PPC_OPERAND_GPR
if ((operand->flags & PPC_OPERAND_GPR) != 0
{ 0x1f, 16, NULL, NULL, PPC_OPERAND_GPR },
{ 0x1f, 16, NULL, NULL, PPC_OPERAND_GPR | PPC_OPERAND_OPTIONAL },
{ 0x1f, 11, NULL, NULL, PPC_OPERAND_GPR },
{ 0x1f, 11, insert_rbx, NULL, PPC_OPERAND_GPR },
{ 0x1f, 11, NULL, NULL, PPC_OPERAND_GPR | PPC_OPERAND_OPTIONAL },
{ 0x1f, 6, NULL, NULL, PPC_OPERAND_GPR },
{ 0x1f, 21, NULL, NULL, PPC_OPERAND_GPR },
{ 0x1e, 21, NULL, NULL, PPC_OPERAND_GPR },
{ 0x1f, 21, NULL, NULL, PPC_OPERAND_GPR | PPC_OPERAND_OPTIONAL },
{ 0x1f, PPC_OPSHIFT_INV, insert_rx, extract_rx, PPC_OPERAND_GPR },
{ 0x1f, PPC_OPSHIFT_INV, insert_arx, extract_arx, PPC_OPERAND_GPR },
{ 0x1f, PPC_OPSHIFT_INV, insert_ry, extract_ry, PPC_OPERAND_GPR },
{ 0x1f, PPC_OPSHIFT_INV, insert_ary, extract_ary, PPC_OPERAND_GPR },