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Forum: Coders. Asm / Hardware Today, 21:52
Replies: 6
Views: 257
Posted By Photon
OK, I was thinking of MOVEA. No diff there...

OK, I was thinking of MOVEA. No diff there either? And flags unaffected?

Also, ADDA/ADD ea,An (and same for move) doesn't sign-extend according to Motorola.

(I'm only following through and...
Forum: support.Hardware Today, 21:36
Replies: 20
Views: 880
Posted By Photon
If picture 3 (with the SIMMs removed) shows...

If picture 3 (with the SIMMs removed) shows plastic hooks with a flat surface towards the bottom of the socket, the plastic must be bent back and the holes in the SIMMs are there for a reason.
...
Forum: Retrogaming General Discussion Today, 21:24
Replies: 43
Views: 1,523
Posted By Photon
Nice thread Foebane! There are absolute tons. :)...

Nice thread Foebane! There are absolute tons. :) Probably there were as many different game types on Amiga as there are at any one time released now. If you limit it to arcade/action though, you will...
Forum: Amiga scene Today, 21:12
Replies: 912
Views: 167,668
Posted By Photon
This is a long thread for what is an extremely...

This is a long thread for what is an extremely simple and dumb game (Doom).

The first attempts at textured 3D or semi 2D were indeed slow on PC. Those who forget played it years after release....
Forum: Coders. Asm / Hardware Today, 19:54
Replies: 6
Views: 257
Posted By Photon
SUB and CMP should use the exact same logic, cmp...

SUB and CMP should use the exact same logic, cmp is sub without store. From memory there is no time gain (or loss of time loss :D) for An as there is for Dn (on 68000) because of the extra operations...
Forum: Coders. Asm / Hardware Today, 14:02
Replies: 205
Views: 179,026
Posted By Photon
Yep, and languages can keep count during string...

Yep, and languages can keep count during string operations - this avoids running this counting loop even once :) (strlen simply loads the count attached to the string and returns.)

It would be...
Forum: Coders. Asm / Hardware Today, 12:47
Replies: 205
Views: 179,026
Posted By Photon
An optimization of mine was brought to my...

An optimization of mine was brought to my attention yesterday :) It's nothing advanced but maybe it fits. It goes under basic ALU operations really, which we could make a list of.

not = neg;sub #1...
Forum: Coders. General Today, 12:39
Replies: 106
Views: 29,298
Posted By Photon
Maybe a few small ones, but if so the list of...

Maybe a few small ones, but if so the list of features in the download should still be complete.

I have a "PC mode" toggle switch that I've tested but it probably needs to be tested more. Some of...
Forum: Retrogaming General Discussion 03 May 2021, 14:01
Replies: 31
Views: 3,311
Posted By Photon
Bitmap Bros wrote the same game for both ST and...

Bitmap Bros wrote the same game for both ST and Amiga, and adapted to screenmode and bobs/softsprites near release.

Braben developed for ST, Amiga, and Archimedes, and perhaps he also ported to...
Forum: support.FS-UAE 21 April 2021, 21:02
Replies: 31
Views: 4,898
Posted By Photon
will give everyone scanlines on an LCD, finally....

will give everyone scanlines on an LCD, finally. This is how a CRT works and looks. You attach images with closeups. This is simply not what we see on a CRT. We don't view it at that distance. This...
Forum: Coders. Blitz Basic 21 April 2021, 20:26
Replies: 47
Views: 5,715
Posted By Photon
I've expressed myself clearly. I've asked but not...

I've expressed myself clearly. I've asked but not yet received answer if Blitz Basic parses files well. If it doesn't, why use the wrong tool?

And you've done something like it but won't share...
Forum: Retrogaming General Discussion 21 April 2021, 20:19
Replies: 281
Views: 40,495
Posted By Photon
It's all about the stick travel. I wish more...

It's all about the stick travel. I wish more joystick manufacturers realized this; all you need is 4 microswitches and a correctly placed shaft. Instead of fixing that we try different things with...
Forum: support.Apps 21 April 2021, 20:12
Replies: 81
Views: 17,313
Posted By Photon
If OS and driver software versions are set up...

If OS and driver software versions are set up correctly, LoadWB from Boot to CLI should run any software compatible with that OS version.

So you could try boot to CLI > LoadWB > run software. If...
Forum: Coders. General 21 April 2021, 19:40
Replies: 4
Views: 1,280
Posted By Photon
In rendering, a Profiling method is gold for...

In rendering, a Profiling method is gold for optimizing Fillrate. Some portions can get close to memory bus bandwidth (staring into a wall), per-pixel operations scale quadratically with resolution...
Forum: Coders. Blitz Basic 02 April 2021, 22:22
Replies: 47
Views: 5,715
Posted By Photon
Maybe my clear explanation is intimidating? ...

Maybe my clear explanation is intimidating?

Cutting some slack is also informing someone when something is hard to achieve, and suggesting an alternate solution.

Akira do you recommend Blitz...
Forum: support.FS-UAE 18 March 2021, 00:09
Replies: 31
Views: 4,898
Posted By Photon
The only lines I see are vertical, i.e. not what...

The only lines I see are vertical, i.e. not what ppl usually mean by scanlines.

There's also some blur and TV mask going on.

Scanlines are actually the pixels, not the space between them. This...
Forum: support.Games 18 March 2021, 00:01
Replies: 61
Views: 5,916
Posted By Photon
Old thread, OP didn't respond, every single disk...

Old thread, OP didn't respond, every single disk image probably reads just fine, no disk protection. Game works on A1000 for sure.

Trying to read a lot of replies in no time, not succeeding :D
...
Forum: Coders. Blitz Basic 17 March 2021, 23:27
Replies: 47
Views: 5,715
Posted By Photon
As I wrote it should support loading binary...

As I wrote it should support loading binary files...

... but it's also required that it does, to do what you want. Otherwise you simply can't.

Once you are able to read binary files, unless...
Forum: Amiga scene 17 March 2021, 23:00
Replies: 12
Views: 865
Posted By Photon
Up to maximum chipmem length samples (e.g. 2MB)...

Up to maximum chipmem length samples (e.g. 2MB) have always been supported by all Amiga models, the limitation from 128K to 64K was artificial in the PT .MOD format and five minutes' work to fix -...
Forum: Amiga scene 17 March 2021, 22:12
Replies: 34
Views: 3,133
Posted By Photon
Someone else said compression algorithm, I went...

Someone else said compression algorithm, I went along with it instead of just writing cruncher. :P My fault.
Forum: Retrogaming General Discussion 17 March 2021, 22:02
Replies: 63
Views: 13,431
Posted By Photon
I've replied, just inserting a note that the...

I've replied, just inserting a note that the fewer buttons you support, the less gameplay you have in your game - compare not supporting jumping at all. Then compare to opening doors, climbing...
Forum: Amiga scene 17 March 2021, 21:43
Replies: 542
Views: 48,385
Posted By Photon
I've left the thread alone a few weeks, because...

I've left the thread alone a few weeks, because the title claim is false.

The Amiga was widely popular. You can check this objectively for yourself without needing various arguments. Compare units...
Forum: support.WinUAE 17 March 2021, 20:49
Replies: 4
Views: 774
Posted By Photon
They are not on the list of blur free monitors...

They are not on the list of blur free monitors (very few are).


It may look horrible on most monitors, including the new ones with pay-for-acronym-that-does-nothing-for-blur. I got the perfect...
Forum: Retrogaming General Discussion 17 March 2021, 01:52
Replies: 58
Views: 4,718
Posted By Photon
I'm glad my 32" CRT RGB Scart TV is still working...

I'm glad my 32" CRT RGB Scart TV is still working perfectly. <3 5 years BC (Before Corona) I managed to carry it from the car, up a flight of stairs, and lift it onto the (sturdy) bench myself. I...
Forum: Coders. Asm / Hardware 04 March 2021, 01:42
Replies: 34
Views: 2,506
Posted By Photon
That's when you stopped responding, yes... ...

That's when you stopped responding, yes...

So you made a sketchy question putting WinUAE/Coppershade/HRM into question, now you come back and got all these responses. I can understand your...
Forum: Amiga scene 04 March 2021, 01:12
Replies: 542
Views: 48,385
Posted By Photon
Bunch of blurb. Point is what what you do...

Bunch of blurb.

Point is what what you do with a 1981 PC, 1984 Mac, 1985 Amiga.

And if the answer is "80x25 textmode is not enough" that answer is just plain wrong. None of the REAL competitors...
Forum: support.WinUAE 04 March 2021, 00:17
Replies: 4
Views: 774
Posted By Photon
WinUAE turns off Black Frame Insertion when VSync off

So I have secured two of these. (SA27950D).

They are most excellent :) They are the only flatscreen monitors in existence* to support zero blur (https://blurbusters.com/zero-motion-blur/samsung/)....
Forum: Coders. General 03 March 2021, 23:37
Replies: 15
Views: 1,346
Posted By Photon
Yes, Copperlists can swell but... on AGA you'll...

Yes, Copperlists can swell but... on AGA you'll have room??

If you really have tons of other chipmem assets, maybe require fastmem and generate them from there? :)

Why oh why didn't A1200 come...
Forum: Retrogaming General Discussion 03 March 2021, 23:25
Replies: 110
Views: 11,008
Posted By Photon
Arcade version has a specialized sprite chip,...

Arcade version has a specialized sprite chip, like many games that inspired the SNES chip. No fill.


Calculations are no problem, pixel bandwidth requires specialized chip or making up for one...
Forum: Coders. Asm / Hardware 03 March 2021, 23:07
Replies: 34
Views: 2,506
Posted By Photon
True. Extremely unlikely the case. Even...

True.


Extremely unlikely the case. Even on AGA/060 you would struggle to read a chipmem word before the pipeline clears. OP says Blitter corruption, so not bob collision detection.


The...
Forum: Amiga scene 03 March 2021, 22:06
Replies: 542
Views: 48,385
Posted By Photon
Frogs is putting the lack of text mode into his...

Frogs is putting the lack of text mode into his (or his Dad's) focus.

Maybe someone very business oriented with a small or large company would have that as focus, and also that a specific version...
Forum: Amiga scene 27 February 2021, 15:32
Replies: 542
Views: 48,385
Posted By Photon
Because they, like all future computers, were...

Because they, like all future computers, were breaking with the old. It took a decade for the PC to leave the old.

Even if the Amiga had text mode, you wouldn't pay $2000 extra to get the same.
...
Forum: Coders. Asm / Hardware 27 February 2021, 02:57
Replies: 34
Views: 2,506
Posted By Photon
Well, even shorter then: When in doubt,...

Well, even shorter then:


When in doubt, check your code.
Coppershade, HRM, and WinUAE are correct.
Providing code and expected result will give you quick answers here.


The order of...
Forum: Amiga scene 27 February 2021, 02:28
Replies: 542
Views: 48,385
Posted By Photon
80 columns != textmode. As I wrote, your dad was...

80 columns != textmode. As I wrote, your dad was stuck in the old. Perhaps more Americans were. GUI was clearly the future as we all can conclude now, some embraced it quickly, others were slow....
Forum: Coders. Asm / Hardware 27 February 2021, 02:05
Replies: 34
Views: 2,506
Posted By Photon
Well, it was a dumb reply from a not so detailed...

Well, it was a dumb reply from a not so detailed question. We really need code and expected result and actual result. Even then we might not call into question the docs available and code that works....
Forum: Coders. Asm / Hardware 26 February 2021, 23:33
Replies: 34
Views: 2,506
Posted By Photon
It's just very unlikely that you should blame...

It's just very unlikely that you should blame anything but your code.


You mean, apart from the HRM and running your code on real Amigas, and all the examples here and everywhere else. ;)

...
Forum: support.Other 26 February 2021, 22:31
Replies: 8
Views: 1,300
Posted By Photon
The curse of 'devices'. :'( If the device...

The curse of 'devices'. :'( If the device supporters are willing to help that's :great But how about 2-3 years from now?
Forum: Coders. General 26 February 2021, 22:30
Replies: 15
Views: 1,346
Posted By Photon
All that you could do has been considered. <3 ...

All that you could do has been considered. <3

As I wrote it's likely you will save memory writing sprite data with the CPU instead of the Copper.

You can still set sprite position with the...
Forum: Coders. Asm / Hardware 26 February 2021, 22:20
Replies: 34
Views: 2,506
Posted By Photon
The problem with the original question is that it...

The problem with the original question is that it doesn't post the code run when emulation error is experienced. OP must provide code that fails and environment and error message or screenshot of...
Forum: support.OtherUAE 26 February 2021, 22:10
Replies: 6
Views: 1,541
Posted By Photon
You bought a 'device'. We can't answer questions...

You bought a 'device'. We can't answer questions about device properties or how well it runs emulation without a full spec sheet.

Unfortunately, not all hardware manufacturers provide a full spec...
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