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Hi Arvind, > How do I find out what the default mcpu is while compiling with > arm-elf-gcc/xscale-elf-gcc? You could add "-v" to the command line and look at which architecture string is defined. For arm-elf-gcc you will probably see something like this: -D__ARM_ARCH_4T__ Whereas for xscale-elf-gcc you will see: -D__ARM_ARCH_5TE__ and also: -D__XSCALE__ Cheers Nick
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