AMOMINU.D

Atomic Min Unsigned Doubleword

AMOMINU.D rd, rs2, (rs1)

Atomically updates memory with the minimum of the memory value and register value (Unsigned 64-bit).

Details

AMOMINU.D performs an atomic unsigned minimum doubleword operation (RV64 only).

Pseudocode Operation

temp = M[R[rs1]]; M[R[rs1]] = min_u(temp, R[rs2]); R[rd] = temp;

Example

AMOMINU.D t0, a1, a0

Encoding

Binary Layout
11000
31:27
aq
26
rl
25
rs2
24:20
rs1
19:15
011
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