top.syr

用VHDL语言开发的一个16位的具有5级流水线的CPU设计

WARNING:Xst:1710 - FF/Latch  <IDEX_A_3> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <IDEX_A_5> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <IDEX_A_4> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_15> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_OUT_3> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_13> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_12> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_11> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_10> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_9> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_8> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_7> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_OUT_1> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_5> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_4> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_3> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_2> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_1> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_OUT_15> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_OUT_14> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_OUT_13> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_OUT_12> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_OUT_11> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_IR_0> (without init value) has a constant value of 1 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_OUT_0> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <MEMWB_OUT_7> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_40> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_34> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_35> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_37> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_36> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_41> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_38> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_42> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_43> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_44> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_39> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_0> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_45> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_50> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_51> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_46> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <0> (without init value) has a constant value of 1 in block <CACHE_RD>.
WARNING:Xst:1710 - FF/Latch  <0> (without init value) has a constant value of 1 in block <CACHE_WR>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_61> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_56> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_60> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_5> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_4> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_55> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_49> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_54> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_53> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_48> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_3> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_2> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_47> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_1> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_52> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_6> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_57> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_62> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_58> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_7> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_59> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_63> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_8> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_9> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_10> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_11> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_14> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_12> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_13> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_15> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_20> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_33> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_29> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_32> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_27> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_28> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_31> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_30> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_25> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_26> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_19> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_23> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_24> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_22> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_18> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_21> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_16> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:1710 - FF/Latch  <EMPTY_17> (without init value) has a constant value of 1 in block <u2>.
WARNING:Xst:2677 - Node <CPU_CLK> of sequential type is unconnected in block <u3>.

=========================================================================
Advanced HDL Synthesis Report

Macro Statistics
# FSMs                                                 : 1
# Adders/Subtractors                                   : 2
 16-bit adder                                          : 1
 2-bit subtractor                                      : 1
# Counters                                             : 1
 16-bit up counter                                     : 1
# Registers                                            : 122
 Flip-Flops                                            : 122
# Latches                                              : 20
 1-bit latch                                           : 12
 16-bit latch                                          : 4
 2-bit latch                                           : 1
 6-bit latch                                           : 1
 8-bit latch                                           : 2
# Comparators                                          : 2
 8-bit comparator equal                                : 1
 8-bit comparator not equal                            : 1
# Multiplexers                                         : 33
 1-bit 64-to-1 multiplexer                             : 1
 1-bit 8-to-1 multiplexer                              : 32

=========================================================================

=========================================================================
*                         Low Level Synthesis                           *
=========================================================================
WARNING:Xst:1710 - FF/Latch  <PC_0> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_1> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_2> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_3> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_4> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_5> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_6> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_7> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_8> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_9> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_10> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_11> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_12> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_13> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_14> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:1710 - FF/Latch  <PC_15> (without init value) has a constant value of 0 in block <kernel>.
WARNING:Xst:2677 - Node <u3/CPU_CLK> of sequential type is unconnected in block <top>.

Optimizing unit <top> ...

Optimizing unit <cache> ...
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_52> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_46> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_51> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_50> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_45> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_0> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_39> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_44> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_43> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_42> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_38> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_41> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_36> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_37> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_35> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_34> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_40> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_33> (without init value) has a constant value of 1 in block <top>.
WARNING:Xst:1710 - FF/Latch  <u2/EMPTY_29> (without init value) has a constant value of 1 in block <top>.
WARNING:X