#include 
 
int main(void)
{
  int systemInfo;
  int floppyCount;
  int mem, memSize, memSizePost;
  int videoMode;
  int serialPorts;
  int paralelPorts;
 
  /* Call INT 11h ( Equipment Installed ) */
  asm int 11h;
  asm mov systemInfo, ax;
 
  /* Call INT 12h ( Memory Available ) */
  asm int 12h;
  asm mov memSizePost, ax;
 
  printf("********** SYSTEM INFO ***********\n");
  printf("Floppy drive(s): %s ", (systemInfo & 0x0001) ? "yes" : "no");
 
  if((systemInfo & 0x0001))
  {
    switch((systemInfo & 0x00C0))
    {
      case 0:
      {
		floppyCount = 1;
		break;
      }
      case 64:
      {
		floppyCount = 2;
		break;
      }
      case 128:
      {
		floppyCount = 3;
		break;
      }
      case 192:
      {
		floppyCount = 4;
		break;
      }
    }
 
    printf("(%d)\n", floppyCount);
  }
  else
  {
    printf("\n");
  }
 
 
  printf("Math co-processor: %s\n", (systemInfo & 0x0002) ? "yes" : "no");
 
  mem = (systemInfo & 0x000C);
 
  switch(mem)
  {
    case 0:
    {
      memSize = 16;
      break;
    }    
    case 4:
    {
      memSize = 32;
      break;
    }
    case 8:
    {
      memSize = 48;
      break;
    }
    case 12:
    {
      memSize = 256;
      break;
    }
  }
  printf("On-board memory: %d K%s\n", memSize, (memSize >= 256) ? "+" : " ");
  printf("Memory reported by BIOS POST: %dK\n", memSizePost);
 
  videoMode = (systemInfo & 0x0030);
  switch(videoMode)
  {
    case 0:
    {
      printf("Video mode: EGA, VGA or PGA\n");
      break;
    }
    case 16:
    {
      printf("Video mode: CGA, 40 x 25\n");
      break;
    }
    case 32:
    {
      printf("Video mode: CGA, 80 x 25\n");
      break;
    }
    case 48:
    {
      printf("Video mode: monochrome, 80 x 25\n");
      break;
    }
  }
 
  printf("DMA support: %s\n", (systemInfo & 0x0100) == 0 ? "yes" : "no");
  printf("Game adapter: %s\n", (systemInfo & 0x1000) == 0 ? "no" : "yes");
 
  switch((systemInfo & 0x0E00))
  {
    case 0:
    {
      serialPorts = 0;
      break;
    }
    case 512:
    {
      serialPorts = 1;
      break;
    }
    case 1024:
    {
      serialPorts = 2;
      break;
    }
    case 1536:
    {
      serialPorts = 3;
      break;
    }
    case 2048:
    {
      serialPorts = 4;
      break;
    }
  }
  printf("Serial ports: %d\n", serialPorts);
 
  switch((systemInfo & 0xC000))
  {
    case 0:
    {
      paralelPorts = 0;
      break;
    }
    case 16384:
    {
      paralelPorts = 1;
      break;
    }
    case 32768:
    {
      paralelPorts = 2;
      break;
    }
    case 49152:
    {
      paralelPorts = 3;
      break;
    }
  }
  printf("Paralel ports: %d\n", paralelPorts);
 
  return 0;
}

#include int main(void) { int systemInfo; int floppyCount; int mem, memSize, memSizePost; int videoMode; int serialPorts; int paralelPorts; /* Call INT 11h ( Equipment Installed ) */ asm int 11h; asm mov systemInfo, ax; /* Call INT 12h ( Memory Available ) */ asm int 12h; asm mov memSizePost, ax; printf("********** SYSTEM INFO ***********\n"); printf("Floppy drive(s): %s ", (systemInfo & 0x0001) ? "yes" : "no"); if((systemInfo & 0x0001)) { switch((systemInfo & 0x00C0)) { case 0: { floppyCount = 1; break; } case 64: { floppyCount = 2; break; } case 128: { floppyCount = 3; break; } case 192: { floppyCount = 4; break; } } printf("(%d)\n", floppyCount); } else { printf("\n"); } printf("Math co-processor: %s\n", (systemInfo & 0x0002) ? "yes" : "no"); mem = (systemInfo & 0x000C); switch(mem) { case 0: { memSize = 16; break; } case 4: { memSize = 32; break; } case 8: { memSize = 48; break; } case 12: { memSize = 256; break; } } printf("On-board memory: %d K%s\n", memSize, (memSize >= 256) ? "+" : " "); printf("Memory reported by BIOS POST: %dK\n", memSizePost); videoMode = (systemInfo & 0x0030); switch(videoMode) { case 0: { printf("Video mode: EGA, VGA or PGA\n"); break; } case 16: { printf("Video mode: CGA, 40 x 25\n"); break; } case 32: { printf("Video mode: CGA, 80 x 25\n"); break; } case 48: { printf("Video mode: monochrome, 80 x 25\n"); break; } } printf("DMA support: %s\n", (systemInfo & 0x0100) == 0 ? "yes" : "no"); printf("Game adapter: %s\n", (systemInfo & 0x1000) == 0 ? "no" : "yes"); switch((systemInfo & 0x0E00)) { case 0: { serialPorts = 0; break; } case 512: { serialPorts = 1; break; } case 1024: { serialPorts = 2; break; } case 1536: { serialPorts = 3; break; } case 2048: { serialPorts = 4; break; } } printf("Serial ports: %d\n", serialPorts); switch((systemInfo & 0xC000)) { case 0: { paralelPorts = 0; break; } case 16384: { paralelPorts = 1; break; } case 32768: { paralelPorts = 2; break; } case 49152: { paralelPorts = 3; break; } } printf("Paralel ports: %d\n", paralelPorts); return 0; }