simd

f64x2.sub

f64x2.sub SIMD vector operation.

simd0xFD 0xF1

Syntax

f64x2.sub

Stack Effect

SIMD lane operands -> SIMD result

Opcode

Hex: 0xFD 0xF1
Decimal: 253 241
Bytes: [0xfd, 0xf1]
Prefix: 0xFD SIMD extension space
Encoding: 0xFD 0xF1
Category: simd
Proposal: simd

Browser Support

Feature-detect runtime support before executing examples.

Validation Rules

Operands and result types must match the instruction signature.
The instruction must appear in a valid structured control context.

Common Mistakes

Using the instruction with the wrong operand type.
Forgetting that WAT validation is stack-typed.

Example

(func $example
  ;; f64x2.sub example
)