The root cause turns out explicitly to be because MMUs are so valuable: without one, you can’t run Linux, BSD, or Mach. Thus, when ARM split their IP portfolio into the A, R, and M-series cores, the low-cost M-series cores were forbidden from having an MMU to prevent price erosion of their high-end A-series cores. Instead, a proprietary hack known as the “MPU” was introduced that gives some memory security, but without an easy path to benefits such as swap memory and address space relocation.
Трамп высказался о важных целях для ударов в Иране02:32，这一点在新收录的资料中也有详细论述
，更多细节参见新收录的资料
Standard Digital，推荐阅读新收录的资料获取更多信息
21:31, 2 марта 2026Ценности
首先是语言。挪威的船长考试全部使用挪威语，还包括大量航海术语。她花了很长时间准备，几乎每天都在背单词。