debug.h

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// See the end of this file for license information.

#ifndef TORSION_DEBUG_H
#define TORSION_DEBUG_H

#include "asm.h"

const unsigned BOCHS_DEBUG_PORT = 0xe9;

inline void
dprint(char* str) {
  for ( ; *str != '\0'; str++)
    outb(*str, BOCHS_DEBUG_PORT);
  outb(0xa, BOCHS_DEBUG_PORT);
}

inline void
dprint(unsigned number) {
  char buffer[9];
          // start at the end of 8-char
          // string and go backwards
  for (int index = 7; index >= 0; index--) {
    unsigned char one_digit = number & 0xf;
    if (one_digit < 10)
      one_digit += 0x30;    // convert a number to ascii (0-9)
    else
      one_digit += 0x57;    // convert a letter to ascii (a-f)
    buffer[index] = one_digit;

    number >>= 4;
  }
  buffer[8] = '\0';

  dprint(buffer);
}

inline void
dprint(void* pointer) {
  dprint((unsigned)pointer);
}

inline void
hexdump(void* address, Size bytes) {
  unsigned count = (bytes + 3) / 4;
  unsigned* typed_address = (unsigned*)address;
  for (unsigned i = 0; i < count; ++i, ++typed_address) {
    dprint(*typed_address);
  }
}

#endif

/* Torsion Operating System, Copyright (C) 2000-2004 Dan Helfman
 *
 * 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 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 (in the COPYING file).
 * 
 * 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.,
 * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

---

Torsion Operating System, Copyright (C) 2000-2004 Dan Helfman