diff options
Diffstat (limited to 'rtl/lowlevel/generic')
| -rw-r--r-- | rtl/lowlevel/generic/adder32_generic.v | 67 | ||||
| -rw-r--r-- | rtl/lowlevel/generic/adder47_generic.v | 64 | ||||
| -rw-r--r-- | rtl/lowlevel/generic/mac16_generic.v | 74 | ||||
| -rw-r--r-- | rtl/lowlevel/generic/subtractor32_generic.v | 67 |
4 files changed, 0 insertions, 272 deletions
diff --git a/rtl/lowlevel/generic/adder32_generic.v b/rtl/lowlevel/generic/adder32_generic.v deleted file mode 100644 index eadfb6f..0000000 --- a/rtl/lowlevel/generic/adder32_generic.v +++ /dev/null @@ -1,67 +0,0 @@ -//------------------------------------------------------------------------------ -// -// adder32_generic.v -// ----------------------------------------------------------------------------- -// Generic 32-bit adder. -// -// Authors: Pavel Shatov -// -// Copyright (c) 2016, NORDUnet A/S -// -// 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 adder32_generic - ( - input clk, // clock - input [31: 0] a, // operand input - input [31: 0] b, // operand input - output [31: 0] s, // sum output - input c_in, // carry input - output c_out // carry output - ); - - // - // Sum - // - reg [32: 0] s_int; - - always @(posedge clk) - s_int <= {1'b0, a} + {1'b0, b} + {{32{1'b0}}, c_in}; - - // - // Output - // - assign s = s_int[31:0]; - assign c_out = s_int[32]; - -endmodule - -//------------------------------------------------------------------------------ -// End-of-File -//------------------------------------------------------------------------------ diff --git a/rtl/lowlevel/generic/adder47_generic.v b/rtl/lowlevel/generic/adder47_generic.v deleted file mode 100644 index 406c175..0000000 --- a/rtl/lowlevel/generic/adder47_generic.v +++ /dev/null @@ -1,64 +0,0 @@ -//------------------------------------------------------------------------------ -// -// adder47_generic.v -// ----------------------------------------------------------------------------- -// Generic 47-bit adder. -// -// Authors: Pavel Shatov -// -// Copyright (c) 2016, NORDUnet A/S -// -// 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 adder47_generic - ( - input clk, // clock - input [46: 0] a, // operand input - input [46: 0] b, // operand input - output [46: 0] s // sum output - ); - - // - // Sum - // - reg [46: 0] s_int; - - always @(posedge clk) - s_int <= a + b; - - // - // Output - // - assign s = s_int; - -endmodule - -//------------------------------------------------------------------------------ -// End-of-File -//------------------------------------------------------------------------------ diff --git a/rtl/lowlevel/generic/mac16_generic.v b/rtl/lowlevel/generic/mac16_generic.v deleted file mode 100644 index 6d120a3..0000000 --- a/rtl/lowlevel/generic/mac16_generic.v +++ /dev/null @@ -1,74 +0,0 @@ -//------------------------------------------------------------------------------ -// -// mac16_generic.v -// ----------------------------------------------------------------------------- -// Generic 16-bit multiplier and 47-bit accumulator. -// -// Authors: Pavel Shatov -// -// Copyright (c) 2016, NORDUnet A/S -// -// 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 mac16_generic - ( - input clk, // clock - input clr, // clear accumulator (active-high) - input ce, // enable clock (active-high) - input [15: 0] a, // operand input - input [15: 0] b, // operand input - output [46: 0] s // sum output - ); - - // - // Multiplier - // - wire [31: 0] p = {{16{1'b0}}, a} * {{16{1'b0}}, b}; - wire [46: 0] p_ext = {{15{1'b0}}, p}; - - // - // Accumulator - // - reg [46: 0] s_int; - - always @(posedge clk) - // - if (ce) s_int <= clr ? p_ext : p_ext + s_int; - - // - // Output - // - assign s = s_int; - -endmodule - - -//------------------------------------------------------------------------------ -// End-of-File -//------------------------------------------------------------------------------ diff --git a/rtl/lowlevel/generic/subtractor32_generic.v b/rtl/lowlevel/generic/subtractor32_generic.v deleted file mode 100644 index 5137ace..0000000 --- a/rtl/lowlevel/generic/subtractor32_generic.v +++ /dev/null @@ -1,67 +0,0 @@ -//------------------------------------------------------------------------------ -// -// subtractor32_generic.v -// ----------------------------------------------------------------------------- -// Generic 32-bit subtractor. -// -// Authors: Pavel Shatov -// -// Copyright (c) 2016, NORDUnet A/S -// -// 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 subtractor32_generic - ( - input clk, - input [31: 0] a, - input [31: 0] b, - output [31: 0] d, - input b_in, - output b_out - ); - - // - // Difference - // - reg [32: 0] d_int; - - always @(posedge clk) - d_int <= {1'b0, a} - {1'b0, b} - {{32{1'b0}}, b_in}; - - // - // Output - // - assign d = d_int[31:0]; - assign b_out = d_int[32]; - -endmodule - -//------------------------------------------------------------------------------ -// End-of-File -//------------------------------------------------------------------------------ |