Search found 141 matches

by dv8
Tue Sep 25, 2018 8:02 am
Forum: hardware
Topic: New econet setup
Replies: 75
Views: 1471

Re: New econet setup

Shouldn't the filing systems be 'DISC' and 'NET' without the leading colon?
by dv8
Mon Sep 10, 2018 11:40 am
Forum: software: classic games
Topic: PC emulator and key mapping for games
Replies: 4
Views: 169

Re: PC emulator and key mapping for games

I've tried those games (from bbcmicro.co.uk) and they work fine using @ for up.
I'm using BeebEm on Windows, with the setting Options > Default keyboard mapping turned on.
by dv8
Mon Sep 10, 2018 9:14 am
Forum: software: classic games
Topic: PC emulator and key mapping for games
Replies: 4
Views: 169

Re: PC emulator and key mapping for games

Emulators typically use a positional keyboard layout, that is the keys are mapped so they are in the same relative positions as they would be on the real hardware. If you look at a photo of a beeb keyboard you will see that the | * : | key is immediately up and to the right of the | ? / | key. On a ...
by dv8
Fri Sep 07, 2018 7:13 pm
Forum: hardware
Topic: Watford Electronics Speech Synthesiser
Replies: 3
Views: 164

Re: Watford Electronics Speech Synthesiser

Found the problem. The Computer Concepts Speech ROM that I also have in this machine was causing a conflict #-o Having beeb emulation on MAME would be really handy but I've never been able to get it working properly. I can't find a working download of saa5050 (presumably the teletext font). Any idea...
by dv8
Fri Sep 07, 2018 3:27 pm
Forum: hardware
Topic: Watford Electronics Speech Synthesiser
Replies: 3
Views: 164

Watford Electronics Speech Synthesiser

Does anyone here have a Beeb Speech Synthesiser from Watford Electronics? I recently picked one up but it's behaving a bit strange. If you have one of these units could you please try this program: 10 *FX 25,255 20 VDU 46 30 *TALK COMPUTER 40 GOTO 20 It should just keep repeatedly saying 'computer' ...
by dv8
Fri Sep 07, 2018 3:04 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 159
Views: 14527

Re: PiTubeDirect signalconverter for BBC Micro

I'm using these with my external Pi 3B+.
They are about £5.50 for two, a decent length but not too long, and have been rock solid for the past year or so despite being plugged and unplugged several times.
by dv8
Mon Aug 27, 2018 2:16 pm
Forum: hardware
Topic: Can't get Gotek Flash Floppy working. u56=USB [SOLVED]
Replies: 42
Views: 1222

Re: Can't get Gotek Flash Floppy working. u56=USB

A few years back I got a Gotek for one of my Amigas that was extremely fussy about which USB sticks it would work with, just like yours. More recently though, all the ones I've got for use with the Beeb have been fine with any stick. Taking a quick look at them I noticed a difference with the unpopu...
by dv8
Thu Aug 23, 2018 11:34 am
Forum: hardware
Topic: AND01 troubles
Replies: 35
Views: 810

Re: AND01 troubles

So I am getting somewhere. In OS1.20 on the Master *FX255,223 allows me to format a disc without issue as well as load and save small programs. Larger programs are still suffering though and make some unpleasant clunking noises and then fail with disc faults such as 18 at :0 13/09. It might never f...
by dv8
Thu Aug 23, 2018 8:46 am
Forum: hardware
Topic: AND01 troubles
Replies: 35
Views: 810

Re: AND01 troubles

As Chris said, the step times might not be something it's liking and I can't remember how they're set in the patched DFS... In OS 1.2 and 2.0 the step times are set permanently with keyboard links 3 and 4 or temporarily with *FX255,n In MOS 3.2 and 3.5 they are set with *CONFIGURE FDRIVE n As menti...
by dv8
Wed Aug 22, 2018 10:43 pm
Forum: software: other
Topic: Master users: What MOS are you running?
Replies: 19
Views: 703

Re: Master users: What MOS are you running?

I'd not come across MOS+, but some searching suggests Dabs produced it to basically patch some problems with the MOS. Does anyone use it? It fixes some bugs in DFS and adds a bunch of new features like single-drive backup using sideways RAM and built-in *FORMAT / *BACKUP / *VERIFY commands for ADFS...
by dv8
Tue Aug 21, 2018 3:46 pm
Forum: programming
Topic: BBC BASIC: SOUFND and Envelope?
Replies: 1
Views: 135

Re: BBC BASIC: SOUFND and Envelope?

Channels &FF00 - &FFFF are reserved for the Acorn Speech System.

Channel &2000 is used by the Watford Electronics Speech Synthesiser:

SOUND &2000,word_number,dictionary,0
by dv8
Mon Aug 20, 2018 11:50 am
Forum: software: other
Topic: Master users: What MOS are you running?
Replies: 19
Views: 703

Re: Master users: What MOS are you running?

3.5 is useful for pushing a sensible set of CMOS settings in there :D Are you saying that's all it's useful it for? :lol: I added this feature into my ROM manager so it re-configures CMOS to my preferred settings under 3.2. I run most of my Masters without a battery and just hold down R when first ...
by dv8
Mon Aug 20, 2018 11:13 am
Forum: software: other
Topic: Master users: What MOS are you running?
Replies: 19
Views: 703

Re: Master users: What MOS are you running?

I run a custom made quad MOS ROM on all my Masters with the usual Y2K/IDE patches. Mostly they get used in MOS 3.2 mode, dropping down to OS 1.2 for games compatibility. I usually replace the ROMs I don't need (View/ViewSheet/Edit) with ones that are more useful (filing systems for DataCentre / SD c...
by dv8
Sun Aug 19, 2018 10:15 am
Forum: programming
Topic: Caling machine code from BASIC
Replies: 7
Views: 294

Re: Caling machine code from BASIC

Will this process be as simple as:- Compile the text wrap program *save “txtWrap” #### #### In the main BASIC program:- DIM txtWrap% 200 *load “txtWRAP” txtWrap% . . . CALL txtWrap%, message$ This will only work if the code is relocatable, that is it doesn't contain any absolute references to itsel...
by dv8
Wed Aug 08, 2018 9:13 am
Forum: other vintage computer hardware, software and games
Topic: C64 phase 2 of repairs
Replies: 30
Views: 944

Re: C64 destroying 5v PSUs?

Also.. any thoughts on what is going on here? It's the limitations of a composite video signal, some colour combinations will blend together like this. It will look better if you change the background colour to black with POKE 53281,0 The C64 can do separated chroma/luma video which gives a much sh...
by dv8
Tue Aug 07, 2018 6:23 pm
Forum: hardware
Topic: Can't get Gotek Flash Floppy working. u56=USB [SOLVED]
Replies: 42
Views: 1222

Re: Can't get Gotek Flash Floppy working. u56=USB

When I power it on, it shows "F-F" but when I try to select a disk with a button, it just shows "0", "9", "25A". If I power it on with both buttons pressed, it shows "uPd", but when I let go, it shows "u5b", indicating a USB current overload (iirc). This is what the Gotek does when it's powered on ...
by dv8
Sat Aug 04, 2018 1:37 pm
Forum: hardware
Topic: Cumana QFS Floppy disk board save file.
Replies: 2
Views: 135

Re: Cumana QFS Floppy disk board save file.

To save a BASIC program the command is SAVE (must be in upper case) followed by the filename in double quotes (up to a maximum of 7 characters for DFS). For example:

SAVE "PROG"

The *SAVE command is for saving blocks of memory and has a different syntax.
by dv8
Thu Aug 02, 2018 8:06 am
Forum: hardware
Topic: Help - Losing ROM/RAM board after running software and pressing Break
Replies: 14
Views: 361

Re: Help - Losing ROM/RAM board after running software and pressing Break

Okay, I'm an idiot. The correct address for the power-on reset is &FE4E (not &FE43 like in my original post). #-o No wonder it wasn't working! The command lurkio posted above should work. An alternative version, this also works if the Tube is active: *FX 151,78,127 The commands you suggested were ru...
by dv8
Wed Aug 01, 2018 5:01 pm
Forum: hardware
Topic: Help / Question on IFEL ROM/RAM board and Datacentre
Replies: 14
Views: 395

Re: Help / Question on IFEL ROM/RAM board and Datacentre

^ Why does Ghouls do that, you mean?

It's probably just a bug. My guess is when it clears the screen it overshoots the end of video memory so some of the ROM space gets 'cleared' too.
by dv8
Wed Aug 01, 2018 3:27 pm
Forum: hardware
Topic: Help - Losing ROM/RAM board after running software and pressing Break
Replies: 14
Views: 361

Re: Help - Losing ROM/RAM board after running software and pressing Break

Also tried ?&FE43=&7F followed by BREAK and again I just get BBC Computer BASIC Hmm, that's not right. After this type of break the top line should always read BBC Computer 32K and you should hear the usual startup beep. Are you sure you entered the command correctly, and pressed Return afterwards ...
by dv8
Wed Aug 01, 2018 3:01 pm
Forum: hardware
Topic: Help / Question on IFEL ROM/RAM board and Datacentre
Replies: 14
Views: 395

Re: Help / Question on IFEL ROM/RAM board and Datacentre

Ghouls writes into the ROM area at &8000 which causes problems with the on-board flash memory. Fitting a toggle switch onto the write-protect jumper would prevent this kind of crash. The flash chip could be protected from unwanted writes most of the time and only turned on when you specifically want...
by dv8
Wed Aug 01, 2018 2:30 pm
Forum: hardware
Topic: Help - Losing ROM/RAM board after running software and pressing Break
Replies: 14
Views: 361

Re: Help - Losing ROM/RAM board after running software and pressing Break

Some other things you could try... Enter the command: *FX200,2 then press Ctrl-Break. This will cause most of the memory to be cleared on break. Games typically include this command themselves so memory is automatically cleared, but it's worth a try. You can also get the equivalent of a power-on col...
by dv8
Tue Jul 31, 2018 8:50 am
Forum: archive requests
Topic: Computer Concepts 'Text to Speech' Manual
Replies: 9
Views: 1309

Re: Computer Concepts 'Text to Speech' Manual

This past weekend there was a copy of the SPEECH SYSTEM on eBay.
Unfortunately, it went beyond what I was willing to pay for it.

That package will definitely have a copy of the missing 'Text To Speech' instructions.

If anyone here won it, would you mind scanning the TTS manual?

Pretty please! [-o<
by dv8
Wed Jul 11, 2018 9:11 pm
Forum: programming
Topic: Files created by OPENOUT
Replies: 6
Views: 706

Re: Files created by OPENOUT

Assuming this is what you mean, the info is in the User Guide entry for the PRINT# keyword on page 328: Integer variables are written as &40 followed by the two’s complement representation of the integer in four bytes, most significant byte first. Real variables are written as &FF followed by four b...
by dv8
Mon Jun 25, 2018 10:03 pm
Forum: introduce yourself
Topic: Hey!
Replies: 23
Views: 896

Re: Hey!

I was just waiting for speech chip (which arrived today and does NOT work lol - pretty much what I expected from China, well - either that's faulty or the special ROM that goes with it). Something to be aware of with the speech chip: the frequency may need to be adjusted using the trim pot to the l...
by dv8
Tue May 29, 2018 5:14 pm
Forum: emulators
Topic: Emulator setup to make all ROM area writes use bank 15 SWR
Replies: 23
Views: 592

Re: Emulator setup to make all ROM area writes use bank 15 SWR

BeebEm supports write-through, but only to the lowest numbered RAM bank.

If you make sure that bank 15 is the only one configured as RAM it should work.
by dv8
Sat May 26, 2018 2:12 pm
Forum: archive requests
Topic: Watford Beeb Speech Synthesiser
Replies: 9
Views: 808

Re: Watford Beeb Speech Synthesiser

According to the manual ... the allophones for O'CLOCK are OW PA3 KK1 LL DD1. It's clearly wrong though. At some point they must have found the mistake and issued a patched ROM. (In my original post, PA2 should have been PA3. I forgot that pauses are named PA1..PA5 even though they have allophone n...
by dv8
Wed May 16, 2018 1:15 pm
Forum: off-topic
Topic: Scanning manuals.
Replies: 3
Views: 334

Re: Scanning manuals.

Same here. I always scan to a lossless format first so there is no drop in quality during editing. For text and line art I scan at 600 dpi, 1-bit. Black+white photos at 300 dpi, 8-bit greyscale. Colour photos at 300 dpi, 24-bit colour. When scanning stapled documents in the past I've always removed ...
by dv8
Sun May 13, 2018 1:45 pm
Forum: hardware
Topic: sideways Ram
Replies: 8
Views: 328

Re: sideways Ram

My guess is that it's either FRAM or a RAM module with a built-in battery.
Mark has used both types in his machines over the years.
by dv8
Sun May 13, 2018 1:19 pm
Forum: hardware
Topic: sideways Ram
Replies: 8
Views: 328

Re: sideways Ram

The problem is that Comstar is in a higher priority ROM than BASIC so it will always boot as the default language.

So, yeah, the only real solution is to load something else into that bank or wipe it out with

*SRWRITE 2000+4000 8000 11

then press Break.