Search found 542 matches

by garfield
Mon Feb 26, 2024 5:15 pm
Forum: 32-bit acorn emulators
Topic: Arculator v2.2 released!
Replies: 23
Views: 4226

Re: Arculator v2.2 released!

Arculator v2.2 is now available. Apropos of nothing... I noticed this bug while using the game CONQUEROR : The tank controls ( key H to move left tank track forward and key K to move right tank track forward ) do not work if using ARTHUR 1.20. Certain other keys do work, though, which suggests that...
by garfield
Fri Feb 16, 2024 1:50 pm
Forum: 32-bit acorn software: classic games
Topic: New: fully documented source code for Lander
Replies: 68
Views: 4230

Re: New: fully documented source code for Lander

Great attention to detail. Excellent to see assembly source for Archimedes games becoming available (whether decompiled, or new projects).
by garfield
Mon Jan 08, 2024 11:40 am
Forum: new projects in development: games
Topic: Ghostbusters (Activision)
Replies: 158
Views: 13712

Re: Ghostbusters (Activision)

This is quite impressive, especially given the RAM limitations.
by garfield
Tue Dec 19, 2023 10:38 am
Forum: general
Topic: Interesting YouTube videos
Replies: 542
Views: 145518

Re: Interesting YouTube videos

Tech investigation of the C64 version of the game Exile:

https://www.youtube.com/watch?v=Bh24hlZpgCQ
by garfield
Sun Dec 03, 2023 11:23 am
Forum: development tools
Topic: Tokenizing BASIC into memory with beebasm
Replies: 3
Views: 3824

Re: Tokenizing BASIC into memory with beebasm

Seems like a useful enhancement Tricky.
by garfield
Sat Nov 18, 2023 10:56 pm
Forum: 8-bit acorn emulators
Topic: pseudo scanlines
Replies: 16
Views: 1825

Re: pseudo scanlines

gfoot wrote: Sat Nov 18, 2023 10:53 pm Coincidentally this just popped up today: https://hackaday.com/2023/11/18/bringin ... -software/
Cool. Seems to be a nice CRT shader library, albeit NTSC focused.
by garfield
Fri Nov 17, 2023 1:59 pm
Forum: 8-bit acorn emulators
Topic: pseudo scanlines
Replies: 16
Views: 1825

Re: pseudo scanlines

I would have thought pulling in a hardware based shader effect from another source would be fairly simple, but I don't know SDL! Doesn't MAME support various effects and as it now supports the beeb except a few 6845 issues, it might be good to experiment with. Ultimately, Tricky, yes a proper shade...
by garfield
Thu Nov 16, 2023 10:49 pm
Forum: 8-bit acorn emulators
Topic: pseudo scanlines
Replies: 16
Views: 1825

Re: pseudo scanlines

B-Em currently has a scanlines mode, though it is not as advanced as you describe here. To try it: Settings->Video->Display Type->Scanlines Yeah - a controllable percentage would be nicer, since I think a "full" black scanline is overly harsh in appearance. But thanks for pointing me to t...
by garfield
Thu Nov 16, 2023 10:46 pm
Forum: 8-bit acorn emulators
Topic: pseudo scanlines
Replies: 16
Views: 1825

Re: pseudo scanlines

BeebMaster wrote: Thu Nov 16, 2023 10:43 pm Perhaps I don't understand the terminology, but why does the higher percentage dark scanline produce a lighter scanline?
Perfectly good question. It's arguably just as valid to invert the percentage. Swings and roundabouts!
by garfield
Thu Nov 16, 2023 8:24 pm
Forum: 8-bit acorn emulators
Topic: pseudo scanlines
Replies: 16
Views: 1825

pseudo scanlines

Anyone have a hankering to enhance a BBC Micro emulator with pseudo "scanline" effect? In lieu of a sophisticated "CRT filter emulation" graphical layer, one conceptually easy way is: A. Use a line-doubling approach. B. Apply a percentage bias with the "raster" displaye...
by garfield
Sun Sep 17, 2023 11:27 am
Forum: development tools
Topic: Dithertron picture converter
Replies: 4
Views: 905

Re: Dithertron picture converter

Quite slick.

( I personally do not like dithering, though. Much prefer solid colour areas, if possible. One's milage may vary! )
by garfield
Fri Sep 15, 2023 5:19 pm
Forum: 8-bit acorn emulators
Topic: b2 - new emulator
Replies: 274
Views: 69612

Re: b2 - new emulator

tom_seddon wrote: Thu Sep 14, 2023 6:14 pm I do intend to fix this at some point!

--Tom
That will be great if/when it gets implemented!
by garfield
Thu Jul 20, 2023 11:39 pm
Forum: 8-bit acorn emulators
Topic: Wish list for 8-bit (and 32-bit) emulation ?
Replies: 15
Views: 1787

Re: Wish list for 8-bit (and 32-bit) emulation ?

joachim wrote: Thu Jul 20, 2023 4:37 pm Why not "magic rewind frame"?
In addition to these? Actually, yes, you're right, that would make sense too!
rewind.png
by garfield
Thu Jul 20, 2023 11:31 pm
Forum: 8-bit acorn emulators
Topic: Wish list for 8-bit (and 32-bit) emulation ?
Replies: 15
Views: 1787

Re: Wish list for 8-bit (and 32-bit) emulation ?

BeebMaster wrote: Thu Jul 20, 2023 4:51 pm Yes, emulating known faults with hardware, as I first proposed here 364 days ago.
Interesting idea.
by garfield
Mon Jul 17, 2023 10:47 pm
Forum: 8-bit acorn emulators
Topic: Wish list for 8-bit (and 32-bit) emulation ?
Replies: 15
Views: 1787

Wish list for 8-bit (and 32-bit) emulation ?

Below is a "pseudo-amalgamation" of many common feaures of emulators. "Our" crop of Acorn 8-bit and 32-bit emulators cover some... but not all of these items. Is there any emulator capability that is on your personal wishlist ? :?: ( My wishes are CRT shaders and monitor barrel d...
by garfield
Tue Jul 11, 2023 6:30 pm
Forum: 32-bit acorn hardware
Topic: VIDC shrunken screen modes
Replies: 9
Views: 532

Re: VIDC shrunken screen modes

SarahWalker wrote: Tue Jul 11, 2023 5:09 pm Yes, screen size is fully configurable.
Thanks Sarah.
by garfield
Tue Jul 11, 2023 3:13 pm
Forum: 32-bit acorn hardware
Topic: VIDC shrunken screen modes
Replies: 9
Views: 532

VIDC shrunken screen modes

For the VIDC screen modes targeted to standrd monitor type, can these be customised (via registers) to reduce the memory footprint used? In other words, use fewer rasterlines (vert) or narrower lines (horiz) ? I know that the Beeb's CRTC can do this, but I'm not sure about the Archimedes's VIDC capa...
by garfield
Tue Jul 11, 2023 3:06 pm
Forum: 8-bit acorn emulators
Topic: b2 - new emulator
Replies: 274
Views: 69612

Re: b2 - new emulator

tom_seddon wrote: Tue Jul 11, 2023 1:51 pm There's another pre-release available, that fixes the wonky colours when copying to clipboard on Windows: https://github.com/tom-seddon/b2/releas ... prerelease

--Tom
Copy-to-clipboard fixed !
by garfield
Mon Jul 10, 2023 5:46 pm
Forum: 8-bit acorn emulators
Topic: b2 - new emulator
Replies: 274
Views: 69612

Re: b2 - new emulator

tom_seddon wrote: Mon Jul 10, 2023 5:37 pm Are the red and blue channels swapped, or does it look weirder than that?

--Tom
whoops.png
Pasted image (on the left) from B2 clipboard buffer copy (on the right).

Yeah it seems that the blue is now red... and looks like other mappings (yellow/cyan) might be off too...
by garfield
Mon Jul 10, 2023 4:17 pm
Forum: 8-bit acorn emulators
Topic: b2 - new emulator
Replies: 274
Views: 69612

Re: b2 - new emulator

https://github.com/tom-seddon/b2/releases/tag/b2-20230709-202623-906acc3-prerelease should fix the screenshot-when-paused issue, and I added separate options for screenshot filtering/aspect ratio. I also put in copy screenshot to clipboard, which I've wanted for a while. This will become the next r...
by garfield
Mon Jul 03, 2023 9:20 pm
Forum: new projects in development: games
Topic: RPG project
Replies: 104
Views: 23068

Re: RPG project

I like the graphics posted so far.
by garfield
Sun Jul 02, 2023 7:41 pm
Forum: 32-bit acorn emulators
Topic: Arculator v2.2 released!
Replies: 23
Views: 4226

Re: Arculator v2.2 released!

It's probably theoretically possible to write HostFS for RISC OS 2, but it'd be more difficult both to develop and to use. Good explanation, thanks to you. I guess if one was to programme code for Arthur / RISC OS 2 ... you would simply develop against RISC OS 3 (i.e. to benefit from th HOSTFS tran...
by garfield
Sat Jul 01, 2023 11:51 am
Forum: 32-bit acorn emulators
Topic: Arculator v2.2 released!
Replies: 23
Views: 4226

Re: Arculator v2.2 released!

SarahWalker wrote: Sat Jul 01, 2023 11:45 am No. RO3 only.
Right. Thanks for the clarification.
by garfield
Sat Jul 01, 2023 11:14 am
Forum: 32-bit acorn emulators
Topic: Arculator v2.2 released!
Replies: 23
Views: 4226

Re: Arculator v2.2 released!

Time for a stupid question:

Should HOSTFS work with Risc OS 2 ?
by garfield
Sat Jul 01, 2023 10:20 am
Forum: new projects and releases: demoscene
Topic: Chequered Past - Archimedes Demo
Replies: 19
Views: 2209

Re: Chequered Past - Archimedes Demo

Cool. Nice music in particular.
by garfield
Fri Jun 30, 2023 4:11 pm
Forum: 32-bit acorn software: other
Topic: Arcol [ raster painting program ]
Replies: 12
Views: 1960

Re: Arcol [ raster painting program ]

SteveF wrote: Fri Jun 30, 2023 3:41 pm No problem! I've given this a quick test in Arculator and it appears to work. Seeing the "Chocolate" image was a real nostalgia blast, I probably hadn't seen that in 20 years...
Works perfectly. Ahhhhh the memories! Thanks Steve. =D>
by garfield
Fri Jun 30, 2023 3:28 pm
Forum: 32-bit acorn software: other
Topic: Arcol [ raster painting program ]
Replies: 12
Views: 1960

Re: Arcol [ raster painting program ]

SteveF wrote: Fri Jun 30, 2023 3:16 pm Is this just a reminiscence thread, or are people actually looking for a copy of Arcol? I have a disc which claims to be it that I could upload if it's of interest.
If you could upload an ADF of Arcol, it would be appreciated!
by garfield
Fri Jun 30, 2023 9:55 am
Forum: 8-bit acorn emulators
Topic: b2 - new emulator
Replies: 274
Views: 69612

Re: b2 - new emulator

tom_seddon wrote: Thu Jun 29, 2023 11:43 pm I'll get this fixed somehow.
Cool !
by garfield
Thu Jun 29, 2023 8:26 pm
Forum: 32-bit acorn software: other
Topic: Arcol [ raster painting program ]
Replies: 12
Views: 1960

Re: Arcol [ raster painting program ]

paulb wrote: Thu Jun 29, 2023 6:08 pm I think quite a few people were fond of Arcol.
Yeah, it was a 'sweet spot' between the rudimentary !Paint and more sophisticated packages like Revelation.
by garfield
Thu Jun 29, 2023 5:06 pm
Forum: 32-bit acorn software: other
Topic: Arcol [ raster painting program ]
Replies: 12
Views: 1960

Re: Arcol [ raster painting program ]

paulb wrote: Thu Jun 29, 2023 12:22 pm Was it ever released in some form on a cover disk?
Good question. I don't recall. I've never seen a copy listed on eBay either...

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