[fpc-devel] ARM4 and THUMB instruction sets

Michael Schnell mschnell at lumino.de
Thu Oct 18 14:00:57 CEST 2007

> Even worse. Thumb is completely different instruction set with 
> different number of registers. Completely new code generator is needed 
> for thumb.
That is why no Linux Kernel for thumb code exists and thus the new "pure 
Thumb" Cortex M processors can't run Linux yet.


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