Renesas TM V.3.20A Spécifications Page 102

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Renesas Technology, Tools FAQs
Last Updated: July 21, 2000
Document Number: 01051273_e
Q.
When NC30 compiles a signed variable left-shift statement, it uses a logical shift instruction instead of an arithmetic shift
instruction. Why is that?
A.
In the M16C instruction set, there are two left-shift instructions: arithmetic shift instruction (SHA) and logical shift instruction
(SHL). Both instructions bring the same result. Therefore, NC30 uses the "SHL" instruction.
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