387 lines
12 KiB
C
387 lines
12 KiB
C
/*
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* Copyright (C) 2013 Cary R. (cygcary@yahoo.com)
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* Copyright (C) 2014 Stephen Williams (steve@icarus.com)
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* Copyright (C) 2014 CERN
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* @author Maciej Suminski (maciej.suminski@cern.ch)
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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 "sys_priv.h"
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# include <assert.h>
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# include <math.h>
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# include <stdlib.h>
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# include <string.h>
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static PLI_INT32 one_array_arg_compiletf(ICARUS_VPI_CONST PLI_BYTE8*name)
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{
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vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
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vpiHandle argv;
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vpiHandle arg;
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argv = vpi_iterate(vpiArgument, callh);
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if (argv == 0) {
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vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
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(int)vpi_get(vpiLineNo, callh));
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vpi_printf("%s requires an array argument.\n", name);
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vpi_control(vpiFinish, 1);
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return 0;
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}
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arg = vpi_scan(argv);
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if (arg == 0) return 0;
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arg = vpi_scan(argv);
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if (arg != 0) {
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vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
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(int)vpi_get(vpiLineNo, callh));
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vpi_printf("%s has too many arguments.\n", name);
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vpi_control(vpiFinish, 1);
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return 0;
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}
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return 0;
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}
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static PLI_INT32 func_not_implemented_compiletf(ICARUS_VPI_CONST PLI_BYTE8* name)
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{
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vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
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vpi_printf("SORRY: %s:%d: function %s() is not currently implemented.\n",
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vpi_get_str(vpiFile, callh), (int)vpi_get(vpiLineNo, callh),
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name);
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vpi_control(vpiFinish, 1);
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return 0;
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}
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static void high_array(const char*name, vpiHandle callh, vpiHandle arg)
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{
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s_vpi_value value;
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int array_type;
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int size;
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switch ( (array_type = vpi_get(vpiArrayType, arg)) ) {
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case vpiDynamicArray:
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case vpiQueueArray:
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size = vpi_get(vpiSize, arg);
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value.format = vpiIntVal;
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value.value.integer = size - 1;
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vpi_put_value(callh, &value, 0, vpiNoDelay);
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break;
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default:
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vpi_printf("SORRY: %s:%d: function %s() argument object code is %d\n",
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vpi_get_str(vpiFile,callh), (int)vpi_get(vpiLineNo, callh),
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name, array_type);
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break;
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}
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}
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static PLI_INT32 high_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
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{
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vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
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vpiHandle argv;
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vpiHandle arg;
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int object_code;
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(void)name; /* Parameter is not used. */
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argv = vpi_iterate(vpiArgument, callh);
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assert(argv);
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arg = vpi_scan(argv);
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assert(arg);
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vpi_free_object(argv);
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switch ( (object_code = vpi_get(vpiType, arg)) ) {
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case vpiArrayVar:
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high_array(name, callh, arg);
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break;
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default:
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vpi_printf("SORRY: %s:%d: function %s() argument object code is %d\n",
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vpi_get_str(vpiFile,callh), (int)vpi_get(vpiLineNo, callh),
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name, object_code);
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return 0;
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}
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return 0;
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}
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static void low_array(const char*name, vpiHandle callh, vpiHandle arg)
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{
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s_vpi_value value;
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int array_type;
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switch ( (array_type = vpi_get(vpiArrayType, arg)) ) {
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case vpiDynamicArray:
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case vpiQueueArray:
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value.format = vpiIntVal;
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value.value.integer = 0;
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vpi_put_value(callh, &value, 0, vpiNoDelay);
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break;
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default:
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vpi_printf("SORRY: %s:%d: function %s() argument object code is %d\n",
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vpi_get_str(vpiFile,callh), (int)vpi_get(vpiLineNo, callh),
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name, array_type);
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break;
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}
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}
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static PLI_INT32 low_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
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{
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vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
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vpiHandle argv;
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vpiHandle arg;
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int object_code;
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(void)name; /* Parameter is not used. */
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argv = vpi_iterate(vpiArgument, callh);
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assert(argv);
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arg = vpi_scan(argv);
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assert(arg);
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vpi_free_object(argv);
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switch ( (object_code = vpi_get(vpiType, arg)) ) {
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case vpiArrayVar:
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low_array(name, callh, arg);
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break;
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default:
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vpi_printf("SORRY: %s:%d: function %s() argument object code is %d\n",
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vpi_get_str(vpiFile,callh), (int)vpi_get(vpiLineNo, callh),
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name, object_code);
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return 0;
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}
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return 0;
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}
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static PLI_INT32 to_vec_compiletf(ICARUS_VPI_CONST PLI_BYTE8*user_data)
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{
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(void) user_data; /* Parameter is not used. */
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vpiHandle systf_handle, arg_iterator, arg_handle;
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PLI_INT32 arg_type[2];
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/* obtain a handle to the system task instance */
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systf_handle = vpi_handle(vpiSysTfCall, NULL);
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if (systf_handle == NULL) {
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vpi_printf("ERROR: $ivl_darray_method$to_vec failed to obtain systf handle\n");
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vpi_control(vpiFinish,0); /* abort simulation */
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return 0;
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}
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/* obtain handles to system task arguments */
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arg_iterator = vpi_iterate(vpiArgument, systf_handle);
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if (arg_iterator == NULL) {
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vpi_printf("ERROR: $ivl_darray_method$to_vec requires 2 arguments\n");
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vpi_control(vpiFinish, 0);
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return 0;
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}
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/* check the type of object in system task arguments */
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arg_handle = vpi_scan(arg_iterator);
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for(int i = 0; i < 2; ++i) {
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arg_type[i] = vpi_get(vpiType, arg_handle);
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arg_handle = vpi_scan(arg_iterator);
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}
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if (arg_handle != NULL) { /* are there more arguments? */
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vpi_printf("ERROR: $ivl_darray_method$to_vec can only have 2 arguments\n");
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vpi_free_object(arg_iterator);
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vpi_control(vpiFinish, 0);
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return 0;
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}
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if ((arg_type[0] != vpiRegArray) ||
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(arg_type[1] != vpiNet && arg_type[1] != vpiReg && arg_type[1] != vpiBitVar)) {
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vpi_printf("ERROR: $ivl_darray_method$to_vec value arguments must be a dynamic array and a net or reg\n");
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vpi_free_object(arg_iterator);
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vpi_control(vpiFinish, 0);
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return 0;
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}
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return 0;
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}
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static PLI_INT32 to_vec_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
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{
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(void)name; /* Parameter is not used. */
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const unsigned int PLI_INT32_bits = sizeof(PLI_INT32) * 8;
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vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
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vpiHandle argv, darr, darr_word, vec;
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s_vpi_value darr_val;
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s_vpi_vecval*vec_val;
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/* Fetch arguments */
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argv = vpi_iterate(vpiArgument, callh);
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assert(argv);
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darr = vpi_scan(argv);
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assert(darr);
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vec = vpi_scan(argv);
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assert(vec);
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vpi_free_object(argv);
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int darr_length = vpi_get(vpiSize, darr);
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darr_word = vpi_handle_by_index(darr, 0);
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int darr_word_bit_size = vpi_get(vpiSize, darr_word);
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int darr_bit_size = darr_length * darr_word_bit_size;
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int vec_size = vpi_get(vpiSize, vec);
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if(darr_length <= 0) {
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vpi_printf("ERROR: Cannot cast empty dynamic array");
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vpi_control(vpiFinish, 0);
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return 0;
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}
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if(vec_size != darr_bit_size) {
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vpi_printf("ERROR: Dynamic array and vector size do not match");
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vpi_control(vpiFinish, 0);
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return 0;
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}
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/* Conversion part */
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int vec_number = ceil((double)darr_bit_size / PLI_INT32_bits);
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vec_val = calloc(vec_number, sizeof(s_vpi_vecval));
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int darr_number = ceil((double)darr_word_bit_size / PLI_INT32_bits);
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darr_val.format = vpiVectorVal;
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unsigned int offset = 0;
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s_vpi_vecval*vec_val_ptr = vec_val;
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vec_val_ptr->aval = 0;
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vec_val_ptr->bval = 0;
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/* We have to reverse the order of the dynamic array, no memcpy here */
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for(int i = darr_length - 1; i >= 0; --i) {
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unsigned int bits_to_copy = darr_word_bit_size;
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darr_word = vpi_handle_by_index(darr, i);
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vpi_get_value(darr_word, &darr_val);
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assert(darr_val.value.vector);
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for(int j = 0; j < darr_number; ++j) {
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PLI_INT32 aval = darr_val.value.vector->aval;
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PLI_INT32 bval = darr_val.value.vector->bval;
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if(offset < PLI_INT32_bits) {
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vec_val_ptr->aval |= (aval << offset);
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vec_val_ptr->bval |= (bval << offset);
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}
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offset += bits_to_copy > PLI_INT32_bits ? PLI_INT32_bits : bits_to_copy;
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if(offset >= PLI_INT32_bits) {
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++vec_val_ptr;
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vec_val_ptr->aval = 0;
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vec_val_ptr->bval = 0;
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// is the current word crossing the s_vpi_vecval boundary?
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if(offset > PLI_INT32_bits) {
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// this assert is to warn you, that the following
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// part could not be tested at the moment of writing
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// (dynamic arrays work with vectors of 8, 16, 32, 64
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// bits, so there is no chance that one of the vectors
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// will cross the s_vpi_vecval boundary)
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// it *may* work, but it is better to check first
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assert(0);
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// copy the remainder that did not fit in the previous s_vpi_vecval
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offset -= PLI_INT32_bits;
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vec_val_ptr->aval |= (aval >> (darr_word_bit_size - offset));
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vec_val_ptr->bval |= (bval >> (darr_word_bit_size - offset));
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} else {
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offset = 0;
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}
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}
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bits_to_copy -= PLI_INT32_bits;
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darr_val.value.vector++;
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}
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}
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darr_val.format = vpiVectorVal;
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darr_val.value.vector = vec_val;
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vpi_put_value(vec, &darr_val, 0, vpiNoDelay);
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free(vec_val);
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return 0;
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}
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void v2009_array_register(void)
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{
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s_vpi_systf_data tf_data;
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vpiHandle res;
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tf_data.type = vpiSysTask;
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tf_data.sysfunctype = 0;
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tf_data.tfname = "$ivl_darray_method$to_vec";
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tf_data.calltf = to_vec_calltf;
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tf_data.compiletf = to_vec_compiletf;
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tf_data.sizetf = 0;
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tf_data.user_data = "$ivl_darray_method$to_vec";
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res = vpi_register_systf(&tf_data);
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vpip_make_systf_system_defined(res);
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tf_data.type = vpiSysFunc;
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tf_data.sysfunctype = vpiIntFunc;
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tf_data.calltf = 0;
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tf_data.compiletf = func_not_implemented_compiletf;;
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tf_data.sizetf = 0;
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/* These functions are not currently implemented. */
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tf_data.tfname = "$dimensions";
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tf_data.user_data = "$dimensions";
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res = vpi_register_systf(&tf_data);
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vpip_make_systf_system_defined(res);
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tf_data.tfname = "$unpacked_dimensions";
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tf_data.user_data = "$unpacked_dimensions";
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res = vpi_register_systf(&tf_data);
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vpip_make_systf_system_defined(res);
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tf_data.tfname = "$left";
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tf_data.user_data = "$left";
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res = vpi_register_systf(&tf_data);
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vpip_make_systf_system_defined(res);
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tf_data.tfname = "$right";
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tf_data.user_data = "$right";
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res = vpi_register_systf(&tf_data);
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vpip_make_systf_system_defined(res);
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tf_data.tfname = "$increment";
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tf_data.user_data = "$increment";
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res = vpi_register_systf(&tf_data);
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vpip_make_systf_system_defined(res);
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tf_data.tfname = "$high";
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tf_data.user_data = "$high";
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tf_data.compiletf = one_array_arg_compiletf;
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tf_data.calltf = high_calltf;
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res = vpi_register_systf(&tf_data);
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vpip_make_systf_system_defined(res);
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tf_data.tfname = "$low";
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tf_data.user_data = "$low";
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tf_data.compiletf = one_array_arg_compiletf;
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tf_data.calltf = low_calltf;
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res = vpi_register_systf(&tf_data);
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vpip_make_systf_system_defined(res);
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}
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