B Extension

12 instructions in the B extension.

• andn — AND with inverted operand
• clmul — Carry-less multiply (low-part)
• clmulh — Carry-less multiply (high-part)
• orn — OR with inverted operand
• rev8 — Byte-reverse register (RV64 encoding)
• rol — Rotate left (Register)
• rolw — Rotate left word (Register) 64
• ror — Rotate right (Register)
• rori — Rotate right (Immediate)
• roriw — Rotate right word (Immediate) 64
• rorw — Rotate right word (Register) 64
• xnor — Exclusive NOR