Function core::arch::arm::__qsub8

pub unsafe fn __qsub8(a: int8x4_t, b: int8x4_t) -> int8x4_t

🔬 This is a nightly-only experimental API. (stdsimd #48556)

This is supported on ARM only.

饱和两个 8 位整数减法

返回与之等效的 8 位有符号

res[0] = a[0] - b[0] res[1] = a[1] - b[1] res[2] = a[2] - b[2] res[3] = a[3] - b[3]