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collapseos/arch/z80/sms/blk/603
Virgil Dupras 7001446212 Complete overhaul of recipes
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.
2020-10-30 20:39:39 -04:00

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: XYPOS [ VDP_MEM LITN ] ;
CODE _ctl ( a -- sends LSB then MSB )
HL POP, chkPS,
A L LDrr, VDP_CTLPORT OUTiA,
A H LDrr, VDP_CTLPORT OUTiA,
;CODE
CODE _data
HL POP, chkPS,
A L LDrr, VDP_DATAPORT OUTiA,
;CODE