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Forum: Amiga scene 11 May 2018, 02:18
Replies: 508
Views: 19,087
Posted By robinsonb5
It exploited the ability of MUI to embed images...

It exploited the ability of MUI to embed images within text using escape sequences. It would simply specify an image filename on the "APIPE:" device, which would cause that filename to be executed...
Forum: Coders. General 06 May 2018, 17:36
Replies: 6
Views: 495
Posted By robinsonb5
Would an acceptable compromise be to perform the...

Would an acceptable compromise be to perform the byte-addition as usual, but for the upper bits of d2_1 to come from d1_0 instead of d2_0?
I.e., add.b d0,d1,d2 will leave all 32 bits of d2 set to...
Forum: Amiga scene 24 April 2018, 23:42
Replies: 233
Views: 31,899
Posted By robinsonb5
Just finished building the first of my two kits -...

Just finished building the first of my two kits - works a treat! :)
Forum: Coders. General 23 April 2018, 00:07
Replies: 5
Views: 244
Posted By robinsonb5
Thanks for testing. I've found the source of the...

Thanks for testing. I've found the source of the problem - it turns out the version of uae I'm using doesn't have bsdsocket support compiled in (and I hadn't found the user-interface option to...
Forum: Coders. General 22 April 2018, 15:17
Replies: 5
Views: 244
Posted By robinsonb5
Thanks for the responses - the example code in...

Thanks for the responses - the example code in the AmiTCP dev kit asks for version 4, but changing that to 0 makes no difference. Example code attached:


#include <stdio.h>

#include...
Forum: Coders. General 22 April 2018, 00:18
Replies: 5
Views: 244
Posted By robinsonb5
Confused about Socket programming and UAE / FSUAE

I have a project that's going to involve TCP/IP socket comms between an Amiga and a Linux host, and never having done any TCP/IP programming on the Amiga before, I'm trying to figure out what I need....
Forum: Coders. Asm / Hardware 13 April 2018, 13:18
Replies: 7
Views: 473
Posted By robinsonb5
It can be done quickly enough to look nice with...

It can be done quickly enough to look nice with low-res HAM6 images (Here's an AMOSPro demonstration - http://retroramblings.net/?p=25) but I think it'd be too slow with HAM8.
Forum: Retrogaming General Discussion 30 March 2018, 01:56
Replies: 10
Views: 545
Posted By robinsonb5
Realistically, the only thing that could have...

Realistically, the only thing that could have redeemed HAM mode for action games would have been much larger sprites, so that in-game objects could have been drawn without disturbing the background. ...
Forum: Amiga scene 25 March 2018, 14:46
Replies: 12
Views: 643
Posted By robinsonb5
Can you open two different filehandles on the...

Can you open two different filehandles on the same file, then seek the second one to the start of the second channel's data?



The filesystem allows it, but with large files it may introduce...
Forum: Amiga scene 19 March 2018, 13:16
Replies: 508
Views: 19,087
Posted By robinsonb5
I'm not sure Commodore were the best authority on...

I'm not sure Commodore were the best authority on what constituted the "soul" of the Amiga! Yes, everyone know RTG was the way ahead, but it was also the way towards convergence - platforms losing...
Forum: support.Hardware 18 March 2018, 23:26
Replies: 8
Views: 332
Posted By robinsonb5
Are you using a real Amiga mouse or a PC mouse...

Are you using a real Amiga mouse or a PC mouse with an adapter?
Forum: News 11 March 2018, 19:17
Replies: 118
Views: 12,448
Posted By robinsonb5
Remind me if no-one else does in the next few...

Remind me if no-one else does in the next few days and I'll see what I can do.
Forum: News 05 March 2018, 23:48
Replies: 118
Views: 12,448
Posted By robinsonb5
The Flea's Minimig core includes two CPUs - one...

The Flea's Minimig core includes two CPUs - one for the Amiga replica, and the other to run the menus and disk emulation. The second CPU has its own UART, and it's debug info from this second CPU...
Forum: Coders. General 02 March 2018, 23:34
Replies: 15
Views: 969
Posted By robinsonb5
That's right. The tricky bit is that the repeat...

That's right. The tricky bit is that the repeat width will be different for each row of the texture, since you're scrolling the rows at different speeds, but want them to wrap around at the same...
Forum: Coders. General 02 March 2018, 22:28
Replies: 15
Views: 969
Posted By robinsonb5
You don't blit - you use a static bitmap, and at...

You don't blit - you use a static bitmap, and at the beginning of each line you use the copper to set the bitplane pointers and scroll registers.
Then when each line has scrolled by however many...
Forum: support.Hardware 19 February 2018, 13:26
Replies: 10
Views: 503
Posted By robinsonb5
If you're using the entire SD card as a hard...

If you're using the entire SD card as a hard drive, you'd expect to have an Amiga-style partition table and Amiga formatted partitions. The menu system won't understand those - there needs to be a...
Forum: support.Hardware 17 February 2018, 22:47
Replies: 8
Views: 353
Posted By robinsonb5
Does it happen if you just click and hold the...

Does it happen if you just click and hold the mouse on an empty part of the desktop, or if you drag a select box around some files?

I'm wondering if it's a power-supply or capacitor issue.
Forum: News 14 February 2018, 13:50
Replies: 118
Views: 12,448
Posted By robinsonb5
Some minimig variants will allow you to force the...

Some minimig variants will allow you to force the screenmode (PAL / NTSC / scandouble) on hard reset / boot by pressing F1/2/3 or 4 - no idea if the Flea variant is one of them but it's worth a go. ...
Forum: Amiga scene 13 February 2018, 17:43
Replies: 233
Views: 31,899
Posted By robinsonb5
No worries - no hurry at all. Glad to see the...

No worries - no hurry at all. Glad to see the project's popular!
Forum: support.Hardware 09 February 2018, 17:31
Replies: 9
Views: 300
Posted By robinsonb5
Yes, definitely check that. My guess would...

Yes, definitely check that.

My guess would be this is a cracked solder joint or dried out capacitor in the A520 modulator somewhere, rather than in the Amiga itself.
Forum: Retrogaming General Discussion 07 February 2018, 17:56
Replies: 114
Views: 5,694
Posted By robinsonb5
Also bear in mind that the posts Facebook chooses...

Also bear in mind that the posts Facebook chooses to show to people tend to be ones on which people have commented. That doesn't always mean that the posts are more interesting - they're just more...
Forum: Coders. Asm / Hardware 07 February 2018, 13:28
Replies: 28
Views: 1,798
Posted By robinsonb5
The simplest answer is probably just to skip the...

The simplest answer is probably just to skip the LoadView(NULL) under KS1.3 or earlier. It should be reasonably safe to assume that KS1.3 won't have left the chipset in a non-compatible state.
Forum: support.Apps 24 January 2018, 10:31
Replies: 17
Views: 736
Posted By robinsonb5
Ah - that's a shame. That would explain why I...

Ah - that's a shame. That would explain why I gave up trying to add support way back when. I couldn't remember what the reason was, but I knew there was one.
Forum: support.Apps 23 January 2018, 23:46
Replies: 17
Views: 736
Posted By robinsonb5
For what it's worth, I'm FreeWheel's author, and...

For what it's worth, I'm FreeWheel's author, and I'm quite happy for anyone to hack on this and release their own version. I'm also quite happy for anyone to send me patches or improvements and do...
Forum: Coders. Asm / Hardware 22 January 2018, 18:21
Replies: 134
Views: 10,156
Posted By robinsonb5
I don't think so - I think (though I'd love to...

I don't think so - I think (though I'd love to proved wrong!) it uses the same binary blob of pre-raycasted binary data that Britelite included in the previews. In the first post he describes it:
Forum: Coders. Asm / Hardware 22 January 2018, 16:56
Replies: 134
Views: 10,156
Posted By robinsonb5
As I understand it, at the moment "all" the...

As I understand it, at the moment "all" the engine is doing is scaling wall textures ("all" in quotes, because it's doing that very impressively!) - for each frame it's starting with a precalculated...
Forum: Retrogaming General Discussion 13 January 2018, 23:21
Replies: 253
Views: 16,326
Posted By robinsonb5
It uses a PSOC microcontroller which has a small...

It uses a PSOC microcontroller which has a small amount of programmable logic. The microcontroller portion talks to the Sega pad, while the programmable logic duplicates the shift register in a CD32...
Forum: Retrogaming General Discussion 13 January 2018, 20:54
Replies: 253
Views: 16,326
Posted By robinsonb5
All buttons are readable - there's no problem...

All buttons are readable - there's no problem reading one of these from any Amiga.
Forum: Retrogaming General Discussion 13 January 2018, 18:11
Replies: 253
Views: 16,326
Posted By robinsonb5
If you make a game that needs a decent gamepad,...

If you make a game that needs a decent gamepad, then leverage it as another sales option: Digital copy, physical copy and physical copy with bundled gamepad!
Forum: Retrogaming General Discussion 12 January 2018, 00:45
Replies: 253
Views: 16,326
Posted By robinsonb5
CD32 pads work fine on an A500. The CD32 was...

CD32 pads work fine on an A500.

The CD32 was effectively an A1200 with CDROM drive - the only other addition was the Chunky to Planar converter that was built into the Akiko chip.
Forum: support.WinUAE 09 January 2018, 01:00
Replies: 19
Views: 1,063
Posted By robinsonb5
The 68060 preloads the instruction cache with...

The 68060 preloads the instruction cache with code that might be executed, but doesn't actually execute it. Current CPUs do actually execute the code speculatively - discarding and rolling back the...
Forum: Coders. C/C++ 09 January 2018, 00:46
Replies: 3
Views: 464
Posted By robinsonb5
Are you getting incorrect results? You're...

Are you getting incorrect results?
You're asking for a pair of 32-bit values to be multiplied, and for the lower 32-bits of the result (which would be 64-bit) to be returned, and that's what the...
Forum: support.WinUAE 08 January 2018, 15:35
Replies: 19
Views: 1,063
Posted By robinsonb5
That was my first thought too - then I read that...

That was my first thought too - then I read that the Spectre exploit has been demonstrated using javascript.
Forum: support.Hardware 05 January 2018, 01:04
Replies: 5
Views: 232
Posted By robinsonb5
My A500+ has one of these on the front edge of...

My A500+ has one of these on the front edge of the RF shield - actually nowhere near the floppy - it's just to the right of the frontmost screwhole under the spacebar. I presume it's there just to...
Forum: Coders. Asm / Hardware 29 December 2017, 16:17
Replies: 3
Views: 455
Posted By robinsonb5
Many thanks - that was indeed my problem, and...

Many thanks - that was indeed my problem, and having changed my BPLCON2 value from 0x7f to 0x64 it works as expected.
Thanks again!
Forum: Coders. Asm / Hardware 29 December 2017, 15:09
Replies: 3
Views: 455
Posted By robinsonb5
Display problem - works on emulation, not on real hardware

I've been tinkering with a graphics demo to draw a Space Harrier style chequered floor and got a little prototype working reasonably well - or so I thought.
It works fine on linux uae 0.8.15, the...
Forum: Retrogaming General Discussion 26 December 2017, 22:34
Replies: 184
Views: 15,243
Posted By robinsonb5
Yes, it's easy to build a precalculated array of...

Yes, it's easy to build a precalculated array of angles, one for each column on the screen, then these can be rotated just by adding the current viewing angle.

Each column of pixels to be...
Forum: Coders. General 23 December 2017, 14:53
Replies: 124
Views: 12,153
Posted By robinsonb5
That is looking really good - well done!

That is looking really good - well done!
Forum: Retrogaming General Discussion 20 December 2017, 20:13
Replies: 20
Views: 920
Posted By robinsonb5
Zeewolf 2, Vaxine and ProTracker!

Zeewolf 2, Vaxine and ProTracker!
Forum: Nostalgia & memories 08 December 2017, 13:22
Replies: 147
Views: 13,014
Posted By robinsonb5
It's just a question of bandwidth. The...

It's just a question of bandwidth. The "unshackling" was done by making the Chip RAM bus 32-bits wide instead of 16-bits wide, and by doubling the transfer rate between the Chip RAM and chipset,...
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