apps/edit/main.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #define         ESC     1
  21
  22 void *memcpy (void *dst_ptr, const void *src_ptr, unsigned count)
  23 {
  24         void *ret_val = dst_ptr;
  25         const char *src = (const char *)src_ptr;
  26         char *dst = (char *)dst_ptr;
  27
  28         /* copy up */
  29         for(; count != 0; count--)
  30                 *dst++ = *src++;
  31         return ret_val;
  32 }
  33
  34 void putch (char c)
  35 {
  36         asm volatile ("movl $4, %%eax;"
  37              "movl %0, %%ebx;"
  38              "int $0x80;" :: "g" (c));
  39 }
  40
  41 void sleep (int s)
  42 {
  43         asm volatile ("movl $3, %%eax;"
  44              "movl %0, %%ebx;"
  45              "int $0x80;" :: "g" (s));
  46 }
  47
  48 void settextcolor (int t, int f)
  49 {
  50         asm volatile ("movl $5, %%eax;"
  51              "movl %0, %%ebx;"
  52              "movl %1, %%ecx;"
  53              "int $0x80;" :: "g" (t), "g" (f));
  54 }
  55
  56 void gotoxy (unsigned x, unsigned y)
  57 {
  58         asm volatile ("movl $7, %%eax;"
  59              "movl %0, %%ebx;"
  60              "movl %1, %%ecx;"
  61              "int $0x80;" :: "g" (x), "g" (y));
  62 }
  63
  64 unsigned char getkey ()
  65 {
  66         asm volatile ("movl $7, %eax;");
  67         asm volatile ("int $0x80;");
  68
  69         unsigned short *memptr = (unsigned short *) 0x9000;
  70         unsigned short *where = memptr;
  71
  72         return *where;
  73 }
  74
  75 unsigned char getch ()
  76 {
  77         asm volatile ("movl $2, %eax;");
  78         asm volatile ("int $0x80;");
  79         //asm volatile ("movl %%edx, %0;" : "=g" (c) :: "%edx");
  80
  81         unsigned short *memptr = (unsigned short *) 0x9000;
  82         unsigned short *where = memptr;
  83
  84         return *where;
  85 }
  86
  87 void cls ()
  88 {
  89         asm volatile ("movl $6, %eax;"
  90              "int $0x80;");
  91 }
  92
  93 void putstr (char *str)
  94 {
  95         //int i;
  96         //for (i = 0; i != 4; i++)
  97         putch (str[0]);
  98         putch (str[1]);
  99         putch (str[2]);
 100         putch (str[3]);
 101 }
 102
 103 unsigned key_pressed (int keycode)
 104 {
 105         int scancode = getkey ();
 106
 107         if (scancode == keycode)
 108                 return 1;
 109
 110         if (scancode == keycode+128)
 111                 return 2;
 112         else
 113                 return 0;
 114 }
 115
 116 int main () // like main in a normal C program
 117 {
 118         //acls ();
 119         //k_clear_screen();
 120
 121         cls ();
 122
 123         settextcolor (7, 1);
 124
 125         putch (201);
 126
 127                 putch (205);
 128                 putch (205);
 129                 putch (205);
 130                 putch (205);
 131                 putch (205);
 132                 putch (205);
 133                 putch (205);
 134                 putch (205);
 135                 putch (205);
 136                 putch (205);
 137                 putch (205);
 138                 putch (205);
 139                 putch (205);
 140                 putch (205);
 141                 putch (205);
 142                 putch (205);
 143                 putch (205);
 144                 putch (205);
 145                 putch (205);
 146                 putch (205);
 147                 putch (205);
 148                 putch (205);
 149                 putch (205);
 150                 putch (205);
 151                 putch (205);
 152                 putch (205);
 153                 putch (205);
 154                 putch (205);
 155                 putch (205);
 156                 putch (205);
 157                 putch (205);
 158                 putch (205);
 159                 putch (205);
 160                 putch (205);
 161                 putch (205);
 162                 putch (205);
 163                 putch (205);
 164                 putch (205);
 165                 putch (205);
 166                 putch (205);
 167                 putch (205);
 168                 putch (205);
 169                 putch (205);
 170                 putch (205);
 171                 putch (205);
 172                 putch (205);
 173                 putch (205);
 174                 putch (205);
 175                 putch (205);
 176                 putch (205);
 177                 putch (205);
 178                 putch (205);
 179                 putch (205);
 180                 putch (205);
 181                 putch (205);
 182                 putch (205);
 183                 putch (205);
 184                 putch (205);
 185                 putch (205);
 186                 putch (205);
 187                 putch (205);
 188                 putch (205);
 189                 putch (205);
 190                 putch (205);
 191                 putch (205);
 192                 putch (205);
 193                 putch (205);
 194                 putch (205);
 195                 putch (205);
 196                 putch (205);
 197                 putch (205);
 198                 putch (205);
 199                 putch (205);
 200                 putch (205);
 201                 putch (205);
 202                 putch (205);
 203                 putch (205);
 204                 putch (205);
 205
 206         putch (187);
 207
 208
 209         putch (186);
 210         settextcolor (15, 1);
 211                 putch (' ');
 212                 putch (' ');
 213                 putch (' ');
 214                 putch (' ');
 215                 putch (' ');
 216                 putch (' ');
 217                 putch (' ');
 218                 putch (' ');
 219                 putch (' ');
 220                 putch (' ');
 221                 putch (' ');
 222                 putch (' ');
 223                 putch (' ');
 224                 putch (' ');
 225                 putch (' ');
 226                 putch (' ');
 227                 putch (' ');
 228                 putch ('T');
 229                 putch ('e');
 230                 putch ('x');
 231                 putch ('t');
 232                 putch (' ');
 233                 putch ('e');
 234                 putch ('d');
 235                 putch ('i');
 236                 putch ('t');
 237                 putch ('o');
 238                 putch ('r');
 239                 putch (' ');
 240                 putch ('v');
 241                 putch ('0');
 242                 putch ('.');
 243                 putch ('0');
 244                 putch ('.');
 245                 putch ('1');
 246                 putch (' ');
 247                 putch (' ');
 248                 putch (' ');
 249                 putch (' ');
 250                 putch (' ');
 251                 putch (' ');
 252                 putch (' ');
 253                 putch (' ');
 254                 putch (' ');
 255                 putch (' ');
 256                 putch (' ');
 257                 putch (' ');
 258                 putch (' ');
 259                 putch (' ');
 260                 putch (' ');
 261                 putch (' ');
 262                 putch (' ');
 263                 putch (' ');
 264                 putch (' ');
 265                 putch (' ');
 266                 putch (' ');
 267                 putch (' ');
 268                 putch (' ');
 269                 putch (' ');
 270                 putch (' ');
 271                 putch (' ');
 272                 putch (' ');
 273                 putch (' ');
 274                 putch (' ');
 275                 putch (' ');
 276                 putch (' ');
 277                 putch (' ');
 278                 putch (' ');
 279                 putch (' ');
 280                 putch (' ');
 281                 putch (' ');
 282                 putch (' ');
 283                 putch (' ');
 284                 putch (' ');
 285                 putch (' ');
 286                 putch (' ');
 287                 putch (' ');
 288                 putch (' ');
 289         settextcolor (7, 1);
 290         putch (186);
 291
 292
 293         putch (200);
 294
 295                 putch (205);
 296                 putch (205);
 297                 putch (205);
 298                 putch (205);
 299                 putch (205);
 300                 putch (205);
 301                 putch (205);
 302                 putch (205);
 303                 putch (205);
 304                 putch (205);
 305                 putch (205);
 306                 putch (205);
 307                 putch (205);
 308                 putch (205);
 309                 putch (205);
 310                 putch (205);
 311                 putch (205);
 312                 putch (205);
 313                 putch (205);
 314                 putch (205);
 315                 putch (205);
 316                 putch (205);
 317                 putch (205);
 318                 putch (205);
 319                 putch (205);
 320                 putch (205);
 321                 putch (205);
 322                 putch (205);
 323                 putch (205);
 324                 putch (205);
 325                 putch (205);
 326                 putch (205);
 327                 putch (205);
 328                 putch (205);
 329                 putch (205);
 330                 putch (205);
 331                 putch (205);
 332                 putch (205);
 333                 putch (205);
 334                 putch (205);
 335                 putch (205);
 336                 putch (205);
 337                 putch (205);
 338                 putch (205);
 339                 putch (205);
 340                 putch (205);
 341                 putch (205);
 342                 putch (205);
 343                 putch (205);
 344                 putch (205);
 345                 putch (205);
 346                 putch (205);
 347                 putch (205);
 348                 putch (205);
 349                 putch (205);
 350                 putch (205);
 351                 putch (205);
 352                 putch (205);
 353                 putch (205);
 354                 putch (205);
 355                 putch (205);
 356                 putch (205);
 357                 putch (205);
 358                 putch (205);
 359                 putch (205);
 360                 putch (205);
 361                 putch (205);
 362                 putch (205);
 363                 putch (205);
 364                 putch (205);
 365                 putch (205);
 366                 putch (205);
 367                 putch (205);
 368                 putch (205);
 369                 putch (205);
 370                 putch (205);
 371                 putch (205);
 372                 putch (205);
 373
 374         putch (188);
 375
 376         settextcolor (10, 0);
 377
 378         unsigned char key = 0;
 379         while (1) {
 380                 if (key_pressed (ESC))
 381                         return 1;
 382
 383                 key = getch ();
 384
 385                 putch (key);
 386         }
 387
 388         return 0;
 389 }