quantify_scheduler.backends.zhinst.seqc_il_generator

Module Contents

Classes

SeqcInstructions	The sequencer enum type.
SeqcILGenerator	The Intermediate Sequencer Language Generator.

Functions

add_wait(→ int)	Add a wait instruction to the SeqcILGenerator with the specified delay.
add_play_wave(→ int)	Adds a playWave instruction to the
add_start_qa(→ int)	Adds a startQA instruction to the
add_execute_table_entry(→ int)	Adds an executeTableEntry instruction to
add_set_trigger(→ int)	Adds a setTrigger instruction to the seqc
declare_csv_waveform_variables(seqc_gen, device_name, ...)	Declares waveforms and links them to filenames of .csv files.
add_csv_waveform_variables(seqc_gen, device_serial, ...)	Adds wave variables in form of a

Attributes

logger
SEQC_INSTR_CLOCKS

logger

class SeqcInstructions

Bases: enum.Enum

The sequencer enum type.

NONE = ''

PLAY_WAVE = 'playWave'

SET_TRIGGER = 'setTrigger'

WAIT = 'wait'

WAIT_WAVE = 'waitWave'

ARM_INTEGRATION = 'AWG_INTEGRATION_ARM + AWG_INTEGRATION_TRIGGER + AWG_MONITOR_TRIGGER'

EXECUTE_TABLE_ENTRY = 'executeTableEntry'

START_QA = 'startQA'

SEQC_INSTR_CLOCKS: Dict[quantify_scheduler.backends.types.zhinst.DeviceType, Dict[SeqcInstructions, int]]

class SeqcILGenerator

Bases: object

The Intermediate Sequencer Language Generator.

This class acts a an assembler for the seqc programs which can be executed on the ZI AWG(s).

Creates a new instance of SeqcILGenerator.

_level: int

_variables: Dict[str, Tuple[str, Optional[str]]]

_program: List[Tuple[int, str]]

_declare_local(type_def: str, name: str) → None

Creates a new local variable.

Parameters

• type_def – The variable type definition.

• name – The variable name.

Raises

ValueError – Duplicate local variable error.

_assign_local(name: str, value: str) → None

Assign a value to a local variable.

Parameters

• name – The variable name.

• value – The new variable value.

Raises

ValueError – Undefined reference error.

_emit(operation: str) → None

Emits a new operation to the program.

Parameters

operation – The operation to append.

_begin_scope() → None

Indent a new scope level.

_end_scope() → None

Dedent the scope level.

Raises

ValueError – Scope level error.

declare_var(name: str, value: Optional[Union[str, int]] = None) → None

Creates a new variable of type var with a name and optionally its value.

Parameters

• name – The variable name.

• value (Optional[str]) – The variable value. (optional)

declare_wave(name: str, value: Optional[str] = None) → None

Creates a new variable of type wave with a name and optionally its value.

Parameters

• name – The variable name.

• value – The variable value. (optional)

assign_get_user_reg(name: str, index: int) → None

Assign the getUserReg function to a variable by name with a specific index.

Parameters

• name – The variable name.

• index – The register index.

assign_placeholder(name: str, size: int) → None

Assign a placeholder to a variable by name with a specific size.

Parameters

• name – The variable name.

• size – The size of the placeholder.

assign_var(name: str, value: Union[str, int, List[Any]]) → None

Assign a value to a variable by name.

This method requires the variable to be declared before allowing a new value to be assigned to it.

Translates to: ` wave w0; wave w0 = "dev1234_awg0_0"; # <-- `

Parameters

• name – The variable name.

• value – The new value.

emit_blankline() → None

Emits a blank line to the program.

This is typically used to create a visual separation for readability.

emit_comment(text: str) → None

Emit a comment to the program.

Parameters

text –

emit_assign_wave_index(*args: str, index: int) → None

Emit assignWaveIndex to the program which assigns a wave variable to an index in the waveform table (just like a pointer).

Parameters

index – The waveform table index.

emit_execute_table_entry(index: int, comment: str = '') → None

Emit executeTableEntry to the program. Executes a command table waveform.

::note executeTableEntry is not blocking so if you want to await the wave use waitWave directly after it.

Parameters

index – The wave index to execute.

emit_play_wave(*names: str, comment: str = '') → None

Emit playWave to the program.

Parameters

• names – The wave names to be played. This should refer to the wave variable name as defined in the seqc, or the wave index in the commandtable to be played.

• comment – The inline comment to be emitted in the seqc.

Examples

An example for the use of the playWave instruction from the LabOne Programming Manual.

Ensure that the “wave_file” variable (the name argument) corresponds to a filename that was declared using the declareWave

//Definition inline with playWave
playWave("wave_file");
//Assign first to a wave data type, then use
wave w = "wave_file";
playWave(w)

emit_wait_wave(comment: str = '') → None

Emit waitWave to the program.

emit_start_qa(comment: str = '') → None

Starts the Quantum Analysis Result and Input units by setting and clearing appropriate AWG trigger output signals. The choice of whether to start one or the other or both units can be controlled using the command argument. An bitmask may be used to select explicitly which of the ten possible qubit results should be read. If no qubit results are enabled, then the Quantum Analysis Result unit will not be triggered. An optional value may be used to set the normal trigger outputs of the AWG together with starting the Quantum Analysis Result and input units. If the value is not used, then the trigger signals will be cleared.

Parameter

• monitor: Enable for QA monitor, default: false

• result_address: Set address associated with result, default: 0x0

• trigger: Trigger value, default: 0x0

• weighted_integrator_mask: Integration unit enable mask, default: QA_INT_ALL

emit_wait(cycles: int, comment: str = '') → None

Emits a wait instruction to the sequencer program.

Parameters

cycles – The number of cycles to wait.

emit_set_trigger(index: Union[int, str], comment: str = '') → None

Emit setTrigger to the program.

Parameters

index – The number or string of a trigger to set.

emit_wait_dig_trigger(index: int = 0, comment: str = '', device_type: Optional[quantify_scheduler.backends.types.zhinst.DeviceType] = None) → None

Emit waitDigTrigger to the program.

Parameters

index – The trigger to wait on, by default 0

emit_start_qa_monitor() → None

Starts the Quantum Analysis Monitor unit by setting and clearing appropriate AWG trigger output signals.

emit_start_qa_result(bitmask: Optional[str] = None, trigger: Optional[str] = None) → None

Starts the Quantum Analysis Result unit by setting and clearing appropriate AWG trigger output signals.

// Start Quantum Analysis Result unit for
// channel=1 on trigger=AWG_INTEGRATION_TRIGGER
startQAResult(0b0000000001, AWG_INTEGRATION_TRIGGER);

// Reset and clear triggers
startQAResult();

Parameters

• bitmask – The bitmake to select explicitly which of the ten possible qubit results should be read, by default “”

• trigger – The trigger to start the Quantum Analysis Result unit. If no trigger is specified it will clear the triggers, by default “”

emit_begin_while(predicate: str = 'true') → None

Emit while loop to the program.

Parameters

predicate – The while condition, by default “true”

emit_end_while() → None

Emit ending the while loop.

emit_begin_repeat(repetitions: Union[int, str] = 1) → None

Emit repeat loop to the program.

Parameters

repetitions – The repeat condition, by default 1

emit_end_repeat() → None

Emit ending the repeat loop.

generate() → str

Returns the generated seqc program.

This program can be run on ZI AWG(s).

Returns

str

The seqc program.

add_wait(seqc_gen: SeqcILGenerator, delay: int, device_type: quantify_scheduler.backends.types.zhinst.DeviceType, comment: str = '') → int

Add a wait instruction to the SeqcILGenerator with the specified delay.

Parameters

• seqc_gen –

• delay – The delay in clocks.

• device_type –

• comment – An optional comment to the instruction, by default “”

Returns

The number of clocks waited.

Return type

int

Raises

ValueError –

add_play_wave(seqc_gen: SeqcILGenerator, *variable: str, device_type: quantify_scheduler.backends.types.zhinst.DeviceType, comment: str = '') → int

Adds a playWave instruction to the seqc program.

Parameters

• seqc_gen –

• variable –

• device_type –

• comment –

Returns

Elapsed number of clock cycles.

Return type

int

add_start_qa(seqc_gen: SeqcILGenerator, device_type: quantify_scheduler.backends.types.zhinst.DeviceType, comment: str = '') → int

Adds a startQA instruction to the seqc program. See emit_start_qa() for more details.

Parameters

• seqc_gen –

• device_type –

• comment –

Returns

Elapsed number of clock cycles.

Return type

int

add_execute_table_entry(seqc_gen: SeqcILGenerator, index: int, device_type: quantify_scheduler.backends.types.zhinst.DeviceType, comment: str = '') → int

Adds an executeTableEntry instruction to seqc program.

Parameters

• seqc_gen –

• index –

• device_type –

• comment –

Returns

Elapsed number of clock cycles.

Return type

int

Raises

AttributeError – Raised when the DeviceType not equals HDAWG.

add_set_trigger(seqc_gen: SeqcILGenerator, value: Union[List[str], int, str], device_type: quantify_scheduler.backends.types.zhinst.DeviceType, comment: str = '') → int

Adds a setTrigger instruction to the seqc program.

Parameters

• seqc_gen –

• value –

• device_type –

• comment –

Returns

Elapsed number of clock cycles.

Return type

int

declare_csv_waveform_variables(seqc_gen: SeqcILGenerator, device_name: str, waveform_indices: List[int], awg_index: int = 0)

Declares waveforms and links them to filenames of .csv files.

e.g. wave w0 = `uhfqa1234_awg0_wave0

add_csv_waveform_variables(seqc_gen: SeqcILGenerator, device_serial: str, awg_index: int, commandtable_map: Dict[int, int])

Adds wave variables in form of a CSV filename to the seqc file.

Parameters

• seqc_gen –

• device_serial –

• awg_index –

• commandtable_map –