset d0,6970(a0)
rts

I build the code on the Amiga, not pre-calc, so I can later add some...
Forum: Coders. C/C++ 12 March 2021, 16:17
Replies: 11
Views: 1,938
Posted By zero
It just makes it run the C preprocessor over the...

It just makes it run the C preprocessor over the .s file before compiling it, so you can use C preprocessor directives like #define and #if.

I am only just getting back into 68k assembler and...
Showing results 1 to 40 of 420

 
Forum Jump

All times are GMT +2. The time now is 16:56.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Page generated in 0.11327 seconds with 10 queries