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Acorn Graphics Extension ROM (GXR) User Guide [Remastered PDF]

Posted: Mon Apr 01, 2019 10:29 pm
by dv8
Attached is a remastered PDF of the Acorn Graphics Extension ROM user guide along with the reference card and keystrip.

The included zip file contains:
  • two GXR ROMs (version 1.20 for the Model B and version 2.00 for the B+)
  • two SSD disc images containing the above ROMs, listings from the manual and extra programs from a cassette originally supplied with the GXR. The Sprite disc also contains the Master Sprite ROM. Both discs can be booted with Shift+Break to show a menu of available programs.
Graphics_Extension_ROM.pdf
(266.73 KiB) Downloaded 913 times
Graphics_Extension_ROM_Reference.pdf
(46.54 KiB) Downloaded 236 times
Graphics_Extension_ROM_KeyStrip.pdf
(14.67 KiB) Downloaded 150 times
Graphics_Extension_ROM.zip
(70.46 KiB) Downloaded 59 times

Other remastered user guides you may be interested in:

Computer Concepts Graphics ROM User Guide
BBC Micro User Guide (Model B and B+ editions)
Advanced User Guide
New Advanced User Guide

Re: Acorn Graphics Extension ROM User Guide

Posted: Mon Apr 01, 2019 11:11 pm
by jms2
That looks terrific! It must have taken ages to get it that good!

I may have the card.

Re: Acorn Graphics Extension ROM User Guide

Posted: Mon Apr 01, 2019 11:37 pm
by lurkio
dv8 wrote:
Mon Apr 01, 2019 10:29 pm
Attached is a remastered PDF of the Acorn Graphics Extension ROM user guide.
Superb! This has prompted me to do a quick rewrite of the circles/interference program using the GXR ROM:
:idea:

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 7:22 am
by Lardo Boffin
I have the reference card and will take some photos later on when it is a bit lighter.

You may need to pm me an email address to send the photos to otherwise they will be compressed if put as attachments on here.

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 8:32 am
by tricky
Thanks for these, does it happen to mention any differences between this and the built in version on the master?

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 9:07 am
by Lardo Boffin
The card is 13MB scanned at 250DPI.

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 10:22 am
by dv8
jms2 wrote:
Mon Apr 01, 2019 11:11 pm
That looks terrific! It must have taken ages to get it that good!
Thanks. Short books like this really don't take too long, especially when they have a bunch of listings that can just be copy+pasted.
tricky wrote:
Tue Apr 02, 2019 8:32 am
Thanks for these, does it happen to mention any differences between this and the built in version on the master?
It predates the Master so no mention of it. As far as I know the Master MOS contains everything except the sprite routines and editor. These are available as a separate file on the Welcome disc that needs to be loaded into sideways RAM.
Lardo Boffin wrote:
Tue Apr 02, 2019 9:07 am
The card is 13MB scanned at 250DPI.
The file size can often be reduced dramatically by scanning in black+white or even better in 1-bit monochrome (often called 'text' or 'line-art' mode in scanner software) and saving to a lossless format such as PNG.

I usually scan text documents at 600 DPI mono and they come out at a few hundred K per page.

Failing that the scans could always be uploaded to a file sharing site like DropBox.

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 10:38 am
by flaxcottage
That is brilliant quality. =D> =D>

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 12:03 pm
by Lardo Boffin
dv8 wrote:
Tue Apr 02, 2019 10:22 am
Lardo Boffin wrote:
Tue Apr 02, 2019 9:07 am
The card is 13MB scanned at 250DPI.
The file size can often be reduced dramatically by scanning in black+white or even better in 1-bit monochrome (often called 'text' or 'line-art' mode in scanner software) and saving to a lossless format such as PNG.

I usually scan text documents at 600 DPI mono and they come out at a few hundred K per page.

Failing that the scans could always be uploaded to a file sharing site like DropBox.
I only have a cheap and cheerful scanner but here goes. If these are not good enough I can re-do and put them on Dropbox or similar.

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 12:15 pm
by dv8
Lardo Boffin wrote:
Tue Apr 02, 2019 12:03 pm
I only have a cheap and cheerful scanner but here goes.
Perfect, thanks.
I should be able to get the PDF done later today.

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 2:30 pm
by Lardo Boffin
For completeness here is the key strip.

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 4:44 pm
by dv8
I've now added PDFs for the Reference Card and keystrip to the opening post. Thanks to Lardo for the scans.

Lurkio has also found an error on page 16 of the main guide. I'll leave it a day or two to see if any other errors are discovered and then reissue a corrected PDF.

Re: Acorn Graphics Extension ROM User Guide

Posted: Tue Apr 02, 2019 8:27 pm
by Lardo Boffin
Nice PDFs! Top stuff. =D>

Re: Acorn Graphics Extension ROM User Guide

Posted: Fri Apr 05, 2019 12:41 pm
by dv8
A corrected version of the main user guide has now been added to the opening post.

Re: Acorn Graphics Extension ROM User Guide

Posted: Thu Apr 11, 2019 12:56 pm
by pixelblip
Thank you all of you for your brilliant effort. Much easier to read than the txt version.
This rom is so awesome with so many shades and colours. A lot of life left in it yet!

Re: Acorn Graphics Extension ROM (GXR) User Guide

Posted: Thu Jan 23, 2020 9:35 pm
by elkrepair
Hi.

I have a Graphics ROM, but when I type *HELP it doesn't appear. Also, when I type *GXR the Beeb just hangs.

I guess the ROM has gone to the great silicon repository in the sky. :(

Re: Acorn Graphics Extension ROM (GXR) User Guide

Posted: Thu Jan 23, 2020 11:06 pm
by dv8
elkrepair wrote:
Thu Jan 23, 2020 9:35 pm
I have a Graphics ROM, but when I type *HELP it doesn't appear. Also, when I type *GXR the Beeb just hangs.
It might be the Computer Concepts Graphics ROM rather than the Acorn GXR.

Try entering *FX162 then *HELP. If it's the CC ROM it will be listed as GRAPHICS EXTENSION 2.09

*HELP GRAPHICS will then show a list of supported commands.

Re: Acorn Graphics Extension ROM (GXR) User Guide

Posted: Sun Jan 26, 2020 11:49 pm
by elkrepair
Yup, that did it, and that's exactly what appeared. Many thanks.

I can't find a manual for it though. Does anyone know of a link please?

Re: Acorn Graphics Extension ROM (GXR) User Guide

Posted: Mon Jan 27, 2020 12:10 am
by dv8
elkrepair wrote:
Sun Jan 26, 2020 11:49 pm
I can't find a manual for it though. Does anyone know of a link please?
I couldn't find one either so I've scanned my copy of it and am currently putting together a remastered PDF.

Re: Acorn Graphics Extension ROM (GXR) User Guide

Posted: Mon Jan 27, 2020 1:01 am
by jgharston
dv8 wrote:
Thu Jan 23, 2020 11:06 pm
elkrepair wrote:
Thu Jan 23, 2020 9:35 pm
I have a Graphics ROM, but when I type *HELP it doesn't appear. Also, when I type *GXR the Beeb just hangs.
It might be the Computer Concepts Graphics ROM rather than the Acorn GXR.

Try entering *FX162 then *HELP. If it's the CC ROM it will be listed as GRAPHICS EXTENSION 2.09

*HELP GRAPHICS will then show a list of supported commands.
Also, the graphics extension ROMs default to disabled or enabled depending on if the ROM slot they are in is odd or even. Try swapping the GXR ROM with the one adjacent to it.

Re: Acorn Graphics Extension ROM (GXR) User Guide

Posted: Mon Jan 27, 2020 10:00 am
by dv8
jgharston wrote:
Mon Jan 27, 2020 1:01 am
Also, the graphics extension ROMs default to disabled or enabled depending on if the ROM slot they are in is odd or even. Try swapping the GXR ROM with the one adjacent to it.
That's true for the Acorn GXR. For the CC Graphics ROM, versions 1.xx are enabled by default, versions 2.xx are disabled.

The telltale sign that elkrepair has the CC ROM is the fact there was no output from *HELP.
The Acorn GXR still responds to *HELP when disabled.

Re: Acorn Graphics Extension ROM (GXR) User Guide

Posted: Mon Jan 27, 2020 7:14 pm
by elkrepair
Yup, defo the CC Graphics ROM.

I did as DV8 explained and everything behaved as described.

Until I see a manual, the only way to use the commands within a program is to use OSCLI, which isn't great. I'm hoping the manual explains PLOT commands similar to the Acorn GXR.

Re: Acorn Graphics Extension ROM (GXR) User Guide

Posted: Mon Feb 03, 2020 8:05 pm
by flaxcottage
There is a low quality scan here but the commands are visible - http://www.flaxcottage.com/gxr/AcornSoftGFX.zip

I found this somewhere on the internet and just hoarded it. I am a bit of a magpie that way. :lol:

Re: Acorn Graphics Extension ROM (GXR) User Guide [Remastered PDF]

Posted: Fri May 29, 2020 3:35 pm
by dv8
I've uploaded a new zip file (containing ROMs and disc images) to the top post.
(The PDFs have not been updated).

Changes:
  • added both Model B and B+ versions of the GXR.
  • disc images now also include these ROM files.
  • sprite programs split off onto their own disc image.
  • sprite disc image includes Master Sprite ROM.
  • discs now have a menu and are bootable with Shift+Break.

Re: Acorn Graphics Extension ROM (GXR) User Guide [Remastered PDF]

Posted: Fri May 29, 2020 7:40 pm
by mlouka
Nice. Thanks for your effort.
dv8 wrote:
Fri May 29, 2020 3:35 pm
I've uploaded a new zip file (containing ROMs and disc images) to the top post.

Re: Acorn Graphics Extension ROM (GXR) User Guide [Remastered PDF]

Posted: Sat May 30, 2020 11:41 am
by jregel
Really good job. Thanks for contributing this.

Re: Acorn Graphics Extension ROM (GXR) User Guide [Remastered PDF]

Posted: Sun May 31, 2020 8:29 pm
by pixelblip
Thank you dv8. The Graphics Extension Rom rocks.