Search found 29 matches

by deanb01
Sun Nov 01, 2020 3:41 pm
Forum: programming
Topic: 6502 assembly language routines
Replies: 8
Views: 354

Re: 6502 assembly language routines

0xC0DE wrote:
Sun Nov 01, 2020 2:00 pm
Thanks for contributing these to the community, Dean! =D>
No worries - as long as folk are happy to put up with my pidgin 6502! Glad the Acorn community is alive and well. Partly got you to blame for getting me hooked with my Electron by the way!! :D
by deanb01
Sun Nov 01, 2020 3:36 pm
Forum: programming
Topic: 6502 assembly language routines
Replies: 8
Views: 354

Re: 6502 assembly language routines

BigEd wrote:
Sun Nov 01, 2020 12:10 pm
Nice one - thanks for sharing, and using an open source license.
Thank you!
by deanb01
Sun Nov 01, 2020 3:35 pm
Forum: programming
Topic: 6502 assembly language routines
Replies: 8
Views: 354

Re: 6502 assembly language routines

Looks good. I would have to reverse the loops to remove the compares :oops: Have you read the threads on fast line drawing and the EOR filling routine? Thank you! I think for the line/circle routine I'd probably do what I did on the Spectrum version, calculate the screen address once, then as the p...
by deanb01
Sun Nov 01, 2020 10:52 am
Forum: programming
Topic: 6502 assembly language routines
Replies: 8
Views: 354

6502 assembly language routines

I've started porting my Z80 library routines (originally written for the ZX Spectrum) to 6502 for the Beeb/Electron. So far ported fast plot, line and circle (Mode 2), a simple sprite handler and a handful of other routines. The sprite routine in particular, is heavily influenced by one published by...
by deanb01
Wed Aug 19, 2020 1:06 pm
Forum: wanted
Topic: WANTED: 5.25" Floppy Drive Cables
Replies: 0
Views: 153

WANTED: 5.25" Floppy Drive Cables

Hi,

Does anyone have a set of cables for a BBC Micro/Master 128 to connect to a 5.25" Floppy Drive.
So ribbon cable -> FDD edge connector and BBC Aux -> FDD molex?
Or can point me in the general direction of where I can buy them online?

Cheers,
Dean
by deanb01
Sun Jul 05, 2020 11:28 pm
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

Dave Footitt wrote:
Sat Jun 27, 2020 12:45 pm
Welcome Dean, nice to have another BBC/Spectrum fan along.

Great website!
Cheers Dave - they're both great machines, with very different personalities!
by deanb01
Sun Jul 05, 2020 11:26 pm
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

Kevin Edwards wrote:
Fri Jun 26, 2020 8:56 pm
Welcome, Dean!

You must come round and help me sort out my old Beeb once this pandemic is over!
Sure, no problems Kev. I think I've got the knack of recapping Beeb PSUs now!
by deanb01
Sun Jun 21, 2020 6:38 pm
Forum: programming
Topic: Which 8 bit computers could run BBC BASIC?
Replies: 25
Views: 1664

Re: Which 8 bit computers could run BBC BASIC?

Hi Mark, Yep - aware of the optimisations that Nine Tiles / Steve Vickers took to cram it all into 16K - quite an achievement, notwithstanding. I've blogged about my board here. http://www.breakintoprogram.co.uk/category/projects/homebrew-z80 BBC Basic is still usable running at 3.5Khz (not Mhz). I'...
by deanb01
Sun Jun 21, 2020 5:25 pm
Forum: programming
Topic: Which 8 bit computers could run BBC BASIC?
Replies: 25
Views: 1664

Re: Which 8 bit computers could run BBC BASIC?

Currently running the Z80 version of BBC Basic on a breadboard computer I'm building. It's fairly straightforward - the source code for the BASIC is available online, and apparently open source under a zlib license. It needed a little bit of patching it to work with my hardware. Thankfully RT Russel...
by deanb01
Sat Jun 06, 2020 12:08 am
Forum: 8-bit acorn hardware
Topic: Beeb black plastic surround
Replies: 49
Views: 4464

Re: Beeb black plastic surround

I've just posted in Wanted for this - got an Issue 3 Model B that's clearly been well used. The black fascia is cracked and peeling. If these are available, or there are plans to make them, I'd be more than interested in one.
by deanb01
Fri Jun 05, 2020 2:11 pm
Forum: wanted
Topic: Beeb Black Facia
Replies: 4
Views: 596

Re: Beeb Black Facia

I'm also in need of one of these - got a very scruffy Model B that needs some TLC. Either the fascia only, or a complete lid.
by deanb01
Thu Feb 27, 2020 9:44 am
Forum: for sale / freebies
Topic: Wanted - Acorn Electron
Replies: 7
Views: 830

Re: Wanted - Acorn Electron

All sorted now, thanks to daveejhitchins for sorting one out for me.
by deanb01
Mon Feb 24, 2020 10:53 pm
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

roland wrote:
Mon Feb 24, 2020 8:56 pm
Hi Dean,

Welcome to this forum, enjoy your visits here.

Greetings from the South of the Netherlands,
Roland
Hi Roland, thank you, much appreciated!
by deanb01
Mon Feb 24, 2020 10:52 pm
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

tricky wrote:
Sun Feb 23, 2020 4:16 pm
I'm afraid it was written to assemble, not read and was quite a while ago :(
I like a challenge :D
by deanb01
Sat Feb 22, 2020 5:19 pm
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

The beeb has the same crtc as some of the cpcs but with finer horizontal control at the expense of a 32k address space. Hardware pixel vertical scrolling on the beeb is now well understood and fairly simple to implement, with or without a stationary status area. I started a vertical scroller framew...
by deanb01
Fri Feb 21, 2020 6:18 pm
Forum: off-topic
Topic: An improvement in my soldering skills
Replies: 10
Views: 1036

Re: An improvement in my soldering skills

I've had good results here: OptiVisor: https://www.amazon.com/gp/product/B0015IS6K2 (make sure you get the glass lenses, not plastic) LED addon: https://www.amazon.com/gp/product/B0058ECQ46 Loupe addon to get a really close up look at things: https://www.amazon.com/gp/product/B0015ILDZW The power s...
by deanb01
Fri Feb 21, 2020 6:11 pm
Forum: off-topic
Topic: An improvement in my soldering skills
Replies: 10
Views: 1036

Re: An improvement in my soldering skills

sweh wrote:
Thu Feb 20, 2020 11:25 pm
deanb01 wrote:
Thu Feb 20, 2020 9:37 pm
Would you recommend that model?
No, I wouldn't recommend it. I got one of the cheapest I could find and it definitely shows in construction (power switch is going bad). It's good enough "for me".
Thanks.
by deanb01
Thu Feb 20, 2020 9:48 pm
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

Hi and welcome to the forum, there's some really good stuff going on here. I find all the new hardware 'widgets' (hope I'm not insulting anyone) incredibly fascinating and the new software coming out is amazing! Cheers John. Yes, I'm in awe that there is so much new stuff available for most retro s...
by deanb01
Thu Feb 20, 2020 9:47 pm
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

Welcome, good reference :) What sort of things are you thinking of writing? Probably a game - I was a games programmer back in the day, mainly Z80 machines (Spectrum, Amstrad, Gameboy) These days I'm still programming, but as a technical consultant for a company that sells cloud-based business soft...
by deanb01
Thu Feb 20, 2020 9:37 pm
Forum: off-topic
Topic: An improvement in my soldering skills
Replies: 10
Views: 1036

Re: An improvement in my soldering skills

Been considering something like that for a while. A perfect storm of middle-aged eyesight problems and ever-shrinking circuits gives me no end of headaches. Would you recommend that model? Or do other folk have better magnifying goggles??
by deanb01
Tue Feb 18, 2020 8:54 am
Forum: for sale / freebies
Topic: Wanted - Acorn Electron
Replies: 7
Views: 830

Re: Wanted - Acorn Electron

daveejhitchins wrote:
Mon Feb 17, 2020 1:12 pm
Ah! Form your other post I see you're from Manchester (?).

I'll PM you regarding an Electron . . .

Dave H :D
Hi Dave, I emailed you last night - hope I translated the email address okay! And thanks again for your help :)
by deanb01
Tue Feb 18, 2020 8:51 am
Forum: introduce yourself
Topic: Hello.
Replies: 13
Views: 1179

Re: Hello.

Morning,

I've only just joined the forum myself; was a Speccy owner too back in the day, but always had respect for the Acorn machines - something that was not obviously built down to a cost.
by deanb01
Mon Feb 17, 2020 1:17 pm
Forum: for sale / freebies
Topic: Wanted - Acorn Electron
Replies: 7
Views: 830

Re: Wanted - Acorn Electron

daveejhitchins wrote:
Mon Feb 17, 2020 1:12 pm
Ah! Form your other post I see you're from Manchester (?).

I'll PM you regarding an Electron . . .

Dave H :D
Cheers Dave, much appreciated.
by deanb01
Mon Feb 17, 2020 1:15 pm
Forum: for sale / freebies
Topic: Wanted - Acorn Electron
Replies: 7
Views: 830

Re: Wanted - Acorn Electron

1024MAK wrote:
Mon Feb 17, 2020 12:50 pm
You may want to say where you are in the world...

Mark
Cheers Mark, I'll amend my settings now.
by deanb01
Mon Feb 17, 2020 1:14 pm
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

daveejhitchins wrote:
Mon Feb 17, 2020 1:05 pm
Welcome to the Forum, Dean . . . Enjoy . . .

Dave H :D
Thank you!
by deanb01
Mon Feb 17, 2020 1:13 pm
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

0xC0DE wrote:
Mon Feb 17, 2020 1:07 pm
Hey Dean, fancy meeting you here! :mrgreen:
Yes, a small world! :D
by deanb01
Mon Feb 17, 2020 11:30 am
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Re: Hello from Manchester

Thanks for the warm welcome!
I'm looking forward to having a poke around the forums in my lunch hour :D
by deanb01
Mon Feb 17, 2020 9:48 am
Forum: for sale / freebies
Topic: Wanted - Acorn Electron
Replies: 7
Views: 830

Wanted - Acorn Electron

Hi,

I'm on the lookout for an Acorn Electron - ideally in reasonable working condition, but will consider any condition within reason.

Could anyone help?
Ta,
Dean
by deanb01
Mon Feb 17, 2020 8:06 am
Forum: introduce yourself
Topic: Hello from Manchester
Replies: 22
Views: 1671

Hello from Manchester

Hi, My main computer at home was a Sinclair Spectrum, but would have had a BBC Model B if funds permitted. Used to hang out in the computer room at school (which had a couple) to program them, and play games when the teachers were not around. Worked in the games industry in Manchester during the 80s...

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