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Recipes contain bits and pieces of hardware-related knowledge, but these bits feel sparse. I've been wanting to consolidate hardware- related documentation for a while, but always fell at odds with the recipes organisation. We don't have recipes anymore, just a /doc/hw section that contains hardware-related documentation which often translate to precise instructions to run Collapse OS on a specific machine. With this new organisation, I hope to end up with a better, more solid documentation.
11 lines
295 B
Plaintext
11 lines
295 B
Plaintext
: VDP$
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9 0 DO _idat I 2 * + @ _ctl LOOP _blank
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( palettes )
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0xc000 _ctl
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( BG ) 1 _zero 0x3f _data 14 _zero
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( sprite, inverted colors ) 0x3f _data 15 _zero
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0x4000 _ctl 0x5e 0 DO ~FNT I 7 * + _sfont LOOP
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0 XYPOS !
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( bit 6, enable display, bit 7, ?? ) 0x81c0 _ctl
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;
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