mvn

Vector Bitwise NOT

MVN <Vd>.<T>, <Vn>.<T>

Bitwise NOT of a vector.

Pseudocode Operation

for i = 0 to (vector_length - 1)
  Vd.bit[i] ← NOT Vn.bit[i];

Example

MVN v0.4s.T, v1.4s.T

Encoding

Binary Layout

01110

28:24

23:22

10000

21:17

00101

16:12

11:10

9:5

4:0

Format SIMD Two Register

Opcode 0x2E205800

Extension NEON (SIMD)

Operands

Vd
Destination SIMD/FP vector register
Vn
First source SIMD/FP vector register

Other forms of mvn

mvn Move NOT (A32)

Reference

View in Arm A64 ISA Reference ↗ Arm A64 ISA

Instruction Forms

Encoding	Instruction	ISA	Bit pattern
0x2E205800	MVN <Vd>.<T>, <Vn>.<T>	A64	0 \| Q \| 1 \| 01110 \| 00 \| 10000 \| 00101 \| 10 \| Rn \| Rd
0x2A2003E0	MVN <Wd>, <Wm>{, <shift> #<amount>}	A64	0 \| 01 \| 01010 \| shift \| 1 \| Rm \| imm6 \| 11111 \| Rd
0xAA2003E0	MVN <Xd>, <Xm>{, <shift> #<amount>}	A64	1 \| 01 \| 01010 \| shift \| 1 \| Rm \| imm6 \| 11111 \| Rd

Description

Bitwise NOT (vector). This instruction reads each vector element from the source SIMD&FP register, places the inverse of each value into a vector, and writes the vector to the destination SIMD&FP register. Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.

mvn