QasmQobjInstruction

class QasmQobjInstruction(name, params=None, qubits=None, register=None, memory=None, condition=None, conditional=None, label=None, mask=None, relation=None, val=None, snapshot_type=None)[source]

A class representing a single instruction in an QasmQobj Experiment.

Instatiate a new QasmQobjInstruction object.

Parameters

  • name (str) – The name of the instruction

  • params (list) – The list of parameters for the gate

  • qubits (list) – A list of int representing the qubits the instruction operates on

  • register (list) – If a measure instruction this is a list of int containing the list of register slots in which to store the measurement results (must be the same length as qubits). If a bfunc instruction this is a single int of the register slot in which to store the result.

  • memory (list) – If a measure instruction this is a list of int containing the list of memory slots to store the measurement results in (must be the same length as qubits). If a bfunc instruction this is a single int of the memory slot to store the boolean function result in.

  • condition (tuple) – A tuple of the form (int, int) where the first int is the control register and the second int is the control value if the gate has a condition.

  • conditional (int) – The register index of the condition

  • label (str) – An optional label assigned to the instruction

  • mask (int) – For a bfunc instruction the hex value which is applied as an AND to the register bits.

  • relation (str) – Relational operator for comparing the masked register to the val kwarg. Can be either == (equals) or != (not equals).

  • val (int) – Value to which to compare the masked register. In other words, the output of the function is (register AND mask)

  • snapshot_type (str) – For snapshot instructions the type of snapshot to use

Methods

QasmQobjInstruction.from_dict(data)

Create a new QasmQobjInstruction object from a dictionary.

QasmQobjInstruction.to_dict()

Return a dictionary format representation of the Instruction.