OPER_REG_OP_ORDER   43 src/ia32/disasm-ia32.cc OPER_REG_OP_ORDER
OPER_REG_OP_ORDER   45 src/x64/disasm-x64.cc OPER_REG_OP_ORDER = 2,  // Operand destination, register source.
OPER_REG_OP_ORDER   49 src/x64/disasm-x64.cc BYTE_OPER_REG_OP_ORDER = OPER_REG_OP_ORDER | BYTE_SIZE_OPERAND_FLAG