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ZK simplification

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This commit is contained in:
David Harris 2024-03-10 21:35:20 -07:00
parent 955c131bd9
commit d0dd30822e
3 changed files with 18 additions and 33 deletions
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24
src/ieu/bmu/bitmanipalu.sv
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@ -115,32 +115,20 @@ module bitmanipalu import cvw::*; #(parameter cvw_t P) (
// ZKND Unit // ZKND Unit
if (P.ZKND_SUPPORTED) begin: zknd if (P.ZKND_SUPPORTED) begin: zknd
if (P.XLEN == 32) begin if (P.XLEN == 32) zknd32 #(P.XLEN) ZKND32(.A(ABMU), .B(BBMU), .Funct7, .ZKNDSelect(ZBBSelect[2:0]), .ZKNDResult);
zknd32 #(P.XLEN) ZKND32(.A(ABMU), .B(BBMU), .Funct7, .ZKNDSelect(ZBBSelect[2:0]), .ZKNDResult); else zknd64 #(P.XLEN) ZKND64(.A(ABMU), .B(BBMU), .Funct7, .RNUM(Rs2E[3:0]), .ZKNDSelect(ZBBSelect[2:0]), .ZKNDResult);
end
else begin
zknd64 #(P.XLEN) ZKND64(.A(ABMU), .B(BBMU), .Funct7, .RNUM(Rs2E[3:0]), .ZKNDSelect(ZBBSelect[2:0]), .ZKNDResult);
end
end else assign ZKNDResult = 0; end else assign ZKNDResult = 0;
// ZKNE Unit // ZKNE Unit
if (P.ZKNE_SUPPORTED) begin: zkne if (P.ZKNE_SUPPORTED) begin: zkne
if (P.XLEN == 32) begin if (P.XLEN == 32) zkne32 #(P.XLEN) ZKNE32(.A(ABMU), .B(BBMU), .Funct7, .ZKNESelect(ZBBSelect[2:0]), .ZKNEResult);
zkne32 #(P.XLEN) ZKNE32(.A(ABMU), .B(BBMU), .Funct7, .ZKNESelect(ZBBSelect[2:0]), .ZKNEResult); else zkne64 #(P.XLEN) ZKNE64(.A(ABMU), .B(BBMU), .Funct7, .RNUM(Rs2E[3:0]), .ZKNESelect(ZBBSelect[2:0]), .ZKNEResult);
end
else begin
zkne64 #(P.XLEN) ZKNE64(.A(ABMU), .B(BBMU), .Funct7, .RNUM(Rs2E[3:0]), .ZKNESelect(ZBBSelect[2:0]), .ZKNEResult);
end
end else assign ZKNEResult = 0; end else assign ZKNEResult = 0;
// ZKNH Unit // ZKNH Unit
if (P.ZKNH_SUPPORTED) begin: zknh if (P.ZKNH_SUPPORTED) begin: zknh
if (P.XLEN == 32) begin if (P.XLEN == 32) zknh32 ZKNH32(.A(ABMU), .B(BBMU), .ZKNHSelect(ZBBSelect), .ZKNHResult(ZKNHResult));
zknh32 ZKNH32(.A(ABMU), .B(BBMU), .ZKNHSelect(ZBBSelect), .ZKNHResult(ZKNHResult)); else zknh64 ZKNH64(.A(ABMU), .B(BBMU), .ZKNHSelect(ZBBSelect), .ZKNHResult(ZKNHResult));
end
else begin
zknh64 ZKNH64(.A(ABMU), .B(BBMU), .ZKNHSelect(ZBBSelect), .ZKNHResult(ZKNHResult));
end
end else assign ZKNHResult = 0; end else assign ZKNHResult = 0;
// Result Select Mux // Result Select Mux

8
src/ieu/kmu/packer.sv
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@ -37,11 +37,11 @@ module packer #(parameter WIDTH=32) (
logic [WIDTH-1:0] Pack, PackH, PackW; logic [WIDTH-1:0] Pack, PackH, PackW;
assign lowhalf = A[WIDTH/2-1:0]; assign lowhalf = A[WIDTH/2-1:0];
assign highhalf = B[WIDTH/2-1:0]; assign highhalf = B[WIDTH/2-1:0];
assign lowhalfh = A[7:0]; assign lowhalfh = A[7:0];
assign highhalfh = B[7:0]; assign highhalfh = B[7:0];
assign lowhalfw = A[15:0]; assign lowhalfw = A[15:0];
assign highhalfw = B[15:0]; assign highhalfw = B[15:0];
assign Pack = {highhalf, lowhalf}; assign Pack = {highhalf, lowhalf};

19
src/ieu/kmu/zbkx.sv
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@ -32,20 +32,17 @@ module zbkx #(parameter WIDTH=32) (
); );
logic [WIDTH-1:0] xpermlookup; logic [WIDTH-1:0] xpermlookup;
integer i; int i;
always_comb begin always_comb
if (ZBKXSelect[0] == 1'b0) begin if (ZBKXSelect[0])
for(i=0; i<WIDTH; i=i+8) begin: xperm8
xpermlookup = A >> {B[i+:8], 3'b0};
ZBKXResult[i+:8] = xpermlookup[7:0];
end
end
else begin
for(i=0; i<WIDTH; i=i+4) begin: xperm4 for(i=0; i<WIDTH; i=i+4) begin: xperm4
xpermlookup = A >> {B[i+:4], 2'b0}; xpermlookup = A >> {B[i+:4], 2'b0};
ZBKXResult[i+:4] = xpermlookup[3:0]; ZBKXResult[i+:4] = xpermlookup[3:0];
end end
end else
end for(i=0; i<WIDTH; i=i+8) begin: xperm8
xpermlookup = A >> {B[i+:8], 3'b0};
ZBKXResult[i+:8] = xpermlookup[7:0];
end
endmodule endmodule