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minor update

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This commit is contained in:
Blaise Tine
2021-07-15 12:25:51 -07:00
parent d9425cc484
commit a8f9a2559d
1 changed files with 18 additions and 3 deletions
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19
hw/rtl/libs/VX_onehot_encoder.v
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@@ -6,7 +6,7 @@
module VX_onehot_encoder #( module VX_onehot_encoder #(
parameter N = 1, parameter N = 1,
parameter REVERSE = 0, parameter REVERSE = 0,
parameter FAST = 1, parameter MODEL = 1,
parameter LN = `LOG2UP(N) parameter LN = `LOG2UP(N)
) ( ) (
input wire [N-1:0] data_in, input wire [N-1:0] data_in,
@@ -23,7 +23,7 @@ module VX_onehot_encoder #(
assign data_out = data_in[!REVERSE]; assign data_out = data_in[!REVERSE];
assign valid_out = (| data_in); assign valid_out = (| data_in);
end else if (FAST) begin end else if (MODEL == 1) begin
`IGNORE_WARNINGS_BEGIN `IGNORE_WARNINGS_BEGIN
localparam levels_lp = $clog2(N); localparam levels_lp = $clog2(N);
localparam aligned_width_lp = 1 << $clog2(N); localparam aligned_width_lp = 1 << $clog2(N);
@@ -62,6 +62,21 @@ module VX_onehot_encoder #(
assign data_out = addr[levels_lp][`LOG2UP(N)-1:0]; assign data_out = addr[levels_lp][`LOG2UP(N)-1:0];
assign valid_out = v[levels_lp][0]; assign valid_out = v[levels_lp][0];
`IGNORE_WARNINGS_END `IGNORE_WARNINGS_END
end else if (MODEL == 2) begin
for (genvar j = 0; j < LN; ++j) begin
wire [N-1:0] mask;
for (genvar i = 0; i < N; ++i) begin
`IGNORE_WARNINGS_BEGIN
wire [LN-1:0] i_w = i;
`IGNORE_WARNINGS_END
assign mask[i] = i_w[j];
end
assign data_out[j] = |(mask & data_in);
end
assign valid_out = (| data_in);
end else begin end else begin
reg [LN-1:0] index_r; reg [LN-1:0] index_r;