amd64/bareMetalOS-0.5.2/pure64.boot0/kernel_c/kernel64.c

   1 /* 64-bit C example kernel for Pure64 */
   2 /* Written by Ian Seyler (www.returninfinity.com) */
   3
   4
   5 unsigned int print(char *message, unsigned int line);
   6
   7 int main()
   8 {
   9         print("Welcome to your 64-bit OS written in C (Thanks to Pure64!).", 12);
  10         while(1)
  11         {
  12                 // infinite loop of doing nothing
  13         }
  14         return (0);
  15 };
  16
  17
  18
  19 /* Kernel functions */
  20
  21 unsigned int print(char *message, unsigned int line)
  22 {
  23         char *vidmem = (char *) 0xb8000;
  24         unsigned int i= 0;
  25
  26         i=(line*80*2);
  27
  28         while(*message!=0) // 24h
  29         {
  30                 vidmem[i]= *message;
  31                 *message++;
  32                 i++;
  33                 vidmem[i]= 0x7;
  34                 i++;
  35         };
  36
  37         return(1);
  38 };