convert_low_i32x4_s: Wasm SIMD conversion instruction

Try it

(module
  (import "console" "log" (func $log (param f64)))
  (func $main
    v128.const i32x4 0x3 0x3a 0xa9 0xff

    f64x2.convert_low_i32x4_s
    f64x2.extract_lane 1
    call $log ;; log the result
  )
  (start $main)
)

WebAssembly.instantiateStreaming(fetch("{%wasm-url%}"), { console });

Syntax

value_type.convert_low_i32x4_s

value_type

The type of value the instruction is being run on. The following v128 value interpretations support convert_low_i32x4_s:

f64x2

convert_low_i32x4_s

The convert_low_i32x4_s instruction. Must always be included after the value_type and a period (.).

Type

[input] -> [output]

input: The input v128 i32x4 value interpretation.
output: The output v128 f64x2 value interpretation. The first two values of the input i32x4 are included in the output f64x2.