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Altera_Forum's avatar
Altera_Forum
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21 years ago

Unnecessary instructions

Hello, it's my first post. I have question about GCC generated code. We can find several unnecessary instructions. --- sample code --- unsigned short uh; uh = IORD_16DIRECT(base,ofst)...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Thank you, Scott.

But I wonder about future compatibility. Because we can find following sentence on Software Developer's Handbook.

page 7-7 : "Future Nios II core may use bit 31 for other purposes."

So I have hesitation about bit 31 method.