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- /**
- ** CRSHTEST.C
- **
- ** Copyright (C) 1992, Csaba Biegl
- ** 820 Stirrup Dr, Nashville, TN, 37221
- ** csaba@vuse.vanderbilt.edu
- **
- ** This file is distributed under the terms listed in the document
- ** "copying.cb", available from the author at the address above.
- ** A copy of "copying.cb" should accompany this file; if not, a copy
- ** should be available from where this file was obtained. This file
- ** may not be distributed without a verbatim copy of "copying.cb".
- ** You should also have received a copy of the GNU General Public
- ** License along with this program (it is in the file "copying");
- ** if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- ** Cambridge, MA 02139, USA.
- **
- ** 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.
- **/
-
- #include <stdlib.h>
- #include <string.h>
- #include <stdio.h>
-
- void main(int argc,char **argv)
- {
- char *ptr;
- int test;
-
- printf("Segmentation violation test for DJGPP\n");
- fflush(stdout);
- if((argc > 1) && (strcmp(argv[1],"-h") == 0)) {
- ptr = (char *)(((int)sbrk(0) + 100000) & ~ 4095) - 1;
- brk(ptr);
- printf("end or RAM = 0x%08x\n",ptr);
- printf("accessing *(ptr - 1) ...\n");
- fflush(stdout);
- test = *(ptr - 1);
- printf("OK!\n");
- printf("accessing *ptr ...\n");
- fflush(stdout);
- test = *ptr;
- printf("OK!\n");
- printf("accessing *(ptr + 1) ...\n");
- fflush(stdout);
- test = *(ptr + 1);
- printf("OK!!!!!! (what ?)\n");
- for( ; ; ) test = *ptr++;
- }
- else {
- ptr = (char *)0xd0000000;
- printf("start of VIDEO RAM = 0x%08x\n",ptr);
- printf("accessing *ptr ...\n");
- fflush(stdout);
- test = *ptr;
- printf("OK!\n");
- printf("accessing *(ptr - 1) ...\n");
- fflush(stdout);
- test = *(ptr - 1);
- printf("OK!!!!!! (what ?)\n");
- }
- }
-
-