From the CPU's point of view, how does it distinguish an assembly code is an ARM code or a Thumb code?
Is there some signal bit represent the code is ARM or Thumb code, this is just my guess.
How to understand SDIV instruction availability?
Hi,
When I read Thumb-2 instruction manual, it is not clear to me about SDIV availability. Especially I do not understand the last line "are not available in ARM state."
Could you explain it to me?
Thanks,
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