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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.
16 lines
460 B
Plaintext
16 lines
460 B
Plaintext
CODE _status
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A 0b11111101 LDri, ( TH output, unselected )
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PAD_CTLPORT OUTiA,
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PAD_D1PORT INAi,
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0x3f ANDi, ( low 6 bits are good )
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H A LDrr, ( let's store them )
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( Start and A are returned when TH is selected, in bits 5 and
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4. Well get them, left-shift them and integrate them to B. )
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A 0b11011101 LDri, ( TH output, selected )
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PAD_CTLPORT OUTiA,
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PAD_D1PORT INAi,
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0b00110000 ANDi,
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A SLA, A SLA, H ORr,
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PUSHA,
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;CODE
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