Search found 922 matches

by kieranhj
Fri Aug 12, 2016 1:25 pm
Forum: introduce yourself
Topic: Hello from sunny Yorkshire and a help request
Replies: 25
Views: 3873

Re: Hello from sunny Yorkshire and a help request

Welcome to the forum, John! There are a couple of threads on Bresenham line drawing over on the Retro Software programming forums: http://www.retrosoftware.co.uk/forum/viewtopic.php?f=73&t=731&hilit=bresenham http://www.retrosoftware.co.uk/forum/viewtopic.php?f=73&t=344&hilit=bresenham Although neit...
by kieranhj
Fri Aug 12, 2016 11:55 am
Forum: past events & exhibitions
Topic: Teletext and Digitiser Festival - Centre for Computer History, Cambridge - Saturday 1st October 2016
Replies: 1
Views: 1234

Teletext and Digitiser Festival - Centre for Computer History, Cambridge - Saturday 1st October 2016

From the Teefax article I came across this: http://teletextart.co.uk/tickets-for-the-teletext-and-digitiser-festival-on-sale-now Teletext designers panel – Just how do you make a teletext page? Can I make my own? Well, wonder no more, for the teletext artists are here to explain all. Make Your Own T...
by kieranhj
Wed Aug 10, 2016 10:15 pm
Forum: stardot FORUM
Topic: How about a Programming / Hints and Tips subforum?
Replies: 30
Views: 7818

Re: How about a Programming / Hints and Tips subforum?

Earlier in the year (shortly after we appointed the new admin/moderator team) we began discussing incorporating the Retro Software forum into the StarDot forum. Perhaps we can start to press ahead with a plan to achieve this. Daniel? Simon? Roland? What do you think? I personally think this would b...
by kieranhj
Wed Aug 10, 2016 1:02 pm
Forum: general
Topic: Advanced Disk User Guide
Replies: 2
Views: 637

Re: Advanced Disk User Guide

As always, Jonathan comes to the rescue: http://mdfs.net/Docs/Comp/BBC/Disk/ :D
by kieranhj
Wed Aug 10, 2016 12:54 pm
Forum: stardot FORUM
Topic: How about a Programming / Hints and Tips subforum?
Replies: 30
Views: 7818

Re: How about a Programming / Hints and Tips subforum?

I'd like to raise this topic again (again) for discussion! The Retro Software forums are great and contain lots of historical discussions and useful bits of information on Beeb programming but they can hardly be called active. As far as I can tell, all of the (current) contributors on there are also...
by kieranhj
Wed Aug 10, 2016 12:45 pm
Forum: general
Topic: Advanced Disk User Guide
Replies: 2
Views: 637

Advanced Disk User Guide

Hey all, Does anyone know if there was an updated version of the Advanced Disk User Guide that included details of the 1770 FDC? The one I can find online is a scan of the original and it only covers the 8271 FDC and DFS up to version 1.20. Is this superseded by the New Advanced User Guide? There ar...
by kieranhj
Tue Aug 09, 2016 5:16 pm
Forum: past events & exhibitions
Topic: BeebDroid authors / London / Mon 15th August 2016
Replies: 8
Views: 1718

Re: BeebDroid authors / London / Mon 15th August 2016

I should be able to make it after work on Monday. Sounds like fun!
by kieranhj
Mon Aug 08, 2016 3:44 pm
Forum: general
Topic: The Computer Programme on BBC iPlayer
Replies: 14
Views: 2571

Re: The Computer Programme on BBC iPlayer

On a side note, they're also closing this "I only use iPlayer not a TV aerial" loophole from 1st September: https://www.theguardian.com/media/2016/ ... r-loophole
by kieranhj
Sat Aug 06, 2016 9:44 am
Forum: general
Topic: The Computer Programme on BBC iPlayer
Replies: 14
Views: 2571

The Computer Programme on BBC iPlayer

http://www.bbc.co.uk/iplayer/episode/p03064m1/the-computer-programme-1-its-happening-now From January 1982 trying to explain what computers are to the layperson. Includes some cracking quotes ("50 MIPS" as one of the most powerful computers on earth :)) and a journalist amazed as a game (The Wall) ...
by kieranhj
Sat Jul 16, 2016 11:53 pm
Forum: new projects in development: games
Topic: Current work on White Light...
Replies: 13
Views: 2400

Re: Current work on White Light...

That looks amazing, really great work! Can't wait to play on a real machine. :)
by kieranhj
Sun Jul 03, 2016 11:18 pm
Forum: 8-bit acorn software: other
Topic: Please help a bbc micro newbie
Replies: 6
Views: 1422

Re: Please help a bbc micro newbie

Sorry, only have time for a quick reply but... Check the Advanced Disk User Guide for DFS memory usage. If you don't have any open files then you can safely lower PAGE to &1100. If you're in machine code not BASIC then there are a lots of parts of memory you can steal below PAGE, the obvious one bei...
by kieranhj
Sat Jul 02, 2016 12:14 pm
Forum: introduce yourself
Topic: Hi fellow Acorns...
Replies: 21
Views: 2808

Re: Hi fellow Acorns...

Welcome John, great to see another game dev with an Acorn background!
by kieranhj
Sat Jun 25, 2016 1:41 pm
Forum: past physical ABug events
Topic: ABug South - at Centre for Computing History, Cambridge August 26-28 2016
Replies: 258
Views: 43155

Re: ABug South - at Centre for Computing History, Cambridge August 26-28 2016

I'm going to be staying over on Saturday night now (booked a room at the Travelodge for an extortionate rate but anyway) and would def be up for Turkish.
by kieranhj
Fri Jun 24, 2016 7:00 pm
Forum: 8-bit acorn software: classic games
Topic: Galaforce Disassembly
Replies: 4
Views: 1699

Re: Galaforce Disassembly

Any thoughts / conclusions / points of interest from your disassembly? Is there anything that surprised you or a nice neat piece of code that we should look at?
by kieranhj
Sun Jun 19, 2016 10:44 pm
Forum: 8-bit acorn software: classic games
Topic: Galaforce Disassembly
Replies: 4
Views: 1699

Re: Galaforce Disassembly

Very cool! Thanks for sharing. Are you thinking of posting any of your other disassemblies or starting any new ones?
by kieranhj
Sun Jun 19, 2016 10:20 pm
Forum: off-topic
Topic: How many game (or ex-game) developers on here?
Replies: 6
Views: 1173

Re: How many game (or ex-game) developers on here?

Nice! Some great games in that bio. I know Matt Godbolt & Rich Talbot-Watkins are games peeps too. I was at Rare for many years then ended up at various roles in Xbox after Microsoft bought the company. Currently developing apps for Windows, not games but utilising game type technologies.. http://ww...
by kieranhj
Sat Jun 18, 2016 12:16 am
Forum: off-topic
Topic: How many game (or ex-game) developers on here?
Replies: 6
Views: 1173

How many game (or ex-game) developers on here?

Noticing a trend with a few people I've bumped into on these forums - how many of us started our programming journey on Acorn machines and then ended up in the games industry in one capacity or another? I guess the timing makes sense, if you were growing up in the 80's learning to code then a BBC pr...
by kieranhj
Sun Jun 12, 2016 9:34 pm
Forum: past physical ABug events
Topic: ABug South - at Centre for Computing History, Cambridge August 26-28 2016
Replies: 258
Views: 43155

Re: ABug South - at Centre for Computing History, Cambridge August 26-28 2016

I have no avatar on file for hoglet, kieranhj and mattyj - would you like to add one to your profiles, or shall I pick them at random from the default library below? ;) Don't even think about it, I ain't no bronie! I am long overdue an avatar since I actually frequent this forum every day. I'll fin...
by kieranhj
Fri Jun 03, 2016 11:47 pm
Forum: 8-bit acorn software: classic games
Topic: Fortress Scrolling
Replies: 13
Views: 4518

Re: Fortress Scrolling

Where have you been hiding for the last five years?! :)

Being ex-Rare I'd be most curious about Knightlore & Jetpac. My old colleagues shipped Rare Replay last year, admittedly none of the Beeb versions!
by kieranhj
Fri Jun 03, 2016 8:55 pm
Forum: introduce yourself
Topic: Hello from London!
Replies: 14
Views: 2231

Re: Hello from London!

Welcome to the forum Dunk, Dunki?! :) Nice to hear your story, sounds like you definitely need to obtain some real hardware to restore and play with!
by kieranhj
Fri Jun 03, 2016 8:49 pm
Forum: 8-bit acorn software: classic games
Topic: Fortress Scrolling
Replies: 13
Views: 4518

Re:

From what I remember instead of nomally having character rows of 8 scan lines per character, Fortress simply reprograms the CRTC to have 4 scanlines per character row. To get the diagonal effect, it then simply hardware scrolls down 1 "character" and left 1 "character". I always wondered what would...
by kieranhj
Fri Jun 03, 2016 8:31 pm
Forum: 8-bit acorn software: classic games
Topic: Thrust Disassembly
Replies: 54
Views: 10785

Re: Thrust Disassembly

I wish you'd told me before I started. :) Great minds think alike, and all that I guess. We can probably say Thrust is sufficiently documented in this thread now!!
by kieranhj
Thu Jun 02, 2016 10:42 am
Forum: 8-bit acorn software: other
Topic: Published Spaghetti Code
Replies: 8
Views: 1912

Re: Published Spaghetti Code

Oh I don't know. I've built up quite a large library of general, flexible and reusable code. And library code doesn't need to be readable, only the external surface needs to be readable. Wow, that is quite an epic & impressive collection of Basic libraries. You have been doing this for some time..!...
by kieranhj
Wed Jun 01, 2016 8:54 pm
Forum: 8-bit acorn software: other
Topic: Published Spaghetti Code
Replies: 8
Views: 1912

Re: Published Spaghetti Code

As awesome as BBC Basic was for the time, after many years of professional software development it all pretty much looks like spaghetti code to me! To be fair, given how little RAM and CPU there was in the machine it was quite hard to write things that were general, flexible and reusable. Or even re...
by kieranhj
Sun May 29, 2016 7:15 pm
Forum: introduce yourself
Topic: Greetings from North East England
Replies: 23
Views: 2825

Re: Greetings from North East England

Hello all, My name is Gary... ...and I am a Acornaholic. Cheers Gary Partis Sir, you are a legend. :) Loved your games growing up as a kid, Psycastria being a particular favourite. Usually super fast, often nails hard but always technically impressive and a lot of fun. Welcome to the forum. As Tric...
by kieranhj
Sun May 22, 2016 6:00 pm
Forum: 8-bit acorn hardware
Topic: Possessed Master.. help!
Replies: 4
Views: 889

Re: Possessed Master.. help!

Thanks Mark. I will go back and have a good look & check what I can. Not sure how to remove the 6502 copro but will investigate.
by kieranhj
Sun May 22, 2016 4:41 pm
Forum: new projects and releases: demoscene
Topic: Beeb MOD Player
Replies: 72
Views: 8034

Re: Beeb MOD Player

Thought I'd post my afternoon's progress: a simple MODE 7 based visualiser (of the top 6-its of the frequency across all channels.) There a few tunes that can be assembled in - some look better than others. Ignore the flicker for now, I set up a canvas of 76 x 75 "teletexels" that can be plotted / e...
by kieranhj
Sun May 22, 2016 12:50 am
Forum: new projects and releases: demoscene
Topic: Beeb MOD Player
Replies: 72
Views: 8034

Re: Beeb MOD Player

Attached is an example ice.vgm. It comes out at 19846 bytes Exo compressed in our raw format, but 12847 bytes after Julian's envelope compression. There are two ssd's comparing the playback - not strictly fair because the vgmproc one hasn't been through the BBC retuning process. Update: passing ice...
by kieranhj
Sun May 22, 2016 12:37 am
Forum: new projects and releases: demoscene
Topic: Beeb MOD Player
Replies: 72
Views: 8034

Re: Beeb MOD Player

It's all in OCAML so completely over my head. Good luck. :)

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