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6502 Subroutine To Return a Power of 2

/ Published in: Assembler
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  1. ;returns power of 2 for arg in accumulator
  2. pow2
  3.  tax
  4.  lda Pow2Tab,x
  5.  rts
  6.  
  7. Pow2Tab
  8.  .byte 1
  9.  .byte 2
  10.  .byte 4
  11.  .byte 8
  12.  .byte 16
  13.  .byte 32
  14.  .byte 64
  15.  .byte 128

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