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//Includes somewhere here
//KBDUS defined here

u32int getch_progress=0;
char new_key;

/* Handles the keyboard interrupt */
void keyboard_handler(registers_t *r)
{
    unsigned char scancode;

    //Read from port 0x60 for getting input
    scancode = inportb(0x60);

//Check if key has been released or pressed
    if (scancode & 0x80)
    {
        //unused for now
    }
    else
    {
//Here, we set getch_process to 1
        getch_progress=1;
        new_key=kbdus[scancode]);
    }
}

/* Installs the keyboard handler into IRQ1 */
void init_keyboard()
{
    register_interrupt_handler(IRQ1, keyboard_handler);
}

char getch() 
{ 
   getch_progress=0;
   if(getch_progress==0) 
      while(getch_progress==0);	  
   kprintf("getch_progress=%u;\n",ex);
   getch_progress = 0;    
   return new_key; 
}

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//Check if key has been released or pressed
    if (scancode < 128) 
    {
        //unused for now
    }
    else 
....

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unsigned char k;
k=getch();
kprintf("%s",n);

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#define SizeOfBuffer 1024
char KeyBuffer[SizeOfBuffer];
volatile int BufferStart=0, BufferEnd=0;

#define NextNum(n) (((n)+1)%SizeOfBuffer)

void keyboard_handler(registers_t *r) 
{ 
    unsigned char scancode; 

    //Read from port 0x60 for getting input 
    scancode = inportb(0x60); 

//Check if key has been released or pressed 
    if (scancode & 0x80) 
    { 
        //unused for now 
    } 
    else //Lets add it to our buffer as pressed
    { 
        if (NextNum(BufferEnd) == BufferStart) //We have a full buffer?!
           return; //Can't add it, lets just bail
        KeyBuffer[BufferEnd] = kbdus[scancode]);
        BufferEnd = NextNum(BufferEnd);
    }
} 

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char kbhit(void)
{
   return (BufferStart != BufferEnd);
}

char getch(void)
{
   char Ret;
   while (BufferStart == BufferEnd); //Do nothing while waiting
   Ret = KeyBuffer[BufferStart];
   BufferStart = NextNum(BufferStart);
   return Ret;
}