95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
/*
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* Copyright (c) 2003 Stephen Williams (steve@icarus.com)
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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 program tests change callbacks on real variables.
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*/
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# include <vpi_user.h>
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# include <assert.h>
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static PLI_INT32 watchreal_cb(p_cb_data cb)
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{
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s_vpi_value value;
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vpiHandle arg = (vpiHandle) (cb->user_data);
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value.format = vpiRealVal;
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vpi_get_value(arg, &value);
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assert(value.format == vpiRealVal);
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vpi_printf("watchreal: %s = %f\n",
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vpi_get_str(vpiName, arg),
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value.value.real);
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return 0;
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}
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#ifdef IVERILOG_V0_8
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static PLI_INT32 my_watchreal_calltf(char *xx)
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#else
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static PLI_INT32 my_watchreal_calltf(PLI_BYTE8 *xx)
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#endif
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{
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struct t_cb_data cb;
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struct t_vpi_time timerec;
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(void)xx; /* Parameter is not used. */
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vpiHandle sys = vpi_handle(vpiSysTfCall, 0);
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vpiHandle argv = vpi_iterate(vpiArgument, sys);
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vpiHandle arg;
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timerec.type = vpiSimTime;
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timerec.low = 0;
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timerec.high = 0;
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while (0 != (arg = vpi_scan(argv))) {
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assert(vpi_get(vpiType, arg) == vpiRealVar);
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cb.reason = cbValueChange;
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cb.cb_rtn = watchreal_cb;
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cb.time = &timerec;
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cb.obj = arg;
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cb.value = 0;
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cb.user_data = (char*)arg;
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vpi_register_cb(&cb);
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}
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return 0;
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}
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static void my_watchreal_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_watchreal";
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tf_data.calltf = my_watchreal_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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void (*vlog_startup_routines[])(void) = {
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my_watchreal_register,
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0
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};
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