ror64(9)

✨ ror64 💫

ok so real talk, bestie — you're looking at ror64(9) from the Kernel API Manual, and honestly? she's iconic. tiny page, huge personality. let's get into it 🎀

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🌸 NAME 🌸

ror64 — rotate a 64-bit value right 🌀

like, you take a 64-bit number and you spin it to the right. no cap, that's the whole gig.

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🦋 SYNOPSIS 🦋

__u64 ror64 (__u64 word , unsigned int shift );

look at her. so clean. so composed. the way that signature just sits there 💅

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👑 ARGUMENTS 👑

• word — the value to rotate. yes queen, this is the thing you're spinning. it's a __u64, so it's a whole 64 bits of main character energy 🔥
• shift — bits to roll. an unsigned int telling you how far to the right we're going. lowkey the direction-setter of the whole operation 🌀

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💖 SEE ALSO 💖

the girlies she runs with — all of these live in the Kernel file ./include/linux/bitops.h, iykyk:

• rol64(9)
• rol32(9)
• ror32(9)
• rol16(9)
• ror16(9)
• rol8(9)
• ror8(9)
• sign_extend32(9)
• sign_extend64(9)
• get_count_order_long(9)
• parity8(9)
• __ffs64(9)
• fns(9)
• assign_bit(9)
• __ptr_set_bit(9)
• __ptr_clear_bit(9)
• __ptr_test_bit(9)

fr fr that's the whole friend group right there 🫶

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💀 reminder bestie: this is ror64, not rol64. right, not left. don't mix up the direction or it's giving "I read the synopsis and nothing else" 🙈

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and that's the page!! sourced from ./include/linux, dated October 2026, in this little ror64(9) corner of the universe ⭐ go rotate something right, bestie — you're gonna slay 💅💜