68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
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/*
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* Copyright (C) 2008 Cary R. (cygcary@yahoo.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "vpi_config.h"
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#include <assert.h>
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#include <vpi_user.h>
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/*
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* Routine to return the width in bits of a CPU word (long).
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*/
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static PLI_INT32 vvp_cpu_wordsize_calltf(PLI_BYTE8* ud)
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{
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vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
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assert(callh != 0);
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s_vpi_value val;
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(void) ud; /* Not used! */
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/* Calculate the result */
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val.format = vpiIntVal;
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val.value.integer = 8*sizeof(long);
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/* Return the result */
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vpi_put_value(callh, &val, 0, vpiNoDelay);
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return 0;
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}
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static PLI_INT32 size_32(PLI_BYTE8* ud)
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{
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(void) ud; /* Not used! */
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return 32;
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}
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/*
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* Register the function with Verilog.
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*/
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void sys_special_register(void)
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{
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s_vpi_systf_data tf_data;
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/* Register the single argument functions. */
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tf_data.type = vpiSysFunc;
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tf_data.sysfunctype = vpiIntFunc;
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tf_data.calltf = vvp_cpu_wordsize_calltf;
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tf_data.compiletf = 0;
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tf_data.sizetf = size_32;
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tf_data.tfname = "$vvp_cpu_wordsize";
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tf_data.user_data = 0;
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vpi_register_systf(&tf_data);
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}
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