Search found 91 matches

by grobda
Mon Sep 18, 2017 2:45 pm
Forum: hardware
Topic: Open source firmware for Gotek floppy emulator released
Replies: 2
Views: 177

Re: Open source firmware for Gotek floppy emulator released

Sorry not tried it on an arc yet, just a BBC B and Dragon 32, must have put this in 32-bit hardware section by accident (although with an arm 7 onboard it is technically a 32bit device ;p ). Is uses the HxC software for creating floppies so I'd guess it will work - If I can muster the will to dig ou...
by grobda
Thu Sep 14, 2017 10:42 pm
Forum: other vintage computer hardware, software and games
Topic: Eastern Blok computers
Replies: 7
Views: 357

Eastern Block computers

Interesting stuff , there have been a few popping up on ebay recently. Was in Budapest a couple of years ago and saw a couple tucked away in a museum (with a nice dot matrix lenin); a rather severe looking 'ZH80' and possibly the most heavily annnotated computer in existence; http://www.ukvac.com/fo...
by grobda
Wed Sep 13, 2017 5:43 pm
Forum: off-topic
Topic: how is it called metal box for 3,5 or 5,25
Replies: 21
Views: 485

Re: how is it called metal box for 3,5 or 5,25

I've bought a Takachi MB-13 from RS, plenty of room for two 3.5" drives and a PSU (the plan is to fit a 3.5 floppy and a Gotek floppy emulator, with a switch to swap them between DF0 and DF1). The box seems light yet sturdy, made of folded aluminium - just wondering how to cut a neat square hol...
by grobda
Wed Sep 13, 2017 4:17 pm
Forum: hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 501
Views: 18482

Re: Palettemate / enhanced video ULA with 4096 colours

I seem to remember a hex editor for the atari st that displayed data as pixels (2 pixels per byte as it also had 4bpp palette) which you could edit and i think import/export... something between a hex editor and paint program. fuzzy memory mind you this was over 25 years ago. any such tools exist fo...
by grobda
Wed Sep 13, 2017 4:08 pm
Forum: hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 501
Views: 18482

Re: Palettemate / enhanced video ULA with 4096 colours

had a muck about with the joust (skirmish) palette, unfortunately the scores have a cross hatched background that means they get lost, and the pterodactyl looks rubbish, but the rest is looking quite close to the arcade. I tried editing out the cross-hatch (the screen graphics are in skirm2) using a...
by grobda
Tue Sep 12, 2017 9:00 pm
Forum: hardware
Topic: Desoldering components
Replies: 10
Views: 236

Re: Desoldering components

I use a duratool desolder station - zd-915, seems to be a slightly older model than the current one. It's a godsend for removing ICs, I fix the odd arcade PCB and this invariably involves removing IC's, preferably intact, as some aren't easily replaced. Definitely paid for itsself in time saved alon...
by grobda
Tue Sep 12, 2017 6:53 pm
Forum: hardware
Topic: Open source firmware for Gotek floppy emulator released
Replies: 2
Views: 177

Open source firmware for Gotek floppy emulator released

don't think this has been mentioned here, just tried it and works a treat;

https://github.com/keirf/FlashFloppy
by grobda
Tue Sep 12, 2017 6:49 pm
Forum: hardware
Topic: NuLA demos
Replies: 79
Views: 2751

Re: NuLA demos

awesome stuff!

took me a while to get it running, beeb b with retroclinic SRAM mod & 1770 DFS

for any other noobs with same setup ( I had to google around a bit on how to use SRAM);

*SRLOAD SOTBROM 8000 7

ctrl-break

CH."RUNME"
by grobda
Thu Sep 07, 2017 9:47 pm
Forum: emulators
Topic: Using a real HDD with Arculator
Replies: 4
Views: 158

Re: Using a real HDD with Arculator

I use a raspberry pi with riscOS installed to read and write to the first partition of an Arc HDD. I'm using a CF to IDE as the HDD on the Arc and CF USB reader for the Pi but it may also work with an IDE drive and a IDE to USB adaptor.
by grobda
Mon Sep 04, 2017 11:16 am
Forum: hardware
Topic: Retro Cassette recorders
Replies: 12
Views: 369

Re: Retro Cassette recorders

richmond62 wrote:Any advice / recommendations would be great.


use anything other than a tape recorder for data storage.
by grobda
Tue Aug 15, 2017 11:35 am
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 47
Views: 2589

Re: BeebSCSI mini

pretty sure the site has not been updated as ive been checking it every couple of days
by grobda
Wed Aug 09, 2017 10:27 am
Forum: off-topic
Topic: how is it called metal box for 3,5 or 5,25
Replies: 21
Views: 485

Re: how is it called metal box for 3,5 or 5,25

takachi mb series are basic aluminium boxes, RS stock them in UK

http://www.takachi-enclosure.com/data/c1213/c_en_p183-184.pdf
by grobda
Sun Aug 06, 2017 12:43 pm
Forum: programming
Topic: How do you save a screen
Replies: 448
Views: 12930

Re: How do you save a screen

just downloaded art4win - nice work! :) been mucking about with beeb graphics, drew this in beebspriter and paint; rtype.png Very inspiring, is it really only 160x256? good point, I double-checked and it isn't. not sure what happened there can only think i got muddled up with resolutions. so here's...
by grobda
Sun Jul 16, 2017 8:55 pm
Forum: programming
Topic: How do you save a screen
Replies: 448
Views: 12930

Re: How do you save a screen

just downloaded art4win - nice work! :) been mucking about with beeb graphics, drew this in beebspriter and paint; rtype.png still a bit rough and off-scale but i got carried away to get something mostly finished - an idea of what rtype in mode 2 might look like (impossible i know) :lol: art4win is ...
by grobda
Fri Jul 14, 2017 8:09 am
Forum: software: other
Topic: He-Man music demo
Replies: 12
Views: 571

Re: He-Man music demo

Ditto, this sounds great! Did you compose on the Beeb directly or on a PC tracker? Still wondering if there is interest / mileage in a simple BBC tracker music program that works with SN chip data directly. I'd like one, but not saying i'd do anything productive with it ;) spent last night mucking ...
by grobda
Thu Jul 13, 2017 4:48 pm
Forum: software: other
Topic: He-Man music demo
Replies: 12
Views: 571

Re: He-Man music demo

cool stuff, how do you go about composing music/fx on the beeb?
by grobda
Wed Jul 12, 2017 11:01 pm
Forum: software: classic games
Topic: what should i write next?
Replies: 150
Views: 8472

Re: what should i write next?

Bit late to this thread and skimmed it a bit. Mention of Asteroids made me think of the emulator for the atari 800 - http://members.aon.at/nkehrer/ast800xl.html - he's also done sprint for the 800 so you already have a conversion in common :D Found out about that when I was thinking of the possibili...
by grobda
Sun Jul 09, 2017 1:55 pm
Forum: hardware
Topic: BBC B sideways ZIF socket
Replies: 11
Views: 581

Re: BBC B sideways ZIF socket

Not much to see really, all you're doing is taking each pin from the socket and wiring it to a remote pcb with a zif socket. bit laborious but plodded through it while nursing a hangover and listening to TMS. Just need some stripboard, turned pin header strips, ribbon cable and a ZIF socket (think I...
by grobda
Sun Jul 09, 2017 11:20 am
Forum: hardware
Topic: BBC B sideways ZIF socket
Replies: 11
Views: 581

Re: BBC B sideways ZIF socket

Just built a zif socket plugin using some stripboard and a ribbon cable. seems to work fine with no resistors or capacitors, might add these if it turns out to be unstable. Combined with the diy rom/ram modification on retroclinic it gives me 4 rom images at the zif socket which are easy to program ...
by grobda
Sat Jul 01, 2017 5:15 pm
Forum: hardware
Topic: Loading a game from a cassette tape
Replies: 30
Views: 823

Re: Loading a game from a cassette tape

another possible fault with old tape decks is the drive belt going. t's a black neoprene band. these get slack or harden with age and can start slipping. replacements are still available.

although i still own a tape deck i'd be loath to use it. some things are best left in the past. :wink:
by grobda
Sat Jul 01, 2017 5:04 pm
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 47
Views: 2589

Re: BeebSCSI mini

interested if another batch is made, any idea if you could boot a Master 512 OS from one?
by grobda
Sat Jul 01, 2017 5:01 pm
Forum: software: classic games
Topic: felix in the factory (STH collection).
Replies: 1
Views: 207

felix in the factory (STH collection).

tested the STH collection disk with 'felix in the factory' on real machine and emulator, didnt work. found the file 'factory' was shorter than expected it so copied it over from the single game release. now works on emulated and real hardware.

tough game :D fixed image attached.
by grobda
Mon Dec 12, 2016 10:15 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 95
Views: 5649

Re: PiTubeDirect signalconverter for BBC Micro

Hi

I've PM'd you about an adaptor and PP'd a payment but the message seems to still be in my outbox, i presume this means unread.

cheers

Rick
by grobda
Sun Nov 27, 2016 9:48 pm
Forum: development tools
Topic: Native BBC/Master Sprite Editor
Replies: 2
Views: 398

Re: Native BBC/Master Sprite Editor

Many thanks! that worked =D>
by grobda
Sun Nov 27, 2016 5:55 pm
Forum: development tools
Topic: Native BBC/Master Sprite Editor
Replies: 2
Views: 398

Native BBC/Master Sprite Editor

Hi I'm trying to get into coding for the BBC and have written a BASIC game, but I'd like to design some sprites; I remember doing this on a BBC when I was a kid but cant find any software that works, or enough documentation for any ROM images I've come across. I've tried the beebug sprite editor ava...
by grobda
Mon Sep 21, 2015 2:37 pm
Forum: hardware
Topic: IDE/CF Adapter
Replies: 5
Views: 450

Re: IDE/CF Adapter

I bought an incredibly cheap one (2-3 quid) originally for the Amiga, which I later used for an A3000. no circuitry on the adapter other than an LED and a master/slave jumper which leads me to believe <at least some> CF cards are compatible with IDE standards. I'd also guess that whatever the price ...
by grobda
Mon Jun 22, 2015 4:55 pm
Forum: off-topic
Topic: 2015 Newbury Rally and Amiga A600 Issue
Replies: 3
Views: 580

Re: 2015 Newbury Rally and Amiga A600 Issue

the usual suspects in my experience are the two caps right behind the audio output jacks. beware they're surface mounted, hard to desolder and the pads have a tendency to lift (possibly due to the gunk the caps leak onto the pcb).
by grobda
Fri Jun 19, 2015 8:13 am
Forum: hardware
Topic: Eclipse powerpad
Replies: 5
Views: 570

Re: Eclipse powerpad

http://qubeserver.com/Qube/projects/arcsnespads.html

exactly what i was looking for, thanks! =D>
by grobda
Thu Jun 18, 2015 11:52 am
Forum: wanted
Topic: Wanted - IDE Interface for A3010
Replies: 34
Views: 2830

Re: Wanted - IDE Interface for A3010

Although that one won't work in an a3010. Apologies I wasn't aware it lacked the port as on an a3000 :oops: I see there's one on ebay now... £110 with an hour to go, someone's keen 8) It used to be equally hard to get HDD interfaces for Atari St's too, but now a few people are getting small batches...
by grobda
Thu Jun 18, 2015 11:40 am
Forum: hardware
Topic: Eclipse powerpad
Replies: 5
Views: 570

Re: Eclipse powerpad

found another thread that refers to these as snes-based.

anyone aware if the drivers are still copywrited? anyone know if the driver disk in online? or any other parallel port interfaces?

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