You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

119 lines
2.7 KiB

/* Copyright (C) 2004 David Decotigny
Copyright (C) 1999 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA.
*/
#include <hwcore/ioports.h>
#include <sos/klibc.h>
#include "bochs.h"
/* This is a special hack that is only useful when running the
operating system under the Bochs emulator. */
#define SOS_BOCHS_IOPORT 0xe9
sos_ret_t sos_bochs_setup(void)
{
return SOS_OK;
}
#define sos_bochs_putchar(chr) \
outb((chr), SOS_BOCHS_IOPORT)
sos_ret_t sos_bochs_putstring(const char* str)
{
for ( ; str && (*str != '\0') ; str++)
sos_bochs_putchar(*str);
return SOS_OK;
}
sos_ret_t sos_bochs_puthex(unsigned val, int nbytes)
{
unsigned c;
#define BOCHS_PRTHEX(q) \
({ unsigned char r; if ((q) >= 10) r='a'+(q)-10; \
else r='0'+(q); sos_bochs_putchar(r); })
switch (nbytes)
{
case 4:
c = (val >> 24) & 0xff;
BOCHS_PRTHEX((c >> 4)&0xf);
BOCHS_PRTHEX(c&0xf);
case 3:
c = (val >> 16) & 0xff;
BOCHS_PRTHEX((c >> 4)&0xf);
BOCHS_PRTHEX(c&0xf);
case 2:
c = (val >> 8) & 0xff;
BOCHS_PRTHEX((c >> 4)&0xf);
BOCHS_PRTHEX(c&0xf);
case 1:
c = val & 0xff;
BOCHS_PRTHEX((c >> 4)&0xf);
BOCHS_PRTHEX(c&0xf);
}
return SOS_OK;
}
sos_ret_t sos_bochs_hexdump(const void* addr, int nbytes)
{
int offs;
for (offs = 0 ; offs < nbytes ; offs++)
{
const unsigned char *c;
if ((offs % 16) == 0)
{
sos_bochs_putstring("0x");
sos_bochs_puthex(offs, 4);
}
if ((offs % 8) == 0)
sos_bochs_putstring(" ");
c = (const unsigned char*)(addr + offs);
sos_bochs_puthex(*c, 1);
sos_bochs_putstring(" ");
if (((offs + 1) % 16) == 0)
sos_bochs_putstring("\n");
}
if (offs % 16)
sos_bochs_putstring("\n");
return SOS_OK;
}
sos_ret_t sos_bochs_printf(const char *format, /* args */...)
{
char buff[256];
va_list ap;
va_start(ap, format);
vsnprintf(buff, sizeof(buff), format, ap);
va_end(ap);
return sos_bochs_putstring(buff);
}