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glibc  2.9
console.c
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00001 /* Copyright (C) 1994, 1997 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
00004      On-Line Applications Research Corporation.
00005 
00006    The GNU C Library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Lesser General Public
00008    License as published by the Free Software Foundation; either
00009    version 2.1 of the License, or (at your option) any later version.
00010 
00011    The GNU C Library is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014    Lesser General Public License for more details.
00015 
00016    You should have received a copy of the GNU Lesser General Public
00017    License along with the GNU C Library; if not, write to the Free
00018    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00019    02111-1307 USA.  */
00020 
00021 #include <standalone.h>
00022 #include "i960ca.h"
00023 
00024 /* Console IO routines for a NINDY960 board. */
00025 
00026 /*
00027  *  NINDY_IO( ... )
00028  *
00029  *  Interface to NINDY.
00030  */
00031 
00032 #define NINDY_INPUT   0
00033 #define NINDY_OUTPUT  1
00034 
00035 void ___NINDY_IO_WRAPPER( void )  /* never called */
00036 {
00037    asm volatile ( "       .text" );
00038    asm volatile ( "       .align 4" );
00039    asm volatile ( "       .globl _NINDY_IO" );
00040    asm volatile ( "_NINDY_IO:" );
00041    asm volatile ( "        calls   0       /* call console routines */" );
00042    asm volatile ( "        ret" );
00043 }
00044 
00045 /***** !!!! HOW DO I EXFUN NINDY_IO? !!!! *****/
00046 
00047 /* _Console_Putc
00048 
00049 This routine transmits a character using NINDY.  */
00050 
00051 int
00052 _Console_Putc (ch)
00053      char ch;
00054 {
00055   NINDY_IO( NINDY_OUTPUT, ch );
00056   return( 0 );
00057 }
00058 
00059 /* _Console_Getc
00060 
00061 This routine reads a character from NINDY and returns it. */
00062 
00063 int
00064 _Console_Getc (poll)
00065      int poll;
00066 {
00067   char ch;
00068 
00069   if ( poll ) {
00070     /* I don't know how to poll with NINDY */
00071     return -1;
00072   } else {
00073     NINDY_IO( NINDY_INPUT, &ch );
00074     return ch;
00075   }
00076 }