izaya
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collapseos
mirror of https://github.com/hsoft/collapseos.git
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Mirror of CollapseOS
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collapseos/blk/624

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  1. CODE _blank ( this is way too slow in Forth )

  2.     A XORr, VDP_CTLPORT OUTnA,

  3.     A 0x40 LDrn, VDP_CTLPORT OUTnA,

  4.     HL 0x4000 LDddnn,

  5.     BEGIN,

  6.         A XORr, VDP_DATAPORT OUTnA,

  7.         HL DECss, HLZ,

  8.     JRNZ, AGAIN,

  9. ;CODE