mirror of https://github.com/YosysHQ/yosys.git
37 lines
1.0 KiB
Coq
37 lines
1.0 KiB
Coq
|
module mux_if_unbal_4_1 #(parameter N=4, parameter W=1) (input [N*W-1:0] i, input [$clog2(N)-1:0] s, output reg [W-1:0] o);
|
||
|
|
always @*
|
||
|
|
if (s == 0) o <= i[0*W+:W];
|
||
|
|
else if (s == 1) o <= i[1*W+:W];
|
||
|
|
else if (s == 2) o <= i[2*W+:W];
|
||
|
|
else if (s == 3) o <= i[3*W+:W];
|
||
|
|
else o <= {W{1'bx}};
|
||
|
|
|
||
|
|
endmodule
|
||
|
|
|
||
|
|
module mux_if_unbal_5_3 #(parameter N=5, parameter W=3) (input [N*W-1:0] i, input [$clog2(N)-1:0] s, output reg [W-1:0] o);
|
||
|
|
always @* begin
|
||
|
|
o <= {W{1'bx}};
|
||
|
|
if (s == 0) o <= i[0*W+:W];
|
||
|
|
if (s == 1) o <= i[1*W+:W];
|
||
|
|
if (s == 2) o <= i[2*W+:W];
|
||
|
|
if (s == 3) o <= i[3*W+:W];
|
||
|
|
if (s == 4) o <= i[4*W+:W];
|
||
|
|
end
|
||
|
|
|
||
|
|
endmodule
|
||
|
|
|
||
|
|
module mux_if_unbal_5_3_invert #(parameter N=5, parameter W=3) (input [N*W-1:0] i, input [$clog2(N)-1:0] s, output reg [W-1:0] o);
|
||
|
|
always @*
|
||
|
|
if (s != 0)
|
||
|
|
if (s != 1)
|
||
|
|
if (s != 2)
|
||
|
|
if (s != 3)
|
||
|
|
if (s != 4) o <= i[4*W+:W];
|
||
|
|
else o <= i[0*W+:W];
|
||
|
|
else o <= i[3*W+:W];
|
||
|
|
else o <= i[2*W+:W];
|
||
|
|
else o <= i[1*W+:W];
|
||
|
|
else o <= {W{1'bx}};
|
||
|
|
|
||
|
|
endmodule
|