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wolfboyft

LR35902 replacement routine for Z80's sbc hl, bc

Jul 30th, 2016
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  1. SbcHlBc::
  2.     push bc
  3.     push af
  4.     ld a, b
  5.     cpl
  6.     ld b, a
  7.     ld a, c
  8.     cpl
  9.     ld c, a
  10.     inc bc
  11.     call c, .carry
  12.     pop af
  13.     add hl, bc
  14.     pop bc
  15.     ret
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