2 ms·
Most superscalar cores do macro-op fusion, including ARM and x86. They don't transition the fused op - it usually executes in one cycle (which is the point of
by pclmulqdq 4y ago
Most superscalar cores do macro-op fusion, including ARM and x86. They don't transition the fused op - it usually executes in one cycle (which is the point of the fusion) so you transition either before or after it.