Bare-metal Raspberry Pi project that attaches to the Acorn TUBE interface and emulates many BBC Micro Co Processors
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Frame Buffer: POINT's offscreen check is not right #175
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BigEd closed 1 year ago
Running lovebug's program at https://stardot.org.uk/forums/viewtopic.php?f=2&t=27265 doesn't work in PIVDU 2 mode. (It's a Langton's Ant program.)
A fairly minimal test in native ARM which involves moving the graphics origin:
The POINT returns -1 which indicates off-screen, and that's wrong.