Acorn Graphics Extension ROM User Guide

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dv8
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Acorn Graphics Extension ROM User Guide

Post by dv8 » Mon Apr 01, 2019 9:29 pm

Attached is a remastered PDF of the Acorn Graphics Extension ROM user guide.

In the zip file is the GXR ROM and an SSD disc image containing the listings from the manual and extra programs from a cassette originally supplied with the ROM.

If anyone has a copy of the GXR Reference Card that was also part of the package I would appreciate it if you could scan it or take a high res photo so I can make a PDF of that too.
EDIT: Added Reference Card and keystrip.

Graphics_Extension_ROM.pdf
(266.73 KiB) Downloaded 14 times
Graphics_Extension_ROM_Reference.pdf
(46.54 KiB) Downloaded 11 times
Graphics_Extension_ROM_KeyStrip.pdf
(14.67 KiB) Downloaded 9 times
Graphics_Extension_ROM.zip
(26.95 KiB) Downloaded 17 times
Last edited by dv8 on Fri Apr 05, 2019 11:36 am, edited 2 times in total.

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jms2
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Re: Acorn Graphics Extension ROM User Guide

Post by jms2 » Mon Apr 01, 2019 10:11 pm

That looks terrific! It must have taken ages to get it that good!

I may have the card.

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lurkio
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Re: Acorn Graphics Extension ROM User Guide

Post by lurkio » Mon Apr 01, 2019 10:37 pm

dv8 wrote:
Mon Apr 01, 2019 9:29 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:
Last edited by lurkio on Mon Apr 01, 2019 10:49 pm, edited 2 times in total.

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Lardo Boffin
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Re: Acorn Graphics Extension ROM User Guide

Post by Lardo Boffin » Tue Apr 02, 2019 6:22 am

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.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet, NULA

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tricky
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Re: Acorn Graphics Extension ROM User Guide

Post by tricky » Tue Apr 02, 2019 7:32 am

Thanks for these, does it happen to mention any differences between this and the built in version on the master?

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Lardo Boffin
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Re: Acorn Graphics Extension ROM User Guide

Post by Lardo Boffin » Tue Apr 02, 2019 8:07 am

The card is 13MB scanned at 250DPI.
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet, NULA

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dv8
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Re: Acorn Graphics Extension ROM User Guide

Post by dv8 » Tue Apr 02, 2019 9:22 am

jms2 wrote:
Mon Apr 01, 2019 10:11 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 7:32 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 8:07 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.

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flaxcottage
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Re: Acorn Graphics Extension ROM User Guide

Post by flaxcottage » Tue Apr 02, 2019 9:38 am

That is brilliant quality. =D> =D>
- John

Image

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Lardo Boffin
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Re: Acorn Graphics Extension ROM User Guide

Post by Lardo Boffin » Tue Apr 02, 2019 11:03 am

dv8 wrote:
Tue Apr 02, 2019 9:22 am
Lardo Boffin wrote:
Tue Apr 02, 2019 8:07 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.
Attachments
GXR02.zip
Inside
(265.48 KiB) Downloaded 11 times
GXR_01.zip
Front and back cover
(144.29 KiB) Downloaded 11 times
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet, NULA

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dv8
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Re: Acorn Graphics Extension ROM User Guide

Post by dv8 » Tue Apr 02, 2019 11:15 am

Lardo Boffin wrote:
Tue Apr 02, 2019 11:03 am
I only have a cheap and cheerful scanner but here goes.
Perfect, thanks.
I should be able to get the PDF done later today.

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Lardo Boffin
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Re: Acorn Graphics Extension ROM User Guide

Post by Lardo Boffin » Tue Apr 02, 2019 1:30 pm

For completeness here is the key strip.
Attachments
KeyStrip.zip
(57.14 KiB) Downloaded 10 times
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet, NULA

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dv8
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Re: Acorn Graphics Extension ROM User Guide

Post by dv8 » Tue Apr 02, 2019 3:44 pm

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.

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Lardo Boffin
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Re: Acorn Graphics Extension ROM User Guide

Post by Lardo Boffin » Tue Apr 02, 2019 7:27 pm

Nice PDFs! Top stuff. =D>
BBC model B 32k issue 4, 16k sideways RAM, Watford 12 ROM board, Acorn 6502 coproc
BBC model B 32k issue 7, turboMMC, Opus Challenger 3 512k, Pi 3 coproc
USA Model B
BBC Master, Datacentre + HDD, pi co-proc, econet, NULA

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dv8
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Re: Acorn Graphics Extension ROM User Guide

Post by dv8 » Fri Apr 05, 2019 11:41 am

A corrected version of the main user guide has now been added to the opening post.

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pixelblip
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Re: Acorn Graphics Extension ROM User Guide

Post by pixelblip » Thu Apr 11, 2019 11:56 am

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!
Last edited by pixelblip on Thu Apr 11, 2019 11:57 am, edited 1 time in total.

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