Xilinx Mapping Report File for Design "gate_reduce"          Copyright (c) 1995-1997 Xilinx, Inc.  All rights reserved.Design Information------------------Command Line   : map gate_reduce.ngd -o map.ncd gate_reduce.pcf Target Device  : x4005eTarget Package : pc84Target Speed   : -2Mapper Version : xc4000e -- M1.4.12Mapped Date    : Tue Jan  6 18:40:46 1998Design Summary--------------   Number of errors:        0   Number of warnings:     20   Number of CLBs:             79 out of   196   40%      CLB Flip Flops:      44      4 input LUTs:       122 (1 used as route-throughs)      3 input LUTs:        14   Number of bonded IOBs:       9 out of    61   14%      IOB Flops:            0      IOB Latches:          0   Number of global buffers:    1 out of     8   12%   Number of secondary CLKs:    1 out of     4   25%Total equivalent gate count for design: 1305Additional JTAG gate count for IOBs:    432Table of Contents-----------------Section 1 - ErrorsSection 2 - WarningsSection 3 - Design AttributesSection 4 - Removed Logic SummarySection 5 - Removed LogicSection 6 - Added LogicSection 7 - Expanded LogicSection 8 - Signal Cross-ReferenceSection 9 - Symbol Cross-ReferenceSection 10 - IOB PropertiesSection 11 - RPMsSection 12 - Guide ReportSection 1 - Errors------------------Section 2 - Warnings--------------------WARNING:baste:21 - Chipcheck: The signal "I_0/n796" is connected to the   asynchronous set/reset of every flip-flop in the design.  Using the dedicated   GSR/GR (global set/reset) pin on the STARTUP component will reduce the   ammount of routing resources required to implement the design.  To use   GSR/GR, disconnect the "I_0/n796" signal from the reset pin of every   flip-flop in the design, and connect it to the GSR/GR pin of the STARTUP   component.  Note that all flip-flops on the device will be cleared when   GSR/GR goes active.WARNING:baste:24 - All of the external outputs in this design are using   slew-rate-limited output drivers.  The delay on speed critical outputs can be   dramatically reduced by designating them as fast outputs in the original   design.  Please see your vendor interface documentation for specific   information on how to do this within your design-entry tool.   Note: You should be careful not to designate too many outputs which switch   together as fast, because this can cause excessive ground bounce.  For more   information on this subject, please refer to the IOB switching characteristic   guidelines for the device you are using in the Programmable Logic Data Book.WARNING:x4kma:111 - All the logic for FMAP symbol   "I_0/add_136/u8/S0_1/FMAP8_3_g" (output signal=I_0/add_136/u8/FUNC<7>) has   been removed!  This may be caused by key logic being trimmed.  Please consult   the Removed Logic section of this report to see if this is the case.WARNING:x4kma:111 - All the logic for FMAP symbol   "I_1/add_122/u6/S0_1/FMAP6_2_g" (output signal=I_1/add_122/u6/FUNC<5>) has   been removed!  This may be caused by key logic being trimmed.  Please consult   the Removed Logic section of this report to see if this is the case.WARNING:x4kma:111 - All the logic for FMAP symbol   "I_0/add_122/u6/S0_1/FMAP6_2_g" (output signal=I_0/add_122/u6/FUNC<5>) has   been removed!  This may be caused by key logic being trimmed.  Please consult   the Removed Logic section of this report to see if this is the case.WARNING:x4kma:111 - All the logic for FMAP symbol "r337/u6/S0_1/FMAP4_1_g"   (output signal=r337/u6/FUNC<3>) has been removed!  This may be caused by key   logic being trimmed.  Please consult the Removed Logic section of this report   to see if this is the case.WARNING:x4kma:111 - All the logic for FMAP symbol "r337/u6/S0_1/FMAP5_2_f"   (output signal=r337/u6/FUNC<4>) has been removed!  This may be caused by key   logic being trimmed.  Please consult the Removed Logic section of this report   to see if this is the case.WARNING:x4kma:111 - All the logic for FMAP symbol "r337/u6/S0_1/FMAP6_2_g"   (output signal=r337/u6/FUNC<5>) has been removed!  This may be caused by key   logic being trimmed.  Please consult the Removed Logic section of this report   to see if this is the case.WARNING:x4kma:111 - All the logic for FMAP symbol   "I_1/add_136/u8/S0_1/FMAP8_3_g" (output signal=I_1/add_136/u8/FUNC<7>) has   been removed!  This may be caused by key logic being trimmed.  Please consult   the Removed Logic section of this report to see if this is the case.WARNING:x4kma:340 - Signal "I_1/ZCNT<6>" on pin A0 of HIERCY4_31 symbol   "I_1/add_136/u8/S0_1/CY4_3" (output signal=I_1/add_136/u8/S0_1/CO_7) is not   required by carry mode EXAMINE-CI.  The signal is being removed.  This carry   component has been mode-reduced.  The original carry mode was "INCDEC-F-CI".WARNING:x4kma:340 - Signal "GLOBAL_LOGIC1" on pin ADD of HIERCY4_31 symbol   "I_1/add_136/u8/S0_1/CY4_3" (output signal=I_1/add_136/u8/S0_1/CO_7) is not   required by carry mode EXAMINE-CI.  The signal is being removed.  This carry   component has been mode-reduced.  The original carry mode was "INCDEC-F-CI".WARNING:x4kma:340 - Signal "I_0/DCNT<2>" on pin A0 of HIERCY4_32 symbol   "r337/u6/S0_1/CY4_1" (output signal=r337/u6/S0_1/CO_3) is not required by   carry mode EXAMINE-CI.  The signal is being removed.  This carry component   has been mode-reduced.  The original carry mode was "INCDEC-FG-CI".WARNING:x4kma:340 - Signal "GLOBAL_LOGIC1" on pin ADD of HIERCY4_32 symbol   "r337/u6/S0_1/CY4_1" (output signal=r337/u6/S0_1/CO_3) is not required by   carry mode EXAMINE-CI.  The signal is being removed.  This carry component   has been mode-reduced.  The original carry mode was "INCDEC-FG-CI".WARNING:x4kma:340 - Signal "GLOBAL_LOGIC0" on pin A1 of HIERCY4_32 symbol   "r337/u6/S0_1/CY4_1" (output signal=r337/u6/S0_1/CO_3) is not required by   carry mode EXAMINE-CI.  The signal is being removed.  This carry component   has been mode-reduced.  The original carry mode was "INCDEC-FG-CI".WARNING:x4kma:340 - Signal "I_0/ECNT<4>" on pin A0 of HIERCY4_31 symbol   "I_0/add_122/u6/S0_1/CY4_2" (output signal=I_0/add_122/u6/S0_1/CO_5) is not   required by carry mode EXAMINE-CI.  The signal is being removed.  This carry   component has been mode-reduced.  The original carry mode was "INCDEC-F-CI".WARNING:x4kma:340 - Signal "GLOBAL_LOGIC1" on pin ADD of HIERCY4_31 symbol   "I_0/add_122/u6/S0_1/CY4_2" (output signal=I_0/add_122/u6/S0_1/CO_5) is not   required by carry mode EXAMINE-CI.  The signal is being removed.  This carry   component has been mode-reduced.  The original carry mode was "INCDEC-F-CI".WARNING:x4kma:340 - Signal "I_1/ECNT<4>" on pin A0 of HIERCY4_31 symbol   "I_1/add_122/u6/S0_1/CY4_2" (output signal=I_1/add_122/u6/S0_1/CO_5) is not   required by carry mode EXAMINE-CI.  The signal is being removed.  This carry   component has been mode-reduced.  The original carry mode was "INCDEC-F-CI".WARNING:x4kma:340 - Signal "GLOBAL_LOGIC1" on pin ADD of HIERCY4_31 symbol   "I_1/add_122/u6/S0_1/CY4_2" (output signal=I_1/add_122/u6/S0_1/CO_5) is not   required by carry mode EXAMINE-CI.  The signal is being removed.  This carry   component has been mode-reduced.  The original carry mode was "INCDEC-F-CI".WARNING:x4kma:340 - Signal "I_0/ZCNT<6>" on pin A0 of HIERCY4_31 symbol   "I_0/add_136/u8/S0_1/CY4_3" (output signal=I_0/add_136/u8/S0_1/CO_7) is not   required by carry mode EXAMINE-CI.  The signal is being removed.  This carry   component has been mode-reduced.  The original carry mode was "INCDEC-F-CI".WARNING:x4kma:340 - Signal "GLOBAL_LOGIC1" on pin ADD of HIERCY4_31 symbol   "I_0/add_136/u8/S0_1/CY4_3" (output signal=I_0/add_136/u8/S0_1/CO_7) is not   required by carry mode EXAMINE-CI.  The signal is being removed.  This carry   component has been mode-reduced.  The original carry mode was "INCDEC-F-CI".Section 3 - Design Attributes-----------------------------Section 4 - Removed Logic Summary---------------------------------  19 Block(s) trimmed  16 block(s) optimized away  19 signal(s) removedSection 5 - Removed Logic-------------------------Block "I_0/lt_130/u8/S0/SUB/AND1_CO_5" (AND2) removed due to optimization.Block "I_1/lt_130/u8/S0/SUB/AND1_CO_5" (AND2) removed due to optimization.Block "I_0/lt_130/grnd_sig.ZERO" (X_ZERO) removed due to optimization.Block "I_0/lt_130/u8/S0/SUB/AND2_CO_5" (AND2) removed due to optimization.Block "I_0/lt_130/u8/S0/SUB/OR1_CO_5" (OR2) removed due to optimization.Block "I_1/lt_130/grnd_sig.ZERO" (X_ZERO) removed due to optimization.Block "I_1/lt_130/u8/S0/SUB/AND2_CO_5" (AND2) removed due to optimization.Block "I_1/lt_130/u8/S0/SUB/OR1_CO_5" (OR2) removed due to optimization.Block "n185.ONE" (X_ONE) removed due to optimization.Block "I_0/_Logic1_.ONE" (X_ONE) removed due to optimization.Block "I_0/_Logic0_.ZERO" (X_ZERO) removed due to optimization.Block "r337/grnd_sig.ZERO" (X_ZERO) removed due to optimization.Block "n184.ONE" (X_ONE) removed due to optimization.Block "n183.ONE" (X_ONE) removed due to optimization.Block "n182.ONE" (X_ONE) removed due to optimization.Block "n181.ONE" (X_ONE) removed due to optimization.The trimmed logic reported below is either:   1. part of a cycle   2. part of disabled logic   3. a side-effect of other trimmed logicThe signal "I_1/add_136/grnd_sig" is unused and has been removed. Unused block "I_1/add_136/grnd_sig.ZERO" (X_ZERO) removed.The signal "I_0/add_122/grnd_sig" is unused and has been removed. Unused block "I_0/add_122/grnd_sig.ZERO" (X_ZERO) removed.The signal "I_1/add_122/grnd_sig" is unused and has been removed. Unused block "I_1/add_122/grnd_sig.ZERO" (X_ZERO) removed.The signal "I_0/add_136/grnd_sig" is unused and has been removed. Unused block "I_0/add_136/grnd_sig.ZERO" (X_ZERO) removed.The signal "I_1/add_136/u8/FUNC<7>" is unused and has been removed. Unused block "I_1/add_136/u8/S0_1/XOR7_G_SUM_3/I_1/add_136/u8/FUNC<7>" (X_XOR2)removed.  The signal "I_1/add_136/u8/FUNC<7>/2.0" is unused and has been removed.   Unused block "I_1/add_136/u8/S0_1/XOR7_G_SUM_3/I_1/add_136/u8/FUNC<7>/2.0"(X_XOR2) removed.The signal "r337/u6/FUNC<5>" is unused and has been removed. Unused block "r337/u6/S0_1/XOR5_G_SUM_2/r337/u6/FUNC<5>" (X_XOR2) removed.  The signal "r337/u6/FUNC<5>/2.0" is unused and has been removed.   Unused block "r337/u6/S0_1/XOR5_G_SUM_2/r337/u6/FUNC<5>/2.0" (X_XOR2) removed.    The signal "r337/u6/S0_1/CO_5" is unused and has been removed.     Unused block "r337/u6/S0_1/CY4_2" (HIERCY4_31) removed.The signal "r337/u6/FUNC<4>" is unused and has been removed. Unused block "r337/u6/S0_1/XOR4_F_SUM_2/r337/u6/FUNC<4>" (X_XOR2) removed.  The signal "r337/u6/FUNC<4>/2.0" is unused and has been removed.   Unused block "r337/u6/S0_1/XOR4_F_SUM_2/r337/u6/FUNC<4>/2.0" (X_XOR2) removed.The signal "r337/u6/FUNC<3>" is unused and has been removed. Unused block "r337/u6/S0_1/XOR3_G_SUM_1/r337/u6/FUNC<3>" (X_XOR2) removed.  The signal "r337/u6/FUNC<3>/2.0" is unused and has been removed.   Unused block "r337/u6/S0_1/XOR3_G_SUM_1/r337/u6/FUNC<3>/2.0" (X_XOR2) removed.The signal "I_0/add_122/u6/FUNC<5>" is unused and has been removed. Unused block "I_0/add_122/u6/S0_1/XOR5_G_SUM_2/I_0/add_122/u6/FUNC<5>" (X_XOR2)removed.  The signal "I_0/add_122/u6/FUNC<5>/2.0" is unused and has been removed.   Unused block "I_0/add_122/u6/S0_1/XOR5_G_SUM_2/I_0/add_122/u6/FUNC<5>/2.0"(X_XOR2) removed.The signal "I_1/add_122/u6/FUNC<5>" is unused and has been removed. Unused block "I_1/add_122/u6/S0_1/XOR5_G_SUM_2/I_1/add_122/u6/FUNC<5>" (X_XOR2)removed.  The signal "I_1/add_122/u6/FUNC<5>/2.0" is unused and has been removed.   Unused block "I_1/add_122/u6/S0_1/XOR5_G_SUM_2/I_1/add_122/u6/FUNC<5>/2.0"(X_XOR2) removed.The signal "I_0/add_136/u8/FUNC<7>" is unused and has been removed. Unused block "I_0/add_136/u8/S0_1/XOR7_G_SUM_3/I_0/add_136/u8/FUNC<7>" (X_XOR2)removed.  The signal "I_0/add_136/u8/FUNC<7>/2.0" is unused and has been removed.   Unused block "I_0/add_136/u8/S0_1/XOR7_G_SUM_3/I_0/add_136/u8/FUNC<7>/2.0"(X_XOR2) removed.Section 6 - Added Logic-----------------------Section 7 - Expanded Logic--------------------------To enable this section, set the environment variable MAP_REPORT_DETAIL to TRUEand rerun MAP.Section 8 - Signal Cross-Reference----------------------------------To enable this section, set the environment variable MAP_REPORT_DETAIL to TRUEand rerun MAP.Section 9 - Symbol Cross-Reference----------------------------------To enable this section, set the environment variable MAP_REPORT_DETAIL to TRUEand rerun MAP.Section 10 - IOB Properties---------------------------"ST_A" (IOB) : SLEW=SLOW"ST_B" (IOB) : SLEW=SLOWSection 11 - RPMs-----------------Section 12 - Guide Report-------------------------Guide not run on this design.