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 $99/153:   Default Input Device (0)

Kernal-Reference:

 CPX $99     : <A HREF="ROMF333.HTM">$F33C</A>
 LDA $99     : <A HREF="ROMF13E.HTM">$F13E</A> <A HREF="ROMF157.HTM">$F157</A>
 LDX $99     : <A HREF="ROME632.HTM">$E663</A>
 STA $99     : <A HREF="ROME5A0.HTM">$E5A6</A> <A HREF="ROMF04D.HTM">$F04D</A> <A HREF="ROMF20E.HTM">$F233</A> <A HREF="ROMF333.HTM">$F347</A>

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