8-bit acorn software: other • BCPL for the BBC Microcomputer on the Electron
I hope I do not misuse this old thread, but would it be possible to run the BCPL System on an Electron (i.e. with ElkSD64 or something similar?)Statistics: Posted by ZX-Chris — Fri Sep 06, 2024 7:16 pm
View Article8-bit acorn emulators • Re: MAME: How to ... ?
Thanks Nigel, it works perfectly with a 1770 FDC. I look forward to hearing if there are any significant differences between the two 1.9 ROMs.Statistics: Posted by SteveF — Fri Sep 06, 2024 7:30 pm
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8-bit acorn software: other • Re: BCPL for the BBC Microcomputer on the Electron
I hope I do not misuse this old thread, but would it be possible to run the BCPL System on an Electron (i.e. with ElkSD64 or something similar?)Best in a new topic in this forum really No reason why...
View Articlecommunications • Re: the Night Owl BBS **Host is UP*
An early start but hey, why not ..Night Owl BBs is now UP for this Saturday evening .Had 5 different callers last night so on a roll ..Hope you will pay us a visit. New guest blogger paulbhas left his...
View Article8-bit acorn hardware • Re: Looking for BBC Repair in South Wales/Bristol area
Mutant Caterpillar Games?https://www.mutant-caterpillar.co.uk/mc_contact.htmStatistics: Posted by Lardo Boffin — Sat Sep 07, 2024 6:08 pm
View Article8-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 Article8-bit acorn hardware • BBC B issues
Hi Hope you all well. I have come across a few BBC’s I have now only 1 left to fix which is a continuous beep. I have scoped out the clock and all is good the reset goes high and low when I press the...
View Articleoff-topic • Re: Acorn Art Thread
The "block party edit server" is now live for Teletext 50. So everyone feel free to have a go and upload your best teletext scribblings to ChunkyText! https://blockparty.zxnet.co.uk/Statistics: Posted...
View Article8-bit acorn software: other • Re: BCPL for the BBC Microcomputer on the Electron
See this: viewtopic.php?t=11543In that case it was a bug in the 6502 emulation of the emulator B-Em, which I ended up maintaining. So, one thing to try would be to see if there are any other Electron...
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...
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 1208,000 motherboard doing the exact same thing.I tried replacing the Super I/O a second time but it ended up ripping up some PCB tracks....
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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 Articlenew projects and releases: text and graphic adventures • Re: Exploring...
Latest updates:Spent a couple of evenings integrating the DM compression into the interpreter and C# library.Then realised it has some limitations or incompatibilities with what I'm now doing.Spent 10...
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...
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