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/*
* Copyright (c) 1995-1994 The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software is hereby
* granted provided that (1) source code retains these copyright, permission,
* and disclaimer notices, and (2) redistributions including binaries
* reproduce the notices in supporting documentation, and (3) all advertising
* materials mentioning features or use of this software display the following
* acknowledgement: ``This product includes software developed by the
* Computer Systems Laboratory at the University of Utah.''
*
* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* CSL requests users of this software to return to csl-dist@cs.utah.edu any
* improvements that they make and grant CSL redistribution rights.
*
* Author: Bryan Ford, University of Utah CSL
*/
#include <mach/machine/eflags.h>
#include "real.h"
#ifndef ENABLE_IMMCONSOLE
#include <rc.h>
int putchar(int c)
{
if (c == '\n')
putchar('\r');
{
#if RCLINE >= 0
static int serial_inited = 0;
if (! serial_inited) {
init_serial();
serial_inited = 1;
}
serial_putc(c);
#else
struct real_call_data rcd;
rcd.eax = 0x0e00 | (c & 0xff);
rcd.ebx = 0x07;
rcd.flags = 0;
real_int(0x10, &rcd);
#endif
}
return 0;
}
#else ENABLE_IMMCONSOLE
void
putchar(unsigned char c)
{
static int ofs = -1;
if (ofs < 0)
{
ofs = 0;
putchar('\n');
}
if (c == '\r')
{
ofs = 0;
}
else if (c == '\n')
{
bcopy(0xb8000+80*2, 0xb8000, 80*2*24);
bzero(0xb8000+80*2*24, 80*2);
ofs = 0;
}
else
{
volatile unsigned char *p;
if (ofs >= 80)
{
putchar('\r');
putchar('\n');
}
p = (void*)0xb8000 + 80*2*24 + ofs*2;
p[0] = c;
p[1] = 0x0f;
ofs++;
}
}
#endif ENABLE_IMMCONSOLE
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