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348 lines
13 KiB
Verilog
348 lines
13 KiB
Verilog
// © IBM Corp. 2020
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// Licensed under the Apache License, Version 2.0 (the "License"), as modified by
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// the terms below; you may not use the files in this repository except in
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// compliance with the License as modified.
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// You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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//
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// Modified Terms:
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//
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// 1) For the purpose of the patent license granted to you in Section 3 of the
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// License, the "Work" hereby includes implementations of the work of authorship
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// in physical form.
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//
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// 2) Notwithstanding any terms to the contrary in the License, any licenses
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// necessary for implementation of the Work that are available from OpenPOWER
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// via the Power ISA End User License Agreement (EULA) are explicitly excluded
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// hereunder, and may be obtained from OpenPOWER under the terms and conditions
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// of the EULA.
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//
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// Unless required by applicable law or agreed to in writing, the reference design
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
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// for the specific language governing permissions and limitations under the License.
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//
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// Additional rights, including the ability to physically implement a softcore that
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// is compliant with the required sections of the Power ISA Specification, are
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// available at no cost under the terms of the OpenPOWER Power ISA EULA, which can be
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// obtained (along with the Power ISA) here: https://openpowerfoundation.org.
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`timescale 1 ns / 1 ns
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`include "tri_a2o.vh"
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module fu_hc16pp_lsb(
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x,
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y,
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s0,
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s1,
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g16,
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t16
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);
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input [0:13] x;
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input [0:12] y;
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output [0:13] s0;
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output [0:13] s1;
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output g16;
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output t16;
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parameter tiup = 1'b1;
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parameter tidn = 1'b0;
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wire [0:12] g01_b;
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wire [0:13] t01_b;
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wire [0:13] p01_b;
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wire [0:13] p01 /*verilator split_var*/;
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wire [0:5] g01od;
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wire [0:6] t01od;
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wire [0:6] g02ev;
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wire [0:6] t02ev;
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wire [1:6] g02ev_b;
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wire [1:6] t02ev_b;
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wire [1:6] g04ev;
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wire [1:6] t04ev;
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wire [1:6] g08ev_b;
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wire [1:6] t08ev_b;
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wire [1:6] g16ev;
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wire [1:6] t16ev;
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wire [1:12] c0_b;
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wire [1:13] c1_b;
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wire glb_g04_e01_b; //new // rep glb
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wire glb_g04_e23_b;
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wire glb_g04_e45_b;
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wire glb_g04_e67_b;
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wire glb_t04_e01_b; //new // rep glb
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wire glb_t04_e23_b;
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wire glb_t04_e45_b;
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wire glb_t04_e67_b;
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wire glb_g08_e03; //new // rep glb
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wire glb_g08_e47;
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wire glb_t08_e03;
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wire glb_t08_e47;
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wire glb_g16_e07_b; //new // rep glb
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wire glb_t16_e07_b;
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////#####################################
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////## group 1
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////#####################################
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assign g01_b[0] = (~(x[0] & y[0])); //critical
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assign g01_b[1] = (~(x[1] & y[1])); //critical
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assign g01_b[2] = (~(x[2] & y[2])); //critical
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assign g01_b[3] = (~(x[3] & y[3])); //critical
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assign g01_b[4] = (~(x[4] & y[4])); //critical
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assign g01_b[5] = (~(x[5] & y[5])); //critical
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assign g01_b[6] = (~(x[6] & y[6])); //critical
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assign g01_b[7] = (~(x[7] & y[7])); //critical
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assign g01_b[8] = (~(x[8] & y[8])); //critical
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assign g01_b[9] = (~(x[9] & y[9])); //critical
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assign g01_b[10] = (~(x[10] & y[10])); //critical
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assign g01_b[11] = (~(x[11] & y[11])); //critical
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assign g01_b[12] = (~(x[12] & y[12])); //critical
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assign t01_b[0] = (~(x[0] | y[0])); //critical
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assign t01_b[1] = (~(x[1] | y[1])); //critical
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assign t01_b[2] = (~(x[2] | y[2])); //critical
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assign t01_b[3] = (~(x[3] | y[3])); //critical
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assign t01_b[4] = (~(x[4] | y[4])); //critical
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assign t01_b[5] = (~(x[5] | y[5])); //critical
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assign t01_b[6] = (~(x[6] | y[6])); //critical
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assign t01_b[7] = (~(x[7] | y[7])); //critical
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assign t01_b[8] = (~(x[8] | y[8])); //critical
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assign t01_b[9] = (~(x[9] | y[9])); //critical
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assign t01_b[10] = (~(x[10] | y[10])); //critical
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assign t01_b[11] = (~(x[11] | y[11])); //critical
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assign t01_b[12] = (~(x[12] | y[12])); //critical
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assign t01_b[13] = (~(x[13])); //critical
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assign p01[0] = (x[0] ^ y[0]); //not critical
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assign p01[1] = (x[1] ^ y[1]); //not critical
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assign p01[2] = (x[2] ^ y[2]); //not critical
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assign p01[3] = (x[3] ^ y[3]); //not critical
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assign p01[4] = (x[4] ^ y[4]); //not critical
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assign p01[5] = (x[5] ^ y[5]); //not critical
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assign p01[6] = (x[6] ^ y[6]); //not critical
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assign p01[7] = (x[7] ^ y[7]); //not critical
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assign p01[8] = (x[8] ^ y[8]); //not critical
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assign p01[9] = (x[9] ^ y[9]); //not critical
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assign p01[10] = (x[10] ^ y[10]); //not critical
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assign p01[11] = (x[11] ^ y[11]); //not critical
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assign p01[12] = (x[12] ^ y[12]); //not critical
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assign p01[13] = (~p01_b[13]);
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assign p01_b[0] = (~(p01[0])); //not critical
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assign p01_b[1] = (~(p01[1])); //not critical
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assign p01_b[2] = (~(p01[2])); //not critical
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assign p01_b[3] = (~(p01[3])); //not critical
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assign p01_b[4] = (~(p01[4])); //not critical
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assign p01_b[5] = (~(p01[5])); //not critical
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assign p01_b[6] = (~(p01[6])); //not critical
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assign p01_b[7] = (~(p01[7])); //not critical
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assign p01_b[8] = (~(p01[8])); //not critical
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assign p01_b[9] = (~(p01[9])); //not critical
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assign p01_b[10] = (~(p01[10])); //not critical
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assign p01_b[11] = (~(p01[11])); //not critical
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assign p01_b[12] = (~(p01[12])); //not critical
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assign p01_b[13] = (~(x[13])); //not critical
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assign g01od[0] = (~g01_b[1]);
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assign g01od[1] = (~g01_b[3]);
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assign g01od[2] = (~g01_b[5]);
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assign g01od[3] = (~g01_b[7]);
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assign g01od[4] = (~g01_b[9]);
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assign g01od[5] = (~g01_b[11]);
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assign t01od[0] = (~t01_b[1]);
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assign t01od[1] = (~t01_b[3]);
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assign t01od[2] = (~t01_b[5]);
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assign t01od[3] = (~t01_b[7]);
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assign t01od[4] = (~t01_b[9]);
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assign t01od[5] = (~t01_b[11]);
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assign t01od[6] = (~t01_b[13]);
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////#####################################
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////## group 2 // local and global shared
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////#####################################
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assign g02ev[6] = (~(g01_b[12])); //final
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assign g02ev[5] = (~((t01_b[10] | g01_b[11]) & g01_b[10]));
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assign g02ev[4] = (~((t01_b[8] | g01_b[9]) & g01_b[8]));
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assign g02ev[3] = (~((t01_b[6] | g01_b[7]) & g01_b[6]));
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assign g02ev[2] = (~((t01_b[4] | g01_b[5]) & g01_b[4]));
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assign g02ev[1] = (~((t01_b[2] | g01_b[3]) & g01_b[2]));
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assign g02ev[0] = (~((t01_b[0] | g01_b[1]) & g01_b[0]));
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assign t02ev[6] = (~((t01_b[12] | t01_b[13]) & g01_b[12])); //final
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assign t02ev[5] = (~((t01_b[10] | t01_b[11])));
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assign t02ev[4] = (~((t01_b[8] | t01_b[9])));
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assign t02ev[3] = (~((t01_b[6] | t01_b[7])));
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assign t02ev[2] = (~((t01_b[4] | t01_b[5])));
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assign t02ev[1] = (~((t01_b[2] | t01_b[3])));
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assign t02ev[0] = (~((t01_b[0] | t01_b[1])));
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assign g02ev_b[6] = (~(g02ev[6])); //new
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assign g02ev_b[5] = (~(g02ev[5])); //new
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assign g02ev_b[4] = (~(g02ev[4])); //new
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assign g02ev_b[3] = (~(g02ev[3])); //new
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assign g02ev_b[2] = (~(g02ev[2])); //new
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assign g02ev_b[1] = (~(g02ev[1])); //new
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assign t02ev_b[6] = (~(t02ev[6])); //new
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assign t02ev_b[5] = (~(t02ev[5])); //new
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assign t02ev_b[4] = (~(t02ev[4])); //new
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assign t02ev_b[3] = (~(t02ev[3])); //new
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assign t02ev_b[2] = (~(t02ev[2])); //new
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assign t02ev_b[1] = (~(t02ev[1])); //new
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////#####################################
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////## replicating for global chain
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////#####################################
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assign glb_g04_e01_b = (~(g02ev[0] | (t02ev[0] & g02ev[1])));
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assign glb_g04_e23_b = (~(g02ev[2] | (t02ev[2] & g02ev[3])));
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assign glb_g04_e45_b = (~(g02ev[4] | (t02ev[4] & g02ev[5])));
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assign glb_g04_e67_b = (~(g02ev[6]));
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assign glb_t04_e01_b = (~(t02ev[0] & t02ev[1]));
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assign glb_t04_e23_b = (~(t02ev[2] & t02ev[3]));
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assign glb_t04_e45_b = (~(t02ev[4] & t02ev[5]));
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assign glb_t04_e67_b = (~(t02ev[6]));
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assign glb_g08_e03 = (~(glb_g04_e01_b & (glb_t04_e01_b | glb_g04_e23_b)));
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assign glb_g08_e47 = (~(glb_g04_e45_b & (glb_t04_e45_b | glb_g04_e67_b)));
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assign glb_t08_e03 = (~(glb_t04_e01_b | glb_t04_e23_b));
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assign glb_t08_e47 = (~(glb_g04_e45_b & (glb_t04_e45_b | glb_t04_e67_b)));
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assign glb_g16_e07_b = (~(glb_g08_e03 | (glb_t08_e03 & glb_g08_e47)));
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assign glb_t16_e07_b = (~(glb_g08_e03 | (glb_t08_e03 & glb_t08_e47)));
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assign g16 = (~(glb_g16_e07_b)); //output
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assign t16 = (~(glb_t16_e07_b)); //output
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////#####################################
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////## group 4
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////#####################################
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assign g04ev[6] = (~(g02ev_b[6]));
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assign g04ev[5] = (~((t02ev_b[5] | g02ev_b[6]) & g02ev_b[5])); //final
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assign g04ev[4] = (~((t02ev_b[4] | g02ev_b[5]) & g02ev_b[4]));
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assign g04ev[3] = (~((t02ev_b[3] | g02ev_b[4]) & g02ev_b[3]));
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assign g04ev[2] = (~((t02ev_b[2] | g02ev_b[3]) & g02ev_b[2]));
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assign g04ev[1] = (~((t02ev_b[1] | g02ev_b[2]) & g02ev_b[1]));
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assign t04ev[6] = (~(t02ev_b[6]));
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assign t04ev[5] = (~((t02ev_b[5] | t02ev_b[6]) & g02ev_b[5])); //final
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assign t04ev[4] = (~(t02ev_b[4] | t02ev_b[5]));
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assign t04ev[3] = (~(t02ev_b[3] | t02ev_b[4]));
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assign t04ev[2] = (~(t02ev_b[2] | t02ev_b[3]));
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assign t04ev[1] = (~(t02ev_b[1] | t02ev_b[2]));
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////#####################################
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////## group 8
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////#####################################
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assign g08ev_b[6] = (~(g04ev[6]));
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assign g08ev_b[5] = (~(g04ev[5]));
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assign g08ev_b[4] = (~(g04ev[4] | (t04ev[4] & g04ev[6]))); //final
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assign g08ev_b[3] = (~(g04ev[3] | (t04ev[3] & g04ev[5]))); //final
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assign g08ev_b[2] = (~(g04ev[2] | (t04ev[2] & g04ev[4])));
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assign g08ev_b[1] = (~(g04ev[1] | (t04ev[1] & g04ev[3])));
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assign t08ev_b[6] = (~(t04ev[6]));
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assign t08ev_b[5] = (~(t04ev[5]));
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assign t08ev_b[4] = (~(g04ev[4] | (t04ev[4] & t04ev[6]))); //final
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assign t08ev_b[3] = (~(g04ev[3] | (t04ev[3] & t04ev[5]))); //final
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assign t08ev_b[2] = (~(t04ev[2] & t04ev[4]));
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assign t08ev_b[1] = (~(t04ev[1] & t04ev[3]));
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////#####################################
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////## group 16
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////#####################################
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assign g16ev[6] = (~(g08ev_b[6]));
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assign g16ev[5] = (~(g08ev_b[5]));
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assign g16ev[4] = (~(g08ev_b[4]));
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assign g16ev[3] = (~(g08ev_b[3]));
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assign g16ev[2] = (~((t08ev_b[2] | g08ev_b[6]) & g08ev_b[2])); //final
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assign g16ev[1] = (~((t08ev_b[1] | g08ev_b[5]) & g08ev_b[1])); //final
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assign t16ev[6] = (~(t08ev_b[6]));
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assign t16ev[5] = (~(t08ev_b[5]));
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assign t16ev[4] = (~(t08ev_b[4]));
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assign t16ev[3] = (~(t08ev_b[3]));
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assign t16ev[2] = (~((t08ev_b[2] | t08ev_b[6]) & g08ev_b[2])); //final
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assign t16ev[1] = (~((t08ev_b[1] | t08ev_b[5]) & g08ev_b[1])); //final
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////#####################################
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////## group 16 delayed
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////#####################################
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assign c0_b[12] = (~(g16ev[6]));
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assign c0_b[10] = (~(g16ev[5]));
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assign c0_b[8] = (~(g16ev[4]));
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assign c0_b[6] = (~(g16ev[3]));
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assign c0_b[4] = (~(g16ev[2]));
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assign c0_b[2] = (~(g16ev[1]));
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assign c1_b[12] = (~(t16ev[6]));
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assign c1_b[10] = (~(t16ev[5]));
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assign c1_b[8] = (~(t16ev[4]));
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assign c1_b[6] = (~(t16ev[3]));
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assign c1_b[4] = (~(t16ev[2]));
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assign c1_b[2] = (~(t16ev[1]));
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assign c0_b[11] = (~((t01od[5] & g16ev[6]) | g01od[5]));
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assign c0_b[9] = (~((t01od[4] & g16ev[5]) | g01od[4]));
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assign c0_b[7] = (~((t01od[3] & g16ev[4]) | g01od[3]));
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assign c0_b[5] = (~((t01od[2] & g16ev[3]) | g01od[2]));
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assign c0_b[3] = (~((t01od[1] & g16ev[2]) | g01od[1]));
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assign c0_b[1] = (~((t01od[0] & g16ev[1]) | g01od[0]));
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assign c1_b[13] = (~(t01od[6]));
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assign c1_b[11] = (~((t01od[5] & t16ev[6]) | g01od[5]));
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assign c1_b[9] = (~((t01od[4] & t16ev[5]) | g01od[4]));
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assign c1_b[7] = (~((t01od[3] & t16ev[4]) | g01od[3]));
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assign c1_b[5] = (~((t01od[2] & t16ev[3]) | g01od[2]));
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assign c1_b[3] = (~((t01od[1] & t16ev[2]) | g01od[1]));
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assign c1_b[1] = (~((t01od[0] & t16ev[1]) | g01od[0]));
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////#####################################
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////## sum
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////#####################################
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assign s0[0] = (p01_b[0] ^ c0_b[1]);
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assign s0[1] = (p01_b[1] ^ c0_b[2]);
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assign s0[2] = (p01_b[2] ^ c0_b[3]);
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assign s0[3] = (p01_b[3] ^ c0_b[4]);
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assign s0[4] = (p01_b[4] ^ c0_b[5]);
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assign s0[5] = (p01_b[5] ^ c0_b[6]);
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assign s0[6] = (p01_b[6] ^ c0_b[7]);
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assign s0[7] = (p01_b[7] ^ c0_b[8]);
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assign s0[8] = (p01_b[8] ^ c0_b[9]);
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assign s0[9] = (p01_b[9] ^ c0_b[10]);
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assign s0[10] = (p01_b[10] ^ c0_b[11]);
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assign s0[11] = (p01_b[11] ^ c0_b[12]);
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assign s0[12] = (~(p01_b[12]));
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assign s0[13] = (~(p01_b[13]));
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assign s1[0] = (p01_b[0] ^ c1_b[1]);
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assign s1[1] = (p01_b[1] ^ c1_b[2]);
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assign s1[2] = (p01_b[2] ^ c1_b[3]);
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assign s1[3] = (p01_b[3] ^ c1_b[4]);
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assign s1[4] = (p01_b[4] ^ c1_b[5]);
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assign s1[5] = (p01_b[5] ^ c1_b[6]);
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assign s1[6] = (p01_b[6] ^ c1_b[7]);
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assign s1[7] = (p01_b[7] ^ c1_b[8]);
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assign s1[8] = (p01_b[8] ^ c1_b[9]);
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assign s1[9] = (p01_b[9] ^ c1_b[10]);
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assign s1[10] = (p01_b[10] ^ c1_b[11]);
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assign s1[11] = (p01_b[11] ^ c1_b[12]);
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assign s1[12] = (p01_b[12] ^ c1_b[13]);
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assign s1[13] = (~(p01[13]));
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endmodule
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