the piece of code comes from linux kernel source code. What exactly does the $~3 mean? I konw $3 means an immediate number, but what is it with a leading symbol ~ ?
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the piece of code comes from linux kernel source code. What exactly does the $~3 mean? I konw $3 means an immediate number, but what is it with a leading symbol ~ ?
Bitwise complement. So anding with ~3 means clearing the two lowest bits.