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Re: QL Art

Posted: Tue Aug 31, 2021 11:23 am
by BSJR
TMD2003 wrote:
BSJR wrote:Comparing the two images there appear five lines of rubbish at the start minus an offset of 32 pixels.
I guess some header info got translated as well, so conversion should start at +5x256 -32 pixels, in bytes for the Tiff.
That's what I'd assumed - but then I'd also assumed that the four values in the SELECT loop towards the end of the main procedure had been chosen to account for that.
I had to check the S*Basic Reference Manual for this unusual use of SCROLL & PAN in this _bas, acting as file pointers. That may not be valid for the ROM you are using. If TK2 is present this can be replaced with BGET #3,n.

BSJR

Re: QL Art

Posted: Tue Aug 31, 2021 10:05 pm
by TMD2003
BSJR wrote:I had to check the S*Basic Reference Manual for this unusual use of SCROLL & PAN in this _bas, acting as file pointers. That may not be valid for the ROM you are using. If TK2 is present this can be replaced with BGET #3,n.
I was wondering what was going on with those. I could see they were acting on the file (SCROLL #3 and PAN #3), but how that was made to work is well beyond me.

And to think that POKE_L 167722,base was considered "The Wild West"...

Re: QL Art

Posted: Tue Aug 31, 2021 11:00 pm
by dilwyn
TMD2003 wrote:
BSJR wrote:I had to check the S*Basic Reference Manual for this unusual use of SCROLL & PAN in this _bas, acting as file pointers. That may not be valid for the ROM you are using. If TK2 is present this can be replaced with BGET #3,n.
I was wondering what was going on with those. I could see they were acting on the file (SCROLL #3 and PAN #3), but how that was made to work is well beyond me.

And to think that POKE_L 167722,base was considered "The Wild West"...
They are at least documented by Simon Goodwin in his ROM Bugs articles from QL World: http://www.dilwyn.me.uk/docs/basic/rombugs.pdf

Re: QL Art

Posted: Wed Apr 24, 2024 8:10 am
by QLvsJAGUAR
Andrew wrote: Sat Aug 28, 2021 12:12 pm MISTERY SOLVED!

The border is not yellow - it is an animated dashed red and green border! So when you take a photo of a CRT image it will look yellow :D
The image is from QL DEMO program, attached below.
The program has the following info embedded :
v 7QL Demonstration 1.00 Sinclair Research Ltd.
Hardware by Jon Eproms by Eric
For those who ever wanted an original Sinclair QL EPROM expansion card with their "QL Demonstration 1.00", there's currently a set on ebay (ending 2024-04-24):
https://www.ebay.co.uk/itm/235525644258

BTW: I'm not the seller nor related to him.