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Re: ldrb vs ldrh in gcc-3.4.4 (ARM)


Richard,

Thanks a million. Maybe you could explain the difference of arm920t and arm9tdmi as well, please?


The arm9tdmi is the main 'core' of the CPU.  The arm920t is the core
plus the associated cache, mmu, and system registers.   Different models
all have substantially the same 'core' but may have different (or
missing) additional parts...

Thanks. So when I am using Freescale i.MX and Atmel AT91RM9200 which are both arm920t I rather use


	GCC_EXTRA_CONFIG="--with-float=soft --with-cpu=arm920t \
                          --enable-cxx-flags=-mcpu=arm920t"

instead of

	GCC_EXTRA_CONFIG="--with-float=soft --with-cpu=arm9tdmi \
                          --enable-cxx-flags=-mcpu=arm9tdmi"

when building the toolchain. Right?

--
Steven

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