diff --git a/src/gbasm/instructions/nop.py b/src/gbasm/instructions/nop.py
deleted file mode 100644
index 3ef2922..0000000
--- a/src/gbasm/instructions/nop.py
+++ /dev/null
@@ -1,24 +0,0 @@
-from .Instruction import Instruction
-from ..arguments import Argument
-from typing import Callable, List
-
-
-class Nop(Instruction):
-    def __init__(self):
-        argtypes = [[]]
-        super().__init__("NOP", argtypes)
-
-    def num_bytes(self, arguments) -> int:
-        return 1
-
-    def to_bytes(
-        self,
-        arguments: List[Argument],
-        instruction_addr: int,
-        label_resolver: Callable[[str], int],
-    ) -> bytes:
-
-        if len(arguments) != 0:
-            raise ValueError("Incorrect number of arguments")
-
-        return bytes([0x00])
diff --git a/src/gbasm/instructions/stop.py b/src/gbasm/instructions/stop.py
deleted file mode 100644
index d1c6fe9..0000000
--- a/src/gbasm/instructions/stop.py
+++ /dev/null
@@ -1,24 +0,0 @@
-from .Instruction import Instruction
-from ..arguments import Argument
-from typing import Callable, List
-
-
-class Stop(Instruction):
-    def __init__(self):
-        argtypes = [[]]
-        super().__init__("STOP", argtypes)
-
-    def num_bytes(self, arguments) -> int:
-        return 1
-
-    def to_bytes(
-        self,
-        arguments: List[Argument],
-        instruction_addr: int,
-        label_resolver: Callable[[str], int],
-    ) -> bytes:
-
-        if len(arguments) != 0:
-            raise ValueError("Incorrect number of arguments")
-
-        return bytes([0x10])