diff --git a/pipelined/regression/wave.do b/pipelined/regression/wave.do
index be29ed870..393f6ee11 100644
--- a/pipelined/regression/wave.do
+++ b/pipelined/regression/wave.do
@@ -41,12 +41,12 @@ add wave -noupdate -group {instruction pipeline} /testbench/dut/core/ifu/PostSpi
add wave -noupdate -group {instruction pipeline} /testbench/dut/core/ifu/InstrD
add wave -noupdate -group {instruction pipeline} /testbench/dut/core/ifu/InstrE
add wave -noupdate -group {instruction pipeline} /testbench/dut/core/ifu/InstrM
-add wave -noupdate -expand -group PCS /testbench/dut/core/ifu/PCNextF
-add wave -noupdate -expand -group PCS /testbench/dut/core/PCF
-add wave -noupdate -expand -group PCS /testbench/dut/core/ifu/PCD
-add wave -noupdate -expand -group PCS /testbench/dut/core/PCE
-add wave -noupdate -expand -group PCS /testbench/dut/core/PCM
-add wave -noupdate -expand -group PCS /testbench/PCW
+add wave -noupdate -group PCS /testbench/dut/core/ifu/PCNextF
+add wave -noupdate -group PCS /testbench/dut/core/PCF
+add wave -noupdate -group PCS /testbench/dut/core/ifu/PCD
+add wave -noupdate -group PCS /testbench/dut/core/PCE
+add wave -noupdate -group PCS /testbench/dut/core/PCM
+add wave -noupdate -group PCS /testbench/PCW
add wave -noupdate -group {Decode Stage} /testbench/dut/core/ifu/PCD
add wave -noupdate -group {Decode Stage} /testbench/dut/core/ifu/InstrD
add wave -noupdate -group {Decode Stage} /testbench/InstrDName
@@ -55,15 +55,15 @@ add wave -noupdate -group {Decode Stage} /testbench/dut/core/ieu/c/RegWriteD
add wave -noupdate -group {Decode Stage} /testbench/dut/core/ieu/dp/RdD
add wave -noupdate -group {Decode Stage} /testbench/dut/core/ieu/dp/Rs1D
add wave -noupdate -group {Decode Stage} /testbench/dut/core/ieu/dp/Rs2D
-add wave -noupdate -expand -group {Execution Stage} /testbench/dut/core/ifu/PCE
-add wave -noupdate -expand -group {Execution Stage} /testbench/dut/core/ifu/InstrE
-add wave -noupdate -expand -group {Execution Stage} /testbench/InstrEName
-add wave -noupdate -expand -group {Execution Stage} /testbench/dut/core/ieu/c/InstrValidE
-add wave -noupdate -expand -group {Execution Stage} /testbench/FunctionName/FunctionName/FunctionName
-add wave -noupdate -expand -group {Memory Stage} /testbench/dut/core/PCM
-add wave -noupdate -expand -group {Memory Stage} /testbench/dut/core/InstrM
-add wave -noupdate -expand -group {Memory Stage} /testbench/InstrMName
-add wave -noupdate -expand -group {Memory Stage} /testbench/dut/core/lsu/IEUAdrM
+add wave -noupdate -group {Execution Stage} /testbench/dut/core/ifu/PCE
+add wave -noupdate -group {Execution Stage} /testbench/dut/core/ifu/InstrE
+add wave -noupdate -group {Execution Stage} /testbench/InstrEName
+add wave -noupdate -group {Execution Stage} /testbench/dut/core/ieu/c/InstrValidE
+add wave -noupdate -group {Execution Stage} /testbench/FunctionName/FunctionName/FunctionName
+add wave -noupdate -group {Memory Stage} /testbench/dut/core/PCM
+add wave -noupdate -group {Memory Stage} /testbench/dut/core/InstrM
+add wave -noupdate -group {Memory Stage} /testbench/InstrMName
+add wave -noupdate -group {Memory Stage} /testbench/dut/core/lsu/IEUAdrM
add wave -noupdate -group {WriteBack stage} /testbench/PCW
add wave -noupdate -group {WriteBack stage} /testbench/InstrW
add wave -noupdate -group {WriteBack stage} /testbench/InstrWName
@@ -85,25 +85,18 @@ add wave -noupdate -group CSRs /testbench/dut/core/priv/priv/csr/SEPC_REGW
add wave -noupdate -group CSRs /testbench/dut/core/priv/priv/csr/SSTATUS_REGW
add wave -noupdate -group CSRs /testbench/dut/core/priv/priv/csr/STVEC_REGW
add wave -noupdate -group Bpred -group {branch update selection inputs} -divider {class check}
-add wave -noupdate -group Bpred -expand -group prediction /testbench/dut/core/ifu/bpred/bpred/BTBValidF
-add wave -noupdate -group Bpred -expand -group prediction /testbench/dut/core/ifu/bpred/bpred/BPInstrClassF
-add wave -noupdate -group Bpred -expand -group prediction /testbench/dut/core/ifu/bpred/bpred/BTBPredPCF
-add wave -noupdate -group Bpred -expand -group prediction /testbench/dut/core/ifu/bpred/bpred/RASPCF
-add wave -noupdate -group Bpred -expand -group prediction /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/LookUpPCIndex
-add wave -noupdate -group Bpred -expand -group prediction /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/TargetPC
-add wave -noupdate -group Bpred -expand -group prediction -expand -group ex /testbench/dut/core/ifu/bpred/bpred/PCSrcE
-add wave -noupdate -group Bpred -expand -group update -expand -group BTB /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/UpdatePCIndex
-add wave -noupdate -group Bpred -expand -group update -expand -group BTB /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/UpdateTarget
-add wave -noupdate -group Bpred -expand -group update -expand -group BTB /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/UpdateEN
-add wave -noupdate -group Bpred -expand -group update -expand -group BTB /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/UpdatePC
-add wave -noupdate -group Bpred -expand -group update -expand -group BTB /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/UpdateTarget
-add wave -noupdate -group Bpred -expand -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/TargetWrongE
-add wave -noupdate -group Bpred -expand -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/FallThroughWrongE
-add wave -noupdate -group Bpred -expand -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/PredictionPCWrongE
-add wave -noupdate -group Bpred -expand -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/InstrClassE
-add wave -noupdate -group Bpred -expand -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/PredictionInstrClassWrongE
-add wave -noupdate -group Bpred -expand -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/BPPredClassNonCFIWrongE
-add wave -noupdate -group Bpred -expand -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/BPPredWrongE
+add wave -noupdate -group Bpred -group prediction /testbench/dut/core/ifu/bpred/bpred/BTBValidF
+add wave -noupdate -group Bpred -group prediction /testbench/dut/core/ifu/bpred/bpred/BTBPredPCF
+add wave -noupdate -group Bpred -group prediction /testbench/dut/core/ifu/bpred/bpred/RASPCF
+add wave -noupdate -group Bpred -group prediction -expand -group ex /testbench/dut/core/ifu/bpred/bpred/PCSrcE
+add wave -noupdate -group Bpred -group update -expand -group BTB /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/UpdateEN
+add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/TargetWrongE
+add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/FallThroughWrongE
+add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/PredictionPCWrongE
+add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/InstrClassE
+add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/PredictionInstrClassWrongE
+add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/BPPredClassNonCFIWrongE
+add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/BPPredWrongE
add wave -noupdate -group Bpred /testbench/dut/core/ifu/bpred/bpred/BPPredWrongE
add wave -noupdate -group {PCNext Generation} /testbench/dut/core/ifu/PCNextF
add wave -noupdate -group {PCNext Generation} /testbench/dut/core/ifu/PCF
@@ -148,20 +141,15 @@ add wave -noupdate -group Forward /testbench/dut/core/ieu/fw/RdW
add wave -noupdate -group {alu execution stage} /testbench/dut/core/ieu/dp/ALUResultE
add wave -noupdate -group {alu execution stage} /testbench/dut/core/ieu/dp/SrcAE
add wave -noupdate -group {alu execution stage} /testbench/dut/core/ieu/dp/SrcBE
-add wave -noupdate -group AHB -expand -group multicontroller -color Gold /testbench/dut/core/ebu/ebu/CurrState
add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/IFUReq
add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/LSUReq
-add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/both
add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/IFUSave
add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/IFURestore
add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/IFUDisable
add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/LSUDisable
add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/IFUSelect
add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/LSUSelect
-add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/BeatCount
-add wave -noupdate -group AHB -expand -group multicontroller /testbench/dut/core/ebu/ebu/FinalBeat
add wave -noupdate -group AHB /testbench/dut/core/ebu/ebu/HTRANS
-add wave -noupdate -group AHB /testbench/dut/core/ebu/ebu/Threshold
add wave -noupdate -group AHB /testbench/dut/core/ebu/ebu/HBURST
add wave -noupdate -group AHB -expand -group IFU /testbench/dut/core/ebu/ebu/IFUHTRANS
add wave -noupdate -group AHB -expand -group IFU /testbench/dut/core/ebu/ebu/IFUHADDR
@@ -463,10 +451,6 @@ add wave -noupdate -group {debug trace} -expand -group mem /testbench/dut/core/P
add wave -noupdate -group {debug trace} -expand -group mem -color Brown /testbench/dut/core/hzu/TrapM
add wave -noupdate -group {debug trace} -expand -group wb /testbench/PCW
add wave -noupdate -group {pc selection} /testbench/dut/core/ifu/PCNext2F
-add wave -noupdate -group ifu -expand -group spill /testbench/dut/core/ifu/SpillSupport/spillsupport/SpillF
-add wave -noupdate -group ifu -expand -group spill /testbench/dut/core/ifu/SpillSupport/spillsupport/CurrState
-add wave -noupdate -group ifu -expand -group spill /testbench/dut/core/ifu/SpillSupport/spillsupport/SpillDataLine0
-add wave -noupdate -group ifu -expand -group spill /testbench/dut/core/ifu/SpillSupport/spillsupport/SelSpillF
add wave -noupdate -group ifu /testbench/dut/core/ifu/InstrRawF
add wave -noupdate -group ifu /testbench/dut/core/ifu/PostSpillInstrRawF
add wave -noupdate -group ifu -expand -group bus /testbench/dut/core/ifu/bus/icache/ahbcacheinterface/HSIZE
@@ -484,7 +468,6 @@ add wave -noupdate -group ifu -expand -group icache /testbench/dut/core/ifu/PCPF
add wave -noupdate -group ifu -expand -group icache /testbench/dut/core/ifu/bus/icache/icache/cachefsm/AnyMiss
add wave -noupdate -group ifu -expand -group icache -expand -group {fsm out and control} /testbench/dut/core/ifu/bus/icache/icache/HitWay
add wave -noupdate -group ifu -expand -group icache -expand -group {fsm out and control} /testbench/dut/core/ifu/ICacheStallF
-add wave -noupdate -group ifu -expand -group icache -expand -group {fsm out and control} /testbench/dut/core/ifu/FinalInstrRawF
add wave -noupdate -group ifu -expand -group icache -expand -group memory /testbench/dut/core/ifu/bus/icache/icache/CacheBusAdr
add wave -noupdate -group ifu -expand -group icache -expand -group memory /testbench/dut/core/ifu/bus/icache/icache/cachefsm/CacheBusAck
add wave -noupdate -group ifu -expand -group icache /testbench/dut/core/ifu/bus/icache/icache/VictimWay
@@ -571,7 +554,6 @@ add wave -noupdate -group FPU /testbench/dut/core/fpu/fpu/FRD3E
add wave -noupdate -group FPU /testbench/dut/core/fpu/fpu/ForwardedSrcAE
add wave -noupdate -group FPU /testbench/dut/core/fpu/fpu/ForwardedSrcBE
add wave -noupdate -group FPU /testbench/dut/core/fpu/fpu/Funct3E
-add wave -noupdate -group FPU /testbench/dut/core/fpu/fpu/MDUE
add wave -noupdate -group FPU /testbench/dut/core/fpu/fpu/W64E
add wave -noupdate -group FPU /testbench/dut/core/fpu/fpu/unpack/X
add wave -noupdate -group FPU /testbench/dut/core/fpu/fpu/unpack/Y
@@ -603,8 +585,15 @@ add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/Predictor/DirPredictor/Br
add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/Predictor/DirPredictor/BranchInstrM
add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/Predictor/DirPredictor/NewDirPredictionF
add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/Predictor/DirPredictor/NewDirPredictionW
+add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/memory/ra1
+add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/memory/rd1
+add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/PCE
+add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/IEUAdrE
+add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/TargetPredictor/UpdateEN
+add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/PredictionInstrClassWrongE
+add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/WrongPredInstrClassD
TreeUpdate [SetDefaultTree]
-WaveRestoreCursors {{Cursor 2} {314596 ns} 1} {{Cursor 3} {314460 ns} 1} {{Cursor 4} {219681 ns} 1} {{Cursor 4} {341201 ns} 1} {{Cursor 5} {116741 ns} 0}
+WaveRestoreCursors {{Cursor 2} {314596 ns} 1} {{Cursor 3} {314460 ns} 1} {{Cursor 4} {219681 ns} 1} {{Cursor 4} {341201 ns} 1} {{Cursor 5} {125611 ns} 0}
quietly wave cursor active 5
configure wave -namecolwidth 250
configure wave -valuecolwidth 194
@@ -620,4 +609,4 @@ configure wave -griddelta 40
configure wave -timeline 0
configure wave -timelineunits ns
update
-WaveRestoreZoom {118528 ns} {128752 ns}
+WaveRestoreZoom {79760 ns} {171462 ns}
diff --git a/pipelined/src/ifu/brpred/RAsPredictor.sv b/pipelined/src/ifu/brpred/RAsPredictor.sv
index 422a785cc..28d15ebbe 100644
--- a/pipelined/src/ifu/brpred/RAsPredictor.sv
+++ b/pipelined/src/ifu/brpred/RAsPredictor.sv
@@ -32,15 +32,13 @@ module RASPredictor
#(parameter int StackSize = 16
)
(input logic clk,
- input logic reset, StallF, StallD, StallE,
+ input logic reset, StallF, StallD, StallE, StallM, FlushD, FlushE, FlushM,
output logic [`XLEN-1:0] RASPCF,
input logic [3:0] WrongPredInstrClassD,
input logic [3:0] InstrClassD, InstrClassE, PredInstrClassF,
input logic [`XLEN-1:0] PCLinkE
);
- // *** need to update so it either doesn't push until the memory stage
- // or need to repair flushed push.
// *** need to repair popped and then flushed returns.
logic CounterEn;
localparam Depth = $clog2(StackSize);
@@ -50,19 +48,20 @@ module RASPredictor
integer index;
logic PopF;
logic PushE;
+ logic RepairD;
- assign PopF = PredInstrClassF[2] & ~StallF;
- assign PushE = InstrClassE[3] & ~StallE;
+ assign PopF = PredInstrClassF[2] & ~StallD & ~FlushD;
+ assign RepairD = InstrClassD[2] & ~StallE & ~FlushE;
+ assign PushE = InstrClassE[3] & ~StallM & ~FlushM;
assign CounterEn = PopF | PushE | WrongPredInstrClassD[2];
- assign PtrD = PopF | InstrClassD[2] ? PtrM1 : PtrP1;
+ assign PtrD = PopF | RepairD ? PtrM1 : PtrP1;
assign PtrM1 = PtrQ - 1'b1;
assign PtrP1 = PtrQ + 1'b1;
- // may have to handle a PushE and an incr at the same time.
// *** what happens if jal is executing and there is a return being flushed in Decode?
flopenr #(Depth) PTR(.clk(clk),
@@ -75,7 +74,7 @@ module RASPredictor
always_ff @ (posedge clk) begin
if(reset) begin
for(index=0; index<StackSize; index++)
- memory[index] <= {`XLEN{1'b0}};
+ memory[index] <= {`XLEN{1'b0}};
end else if(PushE) begin
memory[PtrP1] <= #1 PCLinkE;
end
diff --git a/pipelined/src/ifu/brpred/bpred.sv b/pipelined/src/ifu/brpred/bpred.sv
index 1669ee4f3..d9f342db1 100644
--- a/pipelined/src/ifu/brpred/bpred.sv
+++ b/pipelined/src/ifu/brpred/bpred.sv
@@ -147,7 +147,7 @@ module bpred (
// Part 3 RAS
// *** need to add the logic to restore RAS on flushes. We will use incr for this.
// *** needs to include flushX
- RASPredictor RASPredictor(.clk, .reset, .StallF, .StallD, .StallE,
+ RASPredictor RASPredictor(.clk, .reset, .StallF, .StallD, .StallE, .StallM, .FlushD, .FlushE, .FlushM,
.PredInstrClassF, .InstrClassD, .InstrClassE,
.WrongPredInstrClassD, .RASPCF, .PCLinkE);