Screenshots

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4thRock
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Re: Screenshots

Post by 4thRock »

kolbeck wrote:
Fri Jul 31, 2020 8:29 am
Not completely true - take a look at https://spectrumcomputing.co.uk/entry/32034 - it generates a 320x240 display on ZX81 - also there a few other demos that goes beyond the 256pixels width. I know it's really edge cases, just to get the facts correct :-)
Thanks for the info it's important. On this case the .scr is just cropping the image, another format would be better (as Einar mentioned).
All these titles are marked as ZX81 Hi-res: WRX , right ?

Meanwhile, you might have noticed that ZX80 and ZX81 titles now display a white border by default.
There's also progress on displaying different border colours (using the existing .SCR and .GIFs), yet more work is needed.
This so that you guys know that this discussion is helpful and things are progressing in the background. ;)
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Einar Saukas
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Re: Screenshots

Post by Einar Saukas »

4thRock wrote:
Fri Jul 31, 2020 12:57 pm
There's also progress on displaying different border colours (using the existing .SCR and .GIFs), yet more work is needed.
Currently all screenshots have black border by default, except ZX80/ZX81 screenshots that have white border by default.

However this information is configurable. For instance, the running screen for 10 OTHELLO has blue border, the running screens for Ad Lunam Plus have white border.

If anyone notices anything else that needs fixing, please help to fill this spreadsheet!
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4thRock
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Re: Screenshots

Post by 4thRock »

Added a few more games to the spreadsheet! :D
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Einar Saukas
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Re: Screenshots

Post by Einar Saukas »

4thRock wrote:
Sat Aug 01, 2020 4:56 pm
Added a few more games to the spreadsheet! :D
Thank you!
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kolbeck
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Re: Screenshots

Post by kolbeck »

First attempt at converting ZX81 screen dump in BMP to ASCII / ZX81 Character set.

Left is the ASCII (Unicode) Rendering, and Right is the BMP as produced by EightyOne. There are only a few characters not easily available for printing, but that's not important. The program also produces a 768 bytes file, containing values from 0-192 representing the ZX81 characters found.

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/Thomas
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https://zxinfo.dk - another ZXDB frontend
https://api.zxinfo.dk/ - ZXDB API for developers

4thRock
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Re: Screenshots

Post by 4thRock »

Found an interesting reference to timings of non-interlaced PAL:
http://blog.retroleum.co.uk/electronics ... -voltages/

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