# Function core::arch::arm::dsp::__smulwt

source · [−]

    pub unsafe fn __smulwt(a: int16x2_t, b: i32) -> i32

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on ARM only.
Expand description

Insert a SMULWT instruction

Multiplies the 32-bit signed first operand with the high halfword (as a 16-bit signed integer) of the second operand. Return the top 32 bits of the 48-bit product