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//======================================================================
//
// Copyright (c) 2016, 2018 NORDUnet A/S All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// - Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// - Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// - Neither the name of the NORDUnet nor the names of its contributors may
// be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
// TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//======================================================================
module ecdsa256_modulus_distmem
(
input wire clk,
input wire [ 3-1:0] b_addr,
output wire [32-1:0] b_out
);
//
// Output Registers
//
(* ram_style="distributed" *)
reg [31:0] bram_reg_b;
assign b_out = bram_reg_b;
//
// Read-Only Port B
//
always @(posedge clk)
//
case (b_addr)
3'b000: bram_reg_b <= 32'hffffffff;
3'b001: bram_reg_b <= 32'hffffffff;
3'b010: bram_reg_b <= 32'hffffffff;
3'b011: bram_reg_b <= 32'h00000000;
3'b100: bram_reg_b <= 32'h00000000;
3'b101: bram_reg_b <= 32'h00000000;
3'b110: bram_reg_b <= 32'h00000001;
3'b111: bram_reg_b <= 32'hffffffff;
endcase
endmodule
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