8-bit acorn software: classic games • Re: Ravenskull Crucifix Quirk
Thanks. I wonder what those scrambled-looking things are? I think they're probably parts of the player characters. There were unused player character sprites too, according to the decompilation...
View Articleother vintage hardware, software and languages • Re: Korg Wavestation...
I did the leg lifting method to check the EPROM's on mine.PXL_20250212_184102245.MP.jpgMine is a factory upgraded EX and doesn't have the capacitors on the extra EPROM's. I asked someone who sold the...
View Articlestardot FORUM • Re: Website crash and duplicate postings
Thanks for letting me know, I’ll look into this and get back to you.Statistics: Posted by baz4096 — Sat Apr 05, 2025 9:44 am
View Articleacorn atom and acorn system series • Re: Atom with missing C11
Hi guys,Work + other projects got in the way, and my poor Atom is still in the same state. I am planning to come by ABUG later today to say hi. I wonder if any of you guys might be able to take a look...
View Article8-bit acorn hardware • Re: SN76489: wonkiness on the analog side – how wonky...
Interesting results. The thing here is that you're doing something the chip wasn't really intended for... making a nice waveform using logarithmic attenuators intended to do volume control is going to...
View Article8-bit acorn hardware • Re: December 1980, the Proton, Chris Turner's notes
Its interesting that both processors are 6502s:If a 6502 was chosen for graphics side/backwards compatibility and a 6809 as app processor both could perhaps be (essentially*) 1Mhz, saving on memory...
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8-bit acorn hardware • Re: Question about modding RA0-3 and DRAM refresh
The DRAM used in a BBC Micro needs a 2ms refresh. The DRAM in later machines needs a 4ms refresh IIRC The HM4816 datasheet is here Given the data rate required for a video line (each line takes 64...
View Articlemodern implementations of classic programming languages • Matrix Brandy BASIC...
Amongst the fun and games of this weekend's ABUG meet in Camberley, I have released version 1.23.5 of Matrix Brandy.Changes include:- General: Implement code fixes based on GCC 14.2's -fanalyzer...
View Articleeconet in all its guises • Re: Pi Econet Bridge v2.1 released
Hi All, I’m posting this here in case it helps anyone who is attempting to install the PiEconet Bridge on a Raspberry Pi 4B. I was previously using a PiZero 2 but decided to switch to the 4B so I...
View Articleacorn & bbc micro user group (abug) events • ABUG Dev night #92, Thursday...
On Thursday there will be an ABUG Dev night at 7.30pm (BST) on zoom.Essentials:- host will be present 7.30-9.30 but if people want to stay late for a chat, you are welcome to do so- the main event...
View Articlestardot FORUM • Re: Website crash and duplicate postings
Around the end of last month I had similar problems on the sister forum of 6502.org (also Powered by phpBB® Forum Software).Statistics: Posted by Louis.m — Sun Apr 06, 2025 5:50 pm
View Article32-bit acorn hardware • My A3000 is dead
I've wanted an A3000 for a while and I've finally managed to get one.Its an early one with the cardboard box around the PSU and the motherboard has the identification 0280,0000 Iss A. Unfortunately...
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acorn & bbc micro user group (abug) events • SAVE THE DATE : ABUG South,...
Happy sunny Sunday everyone! I'm glad you all enjoyed the ABUG South meetup this weekend, it certainly was quite a packed and successful event, though I say so myself. I'm pleased to announce that...
View Articleacorn & bbc micro user group (abug) events • Re: SAVE THE DATE : ABUG...
I will see you there!This weekend ( April 4/6 ) was booked a very long time ago... could not move it.Thank you for organising.Statistics: Posted by Anobium — Sun Apr 06, 2025 6:14 pm
View Articleacorn & bbc micro user group (abug) events • Re: SAVE THE DATE :: ABUG...
Any photos ? or videos?Statistics: Posted by Anobium — Sun Apr 06, 2025 6:15 pm
View Article32-bit acorn hardware • Re: My A3000 is dead
The A3000 schemaics that are available are marked 0180,0000 so I assume its not one of the very first.There's precious little differences, and they're all listed in the TRM.I've removed the battery...
View Articleprogramming • Re: Direct access to SN76489: timing
Mine is also happening after DDRA is set. I only included the write to DDRA in the example to show it can be done after the write to PORTA and provide a complete example. On CPU cycle counts, yours...
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Introduce Yourself • Re: Hello World – New A5000 Owner from Germany...
Welcome, hope you enjoy this forum as much as I do. Statistics: Posted by Drobell — Mon Apr 07, 2025 11:45 am
View Articleacorn & bbc micro user group (abug) events • Re: [COMPLETED] BOOKING...
Many thanks Kieran for organising, I'm already looking forward to the next.Also to Paul, for the excellent monitor, and to Mark for assisting in helping diagnose my iffy PSU.Statistics: Posted by...
View Articleacorn atom and acorn system series • Re: Colour video on Atom.
How did you convert the video ?ErikStatistics: Posted by dreamerxb — Mon Apr 07, 2025 12:07 pm
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