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/*
* Copyright (c) 2012-2021 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
# include "sys_priv.h"
# include <assert.h>
# include <ctype.h>
# include <math.h>
# include <stdlib.h>
# include <string.h>
static PLI_INT32 one_arg_compiletf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv;
vpiHandle arg;
argv = vpi_iterate(vpiArgument, callh);
if (argv == 0) {
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s requires a single argument.\n", name);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
arg = vpi_scan(argv);
if (arg == 0) return 0;
arg = vpi_scan(argv);
if (arg != 0) {
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s has too many arguments.\n", name);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
return 0;
}
static PLI_INT32 two_arg_compiletf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv;
vpiHandle arg;
argv = vpi_iterate(vpiArgument, callh);
if (argv == 0) {
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s missing arguments.\n", name);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
arg = vpi_scan(argv);
if (argv == 0) {
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s missing object argument.\n", name);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
arg = vpi_scan(argv);
if (argv == 0) {
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s missing method argument.\n", name);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
arg = vpi_scan(argv);
if (arg != 0) {
vpi_printf("ERROR: %s:%d: ", vpi_get_str(vpiFile, callh),
(int)vpi_get(vpiLineNo, callh));
vpi_printf("%s has too many arguments.\n", name);
vpip_set_return_value(1);
vpi_control(vpiFinish, 1);
return 0;
}
return 0;
}
static PLI_INT32 len_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv;
vpiHandle arg;
(void)name; /* Parameter is not used. */
argv = vpi_iterate(vpiArgument, callh);
assert(argv);
arg = vpi_scan(argv);
assert(arg);
vpi_free_object(argv);
int res = vpi_get(vpiSize, arg);
s_vpi_value value;
value.format = vpiIntVal;
value.value.integer = res;
vpi_put_value(callh, &value, 0, vpiNoDelay);
return 0;
}
static PLI_INT32 atoi_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv;
vpiHandle arg;
s_vpi_value value;
(void)name; /* Parameter not used */
argv = vpi_iterate(vpiArgument, callh);
assert(argv);
arg = vpi_scan(argv);
assert(arg);
vpi_free_object(argv);
int res = 0;
value.format = vpiStringVal;
vpi_get_value(arg, &value);
const char*bufp = value.value.str;
while (bufp && *bufp) {
if (isdigit(*bufp)) {
res = (res * 10) + (*bufp - '0');
bufp += 1;
} else if (*bufp == '_') {
bufp += 1;
} else {
bufp = 0;
}
}
value.format = vpiIntVal;
value.value.integer = res;
vpi_put_value(callh, &value, 0, vpiNoDelay);
return 0;
}
static PLI_INT32 atoreal_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv;
vpiHandle arg;
s_vpi_value value;
(void)name; /* Parameter not used */
argv = vpi_iterate(vpiArgument, callh);
assert(argv);
arg = vpi_scan(argv);
assert(arg);
vpi_free_object(argv);
double res = 0;
value.format = vpiStringVal;
vpi_get_value(arg, &value);
res = strtod(value.value.str, 0);
value.format = vpiRealVal;
value.value.real = res;
vpi_put_value(callh, &value, 0, vpiNoDelay);
return 0;
}
static PLI_INT32 atohex_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv;
vpiHandle arg;
s_vpi_value value;
(void)name; /* Parameter not used */
argv = vpi_iterate(vpiArgument, callh);
assert(argv);
arg = vpi_scan(argv);
assert(arg);
vpi_free_object(argv);
int res = 0;
value.format = vpiStringVal;
vpi_get_value(arg, &value);
const char*bufp = value.value.str;
while (bufp && *bufp) {
switch (*bufp) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
res = (res * 16) + (*bufp - '0');
bufp += 1;
break;
case 'a': case 'A':
case 'b': case 'B':
case 'c': case 'C':
case 'd': case 'D':
case 'e': case 'E':
case 'f': case 'F':
res = (res * 16) + (toupper(*bufp) - 'A' + 10);
bufp += 1;
break;
case '_':
bufp += 1;
break;
default:
bufp = 0;
break;
}
}
value.format = vpiIntVal;
value.value.integer = res;
vpi_put_value(callh, &value, 0, vpiNoDelay);
return 0;
}
/*
* Convert a val to a text string that represents the value. The base
* is the integer base to use for the conversion. The base will be one
* of the values 2, 8, 10, or 16. If the input value is negative, then
* extract the sign out (and put a '-' in the beginning of the string and
* write the digits for the abs(val). For example, if the input value
* is -11 and base is 8, then the text output will be "-13".
*/
static void value_to_text_base(char*text, long val, long base)
{
static const char digit_map[16] = "0123456789abcdef";
char* ptr;
assert(base <= 16);
if (val == 0) {
text[0] = '0';
text[1] = 0;
return;
}
if (val < 0) {
*text++ = '-';
val = 0-val;
}
ptr = text;
while (val != 0) {
long digit = val % base;
val /= base;
*(ptr++) = digit_map[digit];
*ptr = 0;
}
/* Now the text string is valid, but digits are reversed. */
ptr -= 1;
while (text < ptr) {
char tmp = *ptr;
*ptr = *text;
*text = tmp;
ptr -= 1;
text += 1;
}
}
/*
* This function implements the <string>.itoa(arg) method.
* The first argument to this task is the <string> object, and the second
* is the value to interpret.
*/
static PLI_INT32 xtoa_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv;
vpiHandle obj, arg;
s_vpi_value value;
char text_buf[64];
long use_base;
use_base = strtoul(name, 0, 10);
argv = vpi_iterate(vpiArgument, callh);
assert(argv);
obj = vpi_scan(argv);
assert(obj);
arg = vpi_scan(argv);
assert(arg);
vpi_free_object(argv);
value.format = vpiIntVal;
vpi_get_value(arg, &value);
value_to_text_base(text_buf, value.value.integer, use_base);
value.format = vpiStringVal;
value.value.str = text_buf;
vpi_put_value(obj, &value, 0, vpiNoDelay);
return 0;
}
static PLI_INT32 realtoa_calltf(ICARUS_VPI_CONST PLI_BYTE8*name)
{
vpiHandle callh = vpi_handle(vpiSysTfCall, 0);
vpiHandle argv;
vpiHandle obj, arg;
s_vpi_value value;
char text_buf[64];
(void) name;
argv = vpi_iterate(vpiArgument, callh);
assert(argv);
obj = vpi_scan(argv);
assert(obj);
arg = vpi_scan(argv);
assert(arg);
vpi_free_object(argv);
value.format = vpiRealVal;
vpi_get_value(arg, &value);
snprintf(text_buf, sizeof text_buf, "%g", value.value.real);
value.format = vpiStringVal;
value.value.str = text_buf;
vpi_put_value(obj, &value, 0, vpiNoDelay);
return 0;
}
void v2009_string_register(void)
{
s_vpi_systf_data tf_data;
vpiHandle res;
tf_data.type = vpiSysFunc;
tf_data.sysfunctype = vpiIntFunc;
tf_data.tfname = "$ivl_string_method$len";
tf_data.calltf = len_calltf;
tf_data.compiletf = one_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "$ivl_string_method$len";
res = vpi_register_systf(&tf_data);
vpip_make_systf_system_defined(res);
tf_data.type = vpiSysFunc;
tf_data.sysfunctype = vpiIntFunc;
tf_data.tfname = "$ivl_string_method$atoi";
tf_data.calltf = atoi_calltf;
tf_data.compiletf = one_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "$ivl_string_method$atoi";
res = vpi_register_systf(&tf_data);
vpip_make_systf_system_defined(res);
tf_data.type = vpiSysFunc;
tf_data.sysfunctype = vpiRealFunc;
tf_data.tfname = "$ivl_string_method$atoreal";
tf_data.calltf = atoreal_calltf;
tf_data.compiletf = one_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "$ivl_string_method$atoreal";
res = vpi_register_systf(&tf_data);
vpip_make_systf_system_defined(res);
tf_data.type = vpiSysFunc;
tf_data.sysfunctype = vpiIntFunc;
tf_data.tfname = "$ivl_string_method$atohex";
tf_data.calltf = atohex_calltf;
tf_data.compiletf = one_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "$ivl_string_method$atohex";
res = vpi_register_systf(&tf_data);
vpip_make_systf_system_defined(res);
tf_data.type = vpiSysTask;
tf_data.tfname = "$ivl_string_method$itoa";
tf_data.calltf = xtoa_calltf;
tf_data.compiletf = two_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "10";
res = vpi_register_systf(&tf_data);
tf_data.type = vpiSysTask;
tf_data.tfname = "$ivl_string_method$hextoa";
tf_data.calltf = xtoa_calltf;
tf_data.compiletf = two_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "16";
res = vpi_register_systf(&tf_data);
tf_data.type = vpiSysTask;
tf_data.tfname = "$ivl_string_method$octtoa";
tf_data.calltf = xtoa_calltf;
tf_data.compiletf = two_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "8";
res = vpi_register_systf(&tf_data);
tf_data.type = vpiSysTask;
tf_data.tfname = "$ivl_string_method$bintoa";
tf_data.calltf = xtoa_calltf;
tf_data.compiletf = two_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "2";
res = vpi_register_systf(&tf_data);
tf_data.type = vpiSysTask;
tf_data.tfname = "$ivl_string_method$realtoa";
tf_data.calltf = realtoa_calltf;
tf_data.compiletf = two_arg_compiletf;
tf_data.sizetf = 0;
tf_data.user_data = "$ivl_string_method$realtoa";
res = vpi_register_systf(&tf_data);
vpip_make_systf_system_defined(res);
}
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