FMV.W.X

Move Integer to Float

FMV.W.X rd, rs1

Moves the bit pattern of an integer register to a floating-point register.

Encoding

Binary Layout

111100000000

31:20

rs1

19:15

000

14:12

rd

11:7

1010011

6:0

 

Format I-Type (Float)

Opcode 0xF0000053

Extension F

Operands

• rd
  Dest (Float)
• rs1
  Source (Integer)

Example

FMV.W.X f1, x10

// Copy bits from x10 to f1.

Related

More in F

Reference

View in RISC-V Unprivileged ISA Specification ↗ RISC-V ISA Manual

Description

Moves bits from a floating-point register to an integer register (or vice versa) without conversion. The bit pattern is preserved exactly.

Operation

F[rd] = R[rs1];