/////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////
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// Copyright 2014 Ken Campbell
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// Copyright 2014 Ken Campbell
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//
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// You may obtain a copy of the License at
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//
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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//
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// Unless required by applicable law or agreed to in writing, software
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// limitations under the License.
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//
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//
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// test bench module file template.
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// test bench module file template.
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////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////
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>>header
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>>header
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// The package.
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// The package.
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`include "../sv/tb_pkg.sv"
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`include "../sv/tb_pkg.sv"
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module tb_mod (dut_if.tb_conn tif);
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module tb_mod (dut_if.tb_conn tif);
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import tb_pkg::*;
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import tb_pkg::*;
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// some handy defs
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`define PAR1 r.rtn_val.par1
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`define PAR2 r.rtn_val.par2
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`define PAR3 r.rtn_val.par3
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`define PAR4 r.rtn_val.par4
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// package and container
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// package and container
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cmd_lst cmds;
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cmd_lst cmds;
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tb_trans r;
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tb_trans r;
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integer in_fh;
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integer in_fh;
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integer stat;
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integer stat;
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logic clock;
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logic clock;
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//////////////////////////////////////////////
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//////////////////////////////////////////////
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// DUT signals
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// DUT signals
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>>insert sigs
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>>insert sigs
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////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////
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// drive DUT signals through interface
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// drive DUT signals through interface
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>>drive sigs
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>>drive sigs
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////////////////////////////////////////////////////
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////////////////////////////////////////////////////
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// instruction variables
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// instruction variables
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integer was_def = 0;
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integer was_def = 0;
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string cmd_string;
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string cmd_string;
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logic [31:0] tmp_vec;
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logic [31:0] tmp_vec;
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////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////
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// clock driver
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// clock driver
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initial begin
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initial begin
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while(1) begin
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while(1) begin
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#10 clock = 0;
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#10 clock = 0;
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#10 clock = 1;
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#10 clock = 1;
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end
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end
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end
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end
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//////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////
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// stimulus_file processing
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// stimulus_file processing
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initial begin : Process_STM
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initial begin : Process_STM
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cmds = new();
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cmds = new();
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r = new();
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r = new();
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// define the default instructions
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// define the default instructions
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cmds.define_defaults();
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cmds.define_defaults();
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// User instructions
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// User instructions
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cmds.define_instruction("RESET", 0);
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cmds.define_instruction("RESET", 0);
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//cmds.define_instruction("READ", 1);
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//cmds.define_instruction("READ", 1);
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//cmds.define_instruction("WRITE", 2);
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//cmds.define_instruction("WRITE", 2);
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//cmds.define_instruction("VERIFY", 1);
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//cmds.define_instruction("VERIFY", 1);
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// load the stimulus file
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// load the stimulus file
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cmds.load_stm(`STM_FILE);
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cmds.load_stm(tb_top.STM_FILE);
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r.cmd = cmds;
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r.cmd = cmds;
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/////////////////////////////////////////////////////
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/////////////////////////////////////////////////////
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// the main loop.
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// the main loop.
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while (r.cmd != null) begin
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while (r.cmd != null) begin
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r = r.cmd.get(r);
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r = r.cmd.get(r);
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r.next++;
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r.next++;
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// process default instructions
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// process default instructions
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was_def = r.cmd.exec_defaults(r);
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was_def = r.cmd.exec_defaults(r);
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if(was_def) begin
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if(was_def) begin
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continue;
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continue;
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end
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end
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///////////////////////////////////////////////////////
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///////////////////////////////////////////////////////
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// Process User instructions.
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// Process User instructions.
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// get the command string
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// get the command string
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cmd_string = r.cmd.lst_cmds.cmd;
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cmd_string = r.cmd.lst_cmds.cmd;
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// output the dynamic text if there is some. (Note: before command runs.)
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// output the dynamic text if there is some. (Note: before command runs.)
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r.cmd.print_str_wvar();
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r.cmd.print_str_wvar();
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///////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////
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// RESET
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// RESET
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if (cmd_string == "RESET") begin
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if (cmd_string == "RESET") begin
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@(posedge clock)
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@(posedge clock);
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///////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////
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// READ
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// READ
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//end else if (cmd_string == "READ") begin
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//end else if (cmd_string == "READ") begin
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// @(posedge clock)
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// @(posedge clock)
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///////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////
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// WRITE
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// WRITE
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//end else if (cmd_string == "WRITE") begin
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//end else if (cmd_string == "WRITE") begin
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//////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////
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// VERIFY
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// VERIFY
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//end else if (cmd_string == "VERIFY") begin
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//end else if (cmd_string == "VERIFY") begin
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// verify_command : assert (tmp_vec == r.rtn_val.par1) else begin
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// verify_command : assert (tmp_vec == r.rtn_val.par1) else begin
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// $fatal(0,"VERIFY failed expected: %x Got: %x", r.rtn_val.par1, tmp_vec);
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// $fatal(0,"VERIFY failed expected: %x Got: %x", r.rtn_val.par1, tmp_vec);
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// end
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// end
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end else begin
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end else begin
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$display("ERROR: Command not found in the else if chain. Is it spelled correctly in the else if?");
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$display("ERROR: Command not found in the else if chain. Is it spelled correctly in the else if?");
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end // end of else if chain
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end // end of else if chain
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end // end main while loop
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end // end main while loop
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// should never end up outside the while loop.
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// should never end up outside the while loop.
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$display("ERROR: Some how, a run off the beginning or end of the instruction sequence, has not been caught!!");
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$display("ERROR: Some how, a run off the beginning or end of the instruction sequence, has not been caught!!");
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end // end Process_STM
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end // end Process_STM
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endmodule // tb_mod
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endmodule // tb_mod
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