diff --git a/lab2CA.cache/wt/webtalk_pa.xml b/lab2CA.cache/wt/webtalk_pa.xml
index 697bd6c..326266f 100644
--- a/lab2CA.cache/wt/webtalk_pa.xml
+++ b/lab2CA.cache/wt/webtalk_pa.xml
@@ -3,7 +3,7 @@
 <!--The data in this file is primarily intended for consumption by Xilinx tools.
 The structure and the elements are likely to change over the next few releases.
 This means code written to parse this file will need to be revisited each subsequent release.-->
-<application name="pa" timeStamp="Sun Mar 10 14:09:05 2019">
+<application name="pa" timeStamp="Tue Mar 12 21:30:20 2019">
 <section name="Project Information" visible="false">
 <property name="ProjectID" value="88e779ed22f94d2db93b335d17c75f15" type="ProjectID"/>
 <property name="ProjectIteration" value="7" type="ProjectIteration"/>
@@ -17,7 +17,7 @@ This means code written to parse this file will need to be revisited each subseq
 <property name="ImplStrategy" value="Vivado Implementation Defaults" type="ImplStrategy"/>
 </item>
 <item name="Java Command Handlers">
-<property name="CloseProject" value="1" type="JavaHandler"/>
+<property name="CloseProject" value="2" type="JavaHandler"/>
 <property name="OpenDesign" value="1" type="JavaHandler"/>
 <property name="OpenProject" value="2" type="JavaHandler"/>
 <property name="ReloadDesign" value="1" type="JavaHandler"/>
@@ -25,10 +25,10 @@ This means code written to parse this file will need to be revisited each subseq
 <property name="RunSchematic" value="9" type="JavaHandler"/>
 <property name="RunSynthesis" value="16" type="JavaHandler"/>
 <property name="SetSourceEnabled" value="2" type="JavaHandler"/>
-<property name="SetTopNode" value="25" type="JavaHandler"/>
+<property name="SetTopNode" value="26" type="JavaHandler"/>
 <property name="ShowView" value="9" type="JavaHandler"/>
 <property name="SimulationClose" value="5" type="JavaHandler"/>
-<property name="SimulationRun" value="73" type="JavaHandler"/>
+<property name="SimulationRun" value="74" type="JavaHandler"/>
 <property name="ToggleSelectAreaMode" value="2" type="JavaHandler"/>
 <property name="ToolsSettings" value="1" type="JavaHandler"/>
 <property name="ViewTaskImplementation" value="1" type="JavaHandler"/>
@@ -39,14 +39,14 @@ This means code written to parse this file will need to be revisited each subseq
 <item name="Gui Handlers">
 <property name="AbstractSearchablePanel_SHOW_SEARCH" value="1" type="GuiHandlerData"/>
 <property name="BaseDialog_CANCEL" value="13" type="GuiHandlerData"/>
-<property name="BaseDialog_OK" value="65" type="GuiHandlerData"/>
+<property name="BaseDialog_OK" value="67" type="GuiHandlerData"/>
 <property name="BaseDialog_YES" value="5" type="GuiHandlerData"/>
 <property name="CmdMsgDialog_OK" value="7" type="GuiHandlerData"/>
 <property name="CmdMsgDialog_OPEN_MESSAGES_VIEW" value="1" type="GuiHandlerData"/>
-<property name="FileSetPanel_FILE_SET_PANEL_TREE" value="177" type="GuiHandlerData"/>
+<property name="FileSetPanel_FILE_SET_PANEL_TREE" value="202" type="GuiHandlerData"/>
 <property name="FloatingTopDialog_SELECT_TOP_MODULE_OF_YOUR_DESIGN" value="12" type="GuiHandlerData"/>
 <property name="FloatingTopDialog_SPECIFY_NEW_TOP_MODULE" value="10" type="GuiHandlerData"/>
-<property name="FlowNavigatorTreePanel_FLOW_NAVIGATOR_TREE" value="132" type="GuiHandlerData"/>
+<property name="FlowNavigatorTreePanel_FLOW_NAVIGATOR_TREE" value="133" type="GuiHandlerData"/>
 <property name="GettingStartedView_OPEN_PROJECT" value="2" type="GuiHandlerData"/>
 <property name="GraphicalView_ZOOM_FIT" value="27" type="GuiHandlerData"/>
 <property name="GraphicalView_ZOOM_IN" value="40" type="GuiHandlerData"/>
@@ -55,56 +55,56 @@ This means code written to parse this file will need to be revisited each subseq
 <property name="HCodeEditor_CLOSE" value="4" type="GuiHandlerData"/>
 <property name="HCodeEditor_COMMANDS_TO_FOLD_TEXT" value="3" type="GuiHandlerData"/>
 <property name="HCodeEditor_DIFF_WITH" value="3" type="GuiHandlerData"/>
-<property name="HCodeEditor_SEARCH_TEXT_COMBO_BOX" value="8" type="GuiHandlerData"/>
+<property name="HCodeEditor_SEARCH_TEXT_COMBO_BOX" value="10" type="GuiHandlerData"/>
 <property name="HInputHandler_TOGGLE_LINE_COMMENTS" value="13" type="GuiHandlerData"/>
 <property name="LaunchPanel_DONT_SHOW_THIS_DIALOG_AGAIN" value="1" type="GuiHandlerData"/>
 <property name="MainMenuMgr_EDIT" value="2" type="GuiHandlerData"/>
-<property name="MainMenuMgr_FILE" value="4" type="GuiHandlerData"/>
+<property name="MainMenuMgr_FILE" value="6" type="GuiHandlerData"/>
 <property name="MainMenuMgr_FLOW" value="2" type="GuiHandlerData"/>
-<property name="MainMenuMgr_PROJECT" value="3" type="GuiHandlerData"/>
+<property name="MainMenuMgr_PROJECT" value="4" type="GuiHandlerData"/>
 <property name="MessageWithOptionDialog_DONT_SHOW_THIS_DIALOG_AGAIN" value="2" type="GuiHandlerData"/>
 <property name="MsgTreePanel_MESSAGE_VIEW_TREE" value="29" type="GuiHandlerData"/>
 <property name="OpenFileAction_OK" value="1" type="GuiHandlerData"/>
-<property name="PACommandNames_AUTO_UPDATE_HIER" value="28" type="GuiHandlerData"/>
-<property name="PACommandNames_CLOSE_PROJECT" value="1" type="GuiHandlerData"/>
+<property name="PACommandNames_AUTO_UPDATE_HIER" value="29" type="GuiHandlerData"/>
+<property name="PACommandNames_CLOSE_PROJECT" value="2" type="GuiHandlerData"/>
 <property name="PACommandNames_OPEN_RTL_DESIGN" value="1" type="GuiHandlerData"/>
 <property name="PACommandNames_RELOAD_RTL_DESIGN" value="1" type="GuiHandlerData"/>
 <property name="PACommandNames_SELECT_AREA" value="2" type="GuiHandlerData"/>
-<property name="PACommandNames_SET_AS_TOP" value="26" type="GuiHandlerData"/>
-<property name="PACommandNames_SIMULATION_RUN_BEHAVIORAL" value="71" type="GuiHandlerData"/>
+<property name="PACommandNames_SET_AS_TOP" value="27" type="GuiHandlerData"/>
+<property name="PACommandNames_SIMULATION_RUN_BEHAVIORAL" value="72" type="GuiHandlerData"/>
 <property name="PACommandNames_SIMULATION_RUN_POST_IMPLEMENTATION_FUNCTIONAL" value="1" type="GuiHandlerData"/>
 <property name="PACommandNames_SIMULATION_RUN_POST_IMPLEMENTATION_TIMING" value="4" type="GuiHandlerData"/>
 <property name="PACommandNames_SIMULATION_SETTINGS" value="1" type="GuiHandlerData"/>
 <property name="PACommandNames_SRC_ENABLE" value="1" type="GuiHandlerData"/>
 <property name="PACommandNames_ZOOM_FIT" value="6" type="GuiHandlerData"/>
-<property name="PAViews_CODE" value="8" type="GuiHandlerData"/>
-<property name="PAViews_PROJECT_SUMMARY" value="42" type="GuiHandlerData"/>
+<property name="PAViews_CODE" value="12" type="GuiHandlerData"/>
+<property name="PAViews_PROJECT_SUMMARY" value="43" type="GuiHandlerData"/>
 <property name="PAViews_SCHEMATIC" value="9" type="GuiHandlerData"/>
 <property name="ProgressDialog_BACKGROUND" value="3" type="GuiHandlerData"/>
 <property name="ProgressDialog_CANCEL" value="4" type="GuiHandlerData"/>
 <property name="ProjectTab_RELOAD" value="8" type="GuiHandlerData"/>
 <property name="RDICommands_COPY" value="2" type="GuiHandlerData"/>
 <property name="RDICommands_REDO" value="1" type="GuiHandlerData"/>
-<property name="RDICommands_SAVE_FILE" value="65" type="GuiHandlerData"/>
-<property name="RDIViews_WAVEFORM_VIEWER" value="378" type="GuiHandlerData"/>
+<property name="RDICommands_SAVE_FILE" value="70" type="GuiHandlerData"/>
+<property name="RDIViews_WAVEFORM_VIEWER" value="379" type="GuiHandlerData"/>
 <property name="RunGadget_SHOW_ERROR" value="1" type="GuiHandlerData"/>
 <property name="SaveProjectUtils_CANCEL" value="1" type="GuiHandlerData"/>
 <property name="SaveProjectUtils_SAVE" value="5" type="GuiHandlerData"/>
 <property name="SelectTopModuleDialog_SELECT_TOP_MODULE" value="12" type="GuiHandlerData"/>
 <property name="SimulationObjectsPanel_SIMULATION_OBJECTS_TREE_TABLE" value="12" type="GuiHandlerData"/>
 <property name="SimulationScopesPanel_SIMULATE_SCOPE_TABLE" value="10" type="GuiHandlerData"/>
-<property name="SrcMenu_IP_HIERARCHY" value="29" type="GuiHandlerData"/>
+<property name="SrcMenu_IP_HIERARCHY" value="30" type="GuiHandlerData"/>
 <property name="StaleMoreAction_OUT_OF_DATE_DETAILS" value="1" type="GuiHandlerData"/>
-<property name="SyntheticaGettingStartedView_RECENT_PROJECTS" value="6" type="GuiHandlerData"/>
+<property name="SyntheticaGettingStartedView_RECENT_PROJECTS" value="7" type="GuiHandlerData"/>
 <property name="SyntheticaStateMonitor_CANCEL" value="1" type="GuiHandlerData"/>
-<property name="TaskBanner_CLOSE" value="20" type="GuiHandlerData"/>
+<property name="TaskBanner_CLOSE" value="21" type="GuiHandlerData"/>
 <property name="TclConsoleView_TCL_CONSOLE_CODE_EDITOR" value="1" type="GuiHandlerData"/>
 <property name="WaveformNameTree_WAVEFORM_NAME_TREE" value="187" type="GuiHandlerData"/>
 </item>
 <item name="Other">
-<property name="GuiMode" value="11" type="GuiMode"/>
+<property name="GuiMode" value="32" type="GuiMode"/>
 <property name="BatchMode" value="0" type="BatchMode"/>
-<property name="TclMode" value="10" type="TclMode"/>
+<property name="TclMode" value="26" type="TclMode"/>
 </item>
 </section>
 </application>
diff --git a/lab2CA.srcs/sources_1/new/BasicModules.v b/lab2CA.srcs/sources_1/new/BasicModules.v
index 0e266f7..e9c85c5 100644
--- a/lab2CA.srcs/sources_1/new/BasicModules.v
+++ b/lab2CA.srcs/sources_1/new/BasicModules.v
@@ -943,46 +943,6 @@ module shift_right_arithmetic_tb();
     end
 endmodule
 
-module slt (
-    input wire en,
-    input wire [8:0] inA, inB,
-    output reg [8:0] outA);
-    
-    always @(inA, inB)begin
-        if (inA < inB) begin
-            outA = 9'b000000001;
-        end
-        else begin
-            outA = 9'b000000000;
-        end
-    end
-endmodule
-
-//testbench
-module slt_tb();
-    reg [8:0] indexA;
-    reg [8:0] indexB;
-    wire outputA;
-
-    slt slt0(
-        .inA(indexA),
-        .inB(indexB),
-        .outA(outputA));
-    
-    initial begin
-        indexA = 9'b000000000;
-        indexB = 9'b000000000;
-        #10
-        indexA = 9'b000000000;
-        indexB = 9'b111100000;
-        #10
-        indexA = 9'b000001111;
-        indexB = 9'b000000000;
-        #10
-        $finish;
-    end
-endmodule
-
 module sub_9bit(
     input wire [8:0] A,
     input wire [8:0] B,
diff --git a/lab2CA.srcs/sources_1/new/ControlUnit.v b/lab2CA.srcs/sources_1/new/ControlUnit.v
index 59bdf83..90d7f1a 100644
--- a/lab2CA.srcs/sources_1/new/ControlUnit.v
+++ b/lab2CA.srcs/sources_1/new/ControlUnit.v
@@ -44,7 +44,7 @@ module ControlUnit(
                     RegEn <= 1'b0;
                 end
             4'b0111: begin 
-                     aluOut <= 4'b1001; //slt
+                     aluOut <= 4'b1001; //Less than
                      RegEn <= 1'b0;
                 end
             4'b0110: begin