124 lines
2.7 KiB
C
124 lines
2.7 KiB
C
|
/* Copyright (C) 2004 David Decotigny
|
||
|
|
|
||
|
|
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_subsystem_setup(void)
|
||
|
|
{
|
||
|
|
return SOS_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define _putchar(chr) \
|
||
|
|
outb((chr), SOS_BOCHS_IOPORT)
|
||
|
|
|
||
|
|
sos_ret_t sos_bochs_putchar(char c)
|
||
|
|
{
|
||
|
|
_putchar(c);
|
||
|
|
|
||
|
|
return SOS_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
sos_ret_t sos_bochs_putstring(const char* str)
|
||
|
|
{
|
||
|
|
for ( ; str && (*str != '\0') ; str++)
|
||
|
|
_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); _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);
|
||
|
|
}
|