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slmnemo 2021-11-17 13:38:51 -08:00
commit df6c54a664

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@ -194,7 +194,43 @@ module wallypipelinedhart (
); // instruction fetch unit: PC, branch prediction, instruction cache
ieu ieu(.*); // integer execution unit: integer register file, datapath and controller
ieu ieu(
.clk, .reset,
// Decode Stage interface
.InstrD, .IllegalIEUInstrFaultD,
.IllegalBaseInstrFaultD,
// Execute Stage interface
.PCE, .PCLinkE, .FWriteIntE, .IllegalFPUInstrE,
.FWriteDataE, .PCTargetE, .MulDivE, .W64E,
.Funct3E, .ForwardedSrcAE, .ForwardedSrcBE, // *** these are the src outputs before the mux choosing between them and PCE to put in srcA/B
.SrcAE, .SrcBE, .FWriteIntM,
// Memory stage interface
.SquashSCW, // from LSU
.MemRWM, // read/write control goes to LSU
.AtomicE, // atomic control goes to LSU
.AtomicM, // atomic control goes to LSU
.MemAdrM, .MemAdrE, .WriteDataM, // Address and write data to LSU
.Funct3M, // size and signedness to LSU
.SrcAM, // to privilege and fpu
.RdM, .FIntResM, .InvalidateICacheM, .FlushDCacheM,
// Writeback stage
.CSRReadValW, .ReadDataM, .MulDivResultW,
.FWriteIntW, .RdW, .ReadDataW,
.InstrValidM,
// hazards
.StallD, .StallE, .StallM, .StallW,
.FlushD, .FlushE, .FlushM, .FlushW,
.FPUStallD, .LoadStallD, .MulDivStallD, .CSRRdStallD,
.PCSrcE,
.CSRReadM, .CSRWriteM, .PrivilegedM,
.CSRWritePendingDEM, .StoreStallD
); // integer execution unit: integer register file, datapath and controller
lsu lsu(.clk(clk),
.reset(reset),