ARM: Introduction to ARM: Logical Instructions

by David Thomas on

Logical Instructions

<operation>{cond}{S} Rd,Rn,Operand2

<operation>

  • ANDlogical AND
    • Rd := Rn AND Operand2
  • EORExclusive OR
    • Rd := Rn EOR Operand2
  • ORRlogical OR
    • Rd := Rn OR Operand2
  • BICBitwise Clear
    • Rd := Rn AND NOT Operand2

Examples

  • AND r8, r7, r2
    • R8 = R7 & R2
  • ORR r11, r11, #1
    • R11 |= 1
  • BIC r11, r11, #1
    • R11 &= ~1
  • EOR r11, r11, #1
    • R11 ^= 1

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