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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [libgloss/] [mips/] [dvemon.c] - Blame information for rev 816

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Line No. Rev Author Line
1 148 jeremybenn
/* dve.c -- I/O code for the Densan DVE-R3900 board.
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 *
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 * Copyright (c) 1998, 1999 Cygnus Support
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 *
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 * The authors hereby grant permission to use, copy, modify, distribute,
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 * and license this software and its documentation for any purpose, provided
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 * that existing copyright notices are retained in all copies and that this
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 * notice is included verbatim in any distributions. No written agreement,
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 * license, or royalty fee is required for any of the authorized uses.
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 * Modifications to this software may be copyrighted by their authors
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 * and need not follow the licensing terms described here, provided that
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 * the new terms are clearly indicated on the first page of each file where
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 * they apply.
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 */
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/* Flag indicating that we are being debugged by GDB.  If set,
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   preceded each character output to the console with a ^O,
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   so that GDB will print it instead of discarding it.  */
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int output_debug = 1;
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/* Monitor "ci" function (console input) */
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typedef int (*cifunc)(int waitflag);
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#ifdef __mips64
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static cifunc ci = (cifunc) 0xffffffffbfc00010L;
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#else
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static cifunc ci = (cifunc) 0xbfc00010;
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#endif
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#define WAIT    1
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#define NOWAIT  0 
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#define NOCHAR  (-1)
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/* Monitor "co" function (console output) */
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typedef void (*cofunc)(int c);
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#ifdef __mips64
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static cofunc co = (cofunc) 0xffffffffbfc00018L;
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#else
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static cofunc co = (cofunc) 0xbfc00018;
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#endif
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/*  outbyte -- shove a byte out the serial port; used by write.c.  */
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int
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outbyte(byte)
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     unsigned char byte;
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{
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  /* Output a ^O prefix so that GDB won't discard the output.  */
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  if (output_debug)
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    co (0x0f);
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  co (byte);
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  return byte;
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}
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/* inbyte -- get a byte from the serial port; used by read.c.  */
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unsigned char
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inbyte()
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{
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  return (unsigned char) ci (WAIT);
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}
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/* Structure filled in by get_mem_info.  Only the size field is
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   actually used (by sbrk), so the others aren't even filled in.  */
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struct s_mem
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{
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  unsigned int size;
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  unsigned int icsize;
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  unsigned int dcsize;
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};
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void
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get_mem_info (mem)
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     struct s_mem *mem;
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{
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  mem->size = 0x1000000;        /* DVE-R3900 board has 16 MB of RAM */
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}

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