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Fixed typo in IFU

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This commit is contained in:
David Harris 2023-12-20 20:22:17 -08:00
parent 09ea6e6485
commit 06ddccd983
1 changed files with 4 additions and 2 deletions
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src/ifu/ifu.sv
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@ -311,7 +311,7 @@ module ifu import cvw::*; #(parameter cvw_t P) (
// add 2 or 4 to the PC, based on whether the instruction is 16 bits or 32 // add 2 or 4 to the PC, based on whether the instruction is 16 bits or 32
assign PCPlus4F = PCF[P.XLEN-1:2] + 1; // add 4 to PC assign PCPlus4F = PCF[P.XLEN-1:2] + 1; // add 4 to PC
if (P.COMPRESSED_SUPPORTED) if (P.COMPRESSED_SUPPORTED) begin: pcadd
// choose PC+2 or PC+4 based on CompressedF, which arrives later. // choose PC+2 or PC+4 based on CompressedF, which arrives later.
// Speeds up critical path as compared to selecting adder input based on CompressedF // Speeds up critical path as compared to selecting adder input based on CompressedF
always_comb always_comb
@ -319,7 +319,9 @@ module ifu import cvw::*; #(parameter cvw_t P) (
if (PCF[1]) PCPlus2or4F = {PCPlus4F, 2'b00}; if (PCF[1]) PCPlus2or4F = {PCPlus4F, 2'b00};
else PCPlus2or4F = {PCF[P.XLEN-1:2], 2'b10}; else PCPlus2or4F = {PCF[P.XLEN-1:2], 2'b10};
else PCPlus2or4F = {PCPlus4F, PCF[1:0]}; // add 4 else PCPlus2or4F = {PCPlus4F, PCF[1:0]}; // add 4
else PCPlus2or4F = {PCPlus4F, PCF[1:0]}; // always add 4 if compressed instructions are not supported end else begin: pcadd
assign PCPlus2or4F = {PCPlus4F, PCF[1:0]}; // always add 4 if compressed instructions are not supported
end
//////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////
// Branch and Jump Predictor // Branch and Jump Predictor