diff --git a/SRC/cic_impulse_response.py b/SRC/cic_impulse_response.py
new file mode 100644
--- /dev/null
+++ b/SRC/cic_impulse_response.py
@@ -0,0 +1,41 @@
+class GenericInterator(object):
+	"""docstring for GenericInterator"""
+	def __init__(self):
+		super(GenericInterator, self).__init__()
+		self.y = 0
+		
+	def integrator(self, x):
+		self.y = self.y + x
+		return self.y
+
+class GenericDerivator(object):
+	"""docstring for GenericInterator"""
+	def __init__(self):
+		super(GenericDerivator, self).__init__()
+		self.y = 0
+		self.x_tmp1 = 0
+		self.x_tmp2	= 0
+		
+	def derivator(self, x):
+		self.y = x - self.x_tmp2
+		self.x_tmp2 = self.x_tmp1
+		self.x_tmp1 = x
+		return self.y
+
+if __name__ == "__main__":
+	i0 = GenericInterator()
+	i1 = GenericInterator()
+	i2 = GenericInterator()
+	c0 = GenericDerivator()
+	c1 = GenericDerivator()
+	c2 = GenericDerivator()
+	for i in range(10):
+		for j in range(32):
+			i2.integrator(i1.y)
+			i1.integrator(i0.y)
+			i0.integrator(127)
+			if j == 0:
+				c0.derivator(i2.y)
+				c1.derivator(c0.y)
+				c2.derivator(c1.y)
+				print i, j, i0.y, i1.y, " *** ", i2.y, c0.y, c1.y, c2.y, c2.y / 2**16
diff --git a/lfr_emulator.sublime-project b/lfr_emulator.sublime-project
new file mode 100644
--- /dev/null
+++ b/lfr_emulator.sublime-project
@@ -0,0 +1,8 @@
+{
+	"folders":
+	[
+		{
+			"path": "/run/media/admin/EADA65D1DA659B19/opt/LFR_EMULATOR"
+		}
+	]
+}
diff --git a/lfr_emulator.sublime-workspace b/lfr_emulator.sublime-workspace
new file mode 100644
--- /dev/null
+++ b/lfr_emulator.sublime-workspace
@@ -0,0 +1,225 @@
+{
+	"auto_complete":
+	{
+		"selected_items":
+		[
+			[
+				"stage",
+				"stage"
+			]
+		]
+	},
+	"buffers":
+	[
+		{
+			"file": "twiddle_factors_128_dot_vhd_generation.py",
+			"settings":
+			{
+				"buffer_size": 2751,
+				"line_ending": "Windows"
+			}
+		},
+		{
+			"file": "lfr_emulator.sublime-project",
+			"settings":
+			{
+				"buffer_size": 94,
+				"line_ending": "Unix"
+			}
+		}
+	],
+	"build_system": "",
+	"command_palette":
+	{
+		"height": 332.0,
+		"selected_items":
+		[
+		],
+		"width": 392.0
+	},
+	"console":
+	{
+		"height": 0.0
+	},
+	"distraction_free":
+	{
+		"menu_visible": true,
+		"show_minimap": false,
+		"show_open_files": false,
+		"show_tabs": false,
+		"side_bar_visible": false,
+		"status_bar_visible": false
+	},
+	"file_history":
+	[
+		"/run/media/admin/EADA65D1DA659B19/opt/LFR_EMULATOR/main.py",
+		"/run/media/admin/EADA65D1DA659B19/opt/LFR_EMULATOR/fft_8_decimation_in_frequency.py",
+		"/run/media/admin/EADA65D1DA659B19/opt/LFR_EMULATOR/twiddle_factors.py",
+		"/run/media/admin/EADA65D1DA659B19/opt/LFR_EMULATOR/index_transform_decimation_in_frequency.py",
+		"/home/admin/PYTHON/lfrprocessing/tests_cooleytukey.py",
+		"/home/admin/PYTHON/lfrprocessing/fft.py",
+		"/home/admin/PYTHON/lfrprocessing/cicfilter_testbench.py",
+		"/home/admin/PYTHON/lfrprocessing/cicfilter.py",
+		"/home/admin/PYTHON/lfrprocessing/filters.py",
+		"/home/admin/PYTHON/lfrprocessing/processing_chain.py",
+		"/home/admin/PYTHON/lfrprocessing/filters_LFR.py",
+		"/home/admin/PYTHON/lfrprocessing.sublime-project",
+		"/home/admin/.config/sublime-text-2/Packages/User/Distraction Free.sublime-settings"
+	],
+	"find":
+	{
+		"height": 0.0
+	},
+	"find_in_files":
+	{
+		"height": 0.0,
+		"where_history":
+		[
+		]
+	},
+	"find_state":
+	{
+		"case_sensitive": false,
+		"find_history":
+		[
+			"group_range"
+		],
+		"highlight": true,
+		"in_selection": false,
+		"preserve_case": false,
+		"regex": false,
+		"replace_history":
+		[
+			"nb_groups"
+		],
+		"reverse": false,
+		"show_context": true,
+		"use_buffer2": true,
+		"whole_word": false,
+		"wrap": true
+	},
+	"groups":
+	[
+		{
+			"selected": 1,
+			"sheets":
+			[
+				{
+					"buffer": 0,
+					"file": "twiddle_factors_128_dot_vhd_generation.py",
+					"settings":
+					{
+						"buffer_size": 2751,
+						"regions":
+						{
+						},
+						"selection":
+						[
+							[
+								933,
+								933
+							]
+						],
+						"settings":
+						{
+							"syntax": "Packages/Python/Python.tmLanguage",
+							"translate_tabs_to_spaces": false
+						},
+						"translation.x": 0.0,
+						"translation.y": 0.0,
+						"zoom_level": 1.0
+					},
+					"type": "text"
+				},
+				{
+					"buffer": 1,
+					"file": "lfr_emulator.sublime-project",
+					"settings":
+					{
+						"buffer_size": 94,
+						"regions":
+						{
+						},
+						"selection":
+						[
+							[
+								0,
+								0
+							]
+						],
+						"settings":
+						{
+							"syntax": "Packages/JavaScript/JSON.tmLanguage"
+						},
+						"translation.x": 0.0,
+						"translation.y": 0.0,
+						"zoom_level": 1.0
+					},
+					"type": "text"
+				}
+			]
+		}
+	],
+	"incremental_find":
+	{
+		"height": 0.0
+	},
+	"input":
+	{
+		"height": 0.0
+	},
+	"layout":
+	{
+		"cells":
+		[
+			[
+				0,
+				0,
+				1,
+				1
+			]
+		],
+		"cols":
+		[
+			0.0,
+			1.0
+		],
+		"rows":
+		[
+			0.0,
+			1.0
+		]
+	},
+	"menu_visible": true,
+	"output.exec":
+	{
+		"height": 208.0
+	},
+	"replace":
+	{
+		"height": 62.0
+	},
+	"save_all_on_build": true,
+	"select_file":
+	{
+		"height": 0.0,
+		"selected_items":
+		[
+		],
+		"width": 0.0
+	},
+	"select_project":
+	{
+		"height": 0.0,
+		"selected_items":
+		[
+		],
+		"width": 0.0
+	},
+	"show_minimap": true,
+	"show_open_files": false,
+	"show_tabs": true,
+	"side_bar_visible": true,
+	"side_bar_width": 267.0,
+	"status_bar_visible": true
+}