GENERIC_OPCODE
val = reg_encode(reg, GENERIC_OPCODE, opcode);
[GENERIC_OPCODE] = GENMASK(4, 0),
[GENERIC_OPCODE] = GENMASK(4, 0),
[GENERIC_OPCODE] = GENMASK(4, 0),
[GENERIC_OPCODE] = GENMASK(4, 0),
[GENERIC_OPCODE] = GENMASK(4, 0),
[GENERIC_OPCODE] = GENMASK(4, 0),
[GENERIC_OPCODE] = GENMASK(4, 0),