32-bit acorn hardware • Re: Another bad A5000 - no post
Had another look at this machine over the weekend and made some progress. Previously, I thought I'd killed its ARM3 as it had stopped doing the address walk under reset. After fishing it out again...
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programming • Re: Weekend coding challenge: filled circles
While staring at code while waiting for archives to zip up, I noticed some redundant code in my circle routine, and a bug when drawing outline circles in XOR mode. Updated code here: Code: 10 REM >...
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8-bit acorn emulators • Re: Latest version of BeebEm
Hi, Does anyone know why the MODE 7 emulation is not correct in "Shapes Game"? It works fine on a real beeb, JSBeeb, and in B-Em, but the main sprite is corrupt in BeebEm.... Disc073-ShapesGame.zip...
View Article32-bit acorn hardware • Re: RiscPC almost working but not quite
There are also 3 off 33nF decoupling caps for each line (+12 V and - 12 V). There are only two 33nF caps on the 12V and -12V according to the schematics; C4,C5,C63,C75. I guess four of these have been...
View Articlenew projects in development: games • Re: [NOT AI] White Light 2
This is great news! The White Light is one of (or even the) best scrolling shoot em ups for the BBC. I like it, a lot. Targetting the sounds great too as not too many games really make use of it....
View Articleeconet and other acorn specific networking • Re: A new annotated disassembly...
I've just pushed a large batch of corrections to the Acorn NFS disassemblies (GitHub), covering NFS 3.34, 3.34B, 3.35D, 3.35K, 3.40, 3.60, 3.62 and 3.65. Most of it grew out of work on the ANFS...
View Articleeconet and other acorn specific networking • Re: Acorn ANFS: A new annotated...
It's horrible weather here this weekend with rain and even the first snow of the season, so a good day for sitting by the fire with the laptop. Evolving plans for Master support in my Beebium emulator...
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Introduce Yourself • Re: Hello from Seattle
Welcome, Jason. Statistics: Posted by flaxcottage — Sat Oct 10, 2026 3:32 pm
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8-bit acorn software: games - high scores • Re: High Score Challenge - S28 -...
I got well into the second round this time. Statistics: Posted by Rod C — Sat Oct 10, 2026 3:24 pm
View Article8-bit acorn hardware • Re: Pi1MHz Software
If it helps, I'm using a 28c256 eeprom in an ARA II with the retroclinic multirom. The master boots slightly before my raspberry pi 3A, so I just ctrl-break to get the hdmi output mirroring, then *VFS...
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8-bit acorn software: classic adventure games • Re: HTML remake of Merlin's...
I have some EXCELLENT news for everyone! With the help of Claude and ChatGPT i have brought Merlin's Castle back to life with a whole new illustrated version! I've always wanted to do this, and...
View Article8-bit acorn hardware • Re: Is this normal for a BBC psu?
How strange. The bridge appears to have been between d8 and j3 which are very close together, and looking at your picture suggests that this might be a common thing to accidentally bridge Generally...
View Article8-bit acorn hardware • Re: MultiROM: a low-cost flash cartridge for the BBC...
I have a need for such a device and am happy to order PCBs to deliver here in the UK. I just wanted to know are there any known issues especially with the PCB design? I could also look help with the...
View Article8-bit acorn software: classic games • Re: Looking for more Repton 3 screens /...
I can't really help with that, but if you like Repton 3 you might like this fan remake called "Linton". https://www.lexaloffle.com/bbs/?pid=43931 It's written for the Pico-8 so is a bit strange at...
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8-bit acorn hardware • Re: RGB to HDMI using a Pi Zero and a small CPLD
So I think the only person that would be able to answer your questions completely is Ian. Unfortunately, Ian has been unwell for much of the last year, and has not been active in this forum or on...
View Article8-bit acorn hardware • Re: Master 128 Motherboard Fun Begins
If there is nothing on the RGB inputs to the PAL Chroma ULA, why do you suspect it is dead? (and can you manage without composite video anyway?) Are both your syncs out of the 6845 correct now?...
View Article8-bit acorn software: other • Re: Panos Attempted Install Woes
It would appear so. I've not tried opening the InstDFS file on the second drive to see if it is in fact a script. I'm not sure how the rif/cmd/etc are represented on dfs drives. Is it C. R. something...
View Articlemiscellaneous new bbc and electron games • Re: Cleo for BBC Micro/Master
I haven't done any debugging, but this version fails on my emulator where the 4 banks model B version worked fine. I'll do some debugging later and see what is happening.Statistics: Posted by tricky —...
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8-bit acorn hardware • Re: 6522 VIA: many variants, possible behavior...
Sorry, no exotic 6522s out at the moment! I think one missing test is how many cycles it takes a write to a timer counter or latch to get into the timer. Assuming that reading is immediate it should...
View Articlenew projects in development: games • Re: Ant Attack [AI]
I think you should be able to use a single short line but move the hsync to compensate and then fix it up again at the bottom but haven't really thought it through!Statistics: Posted by tricky — Thu...
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