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https://github.com/steveicarus/iverilog.git
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Stephen Williams
cea237b407
By adding ivtest to the iverilog source tree, it is easier to keep the regression test synchronized with the source that is being tested. This should be especially helpful for PRs that add a new feature, and have a matching ivtest PR with the regression test for that feature.
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
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* Copyright (c) 2002 Stephen Williams ([email protected])
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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/*
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* This file contains an example VPI module to demonstrate the tools
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* to create vpi modules. To compile this module, use the iverilog-vpi
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* command like so:
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*
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* iverilog-vpi hello_vpi.c
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*
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* The result is the hello_vpi.vpi module. See the hello_vpi.vl
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* program for example Verilog code to call this module.
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*/
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# include <vpi_user.h>
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#ifdef IVERILOG_V0_8
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static PLI_INT32 my_hello_calltf(char *xx)
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#else
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static PLI_INT32 my_hello_calltf(PLI_BYTE8 *xx)
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#endif
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{
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(void)xx; /* Parameter is not used. */
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vpi_printf("Hello World, from VPI.\n");
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return 0;
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}
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static void my_hello_register(void)
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{
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s_vpi_systf_data tf_data;
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tf_data.type = vpiSysTask;
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tf_data.tfname = "$my_hello";
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tf_data.calltf = my_hello_calltf;
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tf_data.compiletf = 0;
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tf_data.sizetf = 0;
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vpi_register_systf(&tf_data);
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}
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/*
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* This is a table of register functions. This table is the external
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* symbol that the simulator looks for when loading this .vpi module.
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*/
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void (*vlog_startup_routines[])(void) = {
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my_hello_register,
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0
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};
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