Function mask

Source/astcenc_vecmathlib_rvv_n.h:322–325

* @brief Return a N-bit mask code indicating mask status. * * bit0 = lane 0 */

 * bit0 = lane 0
 */
ASTCENC_SIMD_INLINE uint64_t mask(vmask a)
{
	return __riscv_vmv_x(__riscv_vreinterpret_u64m1(a.m)) & (~(uint64_t)0 >> (64-vmask::vl()));
}
#else
/* only used for in the current unit-tests */
#endif