Search found 500 matches

by geraldholdsworth
Sat Sep 21, 2019 7:17 pm
Forum: for sale / freebies
Topic: FS: Acorn Plus 1 expansion unit.
Replies: 8
Views: 242

Re: FS: Acorn Plus 1 expansion unit.

Vyper68 wrote:
Sat Sep 21, 2019 12:02 pm
Okay will have to wait for another to come along.
There's one up for sale on the Facebook group...OK, it comes with two Electrons.
by geraldholdsworth
Wed Sep 18, 2019 9:15 pm
Forum: hardware
Topic: A3000 arm 3 processor upgrade
Replies: 4
Views: 184

Re: A3000 arm 3 processor upgrade

I know how to do it, but haven't done so for many years. It ain't easy and requires good eyesight (something I no longer have) and a steady hand.
This discussion has come up before, and the conclusion was that it isn't worth the effort (taking into account actually getting your hands on an ARM3).
by geraldholdsworth
Wed Sep 18, 2019 6:52 am
Forum: wanted
Topic: Wanted: BBC Micro Superior Software Disc Titles
Replies: 2
Views: 82

Re: Wanted: BBC Micro Superior Software Disc Titles

Steve Hanson still sells old BBC Micro and Electron copies of Superior titles, so he may still have some, or all, of what you want. I can't remember his email address, but if you drop his brother Richard an email (support@superiorinteractive.com), he'll furnish you with the appropriate details. Chee...
by geraldholdsworth
Thu Sep 12, 2019 2:09 pm
Forum: programming
Topic: Reading the graphics cursor
Replies: 4
Views: 195

Re: Reading the graphics cursor

There is bound to be - I don't have the information to hand, but what I do suggest you do is find a copy of the Advanced User Guide and the Master Reference Guides which will give far more detailed information than just the BBC User Guide (I actually found the Electron User Guide to be much better w...
by geraldholdsworth
Wed Sep 11, 2019 5:46 pm
Forum: general
Topic: Today I received.....
Replies: 5410
Views: 418411

Re: Today I received.....

martinw wrote:
Wed Sep 11, 2019 5:39 pm
My 52nd Birthday present (a bit early) =D>
'Early' as in days early, or 'early' as in years early?
:D
by geraldholdsworth
Sun Sep 08, 2019 11:44 am
Forum: for sale / freebies
Topic: IBM OS/2
Replies: 10
Views: 419

Re: IBM OS/2

I'd be interested, just to have a play with, but I don't have anything old enough to run it on...unless it'll run on an RiscPC with a PC card.
by geraldholdsworth
Sat Sep 07, 2019 9:09 am
Forum: emulators
Topic: b-em - bug or misunderstanding
Replies: 12
Views: 626

Re: b-em - bug or misunderstanding

Playing with b-em (Current master) I find the following. *ADFS doesn't work. - It looks for a file. *FADFS works OK. That is also the behaviour of a real machine. *ADFS (or A-Break) will attempt to mount a directory, but *FADFS (or F-Break) will not. On a Master, IIRC, it is configurable whether AD...
by geraldholdsworth
Sun Aug 25, 2019 8:58 am
Forum: stardot.org.uk
Topic: Notifications....
Replies: 6
Views: 618

Re: Notifications....

Prime wrote:
Sat Aug 24, 2019 10:05 pm
Had a notification of a PM in my email
You're lucky you get the emails. I have been sent PMs before with no sign of any emails, despite the option being ticked in the preferences. Sometimes I do, sometimes I don't.

Gerald.
by geraldholdsworth
Fri Aug 23, 2019 6:47 pm
Forum: wanted
Topic: 3½ inch PC Floppy Drive (internal)
Replies: 6
Views: 324

Re: 3½ inch PC Floppy Drive (internal)

I definitely found it ... IT department was scrapping some old PC's so I nabbed the floppy drive at the cost of a cinnamon roll from the local baker :) I should've responded earlier...I do believe I have a few drives spare in my loft, which I can swap for cinnamon rolls. What is the going rate, 1 r...
by geraldholdsworth
Fri Aug 23, 2019 6:47 am
Forum: hardware
Topic: Femto Flash Floppy
Replies: 28
Views: 1037

Re: Femto Flash Floppy

If one were to fit the internal floppy connector on the Master, it could go inside the machine.
by geraldholdsworth
Wed Aug 14, 2019 7:28 pm
Forum: hardware
Topic: RISC OS 2 8mb compatibility
Replies: 13
Views: 502

Re: RISC OS 2 8mb compatibility

Well...I just did just that and it doesn't like >4MB on RO2.
by geraldholdsworth
Wed Aug 14, 2019 7:25 pm
Forum: hardware
Topic: RISC OS 2 8mb compatibility
Replies: 13
Views: 502

Re: RISC OS 2 8mb compatibility

Could you fire up Arculator, configure it for RO2 and 8MB and see if it sees it?
by geraldholdsworth
Wed Aug 07, 2019 11:39 am
Forum: off-topic
Topic: Virtual Assistants - Return of the command line?
Replies: 3
Views: 179

Re: Virtual Assistants - Return of the command line?

Congratulations on your newborn. Personally I don't like the Amazon Echo - it has to work on WiFi, so you can't plug an ethernet cable into it; you need a 'smart' phone to set it up (I do have one, but it stays in my bedroom 99% of the time acting as an alarm clock); and it can't understand my wife'...
by geraldholdsworth
Wed Aug 07, 2019 11:28 am
Forum: general
Topic: Disc or Disk. Silly-Season debate.
Replies: 93
Views: 1526

Re: Disc or Disk. Silly-Season debate.

In my opinion, spelling it 'disc' or 'disk' is personal preference and does not really matter.
I see 'disk' as being a shortened version of 'diskette', but I find that 'disc' is a more aesthetically pleasing word.
by geraldholdsworth
Tue Aug 06, 2019 9:18 am
Forum: software & utilities for the pc, mac or unix
Topic: DFSBuster
Replies: 3
Views: 547

Re: DFSBuster

It's a fun space to write code in, and there's a number of alternate solutions. I'll be interested to see what Julie comes up with when she next gets "writers block" :-) I'm always interested to see how others have managed (or rather, 'if') how to detect DFS disc images without using the file exten...
by geraldholdsworth
Sun Aug 04, 2019 1:23 pm
Forum: hardware
Topic: Can anyone tell me what this MOD is?
Replies: 11
Views: 410

Re: Can anyone tell me what this MOD is?

The hard disc might have the software for it on. Probably in the !Boot structure.
by geraldholdsworth
Sun Aug 04, 2019 11:55 am
Forum: hardware
Topic: Can anyone tell me what this MOD is?
Replies: 11
Views: 410

Re: Can anyone tell me what this MOD is?

VIDC enhancer?
by geraldholdsworth
Wed Jul 31, 2019 8:47 am
Forum: software: other
Topic: MMFS Version 2
Replies: 13
Views: 597

Re: MMFS Version 2

I think that this is a fantastic idea. I never saw the point of the MMB file anyway. *dossave is not possible because you only have 4 kilobytes for a bbcrom. you save a file in your *dosload game.ssd file :) What if you wanted to create a new disc image on the SD card, on the BBC side, and then copy...
by geraldholdsworth
Wed Jul 24, 2019 12:04 pm
Forum: hardware
Topic: Cheapest/Easiest way to read collection of 5 1/4" floppies?
Replies: 9
Views: 306

Re: Cheapest/Easiest way to read collection of 5 1/4" floppies?

Probably finding someone on here who has got some hardware and would do it for you.
by geraldholdsworth
Fri Jul 05, 2019 10:27 am
Forum: general
Topic: Where is everyone? An information gathering topic
Replies: 125
Views: 29226

Re: Where is everyone? An information gathering topic

Just added my location too - all alone up here in the Highlands. Looks like I'm the furthest north in the UK.
by geraldholdsworth
Fri Jul 05, 2019 8:53 am
Forum: programming
Topic: switching Beebem to US format
Replies: 3
Views: 186

Re: switching Beebem to US format

starshine wrote:
Fri Jul 05, 2019 7:14 am
is there a US version of the BASIC kernel? I find it easier to spell color in the US format, less strain on the wrists. also, this is being done from a laptop, so it's somewhat uncomfortable
Why not just type 'C.'? Even less strain on the wrists.
Screen Shot 2019-07-05 at 09.55.48.PNG
Screen Shot 2019-07-05 at 09.55.48.PNG (2.07 KiB) Viewed 168 times
by geraldholdsworth
Sat Jun 22, 2019 1:44 pm
Forum: programming
Topic: RNDX and Master
Replies: 8
Views: 364

Re: RNDX and Master

roganjosh wrote:
Sat Jun 22, 2019 1:12 pm
For completeness, after looking at the disassembly, it looks to me as though RNDX on Basic07 is at $aab0. So the full list is therefore:
And if you read the version string from the ROM you can then compensate for different versions using the same program (i.e. make it multi-platform)

Gerald.
by geraldholdsworth
Tue Jun 11, 2019 4:11 pm
Forum: off-topic
Topic: Trying to wire an RS-422 cable
Replies: 2
Views: 211

Re: Trying to wire an RS-422 cable

So I found this online: 4wire_rs422_fig1.gif Which agrees with what I reckon it should be: AMX DB9 Fostex DB9 RX- 1 RED -> 2 RED !TX TX+ 4 GREEN -> 3 GREEN RX GND 5 BLACK -> 9 BLACK GND RX+ 6 BLUE -> 7 BLUE TX TX- 9 WHITE -> 8 WHITE !RX Should I just take the existing wiring as a red herring and car...
by geraldholdsworth
Tue Jun 11, 2019 3:30 pm
Forum: off-topic
Topic: Trying to wire an RS-422 cable
Replies: 2
Views: 211

Trying to wire an RS-422 cable

Hi all, I have a little quandry, which is nothing to do with Acorns. But I'm asking here because this is full of clever chaps and chapesses, and my brain is turning to mush trying to work this out. I'm trying to wire, for a client, an RS-422 serial cable with DB9 and each end. One end is a Fostex, o...
by geraldholdsworth
Fri May 31, 2019 2:19 pm
Forum: hardware
Topic: Composite video from the BBC
Replies: 23
Views: 822

Re: Composite video from the BBC

EDIT... Now I do know a bit about the differing types of BNC's > https://en.wikipedia.org/wiki/BNC_connector Video (particularly HD video signals) and DS3 Telco central office applications primarily use 75 ohm BNC connectors, whereas 50 ohm connectors are used for data and RF. Many VHF receivers us...
by geraldholdsworth
Fri May 31, 2019 2:17 pm
Forum: hardware
Topic: Composite video from the BBC
Replies: 23
Views: 822

Re: Composite video from the BBC

Was not aware of the different BNC's, I used to have a box of those BNC > Phono adaptors and each machine that appeared would have one attached regardless of if I wanted to use composite or not :lol: simply just as I found a phono cable easier! :oops: We were warned to look out for them, as both ty...
by geraldholdsworth
Fri May 31, 2019 2:00 pm
Forum: hardware
Topic: Composite video from the BBC
Replies: 23
Views: 822

Re: Composite video from the BBC

I'd also like to chip in to say that there are, at least, two different variants of BNCs. There are 75ohm and 50ohm variants, which have different sized centre pins. The 75ohm ones are used for video, and the 50ohm are used for...well, actually, I can't remember - it's been 10 years since I worked o...
by geraldholdsworth
Sat May 25, 2019 10:09 am
Forum: hardware
Topic: Interfacing to AMX Control box
Replies: 0
Views: 121

Interfacing to AMX Control box

NOTE: Nothing to do with the AMX mouse or associated software. Since I bought my AMX NI-4100 master controller (really intended for being a master controller in an Audio/Visual environment), and the few other AMX bits I've since purchased for not much money off Ebay (and the AMX programming course a...
by geraldholdsworth
Fri May 24, 2019 11:16 am
Forum: software
Topic: Disassembler for RISCOS 3.x
Replies: 5
Views: 312

Re: Disassembler for RISCOS 3.x

If you can find it, !ARMalyser. Although, I can't remember if I've used it in RISC OS 3.1 - I've certainly disassembled 3.1 code with it.
by geraldholdsworth
Wed May 22, 2019 8:23 pm
Forum: archive submissions
Topic: Midwich MWFS
Replies: 4
Views: 240

Re: Midwich MWFS

Yep, from their website: Midwich Computer Company Limited formed by David and Ruth Watson. Principal activity was the design and distribution of microprocessors and systems, with particular focus on disk drives for the BBC and Acorn range of home and school computers. Based at Rickinghall, Suffolk....