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fix operator for dm.sv

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James Stine 2024-06-04 10:57:56 -05:00
parent 1deb44b0fc
commit bdbd310bb4
1 changed files with 16 additions and 16 deletions
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32
src/debug/dm.sv
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@ -77,7 +77,7 @@ module dm import cvw::*; #(parameter cvw_t P) (
logic HaltOnReset; logic HaltOnReset;
logic Halted; logic Halted;
hartcontrol hartcontrol(.clk, .rst(rst || ~DmActive), .NdmReset, .HaltReq, hartcontrol hartcontrol(.clk, .rst(rst | ~DmActive), .NdmReset, .HaltReq,
.ResumeReq, .HaltOnReset, .DebugStall, .Halted, .AllRunning, .ResumeReq, .HaltOnReset, .DebugStall, .Halted, .AllRunning,
.AnyRunning, .AllHalted, .AnyHalted, .AllResumeAck, .AnyResumeAck); .AnyRunning, .AllHalted, .AnyHalted, .AllResumeAck, .AnyResumeAck);
@ -184,7 +184,7 @@ module dm import cvw::*; #(parameter cvw_t P) (
ConfStrPtrValid <= 0; ConfStrPtrValid <= 0;
CmdErr <= 0; CmdErr <= 0;
if (ReqValid) begin if (ReqValid) begin
if (ReqAddress == `DMCONTROL && ReqOP == `OP_WRITE && ReqData[`DMACTIVE]) begin if (ReqAddress == `DMCONTROL & ReqOP == `OP_WRITE & ReqData[`DMACTIVE]) begin
DmActive <= ReqData[`DMACTIVE]; DmActive <= ReqData[`DMACTIVE];
RspOP <= `OP_SUCCESS; RspOP <= `OP_SUCCESS;
end end
@ -247,7 +247,7 @@ module dm import cvw::*; #(parameter cvw_t P) (
W_DMCONTROL : begin W_DMCONTROL : begin
// While an abstract command is executing (busy in abstractcs is high), a debugger must not change // While an abstract command is executing (busy in abstractcs is high), a debugger must not change
// hartsel, and must not write 1 to haltreq, resumereq, ackhavereset, setresethaltreq, or clrresethaltreq // hartsel, and must not write 1 to haltreq, resumereq, ackhavereset, setresethaltreq, or clrresethaltreq
if (Busy && (ReqData[`HALTREQ] || ReqData[`RESUMEREQ] || ReqData[`SETRESETHALTREQ] || ReqData[`CLRRESETHALTREQ])) if (Busy & (ReqData[`HALTREQ] | ReqData[`RESUMEREQ] | ReqData[`SETRESETHALTREQ] | ReqData[`CLRRESETHALTREQ]))
CmdErr <= ~|CmdErr ? `CMDERR_BUSY : CmdErr; CmdErr <= ~|CmdErr ? `CMDERR_BUSY : CmdErr;
else begin else begin
HaltReq <= ReqData[`HALTREQ]; HaltReq <= ReqData[`HALTREQ];
@ -316,7 +316,7 @@ module dm import cvw::*; #(parameter cvw_t P) (
else if (~ReqData[`TRANSFER]); // If not TRANSFER, do nothing else if (~ReqData[`TRANSFER]); // If not TRANSFER, do nothing
else if (InvalidRegNo) else if (InvalidRegNo)
CmdErr <= `CMDERR_EXCEPTION; // If InvalidRegNo, set CmdErr, do nothing CmdErr <= `CMDERR_EXCEPTION; // If InvalidRegNo, set CmdErr, do nothing
else if (ReqData[`AARWRITE] && RegReadOnly) else if (ReqData[`AARWRITE] & RegReadOnly)
CmdErr <= `CMDERR_NOT_SUPPORTED; // If writing to a read only register, set CmdErr, do nothing CmdErr <= `CMDERR_NOT_SUPPORTED; // If writing to a read only register, set CmdErr, do nothing
else begin else begin
AcWrite <= ReqData[`AARWRITE]; AcWrite <= ReqData[`AARWRITE];
@ -374,7 +374,7 @@ module dm import cvw::*; #(parameter cvw_t P) (
AC_SCAN : begin AC_SCAN : begin
if (Cycle == ScanChainLen) if (Cycle == ScanChainLen)
AcState <= (GPRRegNo && AcWrite) ? AC_GPRUPDATE : AC_IDLE; AcState <= (GPRRegNo & AcWrite) ? AC_GPRUPDATE : AC_IDLE;
else else
Cycle <= Cycle + 1; Cycle <= Cycle + 1;
end end
@ -391,12 +391,12 @@ module dm import cvw::*; #(parameter cvw_t P) (
assign DebugGPRUpdate = (AcState == AC_GPRUPDATE); assign DebugGPRUpdate = (AcState == AC_GPRUPDATE);
// Scan Chain // Scan Chain
assign GPRSel = GPRRegNo && (AcState != AC_IDLE); assign GPRSel = GPRRegNo & (AcState != AC_IDLE);
assign ScanReg[P.XLEN] = GPRSel ? GPRScanIn : ScanIn; assign ScanReg[P.XLEN] = GPRSel ? GPRScanIn : ScanIn;
assign ScanOut = GPRSel ? 1'b0 : ScanReg[0]; assign ScanOut = GPRSel ? 1'b0 : ScanReg[0];
assign GPRScanOut = GPRSel ? ScanReg[0] : 1'b0; assign GPRScanOut = GPRSel ? ScanReg[0] : 1'b0;
assign ScanEn = ~GPRSel && (AcState == AC_SCAN); assign ScanEn = ~GPRSel & (AcState == AC_SCAN);
assign GPRScanEn = GPRSel && (AcState == AC_SCAN); assign GPRScanEn = GPRSel & (AcState == AC_SCAN);
// Load data from message registers into scan chain // Load data from message registers into scan chain
if (P.XLEN == 32) if (P.XLEN == 32)
@ -406,30 +406,30 @@ module dm import cvw::*; #(parameter cvw_t P) (
else if (P.XLEN == 128) else if (P.XLEN == 128)
assign PackedDataReg = {Data3,Data2,Data1,Data0}; assign PackedDataReg = {Data3,Data2,Data1,Data0};
assign WriteScanReg = AcWrite && (~GPRRegNo && (Cycle == ShiftCount) || GPRRegNo && (Cycle == 0)); assign WriteScanReg = AcWrite & (~GPRRegNo & (Cycle == ShiftCount) | GPRRegNo & (Cycle == 0));
genvar i; genvar i;
for (i=0; i<P.XLEN; i=i+1) begin for (i=0; i<P.XLEN; i=i+1) begin
// ARMask is used as write enable for subword overwrites (basic mask would overwrite neighbors in the chain) // ARMask is used as write enable for subword overwrites (basic mask would overwrite neighbors in the chain)
assign ScanNext[i] = WriteScanReg && ARMask[i] ? PackedDataReg[i] : ScanReg[i+1]; assign ScanNext[i] = WriteScanReg & ARMask[i] ? PackedDataReg[i] : ScanReg[i+1];
flopenr #(1) scanreg (.clk, .reset(rst), .en(AcState == AC_SCAN), .d(ScanNext[i]), .q(ScanReg[i])); flopenr #(1) scanreg (.clk, .reset(rst), .en(AcState == AC_SCAN), .d(ScanNext[i]), .q(ScanReg[i]));
end end
// Message Registers // Message Registers
assign MaskedScanReg = ARMask & ScanReg[P.XLEN:1]; assign MaskedScanReg = ARMask & ScanReg[P.XLEN:1];
assign WriteMsgReg = (State == W_DATA) && ~Busy; assign WriteMsgReg = (State == W_DATA) & ~Busy;
assign StoreScanChain = (AcState == AC_SCAN) && (Cycle == ShiftCount) && ~AcWrite; assign StoreScanChain = (AcState == AC_SCAN) & (Cycle == ShiftCount) & ~AcWrite;
assign Data0Wr = StoreScanChain ? MaskedScanReg[31:0] : ReqData;; assign Data0Wr = StoreScanChain ? MaskedScanReg[31:0] : ReqData;;
flopenr #(32) data0reg (.clk, .reset(rst), .en(StoreScanChain || WriteMsgReg && (ReqAddress == `DATA0)), .d(Data0Wr), .q(Data0)); flopenr #(32) data0reg (.clk, .reset(rst), .en(StoreScanChain | WriteMsgReg & (ReqAddress == `DATA0)), .d(Data0Wr), .q(Data0));
if (P.XLEN >= 64) begin if (P.XLEN >= 64) begin
assign Data1Wr = StoreScanChain ? MaskedScanReg[63:32] : ReqData; assign Data1Wr = StoreScanChain ? MaskedScanReg[63:32] : ReqData;
flopenr #(32) data1reg (.clk, .reset(rst), .en(StoreScanChain || WriteMsgReg && (ReqAddress == `DATA1)), .d(Data1Wr), .q(Data1)); flopenr #(32) data1reg (.clk, .reset(rst), .en(StoreScanChain | WriteMsgReg & (ReqAddress == `DATA1)), .d(Data1Wr), .q(Data1));
end end
if (P.XLEN == 128) begin if (P.XLEN == 128) begin
assign Data2Wr = StoreScanChain ? MaskedScanReg[95:64] : ReqData; assign Data2Wr = StoreScanChain ? MaskedScanReg[95:64] : ReqData;
assign Data3Wr = StoreScanChain ? MaskedScanReg[127:96] : ReqData; assign Data3Wr = StoreScanChain ? MaskedScanReg[127:96] : ReqData;
flopenr #(32) data2reg (.clk, .reset(rst), .en(StoreScanChain || WriteMsgReg && (ReqAddress == `DATA2)), .d(Data2Wr), .q(Data2)); flopenr #(32) data2reg (.clk, .reset(rst), .en(StoreScanChain | WriteMsgReg & (ReqAddress == `DATA2)), .d(Data2Wr), .q(Data2));
flopenr #(32) data3reg (.clk, .reset(rst), .en(StoreScanChain || WriteMsgReg && (ReqAddress == `DATA3)), .d(Data3Wr), .q(Data3)); flopenr #(32) data3reg (.clk, .reset(rst), .en(StoreScanChain | WriteMsgReg & (ReqAddress == `DATA3)), .d(Data3Wr), .q(Data3));
end end
rad #(P) regnodecode(.AarSize(ReqData[`AARSIZE]),.Regno(ReqData[`REGNO]),.GPRRegNo,.ScanChainLen,.ShiftCount,.InvalidRegNo,.RegReadOnly,.GPRAddr,.ARMask); rad #(P) regnodecode(.AarSize(ReqData[`AARSIZE]),.Regno(ReqData[`REGNO]),.GPRRegNo,.ScanChainLen,.ShiftCount,.InvalidRegNo,.RegReadOnly,.GPRAddr,.ARMask);