compilers/linux86-0.16.17/libc/bios/bios_min.c

   1 /* Copyright (C) 1996 Robert de Bath <robert@mayday.compulink.co.uk>
   2  * This file is part of the Linux-8086 C library and is distributed
   3  * under the GNU Library General Public License.
   4  */
   5
   6 #ifdef __AS386_16__
   7 #ifdef __STANDALONE__
   8
   9 #include <bios.h>
  10
  11 #ifdef L_bios_putc
  12 bios_putc(c)
  13 {
  14 #asm
  15 #if !__FIRST_ARG_IN_AX__
  16   mov   bx,sp
  17   mov   ax,[bx+2]
  18 #endif
  19   mov   ah,#$0E
  20   mov   bx,#7
  21   int   $10
  22 #endasm
  23 }
  24 #endif
  25
  26 /****************************************************************************/
  27
  28 #ifdef L_bios_getc
  29 bios_getc()
  30 {
  31 #asm
  32   xor   ax,ax
  33   int   $16
  34 #endasm
  35 }
  36 #endif
  37
  38 /****************************************************************************/
  39
  40 #ifdef L_bios_khit
  41 bios_khit()
  42 {
  43 #asm
  44   mov   ah,#1
  45   int   $16
  46   jz    nokey
  47   cmp   ax,#0
  48   jnz   dort
  49   mov   ax,#3
  50 dort:
  51   ret
  52 nokey:
  53   xor   ax,ax
  54 #endasm
  55 }
  56 #endif
  57
  58 /****************************************************************************/
  59
  60 #endif
  61 #endif