8-bit acorn software: other • Re: file won't run in ADFS (BeebFAX)
Hi Brian,Line 440 calls OSGBPB at &FFD1. A%, X%, and Y% have to be used since CALL uses them to set the values of the A, X and Y registers. In any case they are LOCAL so are preserved.Is the file...
View Articlecommunications • Re: the Night Owl BBS (HOST UP)
Tuesday 27thNight Owl is now up for a bit ...Sorry there was no service last night I was busy with some code issues.Not many recent visits so I figured it wouldn't be much of an issueApologies if you...
View Articleintroduce yourself • Re: Hello from Derbyshire!
Thanks everyone for the responses.My eBay BBC micro hasn't arrived yet, so I don't know what state it's in. I might have some more questions when it gets here.I'll take all your advice about...
View Article8-bit acorn software: other • Re: C development for FujiNet and cc65 bbc target
Thanks @dominicbeesley for the update. Some interesting ideas around the clib ROM for applications. Certainly something I hadn't thought of before for writing C apps.The fujinet device will require a...
View Article8-bit acorn emulators • What hardware is needed to run Trickysoft games like...
I'm running BBC games on a Raspberry Pi 4 with Retropie using a MESS fork (lr-mess-system-bbcb). Some Trickysoft games work fine (like Space Invaders and Centipede) work perfectly, but others (eg...
View Article32-bit acorn hardware • Re: Recreated A3000 board and ARM2 question
D16 is still the wrong way around, not good for the vidc.IC42 & IC45 should be 74HCT573 (as mentioned previously)IC28 should be 74HC139.IC35 should be 7406 (originally TTl family) - will possibly...
View Article8-bit acorn hardware • Model B issue 4 video fault
Hello,I have an issue 4 model B, it's connected to a TV via a scart / rgb lead. (I know this is ok because it works fine on another BBC B)When you turn it on, it powers up as expected. BUT the text on...
View Article8-bit acorn software: other • Re: Unusual 6502 programming techniques
BIT is a very under-appreciated instruction!It performs a logic AND between the accumulator and the contents of some address in memory (on the NMOS 6502 at least, it can only take a long or short...
View Article8-bit acorn hardware • Re: Model B issue 4 video fault
Is this just one mode or are all modes affected?MarkStatistics: Posted by 1024MAK — Wed Aug 28, 2024 6:40 pm
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acorn atom and acorn system series • Keycaps (again)
Hi,I know there are some similar posts but...I recently bought me an Atom (ser 4) , been busy so don't know if it is functional. No cables, adapter for monitor or PSU with it so need that first.I lack...
View Articlecommunications • Re: the Night Owl BBS *Host up*
Host is UP if anyone fancies calling in .Some new Sysop Blog up on future plansfor those interested.cheersStatistics: Posted by brianmartin_2001 — Wed Aug 28, 2024 7:54 pm
View Article8-bit acorn emulators • Re: What hardware is needed to run Trickysoft games...
Cheers both, will see if I can get the latest version to do the trick.Statistics: Posted by SuperFella — Wed Aug 28, 2024 8:46 pm
View Articleprogramming • Re: Will doing a mode change twice in a row be noticeable to a...
On a Master Compact connected to a real CRT monitor, repeatedly issuing the same MODE command with the same MODE number that the machine is already in does not appear to cause any difference (apart...
View Article32-bit acorn software: classic games • Re: Help on The Dungeon or Acorn...
I still have all my old copies of Archimedes World in my garage in a box - if you can tell me which issues to look through - I can see if there is a Dungeon solution. I can't say I remember one - they...
View Article8-bit acorn software: other • Re: file won't run in ADFS (BeebFAX)
Thanks Martin ,seems closer now but getting this error. The file is there in the same directory so I dunno how this is coming up. It the defaults back to the Host menu whereas before the prog crashed...
View Article8-bit acorn hardware • Re: RGB video converter
You can stop if careful with cutters. Teeth work well too, though not recommendedStatistics: Posted by vexorg — Thu Aug 29, 2024 8:45 pm
View Articleprogramming • Re: What memory below &E02 Can I use for sprites/code?
Thank you for the replies, I hadn't seen the AllMem.txt before so I am more informed than I was.From this it looks as though &A00 and &B00 are the safest targets? Do I have to do anything to...
View Article8-bit acorn hardware • Re: Model B issue 4 video fault
That is increasingly sounding like the circuit that generates the 6MHz clock is slightly unstable. This in turn is derived from the master 16MHz clock. I recommend you replace the 16MHz crystal with a...
View Articleintroduce yourself • Re: Hello from Derbyshire!
I do have new sealed 10-boxes of Athana branded 5.25" DSDD floppy discs available, but they weren't from that website, they were from a UK supplier who sourced them for me when I was actually after...
View Article8-bit acorn hardware • Re: Help with PRES AP3
I don’t think you need any soldering to fit an EPROM in the Plus 1, but it only supports an 8K 2764 (and gives you the top half, IIRC).There’s a 8K version of the support ROM without TreeCopy but...
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