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关于arm架构的一些核心文件，

armv与armo的区别，

跟arm26和arm文件夹的区别有点相同。

armo代表的是26位arm处理器。

armv代表的是32位arm处理器。

armo and armv
Throughout the ARM architecture core directories you will find both
-armv and -armo versions of some files.These indicate variants for the
ARM processors 26-bit mode and 32-bit mode.The 26-bit mode is in
the process of being phased out of ARM CPU designs and is only used
in a few early machines which predate the existence of the 32-bit
mode (e.g. the A5000, which has an ARM3 CPU).
The suffixes have the following meaning:
• armo is for 26-bit stuff;
• armv is for 32-bit stuff.