Search found 316 matches

by simonm
Sun Jul 30, 2017 11:55 pm
Forum: past physical ABug events
Topic: ABug Leicestershire Nov 2017 - Venue & Date confirmation
Replies: 53
Views: 9440

Re: ABUG EAST MIDLANDS (Winter Warmer) 17-19 November 2017 (Leicestershire)

Brilliant Alex, thanks for organising! +1 for the list.
by simonm
Tue Jul 25, 2017 11:33 pm
Forum: 32-bit acorn software: other
Topic: Early 8-Channel Music Uploaded (!Tracker Module)
Replies: 13
Views: 3044

Re: Early 8-Channel Music Uploaded (!Tracker Module)

That's ace! :) It sounds really familiar too, so I wonder if I must have enjoyed it bitd too.
Gets me all nostalgic, I had a ton of archie tracker files somewhere or other but can't seem to find em.
Thanks for sharing!
by simonm
Mon Jul 24, 2017 8:44 pm
Forum: 8-bit acorn emulators
Topic: Emulator support for VideoNuLA
Replies: 60
Views: 8964

Re: Emulator support for VideoNuLA

I've no idea how these emulators work really, but will your special hack work with emulated raster timings etc. so we can muck with the palette during frame render?
by simonm
Mon Jul 24, 2017 8:42 pm
Forum: 8-bit acorn emulators
Topic: Emulator support for VideoNuLA
Replies: 60
Views: 8964

Re: Emulator support for VideoNuLA

Nice work Kieran! To be fair, I'd be happy enough with that for a kick starter, so even though we're missing a few bits of colour res with that hack, at least we'll know if the code we're writing is gonna work ok on the target hardware. :D
by simonm
Thu Jul 20, 2017 5:40 pm
Forum: 32-bit acorn hardware
Topic: Which A3010 Monitor?
Replies: 19
Views: 2965

Re: Which A3010 Monitor?

Another upvote for the BenQ 912 from here. I run my A3010 on this and t's perfect for it. 19" is grand.
https://www.amazon.co.uk/BenQ-BL912-inc ... 00DZG2IWE/
You'll see the reviews are giving it a lot of love from the Acorn camp! :lol:
by simonm
Thu Jul 20, 2017 5:26 pm
Forum: 8-bit acorn emulators
Topic: Emulator support for VideoNuLA
Replies: 60
Views: 8964

Emulator support for VideoNuLA

Hello gang, Given RobC's fantastic work in bringing the enhanced ULA project to life, are there any bright sparks on here who might be able to update one of the various Beeb emulators to support/emulate this hardware mod? I'm chomping at the bit to make some cool stuff with it, but it'd be even awes...
by simonm
Thu Jul 20, 2017 5:21 pm
Forum: off-topic
Topic: Acorn Art Thread
Replies: 1663
Views: 137637

Re: Acorn Art Thread

these images are great! love 'em
by simonm
Fri Jun 30, 2017 12:02 pm
Forum: new projects in development: games
Topic: Happy Mrs Chicken!
Replies: 56
Views: 8266

Re: Happy Mrs Chicken!

Love it! Peppa looks great with the beebs gaudy palette!
Trivia time - the Peppa HMC app was one of my company's creations! I really enjoyed working on that! :)
by simonm
Thu Jun 29, 2017 9:40 am
Forum: 8-bit acorn hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 597
Views: 82232

Re: Palettemate / enhanced video ULA with 4096 colours

I'm deffo up for one too. Ohh the demos we could do... ;)
by simonm
Mon Apr 03, 2017 10:36 pm
Forum: general
Topic: New BeebWiki articles
Replies: 37
Views: 7490

Re: New BeebWiki articles

Great stuff! I often get my google queries directed here. Thanks for the useful info.
by simonm
Mon Apr 03, 2017 10:31 pm
Forum: 8-bit acorn software: other
Topic: why not disc area at &7c00 ?
Replies: 5
Views: 1225

Re: why not disc area at &7c00 ?

What would have been nice would be to move NMI and sound workspace to lower memory. Its certainly a pain having to work around Page 8 and 13 as "no go" areas.
by simonm
Sat Apr 01, 2017 1:51 am
Forum: 8-bit acorn emulators
Topic: how to get rom in beebem ?
Replies: 14
Views: 3486

Re: how to get rom in beebem ?

That would explain it! I wrote my own version of SRLOAD anyway, using disk sector reads and 256 byte page copies to the target SWR. MUCH faster! :)
by simonm
Fri Mar 31, 2017 11:52 pm
Forum: 8-bit acorn emulators
Topic: how to get rom in beebem ?
Replies: 14
Views: 3486

Re: how to get rom in beebem ?

Thread resurrection! Is it just me or is *SRLOAD extraordinarily slow? I just tried loading a 16Kb file to SWR slot 4 using SRLOAD on a BBC Master 128 MOS 3.20 (B-Em), it took 10.59 seconds Then just a standard *LOAD FILE 8000 took 1.99 seconds. Same SRLOAD on MOS 3.50 took 2.37 seconds. Is this due...
by simonm
Wed Mar 29, 2017 12:42 am
Forum: 8-bit acorn software: other
Topic: Shadow RAM double buffering questions
Replies: 8
Views: 1741

Re: Shadow RAM double buffering questions

There is a typo in the Memory section of the AUG that has opposing descriptions of how to use one of the bits (can't remember which one off the top of my head) which is extra unhelpful but this works. It's the D part of the register (bit 0) AUG says "D=0 Use Shadow RAM for screen, D=1 Use main memo...
by simonm
Sat Mar 11, 2017 6:45 pm
Forum: 8-bit acorn emulators
Topic: B-Em Debugging/Tracing
Replies: 64
Views: 7325

Re: B-Em Debugging/Tracing

I'm also interested in this topic. I wrote an extension for using BeebAsm in Visual Studio Code, but I saw that VSC also supports a remote debugger architecture too, so getting a BeebAsm/B-Em compiler/debugger workflow all integrated in VSC would be very cool. https://code.visualstudio.com/docs/exte...
by simonm
Sat Mar 11, 2017 11:37 am
Forum: programming
Topic: MODE 7 Vertical Rupture
Replies: 31
Views: 4987

Re: MODE 7 Vertical Rupture

=D> =D> Very cool!
by simonm
Sat Mar 11, 2017 11:16 am
Forum: general
Topic: Can I have my BBC in stereo?
Replies: 26
Views: 3016

Re: Can I have my BBC in stereo?

There were several arcade machines with more than one SN76489 and their VGMs are around the web. Good point! I forgot about that. I found a few of these when we were porting VGMs to Beeb, but my conversion script barfed because they contained data for 2x SN chips. It kinda makes sense to have two, ...
by simonm
Fri Mar 10, 2017 10:21 pm
Forum: general
Topic: Can I have my BBC in stereo?
Replies: 26
Views: 3016

Re: Can I have my BBC in stereo?

There's only one very basic PSG in the Beeb, which has no concept of stereo whatsoever. So at the very least, you'd need to macgyver an additional chip into the system somehow, which I would imagine is Quite Hard. Then you'd need some music that's authored for stereo (otherwise whats the point?) and...
by simonm
Wed Mar 01, 2017 11:03 am
Forum: 8-bit acorn software: other
Topic: Beeb 3D graphics shizzle
Replies: 3
Views: 861

Re: Beeb 3D graphics shizzle

Tricky - there's a fast mode 4 line renderer in the source for this too.
by simonm
Wed Mar 01, 2017 12:01 am
Forum: 8-bit acorn software: other
Topic: Beeb 3D graphics shizzle
Replies: 3
Views: 861

Beeb 3D graphics shizzle

Hi all, A while ago, we were sent a disk image containing some pretty awesome 3D graphics routines for the Beeb which I think are possibly the fastest 3d realtime renderings I've seen, so we posted it up on our website as part of our Beeb demo museum. Thought it might be of interest to you folks too...
by simonm
Sat Jan 21, 2017 12:13 pm
Forum: programming
Topic: Bitshifters - Ode to Mode 7 Competition
Replies: 43
Views: 7216

Re: Bitshifters - Ode to Mode 7 Competition

Hello again folks! Time flies, and the date we put on this little mode7 compo has come around quicker than we thought. In all honesty, with RL and all that even Kieran and I havent finished our demo for this yet (although its coming along nicely!) We're probably going to extend this for a bit longer...
by simonm
Fri Jan 20, 2017 12:54 pm
Forum: general
Topic: Article: "The Day Olivetti Stitched up Acorn Computers" (Curry interview)
Replies: 5
Views: 1137

Re: The Day Olivetti Stitched up Acorn Computers

they turned over £1.3 million in '81 and £8 million in '82 but made only a slim profit. That is HUGE growth in one financial year! Many businesses would struggle to adapt well to 800% growth in 12 months so in all honesty, what they achieved as a business over a relatively short number of years was...
by simonm
Fri Jan 20, 2017 12:33 pm
Forum: programming
Topic: MODE 7/75
Replies: 19
Views: 3258

Re: MODE 7/75

On a related note, Kieran and I have been working on a teletext demo lately (we're trying hard to finish it up!). One of the effects is taking advantage of the hold graphics feature to give a 38x25 7 colour character block canvas capability. It works well for certain full screen effects. Character c...
by simonm
Wed Jan 18, 2017 10:44 am
Forum: programming
Topic: Mode 2 Graphics
Replies: 12
Views: 2292

Re: Mode 2 Graphics

Yes, a table makes perfect sense for this. Maybe even two - one lookup table for converting a colour index to left hand pixel data and one for converting a colour index to the right hand pixel data. Store your pre-calculated interleaved pixel data in the tables, and index into them with your colour ...
by simonm
Tue Jan 17, 2017 12:54 am
Forum: general
Topic: Gold BBC Micro
Replies: 4
Views: 1384

Gold BBC Micro

A thread popped up recently with a link to a website containing scanned Micro User covers, which led me to March 1985's issue, with the competition to win a "Unique Gold Customised BBC Micro". Obviously I dreamed of winning that at the time, but I'd often wondered about its whereabouts and have now ...
by simonm
Tue Jan 17, 2017 12:47 am
Forum: programming
Topic: Kevin Edwards assembler series in Micro User
Replies: 15
Views: 4099

Re: Kevin Edwards assembler series in Micro User

Wow, seriously warm feels from those MU covers. Thanks for the link!
by simonm
Fri Jan 13, 2017 2:39 pm
Forum: 8-bit acorn hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 597
Views: 82232

Re: Palettemate / enhanced video ULA with 4096 colours

Would love to see the source code for your demo there Rob, this project really has my creative juices flowing and I'm already thinking of code I might like to write that takes advantage of it, so even seeing the prototype implementation would be useful reference.
by simonm
Fri Jan 13, 2017 2:37 pm
Forum: 8-bit acorn software: classic games
Topic: I know I've asked this before a thousands times BUT...
Replies: 30
Views: 5004

Re: I know I've asked this before a thousands times BUT...

I suspect everything I once knew about cracking 8-bit games has long been brain archived. And I cracked a fair few back in the day.
by simonm
Sat Jan 07, 2017 12:59 pm
Forum: past physical ABug events
Topic: ABug EAST MIDLANDS 27-29 January 2017 (Leicestershire)
Replies: 130
Views: 22542

Re: ABug EAST MIDLANDS 27-29 January 2017 (Leicestershire)

Really looking forward to meeting you all. I'm driving over by car (I only live 20mins away) so can bring along spare TVs computers etc. if that's of interest. I also have a poorly dual disk drive - it used to work, but it stopped powering up, but would love to get it going again so I can backup som...

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