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cortex-A A8,A9,A15 的Instruction Cycle Timing 是完全相同的吗

大家好,

我在A15上编写汇编,发现A8 和A9 Technical Reference Manual 中有一章是将Instruction Cycle Timing,但是在A15的Technical Reference Manual 中没有找到,想问下A8,A9,A15 的ARM指令集的 Instruction Cycle Timing 是一样的吗?

另外,关于neon的 Instruction Cycle Timing 我也只在A8手册Technical Reference Manual 中看到,A8,A9,A15 的neon 指令集的Instruction Cycle Timing也是一样的吗?