diff --git a/GCodeAnalyzer.py b/GCodeAnalyzer.py
index 97c0cd5..aa2a5bc 100644
--- a/GCodeAnalyzer.py
+++ b/GCodeAnalyzer.py
@@ -60,21 +60,22 @@ class GCodeAnalyzer():
       self.maxZ = 150
       
       
-   # find a code in a gstring line   
-   def findCode(self, gcode, codeStr):
+  # find a code in a gstring line   
+  def findCode(self, gcode, codeStr):
       pattern = re.compile(codeStr + "s*([\d.]*)",re.I)
       m=re.match(pattern, gcode)
       if m == None:
-	return None
+        return None
       else
-	return m.group(1)
+        return m.group(1)
 	
-   def Analyze(self, gcode):
+  def Analyze(self, gcode):
       code_g = self.findCode(gcode, "G")
+      code_m = self.findCode(gcode, "M")
       
       # we have a g_code
       if code_g != None:
-	code_g = int(code_g)
+        code_g = int(code_g)
 	
 	#get movement codes
 	if code_g == 0 or code_g == 1 or code_g == 2 or code_g == 3:
@@ -97,7 +98,7 @@ class GCodeAnalyzer():
 	      if e != 0:
 		eChanged = True
 		self.e += e
-	  else:
+	  else:	    
 	    #absolute coordinates
 	    if code_x != None: self.x = self.xOffset + float(code_x)
 	    if code_y != None: self.y = self.yOffset + float(code_y)
@@ -122,4 +123,55 @@ class GCodeAnalyzer():
 	  code_e = self.findCode(gcode, "E")
 	  homeAll = False
 	  if code_x == None and code_y == None and code_z == None: homeAll = True
-	  
\ No newline at end of file
+	  if code_x != None or homeAll:
+	    self.xOffset = 0
+	    self.x = self.homeX
+	  if code_y != None or homeAll:
+	    self.yOffset = 0
+	    self.y = self.homeY
+	  if code_z != None or homeAll:
+	    self.zOffset = 0
+	    self.z = self.homeZ
+	  if code_e != None:
+	    self.eOffset = 0
+	    self.e = 0
+	elif code_g == 162:
+	  code_x = self.findCode(gcode, "X")
+	  code_y = self.findCode(gcode, "Y")
+	  code_z = self.findCode(gcode, "Z")
+	  homeAll = False
+	  if code_x == None and code_y == None and code_z == None: homeAll = True
+	  if code_x != None or homeAll:
+	    self.xOffset = 0
+	    self.x = self.maxX
+	  if code_y != None or homeAll:
+	    self.yOffset = 0
+	    self.y = self.maxY
+	  if code_z != None or homeAll:
+	    self.zOffset = 0
+	    self.z = self.maxZ
+	elif code_g == 90: self.relative = False
+	elif code_g == 91: self.relative = True
+	elif code_g == 92:
+	  code_x = self.findCode(gcode, "X")
+	  code_y = self.findCode(gcode, "Y")
+	  code_z = self.findCode(gcode, "Z")
+	  code_e = self.findCode(gcode, "E")
+	  if code_x != None:
+	    self.xOffset = self.x - float(code_x)
+	    self.x = self.xOffset
+	  if code_y != None:
+	    self.yOffset = self.y - float(code_y)
+	    self.y = self.yOffset
+	  if code_z != None:
+	    self.zOffset = self.z - float(code_z)
+	    self.z = self.zOffset
+	  if code_e != None:
+	    self.xOffset = self.e - float(code_e)
+	    self.e = self.eOffset
+      #End code_g != None
+      if code_m != None:
+	code_m = int(code_m)
+	if code_m == 82: self.eRelative = False
+	elif code_m == 83: self.eRelative = True
+	
\ No newline at end of file