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Forum: support.Hardware Yesterday, 16:01
Replies: 2
Views: 87
Posted By robinsonb5
The driver should only be needed to enable the...

The driver should only be needed to enable the mouse wheel and any extra buttons, though - movement and left/right buttons should work without a driver.

It might just be that particular mouse...
Forum: support.Hardware Yesterday, 14:09
Replies: 78
Views: 2,483
Posted By robinsonb5
The scrolling chequerboard behind the credits...

The scrolling chequerboard behind the credits text 19 seconds in, maybe?
Forum: support.Hardware 01 August 2020, 17:43
Replies: 78
Views: 2,483
Posted By robinsonb5
Not yet - once I have a MiSTer to experiment with...

Not yet - once I have a MiSTer to experiment with it shouldn't take too long, though; weeks rather than months, certainly.





A self-booting ADF is now in the Zone.
Forum: support.Hardware 31 July 2020, 15:18
Replies: 78
Views: 2,483
Posted By robinsonb5
I certainly can't disagree with that - as one of...

I certainly can't disagree with that - as one of the few developers actively working on Minimig currently, I have been known to use WinUAE rather than real hardware for reference!
Forum: support.Hardware 31 July 2020, 12:33
Replies: 78
Views: 2,483
Posted By robinsonb5
Sure - done.

Sure - done.
Forum: support.Hardware 31 July 2020, 11:55
Replies: 78
Views: 2,483
Posted By robinsonb5
Sure - but it's still basically what would happen...

Sure - but it's still basically what would happen if someone built a new Amiga today just by copying observed behaviour, rather than working from the original plans and specs - and thus there will...
Forum: support.Hardware 30 July 2020, 16:04
Replies: 22
Views: 669
Posted By robinsonb5
When you measured the voltage fluctuations, where...

When you measured the voltage fluctuations, where did you place the probes? (Both positive and negative probes.)

What else do you have connected to the Amiga?
Forum: Amiga scene 28 July 2020, 20:18
Replies: 486
Views: 68,370
Posted By robinsonb5
PS/2 and USB mice are generally fine, but the...

PS/2 and USB mice are generally fine, but the acceleration habit was adopted in the days of horrible 1200 baud RS232 serial mice. Using one of those always felt to me like trying to walk when my...
Forum: Coders. System 28 July 2020, 12:51
Replies: 16
Views: 750
Posted By robinsonb5
Is it a fragmentation issue? If you're randomly...

Is it a fragmentation issue?
If you're randomly allocating and freeing larger numbers of memory chunks, and not freeing them in reverse order of allocation, you could end up without a large enough...
Forum: Coders. System 28 July 2020, 09:23
Replies: 16
Views: 750
Posted By robinsonb5
Where you do define Chip and Mem_Clear? (I...

Where you do define Chip and Mem_Clear? (I though the official includes call them MEMF_CHIP and MEMF_CLEAR, respectively?)
Make sure you're using the flag definitions, not the bit definitions....
Forum: Coders. General 25 July 2020, 14:58
Replies: 54
Views: 8,385
Posted By robinsonb5
Oh that's clever! The value in d2 is a...

Oh that's clever!

The value in d2 is a bitmap which specifies which results need tweaking; where it contains a 1, the result of the multiply will be adjusted downwards by 1.

the 61865 is a...
Forum: Hardware mods 24 July 2020, 20:48
Replies: 3
Views: 739
Posted By robinsonb5
That is unbelievably cool!

That is unbelievably cool!
Forum: support.Hardware 22 July 2020, 19:31
Replies: 5
Views: 365
Posted By robinsonb5
AGA can create almost any vertical resolution you...

AGA can create almost any vertical resolution you like - it's just a question of whether (a) your monitor can display it, and (b) whether you can tolerate the flicker.

When I had a M1438 the most...
Forum: Amiga scene 20 July 2020, 20:55
Replies: 184
Views: 10,084
Posted By robinsonb5
Do you know whether your custom format would work...

Do you know whether your custom format would work with a Gotek? (I haven't been keeping up with which image formats the newer firmware supports.)
Forum: Amiga scene 20 July 2020, 00:01
Replies: 184
Views: 10,084
Posted By robinsonb5
I'd vote for standard ADF if it will fit, two...

I'd vote for standard ADF if it will fit, two disks (9-fingers style) if not, or alternatively make it runnable from a shell, and distribute an LHA file. (And the reason I vote that way? Those...
Forum: Nostalgia & memories 17 July 2020, 20:29
Replies: 216
Views: 20,738
Posted By robinsonb5
Indeed - although bitplanes were at least useful...

Indeed - although bitplanes were at least useful in keeping memory usage down, considering 256K was considered a lot of RAM when the chipset was designed.
Forum: Amiga scene 17 July 2020, 10:16
Replies: 184
Views: 10,084
Posted By robinsonb5
The expensive way, presumably, to use say, four...

The expensive way, presumably, to use say, four rather than two buffers, and a three bitplane screen, with the two extra bitplanes set to the two previous frames?


The big advantage of that...
Forum: Retrogaming General Discussion 17 July 2020, 09:22
Replies: 124
Views: 5,167
Posted By robinsonb5
To be honest the biggest factor in the bass...

To be honest the biggest factor in the bass response of a particukar computer isn't the sound chip, it's the size of the AC coupling capacitors on the audio output.

The characteristic cruncyy 8bit...
Forum: support.Hardware 16 July 2020, 17:57
Replies: 50
Views: 2,267
Posted By robinsonb5
That's great news - congrats!

That's great news - congrats!
Forum: Amiga scene 15 July 2020, 19:58
Replies: 184
Views: 10,084
Posted By robinsonb5
Yes indeed - I'll be honest, I was tinkering with...

Yes indeed - I'll be honest, I was tinkering with this mostly out of idle curiosity because I wanted a day off from the FPGA stuff that I usually immerse myself in - so I probably won't take the...
Forum: Amiga scene 15 July 2020, 00:37
Replies: 184
Views: 10,084
Posted By robinsonb5
A little bit more data: If I output the whole...

A little bit more data:
If I output the whole animation in a simplistic binary format, 1 byte with the number of words to skip, 2 bytes with a literal word to write to memory, I end up with...
Forum: Coders. Asm / Hardware 15 July 2020, 00:26
Replies: 224
Views: 21,499
Posted By robinsonb5
Really interesting stuff - thanks for taking the...

Really interesting stuff - thanks for taking the time to do that.

So what would be your thoughts for the best way to draw more efficiently?

Maybe scroll the static scenery using bitplane...
Forum: Amiga scene 14 July 2020, 16:06
Replies: 184
Views: 10,084
Posted By robinsonb5
Agreed - however, if you look at the data, for...

Agreed - however, if you look at the data, for very many of those words only one bit is set, so I'd expect a much more efficient encoding to be possible. Actually, I should see how many unique words...
Forum: Amiga scene 14 July 2020, 12:37
Replies: 184
Views: 10,084
Posted By robinsonb5
I've been tinkering with this a little this...

I've been tinkering with this a little this morning - I've picked a couple of busy-looking frames and done a horizontal edge-detect to find the boundaries for blitter fill.

I'm assuming here that...
Forum: support.Hardware 14 July 2020, 12:12
Replies: 50
Views: 2,267
Posted By robinsonb5
OK, can you check with your scope that the...

OK, can you check with your scope that the voltage remains stable when you try and step the head and turn the motor on using DiagROM? I'm wondering if you've got voltage but basically no current...
Forum: Coders. Asm / Hardware 14 July 2020, 10:27
Replies: 224
Views: 21,499
Posted By robinsonb5
Awesome - look forward to it! :great

Awesome - look forward to it! :great
Forum: Coders. Asm / Hardware 14 July 2020, 09:29
Replies: 224
Views: 21,499
Posted By robinsonb5
Any chance of a video for those of us without...

Any chance of a video for those of us without easy access to a Windows / winUAE installation?
Forum: Amiga scene 13 July 2020, 22:53
Replies: 184
Views: 10,084
Posted By robinsonb5
Right - but there are a *lot* of possible 16x16...

Right - but there are a *lot* of possible 16x16 blocks - that LUT's going to be pretty big unless I'm misunderstanding you?






If you're blitter filling, that can be done with the blitter's...
Forum: Amiga scene 13 July 2020, 21:18
Replies: 184
Views: 10,084
Posted By robinsonb5
Just thinking aloud here, but it seems like this...

Just thinking aloud here, but it seems like this is a gift for the blitter's fill mode.

How about, to encode a frame, start at the top left, scan from left to right, count for how many words the...
Forum: support.Games 13 July 2020, 17:36
Replies: 30
Views: 1,684
Posted By robinsonb5
You've pretty much summed up the entire subject,...

You've pretty much summed up the entire subject, right there!
Forum: support.Games 13 July 2020, 14:20
Replies: 30
Views: 1,684
Posted By robinsonb5
It's just that in higher AGA fetch modes the...

It's just that in higher AGA fetch modes the modulo and alignment requirements are different, which can trip up OCS/ECS software that hits the hardware when run from Workbench, because that software...
Forum: support.Hardware 13 July 2020, 11:44
Replies: 50
Views: 2,267
Posted By robinsonb5
Index is generated by the drive, once per...

Index is generated by the drive, once per rotation, so if the drive's not spinning you wouldn't expect to see anything on this pin.
Edit: The amiga doesn't generally use that signal, either - it...
Forum: support.Hardware 12 July 2020, 11:13
Replies: 50
Views: 2,267
Posted By robinsonb5
This might help:...

This might help: http://amigadev.elowar.com/read/ADCD_2.1/Hardware_Manual_guide/node018E.html


But basically make sure you're seeing some activity on the SEL pin on the drive when you do the...
Forum: support.Hardware 12 July 2020, 00:15
Replies: 50
Views: 2,267
Posted By robinsonb5
Is the Sel signal reaching the drive?

Is the Sel signal reaching the drive?
Forum: support.Hardware 08 July 2020, 21:52
Replies: 50
Views: 2,267
Posted By robinsonb5
Since you have diagrom, try the drivetests menu...

Since you have diagrom, try the drivetests menu there - see if you can get any signs of life out of the drive.

Using your logic probe, see if you get anything on CIA-B pins 10 and/or 11 when you...
Forum: support.WinUAE 08 July 2020, 14:51
Replies: 13
Views: 1,395
Posted By robinsonb5
Find yourself a PC with sub-2GHz CPU - or for...

Find yourself a PC with sub-2GHz CPU - or for that matter a mid-range ARM-based tablet - log into Facebook (the website, not the app - that's cheating!) and count how many seconds it takes between...
Forum: Hardware mods 06 July 2020, 20:55
Replies: 339
Views: 44,601
Posted By robinsonb5
As I understand it, fx68k is designed to be...

As I understand it, fx68k is designed to be cycle-accurate, for use in retro systems where the time taken to execute a piece of code must match the original machine. Beam-racing demos on the ST are...
Forum: Hardware mods 06 July 2020, 14:02
Replies: 339
Views: 44,601
Posted By robinsonb5
Very impressive - nice going!

Very impressive - nice going!
Forum: support.Hardware 05 July 2020, 20:10
Replies: 54
Views: 3,079
Posted By robinsonb5
I think the reason for that is to avoid the much...

I think the reason for that is to avoid the much more expensive regulatory approval that would be required if the new PSU were directly mains AC powered. This would be prohibitively expensive in a...
Forum: Retrogaming General Discussion 04 July 2020, 12:47
Replies: 24
Views: 2,348
Posted By robinsonb5
Really nice work! Be careful with...

Really nice work!



Be careful with caching chip ram - various processes inside the Amiga (Blitter, disk IO) can write to it in a way that's not visible on the CPU bus, so you can easily end up...
Showing results 1 to 40 of 806

 
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