8-bit acorn software: other • Re: Value of Y register after *-command
Just to finish off what I was saying earlier, here's the sample program from the MDFS manual p. 10-13:SJMDFS1013.pngStatistics: Posted by BeebMaster — Sat Sep 07, 2024 7:31 pm
View Article8-bit acorn hardware • Re: RGB to HDMI using a Pi Zero and a small CPLD
The issue is that when I plug my amstrad cpc in to my (fairly new) 1080p Dell widescreen monitor it just displays a white screen and says 'no sync detected' at the top of the screen. Interestingly...
View Article8-bit acorn hardware • Cumana dual drive possible issue.
Hi,I have a dual cumana disk drive containing a pair of SA455 drives. They are able to read / write to , and format discs without issue in both 40 and 80 track mode. There's something odd about the...
View Article8-bit acorn hardware • Re: Cumana dual drive possible issue.
It's not normal. The drive shouldn't spin until a disc is inserted and the door closed, and then only until the index hole in the disc is located and then the drive stops spinning, until the computer...
View Articleintroduce yourself • Re: Hi Everyone! (From Derby)
Welcome and good luck with the batteriesStatistics: Posted by tricky — Sat Sep 07, 2024 10:16 pm
View Article32-bit acorn hardware • Re: Dead Risc PC VRAM module?
There are people here far more experienced than I, but to reinforce a point made already, my 2MB was the same as yours, I removed Bank 2, it still reported 1MB. I then replaced the chips on that side...
View Article32-bit acorn hardware • Re: RISC PC - no floppy icon, motherboard IDE dead
Hey @philpem did you ever figure out how to fix this? I have a 1208000 motherboard doing the exact same thing. it was working, then i lost the floppy icon, cannot read from the CD mine started after...
View Articleprogramming • Re: What memory below &E02 Can I use for sprites/code?
Do I have to actively prevent BASIC from using &400 to &7FF prior to loading into that range, or is it just available if I only run assembled code?BASIC (or another language ROM) will...
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8-bit acorn software: classic games • Re: Mega Games Cartridge for the...
I started to document UEF2ROM in case Dave or anyone else needs to use it. The manual is very much a work in progress at this point. I discovered this utility the other day via the repo, I hadn't even...
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8-bit acorn software: classic games • Re: Thrust Disassembly
A long time ago I was trying to work out how the Thrust physics worked. I was fascinated by how the orb and the ship would spin around each other, with correct-looking inertia. So I created this...
View Articlesoftware & utilities for the pc, mac or unix • Re: Teletext to Viewdata...
I have made it available here --> http://www.matrixnetwork.co.uk/temp/ttxtserver.tcl - but I warn you that it isn't pretty, I didn't plan to darken the rest of the world with it. It requires tclsh...
View Articleprogramming • Re: If wait VSYNC called in tight loop, does it always wait?
Here's the OS 1.20 code for *FX19 in TobyLobster's disassembly:Code: .osbyte19EntryPoint LDA .verticalSyncCounter ; Read vertical sync counter- CLI ; allow interrupts briefly SEI ; disable interrupts...
View Articledevelopment tools • Re: BeebAsm
Is there another way to do what I'm trying to do without using CLEAR?This assembles a string once at &100 to get the length, CLEARs the guards and assembles it again at the target. It is kind of...
View Article8-bit acorn software: other • Re: BCPL for the BBC Microcomputer on the Electron
That message from the BCPL runtime system does indeed mean it has run out of memory. When that happens you may be able to remove store files or the like but I suspect, in this case, that will only be...
View Articleprogramming • Re: VDU commands on BBC micro
(This thread might be better in "Programming".)This has answered something I must have mused about on and off for years and years and years! Can you switch in any memory area to display as the screen...
View Article32-bit acorn emulators • Re: Arculator v2.1 released!
arculator runs very well on my Intel-based Mac and Windows machines, thanks Sarah!I've been trying to get dbr's fork to compile on an ARM-based Mac running macOS 14.6.1 and it seems to not be able to...
View Article32-bit acorn software: classic games • Re: Help on The Dungeon or Acorn...
Hopefully it will be out before Christmas. I am prioritizing "Wizards & Warriors" at the moment which was the last game on my list to play before bumping The Dungeon back on the list. Even if I am...
View Article8-bit acorn software: games - high scores • Re: High Score Challenge - S23 -...
Another micro increment but it's an increment.....Python-16.pngStatistics: Posted by KarateEd — Tue Sep 10, 2024 10:08 pm
View Article8-bit acorn hardware • Re: BBC Master Compact DIY Serial ULA Upgrade
And see also this thread with it reimplemented (cassette interface and all) in programmable logic:viewtopic.php?p=327273#p327273There are definitely multiple ways to skin this cat...Statistics: Posted...
View Article32-bit acorn hardware • Re: Acorn A4 Laptop Repair
Wizzo might not help you if the CF card is incompatible with the internal IDE interface in the first place. They're quite hit and miss.I've had good luck with Transcend cards, the compatibility list I...
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