_logical-with-negate.adoc

Logical with negate

RV32	RV64	Mnemonic	Instruction
✓	✓	andn rd, rs1, rs2	[insns-andn]
✓	✓	orn rd, rs1, rs2	[insns-orn]
✓	✓	xnor rd, rs1, rs2	[insns-xnor]

Imp	Implementation Hint The Logical with Negate instructions can be implemented by inverting the rs2 inputs to the base-required AND, OR, and XOR logic instructions. In some implementations, the inverter on rs2 used for subtraction can be reused for this purpose.