sys/arch/mvme68k/stand/libbug/inchr.c

   1 /*      $NetBSD: inchr.c,v 1.3 2005/12/11 12:18:19 christos Exp $       */
   2
   3 /*
   4  * bug routines -- assumes that the necessary sections of memory
   5  * are preserved.
   6  */
   7 #include <sys/types.h>
   8 #include <machine/prom.h>
   9
  10 #include <lib/libsa/stand.h>
  11 #include "libbug.h"
  12
  13 /* returns 0 if no characters ready to read */
  14 int
  15 getchar(void)
  16 {
  17         int ret;
  18
  19         MVMEPROM_NOARG();
  20         MVMEPROM_CALL(MVMEPROM_INCHR);
  21         MVMEPROM_RETURN_BYTE(ret);
  22 }