Monday, August 29, 2022

Vic-20 Hi-Res BASIC extension progress

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  Shape operations are functional, and work has begun on leveraging BASIC keyword extensions (borrowing from my own HIRES for C64 ). 4UPART ...
Monday, August 8, 2022

Knight vs. Dragon prototype on Commodore 128

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My son Ben (age 9) designed all the graphics, background and colors.  He edited the background screen strictly with inverse spaces.  Sprites...
Sunday, August 7, 2022

Left hand keyboard template and AutoHotKey

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   Back in the day (decades ago), I purchased a Matias Half Keyboard  (USB) at a computer show because it was so cool.   My plan was to mous...
Sunday, July 17, 2022

Vic-20 HI-RES in progress - Memory Layout

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Vic-20 Graphics Memory Layout The Vic-20 doesn't have a native graphics mode.  But it can use a character set from onboard RAM, and doub...
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Saturday, July 16, 2022

Extending C64 BASIC Part Three - Poke multiple bytes

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This example accepts one address value, followed by multiple byte values appended to the SYS command on Commodore 64.   This could be useful...
Thursday, July 14, 2022

Extending C64 BASIC Part Two - Parse 16-bit unsigned integer

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This example parses a 16-bit unsigned integer appended to the SYS command on Commodore 64.   The number is added to the jiffy clock as the a...
Saturday, June 11, 2022

Slides for C64

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Forget PowerPoint or Google Slides or Apple Keynote.   Here is a newer solution for the Commodore 64.   Simply use DATA statements in BASIC ...