| Line 608... |
Line 608... |
output [width-1:0] dout;
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output [width-1:0] dout;
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vl_mux_andor
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vl_mux_andor
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# ( .width(width), .nr_of_ports(nr_of_ports))
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# ( .width(width), .nr_of_ports(nr_of_ports))
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mux0( .a({a5,a4,a3,a2,a1,a0}), .sel(sel), .dout(dout));
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mux0( .a({a5,a4,a3,a2,a1,a0}), .sel(sel), .dout(dout));
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endmodule
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endmodule
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module vl_parity_generate (data, parity);
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parameter word_size = 32;
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parameter chunk_size = 8;
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parameter parity_type = 1'b0; // 0 - even, 1 - odd parity
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input [word_size-1:0] data;
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output reg [word_size/chunk_size-1:0] parity;
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integer i,j;
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always @ (data)
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for (i=0;i<word_size/chunk_size;i=i+1) begin
|
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parity[i] = parity_type;
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for (j=0;j<chunk_size;j=j+1) begin
|
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parity[i] = data[i+j] ^ parity[i];
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end
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end
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endmodule
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module vl_parity_check( data, parity, parity_error);
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parameter word_size = 32;
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parameter chunk_size = 8;
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parameter parity_type = 1'b0; // 0 - even, 1 - odd parity
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input [word_size-1:0] data;
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input [word_size/chunk_size-1:0] parity;
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output parity_error;
|
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reg [chunk_size-1:0] error_flag;
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integer i,j;
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always @ (data or parity)
|
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for (i=0;i<word_size/chunk_size;i=i+1) begin
|
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error_flag[i] = parity[i] ^ parity_type;
|
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for (j=0;j<chunk_size;j=j+1) begin
|
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error_flag[i] = data[i+j] ^ error_flag[i];
|
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end
|
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end
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assign parity_error = |error_flag;
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endmodule
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
|
//// ////
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//// ////
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//// Versatile counter ////
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//// Versatile counter ////
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//// ////
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//// ////
|
//// Description ////
|
//// Description ////
|
