slide 12 of 23

Unpartitioned Ops with Correction

• Use ordinary 32-bit/64-bit op, but correct for field interactions
• For 4 8-bit fields in 32-bit registers,

  return(x + y);
  
  t = ((x & 0x7f7f7f7f) + (y & 0x7f7f7f7f));
  return(t ^ ((x ^ y) & 0x80808080));