More unused signal cleanup

pipelined/src/ifu/ifu.sv

@@ -65,7 +65,6 @@ module ifu (
 	output logic 				InstrPageFaultF,
 	output logic 				IllegalIEUInstrFaultD,
 	output logic 				InstrMisalignedFaultM,
-	input logic 				ExceptionM,
 	// mmu management
 	input logic [1:0] 			PrivilegeModeW,
 	input logic [`XLEN-1:0] 	PTE,
@@ -183,11 +182,9 @@ module ifu (
     localparam integer   WORDSPERLINE = (CACHE_ENABLED) ? `ICACHE_LINELENINBITS/`XLEN : 1;
     localparam integer   LINELEN = (CACHE_ENABLED) ? `ICACHE_LINELENINBITS : `XLEN;
     localparam integer   LOGWPL = (`DMEM == `MEM_CACHE) ? $clog2(WORDSPERLINE) : 1;
-    logic [LINELEN-1:0]  ReadDataLine;
     logic [LINELEN-1:0]  ICacheBusWriteData;
     logic [`PA_BITS-1:0] ICacheBusAdr;
     logic                ICacheBusAck;
-    logic [31:0]         temp;
     logic                SelUncachedAdr;
     
     busdp #(WORDSPERLINE, LINELEN, LOGWPL, CACHE_ENABLED) 

pipelined/src/lsu/lsu.sv

@@ -93,7 +93,7 @@ module lsu (
   logic [6:0]               LSUFunct7M;
   logic [1:0]               LSUAtomicM;
   (* mark_debug = "true" *)  logic [`XLEN+1:0] 		   PreLSUPAdrM;
-  logic [11:0]              PreLSUAdrE, LSUAdrE;  
+  logic [11:0]              LSUAdrE;  
   logic                     CPUBusy;
   logic                     DCacheStallM;
   logic                     CacheableM;
@@ -131,7 +131,7 @@ module lsu (
   end else begin
     assign {InterlockStall, SelHPTW, PTE, PageType, DTLBWriteM, ITLBWriteF, IgnoreRequestTLB} = '0;
     assign IgnoreRequestTrapM = TrapM; assign CPUBusy = StallW; assign PreLSURWM = MemRWM; 
-    assign LSUAdrE = PreLSUAdrE; assign PreLSUAdrE = IEUAdrE[11:0]; 
+    assign LSUAdrE = IEUAdrE[11:0]; 
     assign PreLSUPAdrM = IEUAdrExtM;
     assign LSUFunct3M = Funct3M;  assign LSUFunct7M = Funct7M; assign LSUAtomicM = AtomicM;
     assign LSUWriteDataM = WriteDataM;
@@ -202,13 +202,11 @@ module lsu (
     localparam integer   WORDSPERLINE = (CACHE_ENABLED) ? `DCACHE_LINELENINBITS/`XLEN : 1;
     localparam integer   LINELEN = (CACHE_ENABLED) ? `DCACHE_LINELENINBITS : `XLEN;
     localparam integer   LOGWPL = (CACHE_ENABLED) ? $clog2(WORDSPERLINE) : 1;
-    logic [LINELEN-1:0]  ReadDataLineM;
     logic [LINELEN-1:0]  DCacheBusWriteData;
     logic [`PA_BITS-1:0] DCacheBusAdr;
     logic                DCacheWriteLine;
     logic                DCacheFetchLine;
     logic                DCacheBusAck;
-    logic                SelBus;
     logic [LOGWPL-1:0]   WordCount;
             
     busdp #(WORDSPERLINE, LINELEN, LOGWPL, CACHE_ENABLED) busdp(

pipelined/src/privileged/privileged.sv

@@ -69,7 +69,6 @@ module privileged (
   input logic StoreAmoAccessFaultM,
   input logic SelHPTW,
 
-  output logic 		   ExceptionM,
   output logic		   IllegalFPUInstrE,
   output logic [1:0]       PrivilegeModeW,
   output logic [`XLEN-1:0] SATP_REGW,
@@ -228,8 +227,7 @@ module privileged (
             .InstrValidM, .CommittedM,  
             .TrapM, .MTrapM, .STrapM, .RetM,
             .InterruptM, .IntPendingM,
-            .ExceptionM,
+             .PrivilegedNextPCM, .CauseM, .NextFaultMtvalM);
-            .PrivilegedNextPCM, .CauseM, .NextFaultMtvalM);
 endmodule
 
 

pipelined/src/privileged/trap.sv

@@ -48,13 +48,13 @@ module trap (
   input logic 		   InstrValidM, CommittedM, 
   output logic 		   TrapM, MTrapM, STrapM, RetM,
   output logic 		   InterruptM, IntPendingM,
-  output logic 		   ExceptionM,
   output logic [`XLEN-1:0] PrivilegedNextPCM, CauseM, NextFaultMtvalM
 //  output logic [11:0]     MIP_REGW, SIP_REGW, UIP_REGW, MIE_REGW, SIE_REGW, UIE_REGW,
 //  input  logic            WriteMIPM, WriteSIPM, WriteUIPM, WriteMIEM, WriteSIEM, WriteUIEM
 );
 
   logic MIntGlobalEnM, SIntGlobalEnM;
+  logic ExceptionM;
   (* mark_debug = "true" *) logic [11:0] PendingIntsM, ValidIntsM; 
   //logic InterruptM;
   logic [`XLEN-1:0] PrivilegedTrapVector, PrivilegedVectoredTrapVector;

pipelined/src/wally/wallypipelinedcore.sv

@@ -156,7 +156,6 @@ module wallypipelinedcore (
   logic             InstrAccessFaultF;
   logic [2:0]             LSUBusSize;
   
-  logic             ExceptionM;
   logic             DCacheMiss;
   logic             DCacheAccess;
   logic             ICacheMiss;
@@ -169,8 +168,6 @@ module wallypipelinedcore (
     .clk, .reset,
     .StallF, .StallD, .StallE, .StallM, .StallW,
     .FlushF, .FlushD, .FlushE, .FlushM, .FlushW,
-
-    .ExceptionM,
     // Fetch
     .IFUBusHRDATA, .IFUBusAck, .PCF, .IFUBusAdr,
     .IFUBusRead, .IFUStallF,
@@ -338,7 +335,7 @@ module wallypipelinedcore (
          // *** do these need to be split up into one for dmem and one for ifu?
          // instead, could we only care about the instr and F pins that come from ifu and only care about the load/store and m pins that come from dmem?
          .InstrAccessFaultF, .LoadAccessFaultM, .StoreAmoAccessFaultM, .SelHPTW,
-         .ExceptionM, .IllegalFPUInstrE,
+         .IllegalFPUInstrE,
          .PrivilegeModeW, .SATP_REGW,
          .STATUS_MXR, .STATUS_SUM, .STATUS_MPRV, .STATUS_MPP, .STATUS_FS,
          .PMPCFG_ARRAY_REGW, .PMPADDR_ARRAY_REGW,