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