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C/C++ Source or Header  |  1979-12-31  |  256 b   |  13 lines
  1. /* getkey.c:    single, unbuffered keypress via BIOS */
  2.  
  3. #include <dos.h>
  4.  
  5. char getkey()
  6. {
  7.     struct reg regs;
  8.  
  9.     regs.r_ax = 0;
  10.     intcall(®s,®s,0x16);
  11.     return((char) regs.r_ax & 0x00ff);  /* answer in AL */
  12. }
  13.