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comments to bctrl

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This commit is contained in:
Kevin Kim 2023-03-03 08:41:47 -08:00
parent 11f165d1bb
commit 2b9a6aba91
1 changed files with 6 additions and 7 deletions
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13
src/ieu/bmu/bmuctrl.sv
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@ -35,14 +35,14 @@ module bmuctrl(
// Decode stage control signals
input logic StallD, FlushD, // Stall, flush Decode stage
input logic [31:0] InstrD, // Instruction in Decode stage
output logic [2:0] ALUSelectD, // ALU Mux select signal
output logic [2:0] ALUSelectD, // ALU Mux select signal in Decode Stage
output logic [3:0] BSelectD, // Indicates if ZBA_ZBB_ZBC_ZBS instruction in one-hot encoding in Decode stage
output logic [2:0] ZBBSelectD, // ZBB mux select signal in Decode stage NOTE: do we need this in decode?
output logic BRegWriteD, // Indicates if it is a R type B instruction
output logic BW64D, // Indiciates if it is a W type B instruction
output logic BALUOpD, // Indicates if it is an ALU B instruction
output logic BSubArithD, // Indicates if Bitmanip SubArith flag should be on
output logic IllegalBitmanipInstrD, // Indicates if it is unrecognized B instruction
output logic BRegWriteD, // Indicates if it is a R type B instruction in Decode Stage
output logic BW64D, // Indiciates if it is a W type B instruction in Decode Stage
output logic BALUOpD, // Indicates if it is an ALU B instruction in Decode Stage
output logic BSubArithD, // TRUE if ext, clr, andn, orn, xnor instruction in Decode Stage
output logic IllegalBitmanipInstrD, // Indicates if it is unrecognized B instruction in Decode Stage
// Execute stage control signals
input logic StallE, FlushE, // Stall, flush Execute stage
output logic [2:0] ALUSelectE,
@ -156,7 +156,6 @@ module bmuctrl(
endcase
// Unpack Control Signals
assign {ALUSelectD,BSelectD,ZBBSelectD, BRegWriteD, BW64D, BALUOpD, BSubArithD, IllegalBitmanipInstrD} = BMUControlsD;