Head over to https://www.sandpile.org https://www.sandpile.org, and find VPTERNLOG on the 3-byte opcode page https://www.sandpile.org/x86/opc_3.htm https://www.

Head over to https://www.sandpile.org https://www.sandpile.org, and find VPTERNLOG on the 3-byte opcode page https://www.sandpile.org/x86/opc_3.htm https://www.sandpile.org/x86/opc_3.htm and you will not only see Intel's apparent past plan for the variants with byte and word masking (AVX512BITALG2), but also the links from the Ib operand to the ternary logic table page https://www.sandpile.org/x86/ternlog.htm https://www.sandpile.org/x86/ternlog.htm with all 256 cases.