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collapseos/recipes/ti84/blk/616

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( Requires KBD_MEM, KBD_PORT )
( gm -- pm, get pressed keys mask for group mask gm )
CODE _get
HL POP,
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chkPS,
DI,
A 0xff LDri,
KBD_PORT OUTiA,
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A L LDrr,
KBD_PORT OUTiA,
KBD_PORT INAi,
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EI,
L A LDrr, HL PUSH,
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;CODE