Search found 211 matches

by VectorEyes
Mon Jun 04, 2018 4:17 pm
Forum: hardware
Topic: Backing up old hard drives in repaired RiscPC
Replies: 4
Views: 442

Backing up old hard drives in repaired RiscPC

Hi everyone, I recently resurrected my old RiscPC, got rid of the leaking CMOS battery, cleaned it up, and got it booting up. The next thing I want to do is to see whether the hard drives are useable, and if so clone them onto some kind of removable solid state system (SD card, pretending to be an I...
by VectorEyes
Sun Jun 03, 2018 1:14 pm
Forum: past events & exhibitions
Topic: ABUG SOUTH 1 to 3 June 2018 (Hampshire) BOOKING THREAD
Replies: 125
Views: 12009

Re: ABUG SOUTH 1 to 3 June 2018 (Hampshire) BOOKING THREAD

I never thought I'd see a SCUMM game on an Acorn machine! I wish I could have come down for the day -- especially as I have a BBC Master with display output problems and a Risc PC that I want to get fully working again -- but sadly family commitments meant I just couldn't get the time away. Hopefull...
by VectorEyes
Fri Jun 01, 2018 12:17 pm
Forum: emulators
Topic: b2 - new emulator
Replies: 114
Views: 11232

Re: b2 - new emulator

Hello! I've been playing with B2. It's nice and easy to download and build on Windows. :) I wanted to see whether there was any way to quickly load a program, and set data read/write breakpoints. The debugger read/write breakpoint functionality is all present and correct in the codebase, but I could...
by VectorEyes
Wed May 30, 2018 10:24 pm
Forum: hardware
Topic: Where to start resurrecting a RiscPC 700
Replies: 20
Views: 1320

Re: Where to start resurrecting a RiscPC 700

After several weeks of being too busy, waiting for air-blower canisters to be delivered, cleaning all the dust out of the PSU, borrowing a multimeter to check the PSU voltages, etc, I finally got everything put back together, took a deep breath, turned it on... ... and was rewarded with the supervis...
by VectorEyes
Wed May 30, 2018 10:06 pm
Forum: hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 595
Views: 55995

Re: Palettemate / enhanced video ULA with 4096 colours

I'd quite like a VideoNULA at some point, but don't think I'd be able to make much use of it in the immediate future (ie next few months). Is there a limited supply so I should buy one now, or are they likely to be reasonably easily available for the foreseeable?
by VectorEyes
Wed May 30, 2018 9:57 am
Forum: hardware
Topic: BBC Master 128 -- black screen
Replies: 1
Views: 213

BBC Master 128 -- black screen

Morning everyone, I've got a Master 128 which I bought around 20 years ago. Just had it recapped and replaced the battery, and was hoping to get it plugged into my TV and start using it again. Unfortunately, either it's just outputting a blank screen, or I'm doing something stupid. I'm using an RGB-...
by VectorEyes
Mon May 21, 2018 2:12 pm
Forum: hardware
Topic: Advice on internal Datacentre 1MHz bus cable installation?
Replies: 22
Views: 1072

Re: Advice on internal Datacentre 1MHz bus cable installation?

I think Mark usually puts some card between the cable and the underside of the PCB and sticks the cable to the outside of the card using a glue gun (or similar). This prevents any of the legs/sharp bits of the the PCB from damaging the cable. I copied this when mounting my Pi co-pro inside my model...
by VectorEyes
Mon May 21, 2018 1:08 pm
Forum: hardware
Topic: Advice on internal Datacentre 1MHz bus cable installation?
Replies: 22
Views: 1072

Advice on internal Datacentre 1MHz bus cable installation?

Hi all, I bought a DataCentre a few weeks ago. I've finally arranged to get my Master 128 PSU recapped, so I thought it was high time I knuckled down and actually got it installed. Maybe it's a completely stupid question, but I've hit something I'm not clear about. I'd like to mount the 1MHz cable i...
by VectorEyes
Sat May 19, 2018 9:34 pm
Forum: emulators
Topic: Video Timing
Replies: 59
Views: 3428

Re: Video Timing

The Sony TV also has another problem with BBC machines, which is unrelated to Frogger. It sometimes can't do the sub-pixel antialiasing in Mode 7, displaying a sort of checkerboard effect instead. This tends to go away if you blank the screen (eg by changing mode). Some TVs have all sorts of signal...
by VectorEyes
Thu May 10, 2018 12:16 pm
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

I must admit, I have been very gently mulling over the idea of actually trying to make a sequel. The problems are that 1. I know virtually nothing about Beeb coding (yet!), 2. I have virtually zero free time and 3. It's difficult to think of improvements that wouldn't also somehow subtract from the ...
by VectorEyes
Wed May 09, 2018 9:59 pm
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

Just wanted to say that all the responses in this thread surpassed my wildest hopes. It's great to know once and for all what that bloody button does, and it's been a fascinating insight into how Exile works!
by VectorEyes
Wed May 09, 2018 9:57 pm
Forum: emulators
Topic: Which emulator to use: developing on Windows (VS2017)...
Replies: 4
Views: 517

Re: Which emulator to use: developing on Windows (VS2017)...

Thanks for all the replies! So far I'm leaning towards B2 simply because I was able to grab the sources, build, and get up and running inside an hour, with no need to install the June 2010 DXSDK. (I'm going to see whether there's any way I can also build B-Em and BeebEm without having to install old...
by VectorEyes
Tue May 08, 2018 4:51 pm
Forum: emulators
Topic: Which emulator to use: developing on Windows (VS2017)...
Replies: 4
Views: 517

Which emulator to use: developing on Windows (VS2017)...

Hello all, I have a half-formed plan to start doing some Beeb 6502 development, but because I'm new to the field, instead of becoming a 6502 opcode expert, I thought it might be more interesting to start by enhancing an existing emulator to support advanced debugging features. A sort of "learn by do...
by VectorEyes
Sun May 06, 2018 11:35 pm
Forum: hardware
Topic: Where to start resurrecting a RiscPC 700
Replies: 20
Views: 1320

Re: Where to start resurrecting a RiscPC 700

Thanks guys, I really appreciate your replies. In that case I'll just get as much dust as possible out of the PSU and then put it back together again!
by VectorEyes
Sun May 06, 2018 9:26 pm
Forum: hardware
Topic: Where to start resurrecting a RiscPC 700
Replies: 20
Views: 1320

Re: Where to start resurrecting a RiscPC 700

Thanks Daniel, I suspected as much. Back to gentle scrubbing with vinegar then!
by VectorEyes
Sun May 06, 2018 9:02 pm
Forum: hardware
Topic: Where to start resurrecting a RiscPC 700
Replies: 20
Views: 1320

Re: Where to start resurrecting a RiscPC 700

This is taking me a while. It's proving very difficult to get the yellow stuff out from one particular section of the motherboard. I've now scrubbed it four times with vinegar, rinsed with water then de-ionised water, left to dry ... and each time I find a few more components with the gunk on them! ...
by VectorEyes
Thu May 03, 2018 9:41 pm
Forum: software: classic games
Topic: Exile: Door Pass
Replies: 4
Views: 968

Re: Exile: Door Pass

I once lured the homing-rocket-firing robot out of his little room, pushed him off the edge so that he landed down at the bottom of the cyan-walled area next to a yellow door. Then when I was fighting him down there one of his rockets hit me when I was standing right next to the door, and it blew me...
by VectorEyes
Thu May 03, 2018 8:45 am
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

Yes, I was going to mention those two gargoyles but you beat me to it. They're definitely on the same x coordinate, I checked the map last night. So this thread has also ended up answering the question of why (as mentioned in the official solutions) blowing up one gargoyle also destroys the other! I...
by VectorEyes
Mon Apr 30, 2018 9:45 am
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

One extra thought: I wonder whether it's something to do with those switches being the only ones that control *two* doors at once? I'll have to go and look up whether there's anywhere else on the map where a switch controls more than one door at once.
by VectorEyes
Mon Apr 30, 2018 9:41 am
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

Ah, I see what you mean. Sorry triaxisaworm, I mis-read your post. My recollection is that closing the vertical door opposite the gargoyle makes it easier to blow it up, because the balls of flame that it emits are more likely to bounce back and damage it. I've no idea whether that was the intended ...
by VectorEyes
Sun Apr 29, 2018 9:43 pm
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

Wow, it feels so good (if a little bit tinged with sadness) to have the question answered after all these years! triaxisaworm, I think the vertical door near the 'actual' button (the coronium-past-the-bush-with-vertical-and-horizontal-door puzzle) is to stop the bush seeing into the corridor to the ...
by VectorEyes
Sat Apr 28, 2018 10:24 pm
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

This is exactly the sort of response I was secretly hoping for when I started this thread! :) Tom, when I sat down to try to work it out myself last week, I started out with both your buildable version and the version from level7.org.uk. I got as far as realising that the original dissassembly from ...
by VectorEyes
Thu Apr 26, 2018 9:51 pm
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

Thanks! Very useful links. So frustrating. The published C64 solution says to press the switch ... but doesn't say why! So now I'm left with the following options: - Play the C64 version under emulation up to that point to try to work out what effect it had on the C64. - Debug the BBC version, break...
by VectorEyes
Thu Apr 26, 2018 4:11 pm
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

Thanks! I read through both those solutions years ago (indeed I think one of them was the one I used to complete the game) but neither solution mentions that switch, sadly. Both of them pretty much ignore the red frogman as well. I always wondered whether they were somehow connected.
by VectorEyes
Thu Apr 26, 2018 1:21 pm
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

Re: My final unanswered Exile question

Thanks trixster. I have, yes. From memory, Lord Triax's play-through skips the area with the red frogman and that switch entirely. That being said, I'll go and double-check now just to make sure!
by VectorEyes
Thu Apr 26, 2018 12:11 am
Forum: hardware
Topic: Where to start resurrecting a RiscPC 700
Replies: 20
Views: 1320

Re: Where to start resurrecting a RiscPC 700

I've followed the excellent advice given so far, and managed to remove almost all of the gunk. It took me two nights, I realised that there was still quite a bit on some of the components after it had dried, so repeated the process. There are two small cubic components near the reset switch that hav...
by VectorEyes
Wed Apr 25, 2018 11:30 pm
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 65
Views: 5074

My final unanswered Exile question

Hi all, I grew up with Exile. It came out when I was in primary school. It's still, I think, the game that I remember most fondly. I finally completed it (under emulation) 15 years later. And I'm halfway through a second playthrough that solves it the 'proper' way (no cheating by abusing the physics...
by VectorEyes
Sun Apr 22, 2018 12:58 am
Forum: hardware
Topic: Where to start resurrecting a RiscPC 700
Replies: 20
Views: 1320

Re: Where to start resurrecting a RiscPC 700

First update: This evening, with the help of this guide... http://www.apdl.org.uk/riscworld/volumes/volume6/issue3/spring/index.htm ... and a few gulps of Glenmorangie, I stripped the machine down, snipped the battery off, and assessed the leakage damage. Unfortunately it doesn't look great. The bat...
by VectorEyes
Fri Apr 20, 2018 11:16 am
Forum: hardware
Topic: Where to start resurrecting a RiscPC 700
Replies: 20
Views: 1320

Re: Where to start resurrecting a RiscPC 700

Thanks everyone for the replies, really helpful. I was planning to snip out the battery but I've realised that it's surprisingly difficult to get to the small bits of wire between the battery and the motherboard what with all the other components in the way, so this weekend I'll be disassembling ent...