From ab4638f70ee846de7398a3d78d467a9551e508cf Mon Sep 17 00:00:00 2001 From: Rob Austein Date: Tue, 7 Mar 2017 19:46:44 -0500 Subject: Promote code common to both ECDSA* cores to separate repository in core/ tree. Pavel's two ECDSA base point multiplier cores share a fair amount of code. Maintenance issues aside, the duplication confused the Xilinx synthesis tools if one tried to build a single bitstream containing both cores, so we've separated the common code out into this library. The selection of files in this library was done by comparing the rtl trees of the two original core repositories using "diff -rqws" and selecting the files which diff reported as being identical. Also dealt with some cosmetic issues (indentation, Windows-isms, etc). --- rtl/curve/rom/brom_p256_delta.v | 68 --------------------------------------- rtl/curve/rom/brom_p256_g_x.v | 68 --------------------------------------- rtl/curve/rom/brom_p256_g_y.v | 68 --------------------------------------- rtl/curve/rom/brom_p256_h_x.v | 68 --------------------------------------- rtl/curve/rom/brom_p256_h_y.v | 68 --------------------------------------- rtl/curve/rom/brom_p256_one.v | 68 --------------------------------------- rtl/curve/rom/brom_p256_q.v | 68 --------------------------------------- rtl/curve/rom/brom_p256_zero.v | 70 ----------------------------------------- 8 files changed, 546 deletions(-) delete mode 100644 rtl/curve/rom/brom_p256_delta.v delete mode 100644 rtl/curve/rom/brom_p256_g_x.v delete mode 100644 rtl/curve/rom/brom_p256_g_y.v delete mode 100644 rtl/curve/rom/brom_p256_h_x.v delete mode 100644 rtl/curve/rom/brom_p256_h_y.v delete mode 100644 rtl/curve/rom/brom_p256_one.v delete mode 100644 rtl/curve/rom/brom_p256_q.v delete mode 100644 rtl/curve/rom/brom_p256_zero.v (limited to 'rtl/curve/rom') diff --git a/rtl/curve/rom/brom_p256_delta.v b/rtl/curve/rom/brom_p256_delta.v deleted file mode 100644 index b9a345a..0000000 --- a/rtl/curve/rom/brom_p256_delta.v +++ /dev/null @@ -1,68 +0,0 @@ -//====================================================================== -// -// Copyright (c) 2016, 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. -// -//====================================================================== - -`timescale 1ns / 1ps - -module brom_p256_delta - ( - input wire clk, - input wire [ 3-1:0] b_addr, - output wire [32-1:0] b_out - ); - - - // - // Output Registers - // - 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'h00000000; - 3'b001: bram_reg_b <= 32'h00000000; - 3'b010: bram_reg_b <= 32'h80000000; - 3'b011: bram_reg_b <= 32'h00000000; - 3'b100: bram_reg_b <= 32'h00000000; - 3'b101: bram_reg_b <= 32'h80000000; - 3'b110: bram_reg_b <= 32'h80000000; - 3'b111: bram_reg_b <= 32'h7fffffff; - endcase - - -endmodule diff --git a/rtl/curve/rom/brom_p256_g_x.v b/rtl/curve/rom/brom_p256_g_x.v deleted file mode 100644 index 0816ef6..0000000 --- a/rtl/curve/rom/brom_p256_g_x.v +++ /dev/null @@ -1,68 +0,0 @@ -//====================================================================== -// -// Copyright (c) 2016, 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. -// -//====================================================================== - -`timescale 1ns / 1ps - -module brom_p256_g_x - ( - input wire clk, - input wire [ 3-1:0] b_addr, - output wire [32-1:0] b_out - ); - - - // - // Output Registers - // - 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'hd898c296; - 3'b001: bram_reg_b <= 32'hf4a13945; - 3'b010: bram_reg_b <= 32'h2deb33a0; - 3'b011: bram_reg_b <= 32'h77037d81; - 3'b100: bram_reg_b <= 32'h63a440f2; - 3'b101: bram_reg_b <= 32'hf8bce6e5; - 3'b110: bram_reg_b <= 32'he12c4247; - 3'b111: bram_reg_b <= 32'h6b17d1f2; - endcase - - -endmodule diff --git a/rtl/curve/rom/brom_p256_g_y.v b/rtl/curve/rom/brom_p256_g_y.v deleted file mode 100644 index 4d9c61e..0000000 --- a/rtl/curve/rom/brom_p256_g_y.v +++ /dev/null @@ -1,68 +0,0 @@ -//====================================================================== -// -// Copyright (c) 2016, 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. -// -//====================================================================== - -`timescale 1ns / 1ps - -module brom_p256_g_y - ( - input wire clk, - input wire [ 3-1:0] b_addr, - output wire [32-1:0] b_out - ); - - - // - // Output Registers - // - 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'h37bf51f5; - 3'b001: bram_reg_b <= 32'hcbb64068; - 3'b010: bram_reg_b <= 32'h6b315ece; - 3'b011: bram_reg_b <= 32'h2bce3357; - 3'b100: bram_reg_b <= 32'h7c0f9e16; - 3'b101: bram_reg_b <= 32'h8ee7eb4a; - 3'b110: bram_reg_b <= 32'hfe1a7f9b; - 3'b111: bram_reg_b <= 32'h4fe342e2; - endcase - - -endmodule diff --git a/rtl/curve/rom/brom_p256_h_x.v b/rtl/curve/rom/brom_p256_h_x.v deleted file mode 100644 index 0b69f77..0000000 --- a/rtl/curve/rom/brom_p256_h_x.v +++ /dev/null @@ -1,68 +0,0 @@ -//====================================================================== -// -// Copyright (c) 2016, 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. -// -//====================================================================== - -`timescale 1ns / 1ps - -module brom_p256_h_x - ( - input wire clk, - input wire [ 3-1:0] b_addr, - output wire [32-1:0] b_out - ); - - - // - // Output Registers - // - 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'h4ece7ad0; - 3'b001: bram_reg_b <= 32'h16bd8d74; - 3'b010: bram_reg_b <= 32'ha42998be; - 3'b011: bram_reg_b <= 32'h11f904fe; - 3'b100: bram_reg_b <= 32'h38b77e1b; - 3'b101: bram_reg_b <= 32'h0e863235; - 3'b110: bram_reg_b <= 32'h3da77b71; - 3'b111: bram_reg_b <= 32'h29d05c19; - endcase - - -endmodule diff --git a/rtl/curve/rom/brom_p256_h_y.v b/rtl/curve/rom/brom_p256_h_y.v deleted file mode 100644 index 362fce6..0000000 --- a/rtl/curve/rom/brom_p256_h_y.v +++ /dev/null @@ -1,68 +0,0 @@ -//====================================================================== -// -// Copyright (c) 2016, 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. -// -//====================================================================== - -`timescale 1ns / 1ps - -module brom_p256_h_y - ( - input wire clk, - input wire [ 3-1:0] b_addr, - output wire [32-1:0] b_out - ); - - - // - // Output Registers - // - 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'hc840ae07; - 3'b001: bram_reg_b <= 32'h3449bf97; - 3'b010: bram_reg_b <= 32'h94cea131; - 3'b011: bram_reg_b <= 32'hd431cca9; - 3'b100: bram_reg_b <= 32'h83f061e9; - 3'b101: bram_reg_b <= 32'h711814b5; - 3'b110: bram_reg_b <= 32'h01e58065; - 3'b111: bram_reg_b <= 32'hb01cbd1c; - endcase - - -endmodule diff --git a/rtl/curve/rom/brom_p256_one.v b/rtl/curve/rom/brom_p256_one.v deleted file mode 100644 index 4097874..0000000 --- a/rtl/curve/rom/brom_p256_one.v +++ /dev/null @@ -1,68 +0,0 @@ -//====================================================================== -// -// Copyright (c) 2016, 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. -// -//====================================================================== - -`timescale 1ns / 1ps - -module brom_p256_one - ( - input wire clk, - input wire [ 3-1:0] b_addr, - output wire [32-1:0] b_out - ); - - - // - // Output Registers - // - 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'h00000001; - 3'b001: bram_reg_b <= 32'h00000000; - 3'b010: bram_reg_b <= 32'h00000000; - 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'h00000000; - 3'b111: bram_reg_b <= 32'h00000000; - endcase - - -endmodule diff --git a/rtl/curve/rom/brom_p256_q.v b/rtl/curve/rom/brom_p256_q.v deleted file mode 100644 index fe94593..0000000 --- a/rtl/curve/rom/brom_p256_q.v +++ /dev/null @@ -1,68 +0,0 @@ -//====================================================================== -// -// Copyright (c) 2016, 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. -// -//====================================================================== - -`timescale 1ns / 1ps - -module brom_p256_q - ( - input wire clk, - input wire [ 3-1:0] b_addr, - output wire [32-1:0] b_out - ); - - - // - // Output Registers - // - 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 diff --git a/rtl/curve/rom/brom_p256_zero.v b/rtl/curve/rom/brom_p256_zero.v deleted file mode 100644 index f6d19a1..0000000 --- a/rtl/curve/rom/brom_p256_zero.v +++ /dev/null @@ -1,70 +0,0 @@ -//====================================================================== -// -// Copyright (c) 2016, 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. -// -//====================================================================== - -`timescale 1ns / 1ps - -module brom_p256_zero - ( - //input wire clk, - //input wire [ 3-1:0] b_addr, - output wire [32-1:0] b_out - ); - - - assign b_out = {32{1'b0}}; - - // - // Output Registers - // - //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'h00000000; - //3'b001: bram_reg_b <= 32'h00000000; - //3'b010: bram_reg_b <= 32'h00000000; - //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'h00000000; - //3'b111: bram_reg_b <= 32'h00000000; - //endcase - - -endmodule -- cgit v1.2.3