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collapseos
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Mirror of CollapseOS
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collapseos/arch/z80/sms/blk/613

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  1. : _status

  2.     1 _THA! ( output, high/unselected )

  3.     _D1@ 0x3f AND ( low 6 bits are good )

  4. ( Start and A are returned when TH is selected, in bits 5 and

  5.   4. Well get them, left-shift them and integrate them to B. )

  6.     0 _THA! ( output, low/selected )

  7.     _D1@ 0x30 AND 2 LSHIFT OR ;