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发表于 2012-3-5 23:19:53
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module arbiter (
req, grant, base
);
parameter WIDTH = 16;
input [WIDTH-1:0] req;
output [WIDTH-1:0] grant;
input [WIDTH-1:0] base;
wire [2*WIDTH-1:0] double_req = {req,req};
wire [2*WIDTH-1:0] double_grant = double_req & ~(double_req-base);
assign grant = double_grant[WIDTH-1:0] | double_grant[2*WIDTH-1:WIDTH];
endmodule |
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