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/* yForth? - A Forth interpreter written in ANSI C
* Copyright (C) 2012 Luca Padovani
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 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, see <http://www.gnu.org/licenses/>.
* ------------------------------------------------------------------------
* Module name: ycore.c
* Abstract: Words defined for this particular implementation of
forth. Do not expect to find these words in other
implementations.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "ver.h"
#include "yforth.h"
#include "core.h"
#include "file.h"
#include "search.h"
/**************************************************************************/
/* WORDS DEFINITION *******************************************************/
/**************************************************************************/
/* ( --- ) print current version of yForth? */
void _yforth_version() {
print_version();
}
/* ( c-addr u --- ) save a snapshot of the current dictionary and vocabulary
* search order
*/
void _save_image() {
FILE *f = fopen(get_file_name(), "wb");
struct image_header hd;
struct voc_marker vm;
if (f) {
memset(&hd, 0, sizeof(struct image_header));
strcpy(hd.header, "yForth? Image File\n");
hd.ver_hi = VER_HI;
hd.ver_lo = VER_LO;
hd.base = dp0;
hd.dspace_size = dspace_size;
hd.pattern = VERSION_PATTERN;
if (fwrite(&hd, sizeof(struct image_header), 1, f) < 1) _error = E_NOFILE;
else {
save_vocabulary(&vm);
if (fwrite(&vm, sizeof(struct voc_marker), 1, f) < 1) _error = E_NOFILE;
else {
if (fwrite(dp0, sizeof(Cell), dspace_size, f) < dspace_size)
_error = E_NOFILE;
}
}
fclose(f);
} else _error = E_NOFILE;
}
/* ( c-addr u --- n ) execute command pointeb by c-addr via "system", n is
* the result of operation as described in the C library manual
*/
void _system() {
register UCell len = *sp++;
register Char *name = (Char *) *sp;
extern Char s_tmp_buffer[];
memcpy(s_tmp_buffer, name, len);
s_tmp_buffer[len] = '\0';
*sp = system(s_tmp_buffer);
}
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