diff --git a/b_asic/core_operations.py b/b_asic/core_operations.py
index e5d9dc02f142b0d14d854d3deebd7f469de4aa65..d4eaccfe5848213da41d8b9718915250c9233f07 100644
--- a/b_asic/core_operations.py
+++ b/b_asic/core_operations.py
@@ -1652,143 +1652,3 @@ class Shift(AbstractOperation):
if not isinstance(value, int):
raise TypeError("value must be an int")
self.set_param("value", value)
-
-
-class DontCare(AbstractOperation):
- r"""
- Dont-care operation
-
- Used for ignoring the input to another operation and thus avoiding dangling input nodes.
-
- Parameters
- ----------
- name : Name, optional
- Operation name.
-
- """
-
- __slots__ = "_name"
- _name: Name
-
- is_linear = True
-
- def __init__(self, name: Name = ""):
- """Construct a DontCare operation."""
- super().__init__(
- input_count=0,
- output_count=1,
- name=name,
- latency_offsets={"out0": 0},
- execution_time=0,
- )
-
- @classmethod
- def type_name(cls) -> TypeName:
- return TypeName("dontcare")
-
- def evaluate(self):
- return 0
-
- @property
- def latency(self) -> int:
- return 0
-
- def __repr__(self) -> str:
- return "DontCare()"
-
- def __str__(self) -> str:
- return "dontcare"
-
- def get_plot_coordinates(
- self,
- ) -> tuple[tuple[tuple[float, float], ...], tuple[tuple[float, float], ...]]:
- # Doc-string inherited
- return (
- (
- (-0.5, 0),
- (-0.5, 1),
- (-0.25, 1),
- (0, 0.5),
- (-0.25, 0),
- (-0.5, 0),
- ),
- (
- (-0.5, 0),
- (-0.5, 1),
- (-0.25, 1),
- (0, 0.5),
- (-0.25, 0),
- (-0.5, 0),
- ),
- )
-
- def get_input_coordinates(self) -> tuple[tuple[float, float], ...]:
- # doc-string inherited
- return ()
-
- def get_output_coordinates(self) -> tuple[tuple[float, float], ...]:
- # doc-string inherited
- return ((0, 0.5),)
-
-
-class Sink(AbstractOperation):
- r"""
- Sink operation.
-
- Used for ignoring the output from another operation to avoid dangling output nodes.
-
- Parameters
- ==========
-
- name : Name, optional
- Operation name.
- """
-
- __slots__ = "_name"
- _name: Name
-
- is_linear = True
-
- def __init__(self, name: Name = ""):
- """Construct a Sink operation."""
- super().__init__(
- input_count=1,
- output_count=0,
- name=name,
- latency_offsets={"in0": 0},
- execution_time=0,
- )
-
- @classmethod
- def type_name(cls) -> TypeName:
- return TypeName("sink")
-
- def evaluate(self):
- raise NotImplementedError
-
- @property
- def latency(self) -> int:
- return 0
-
- def __repr__(self) -> str:
- return "Sink()"
-
- def __str__(self) -> str:
- return "sink"
-
- def get_plot_coordinates(
- self,
- ) -> tuple[tuple[tuple[float, float], ...], tuple[tuple[float, float], ...]]:
- # Doc-string inherited
- return (
- ((0, 0), (0, 1), (0.25, 1), (0.5, 0.5), (0.25, 0), (0, 0)),
- ((0, 0), (0, 1), (0.25, 1), (0.5, 0.5), (0.25, 0), (0, 0)),
- )
-
- def get_input_coordinates(self) -> tuple[tuple[float, float], ...]:
- # doc-string inherited
- return ((0, 0.5),)
-
- def get_output_coordinates(self) -> tuple[tuple[float, float], ...]:
- # doc-string inherited
- return ()
diff --git a/b_asic/schedule.py b/b_asic/schedule.py
index 368a20f2efb123c270ac9ae6f38e8752dc930054..aac58538d7cb9cf3dbb4b41729925dbead5def8a 100644
--- a/b_asic/schedule.py
+++ b/b_asic/schedule.py
@@ -29,7 +29,6 @@ from b_asic._preferences import (
SIGNAL_LINEWIDTH,
SPLINE_OFFSET,
)
-from b_asic.core_operations import DontCare, Sink
from b_asic.graph_component import GraphID
from b_asic.operation import Operation
from b_asic.port import InputPort, OutputPort
@@ -37,7 +36,7 @@ from b_asic.process import MemoryVariable, OperatorProcess
from b_asic.resources import ProcessCollection
from b_asic.scheduler import Scheduler
from b_asic.signal_flow_graph import SFG
-from b_asic.special_operations import Delay, Input, Output
+from b_asic.special_operations import Delay, DontCare, Input, Output, Sink
from b_asic.types import TypeName
# Need RGB from 0 to 1
diff --git a/b_asic/scheduler.py b/b_asic/scheduler.py
index 05fe476311c956dec56d84770db666dc5ab61ae5..025db2970939c53f8cef5ec8380b968c3eaf8446 100644
--- a/b_asic/scheduler.py
+++ b/b_asic/scheduler.py
@@ -4,9 +4,8 @@ from collections import defaultdict
from typing import TYPE_CHECKING, cast
import b_asic.logger
-from b_asic.core_operations import DontCare, Sink
from b_asic.port import OutputPort
-from b_asic.special_operations import Delay, Input, Output
+from b_asic.special_operations import Delay, DontCare, Input, Output, Sink
from b_asic.types import TypeName
if TYPE_CHECKING:
diff --git a/b_asic/sfg_generators.py b/b_asic/sfg_generators.py
index b7e21aaaf12e1078e74553e3d76bda5a58c43330..755e82d14725b46ebfe1a026f0343c5b52b550fd 100644
--- a/b_asic/sfg_generators.py
+++ b/b_asic/sfg_generators.py
@@ -14,14 +14,13 @@ from b_asic.core_operations import (
Addition,
Butterfly,
ConstantMultiplication,
- DontCare,
Name,
Reciprocal,
SymmetricTwoportAdaptor,
)
from b_asic.signal import Signal
from b_asic.signal_flow_graph import SFG
-from b_asic.special_operations import Delay, Input, Output
+from b_asic.special_operations import Delay, DontCare, Input, Output
if TYPE_CHECKING:
from b_asic.port import OutputPort
diff --git a/b_asic/special_operations.py b/b_asic/special_operations.py
index ca115908f2a9e44243b2867a3781b2cac90f7f2a..6a1a3d039501f5ab4f32e9e2953cf3dae15efb05 100644
--- a/b_asic/special_operations.py
+++ b/b_asic/special_operations.py
@@ -249,3 +249,143 @@ class Delay(AbstractOperation):
def initial_value(self, value: Num) -> None:
"""Set the initial value of this delay."""
self.set_param("initial_value", value)
+
+
+class DontCare(AbstractOperation):
+ r"""
+ Dont-care operation
+
+ Used for ignoring the input to another operation and thus avoiding dangling input nodes.
+
+ Parameters
+ ----------
+ name : Name, optional
+ Operation name.
+
+ """
+
+ __slots__ = "_name"
+ _name: Name
+
+ is_linear = True
+
+ def __init__(self, name: Name = ""):
+ """Construct a DontCare operation."""
+ super().__init__(
+ input_count=0,
+ output_count=1,
+ name=name,
+ latency_offsets={"out0": 0},
+ execution_time=0,
+ )
+
+ @classmethod
+ def type_name(cls) -> TypeName:
+ return TypeName("dontcare")
+
+ def evaluate(self):
+ return 0
+
+ @property
+ def latency(self) -> int:
+ return 0
+
+ def __repr__(self) -> str:
+ return "DontCare()"
+
+ def __str__(self) -> str:
+ return "dontcare"
+
+ def get_plot_coordinates(
+ self,
+ ) -> tuple[tuple[tuple[float, float], ...], tuple[tuple[float, float], ...]]:
+ # Doc-string inherited
+ return (
+ (
+ (-0.5, 0),
+ (-0.5, 1),
+ (-0.25, 1),
+ (0, 0.5),
+ (-0.25, 0),
+ (-0.5, 0),
+ ),
+ (
+ (-0.5, 0),
+ (-0.5, 1),
+ (-0.25, 1),
+ (0, 0.5),
+ (-0.25, 0),
+ (-0.5, 0),
+ ),
+ )
+
+ def get_input_coordinates(self) -> tuple[tuple[float, float], ...]:
+ # doc-string inherited
+ return ()
+
+ def get_output_coordinates(self) -> tuple[tuple[float, float], ...]:
+ # doc-string inherited
+ return ((0, 0.5),)
+
+
+class Sink(AbstractOperation):
+ r"""
+ Sink operation.
+
+ Used for ignoring the output from another operation to avoid dangling output nodes.
+
+ Parameters
+ ==========
+
+ name : Name, optional
+ Operation name.
+ """
+
+ __slots__ = "_name"
+ _name: Name
+
+ is_linear = True
+
+ def __init__(self, name: Name = ""):
+ """Construct a Sink operation."""
+ super().__init__(
+ input_count=1,
+ output_count=0,
+ name=name,
+ latency_offsets={"in0": 0},
+ execution_time=0,
+ )
+
+ @classmethod
+ def type_name(cls) -> TypeName:
+ return TypeName("sink")
+
+ def evaluate(self):
+ raise NotImplementedError
+
+ @property
+ def latency(self) -> int:
+ return 0
+
+ def __repr__(self) -> str:
+ return "Sink()"
+
+ def __str__(self) -> str:
+ return "sink"
+
+ def get_plot_coordinates(
+ self,
+ ) -> tuple[tuple[tuple[float, float], ...], tuple[tuple[float, float], ...]]:
+ # Doc-string inherited
+ return (
+ ((0, 0), (0, 1), (0.25, 1), (0.5, 0.5), (0.25, 0), (0, 0)),
+ ((0, 0), (0, 1), (0.25, 1), (0.5, 0.5), (0.25, 0), (0, 0)),
+ )
+
+ def get_input_coordinates(self) -> tuple[tuple[float, float], ...]:
+ # doc-string inherited
+ return ((0, 0.5),)
+
+ def get_output_coordinates(self) -> tuple[tuple[float, float], ...]:
+ # doc-string inherited
+ return ()