AMOXOR.W

Atomic XOR Word

AMOXOR.W rd, rs2, (rs1)

Atomically performs bitwise XOR on a word in memory.

Details

AMOXOR.W atomically loads a word, XORs it with rs2, and stores the result back.

Pseudocode Operation

temp = M[R[rs1]]; M[R[rs1]] = temp ^ R[rs2]; R[rd] = temp;

Example

AMOXOR.W x10, x11, (x12)

Encoding

Binary Layout
00100
31:27
aq
26
rl
25
rs2
24:20
rs1
19:15
010
14:12
rd
11:7
0101111
6:0
 
Format R-Type (Atomic)
Opcode 0x2F
Extension A

Operands

  • rd
    Dest (Old Value)
  • rs2
    Operand
  • rs1
    Address