8-bit acorn software: other • *CONFIGURE SHADOW
BeebWiki has a note about bit 0 of CMOS RAM byte 16, seemingly unused by the MOS: (https://beebwiki.mdfs.net/CMOS_configur ... allocation)Code: 16 b0 Default to shadow screen on start (MER) *Config....
View Article8-bit acorn software: other • Re: *CONFIGURE SHADOW
Having posted that: I suppose the BeebWiki page could be referring to the implied layout of the data accessed by osbyte $a1, rather than CMOS RAM specifically. After all, it does include Compact...
View Article8-bit acorn hardware • Re: Master battery spec
I put 3xAA Eneloops in my Master's with a 1N5817 Schottky diode and 220R resistor. They've been going for around eight years so far with no memory loss.Statistics: Posted by maniacminer — Mon Feb 10,...
View Article32-bit acorn software: other • Re: ADF to Real floppy
If it's just a plain disk image, and not a magentic flux recording, there's also ImgToDisk and FileToDisk:https://mdfs.net/Apps/DiskTools/Statistics: Posted by jgharston — Mon Feb 10, 2025 2:29 am
View Article8-bit acorn hardware • Re: Time & Config.
If you are running BASIC 4 on a second processor, these should all work with TIME$=, but I haven't been able to test this.The entry for OSWORD 15 in the 6502 client code allows up to a 32-byte control...
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8-bit acorn software: games - high scores • Re: High Score Challenge - S24 -...
Got up to Nasty Tree.Oh, yeah, I can do level 1 really well now! 41390.PNGStatistics: Posted by Rod C — Mon Feb 10, 2025 5:33 am
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stardot FORUM • Re: Is there any chance of a dark theme ?
Woah. This is VERY dark/flat. It'll take some getting used to, but thanks -- I've got such terrible eyesight now that I need to make everything possible light-on-dark, which I don't like aesthetically...
View Article8-bit acorn hardware • Re: Help from someone who has a laserdisc system
Beenmaster yours appears to be a whole line different do you have a *TV shift ?Statistics: Posted by dp11 — Mon Feb 10, 2025 11:55 pm
View Article8-bit acorn software: other • Re: List of bugs in Acorn MOS
Not sure this is a bug, but it's related to *CONFIGURE/*STATUS. I noticed yesterday that Station 201 (MOS 3.50) seemed to be in SHIFT-CAPS mode, which I never set, as I absolutely detest it, because...
View Articleacorn & bbc micro user group (abug) events • Re: ABUG NL 2025 (booking...
Whole weekend please. I'll only need half a table.Statistics: Posted by markdryan — Tue Feb 11, 2025 9:22 pm
View Articleacorn atom and acorn system series • Re: Atom and UM6502A
I'll need to dig it out, but I'm fairly sure my atom had/has a UM6502A and 2114s worked fine in it.Statistics: Posted by danielj — Tue Feb 11, 2025 9:33 pm
View Article32-bit acorn hardware • Re: RiscPC Sound problems
Unfortunatelly i have but don't trust it and i'm replacing it with a new one, that's for sure.Statistics: Posted by o0Nosferatu0o — Tue Feb 11, 2025 9:57 pm
View Articlenew projects and releases: demoscene • Re: Ray Caster Demo
With your references to Mode 8 I'm guessing this isn't Electron compatible?No - I say "Mode 2" and "Mode 8" but both are a custom screen size so this is not going to work on the Electron.Statistics:...
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stardot FORUM • Re: Forum Maintenance Scheduled: Friday 21st Feb, PM.
Thanks for the heads up, I hope the new prosilver dark theme survives Statistics: Posted by lovebug — Wed Feb 12, 2025 10:09 pm
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acorn atom and acorn system series • Re: Colour video on Atom.
What Roland said... Statistics: Posted by Multiwizard — Wed Feb 12, 2025 10:24 pm
View Article8-bit acorn hardware • Re: BBC Serial connector, replace with 9 pin din
Check out the Wikipedia article on RS-232: https://en.wikipedia.org/wiki/RS-232 and, in particular the section "RTS, CTS, and RTR"The use of RTS on the BBC Micro is RS232-E, where it is properly...
View Article8-bit acorn hardware • Re: sampling interrupts during phi1 instead of phi2
It feels to me that, in general, interrupts come asynchronously so if the CPU reacts one cycle late (or early) shouldn't break anything. Exceptions being perhaps cycle-counted demo or game code, of...
View Articlegeneral • Re: Acorn's 40th birthday / CPU Ltd
I can imagine that the group of people working together in some place found themselves magically working for (being paid by) a company called Acorn when the previous month they'd been paid by CPU. In...
View Article8-bit acorn emulators • Re: B-Em Config per game
I'm not sure if I uploaded the versions of the emulators that I had added mapping joystick directions to keys, but I think they have been added since but with different config files.I will revisit...
View Article32-bit acorn software: RISC iX • Re: Adventures in A680 RiscIx
Yes, I think that Acorn were aiming to follow Sun's technological path, as opposed to the path eventually taken by the industry, that being plain old X11, which Sun themselves took once they had seen...
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