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/arch Architecture specific files
+ /arc Files generic to ARC architecture
+ /cpu CPU specific files
+ /arc700 Files specific to ARC 700 CPUs
+ /lib Architecture specific library files
/arm Files generic to ARM architecture
/cpu CPU specific files
/arm720t Files specific to ARM 720 CPUs
/mips Files generic to MIPS architecture
/cpu CPU specific files
/mips32 Files specific to MIPS32 CPUs
+ /mips64 Files specific to MIPS64 CPUs
/lib Architecture specific library files
/nds32 Files generic to NDS32 architecture
/cpu CPU specific files