Search found 3034 matches

by jgharston
Sat May 26, 2018 1:13 pm
Forum: stardot.org.uk
Topic: Image sizes
Replies: 17
Views: 113

Re: Image sizes

I process my images to 640x480 and that seems clear and distinct enough to see what's being show, eg:
Image

What would be nice is to get the width=xx% attribute working.
by jgharston
Fri May 25, 2018 2:54 pm
Forum: off-topic
Topic: Forum GDPR compliance?
Replies: 53
Views: 514

Re: Forum GDPR compliance?

Somebody demanding that an event be removed from history gives me the collie wobbles. My inclination is to ask: ok, lend me your time machine and advise when I should travel to to stop you causing that event to happen. If on 23rd Feb 2018 Fred Jones said Boo! then on 23rd Feb 2018 Fred Jones said Bo...
by jgharston
Fri May 25, 2018 10:09 am
Forum: hardware
Topic: Watford solderless ROM Board and GoSDC?
Replies: 1
Views: 75

Re: Watford solderless ROM Board and GoSDC?

Does the Watford solderless SW ROM board work together with a GoSDC (which I assume would need to go into one of the two slots not covered by the Watford board). Or does the Watford board ‚lock out‘ the mainboard sockets? From memory the motherboard sockets become sockets 0,1,2,3 with the ROM board...
by jgharston
Fri May 25, 2018 10:03 am
Forum: off-topic
Topic: Forum GDPR compliance?
Replies: 53
Views: 514

Re: Forum GDPR compliance?

Due to a lack of interest last year I ended up on my parish council's Finance Committee which has been going through the GDPR stuff. I've just had a quick skim through our stuff and for StarDot the main questions are: * do we hold personal data on more than 5000 people? * do we use that data to send...
by jgharston
Fri May 25, 2018 9:38 am
Forum: off-topic
Topic: Forum GDPR compliance?
Replies: 53
Views: 514

Re: Forum GDPR compliance?

Elminster wrote:in a castle somewhere with man eating crocodiles and a grumpy troll.
Are the crocodiles tasty? ;)
by jgharston
Fri May 25, 2018 9:37 am
Forum: software
Topic: Nested archives in SparkFS
Replies: 2
Views: 71

Re: Nested archives in SparkFS

The only drawback is that some of the applications I’m transferring contain spark files (/zip or /arc) of their own. If I compress the application as the same file type (zip or arc) as the spark files contained within that application, then when I subsequently open the archive SparkFS also decompre...
by jgharston
Thu May 24, 2018 11:57 am
Forum: hardware
Topic: Testing the serial port
Replies: 3
Views: 118

Re: Testing the serial port

1024MAK wrote:Loop TXD to RXD, and CTS to RTS.
Then use any terminal software program.
I think JGH has a BASIC program somewhere on his site.
If the port is working, the screen should echo everything that you type.
SerTester
by jgharston
Wed May 23, 2018 7:06 pm
Forum: hardware
Topic: SpectROM - Speccy emulator for the Pi co-pro
Replies: 153
Views: 6600

Re: SpectROM - Speccy emulator for the Pi co-pro

I investigated the command line issue on various ARM platforms and documented them on the WIki.
by jgharston
Tue May 22, 2018 9:38 pm
Forum: hardware
Topic: GOTEK and ADFS Issue
Replies: 9
Views: 257

Re: GOTEK and ADFS Issue

I've recently dusted off some old Goteks and given them a new lease of life on my BEEB. I've flashed them to the latest version of flash floppy (v0.9.19a) and I can now successfully read .SSD and .DSD - success! However, the problem is, I cannot read ADFS .ADL images. If I select an .ADL file, get ...
by jgharston
Tue May 22, 2018 6:04 pm
Forum: archive submissions
Topic: CMS Manual scans second batch.
Replies: 4
Views: 236

Re: CMS Manual scans second batch.

I'd got to page 11 or so before I noticed a nagging voice telling me why the english didn't make any sense over the page breaks. ;)
by jgharston
Tue May 22, 2018 2:43 pm
Forum: archive submissions
Topic: CMS Manual scans second batch.
Replies: 4
Views: 236

Re: CMS Manual scans second batch.

Seems to only have odd-numbered pages. :(
by jgharston
Mon May 21, 2018 7:56 pm
Forum: programming
Topic: Deciphering some BASIC (discovering CommunITel Modem commands)
Replies: 10
Views: 260

Re: Deciphering some BASIC

130 DEFPROCcallALT 140 *FX21,1 --- Flush Serial input Buffer 150 *FX7,4 --- Receive 1200baud 160 *FX8,4 --- Send 1200 baud 170 *FX3,7 --- output to rs423 180 VDU &8D 190 time%=TIME:REPEAT:UNTIL TIME=time%+5 --- Pause 0.05s 200 *FX21,1 --- Flush Serial input buffer again 210 VDU &41,&4C,&54,&0D - se...
by jgharston
Thu May 17, 2018 4:05 pm
Forum: hardware
Topic: SpectROM - Speccy emulator for the Pi co-pro
Replies: 153
Views: 6600

Re: SpectROM - Speccy emulator for the Pi co-pro

Does anyone know what RAMFS on the DC uses? I'm guessing that it has a similar issue but I can't find my USB->serial cable to check with a debug build of the Pi co-pro! RAMFS uses 0/1 as it's built from the DFS code which only uses 0/1. RAMFS 1.00 has bugs in that some actions don't claim and relea...
by jgharston
Thu May 17, 2018 12:11 pm
Forum: hardware
Topic: SpectROM - Speccy emulator for the Pi co-pro
Replies: 153
Views: 6600

Re: SpectROM - Speccy emulator for the Pi co-pro

RobC wrote:I'll try to do some more investigation if I can find some time - does anyone know of a ROM or utility that will allow me to view a co-pro's RAM?
*MDUMP on the Tube Utilities disk and BBC Utilities Disk link and link
*MDUMP FFxxxxxx dumps I/O memory
*MDUMP <>FFxxxxxx dumps CoPro memory
by jgharston
Sat May 12, 2018 9:46 am
Forum: programming
Topic: RISCPC accessing parallel port in BASIC
Replies: 5
Views: 198

Re: RISCPC accessing parallel port in BASIC

Something like: SYS "Parallel_Op",2,0,NOT 32:REM Set as output SYS "Parallel_Op",1,data:REM Write to parallel port : SYS "Parallel_Op",2,32,NOT 32:REM Set as input SYS "Parallel_Op",0 TO ignore,data,status:REM Read from parallel port The documentation doesn't actually say which way about bit 5 is to...
by jgharston
Tue May 01, 2018 4:58 pm
Forum: hardware
Topic: Elk Sideways Rom\Ram, Shadow Ram etc.
Replies: 6
Views: 329

Re: Elk Sideways Rom\Ram, Shadow Ram etc.

"Language" is really Acorn's name for "foreground application", and naturally there can only be one foreground application at any one time.
by jgharston
Sun Apr 29, 2018 12:59 am
Forum: hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 561
Views: 44688

Re: Palettemate / enhanced video ULA with 4096 colours

I've been trying to add some sample screen images to the BeebWiki, but there's a fault in image uploading that I spent most of today failing to solve. Anyway, what I did do test interaction between the VideoNuLA VDU driver extended MODEs and my software extended MODEs . The disk-based NewModes works...
by jgharston
Sun Apr 29, 2018 12:44 am
Forum: hardware
Topic: SpectROM - Speccy emulator for the Pi co-pro
Replies: 153
Views: 6600

Re: SpectROM - Speccy emulator for the Pi co-pro

*zxinit - appears to run and goes back to a prompt. *zxscreen - Clears screen to what looks like mode 2 and also goes to a prompt but all the characters are redefined The characters aren't redefined, the ULA is redefined to interpret the video memory contents Spectrum-style, but the VDU drivers are...
by jgharston
Fri Apr 27, 2018 10:01 am
Forum: hardware
Topic: Vertical position on TV screen too high
Replies: 16
Views: 731

Re: Vertical position on TV screen too high

2. is there any way to fix this on an Electron or BBC other than through a *TV... ? With a Beeb, program an ROM to issue a *TV OSBYTE on RESET? With an Electron, nothing as, as you have pointed out, the Elk does not support adjusting the display vertical position. All you can do is twiddle the vert...
by jgharston
Fri Apr 27, 2018 9:55 am
Forum: hardware
Topic: A 200Kb into a 199.5Kb pot!
Replies: 16
Views: 548

Re: A 200Kb into a 199.5Kb pot!

I've got a Turbo MMC and the MMB Imager s/w that came with it. ... The DSDs are Torch Z80 system discs if that has any bearing on the stituation? It could be the MMB Imager is examining the contents of the disk images expecting to find a DFS filesystem and interpreting the contents as a DFS filesys...
by jgharston
Wed Apr 25, 2018 11:15 am
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 1 to 3 June 2018 (Hampshire) BOOKING THREAD
Replies: 46
Views: 4101

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

I'm sure I could be pursuaded to bring my drill and bits with me.....though having drilled the rivits out I'm not sure how to go about safely fixing the PSU shut again....luckily the //e has screws in it's PSU...... After drilling out the rivets you could use cold rivits to replace them. You need s...
by jgharston
Mon Apr 23, 2018 10:26 am
Forum: hardware
Topic: A9 Home and new to RISC OS
Replies: 25
Views: 861

Re: A9 Home and new to RISC OS

Switcher (icon at bottom right) -> Shut down.
Image

Or Shift-Ctrl-F12.
by jgharston
Sun Apr 22, 2018 5:16 pm
Forum: upcoming and recent events & exhibitions
Topic: Wakefield RISC OS show 21st April 2018
Replies: 57
Views: 2988

Re: Wakefield RISC OS show 21st April 2018

Using somebody else's DataCentre and a collection of keyboards I think I dug out my USB keybaord + Hub problem. In essence, two of the USB keyboards I have aren't actually USB keyboards, but are PS2 keyboards with a USB plug on them that you can plug into a little USB-PS2 adaptor to plug into a PS2 ...
by jgharston
Sun Apr 22, 2018 5:10 pm
Forum: upcoming and recent events & exhibitions
Topic: Wakefield RISC OS show 21st April 2018
Replies: 57
Views: 2988

Re: Wakefield RISC OS show 21st April 2018

daveejhitchins wrote:Apologies to everyone that attended Wakefield today from both my wife and I.
....from I ???? [-X
by jgharston
Sun Apr 22, 2018 5:05 pm
Forum: software & utilities for the pc, mac or unix
Topic: BeebDis updates
Replies: 3
Views: 305

Re: BeebDis updates

Hi Phill, Thanks for all this work. I've used BeebDis again in anger over the last few days, doing a disassembly of BBC Basic 4r32: https://github.com/hoglet67/BBCBasic4r32/tree/master/disassembly I made a start on Basic 4.32 some time ago. Every now and then I comment a few more lines: mdfs.net/bb...
by jgharston
Sun Apr 22, 2018 4:44 pm
Forum: emulators
Topic: Video Timing
Replies: 31
Views: 1229

Re: Video Timing

by jgharston
Fri Apr 20, 2018 9:42 pm
Forum: emulators
Topic: Video Timing
Replies: 31
Views: 1229

Re: Video Timing

by jgharston
Fri Apr 20, 2018 4:07 pm
Forum: upcoming and recent events & exhibitions
Topic: Wakefield RISC OS show 21st April 2018
Replies: 57
Views: 2988

Re: Wakefield RISC OS show 21st April 2018

Have arrived. Am looking for something cold and wet. :)
by jgharston
Fri Apr 20, 2018 2:34 pm
Forum: upcoming and recent events & exhibitions
Topic: Wakefield RISC OS show 21st April 2018
Replies: 57
Views: 2988

Re: Wakefield RISC OS show 21st April 2018

Just about to set off. I'll see any Friday arrivers at teatime. :)