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001 /* Copyright (C) 2004 David Decotigny 002 003 This program is free software; you can redistribute it and/or 004 modify it under the terms of the GNU General Public License 005 as published by the Free Software Foundation; either version 2 006 of the License, or (at your option) any later version. 007 008 This program is distributed in the hope that it will be useful, 009 but WITHOUT ANY WARRANTY; without even the implied warranty of 010 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 011 GNU General Public License for more details. 012 013 You should have received a copy of the GNU General Public License 014 along with this program; if not, write to the Free Software 015 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 016 USA. 017 */ 018 #ifndef _SOS_BOCHS_H_ 019 #define _SOS_BOCHS_H_ 020 021 /** 022 * @file bochs.h 023 * 024 * If you compiled Bochs with the --enable-e9-hack, then any character 025 * printed to the 0xE9 I/O port is printed to the xterm that is 026 * running Bochs. This may appear to be a detail, but in fact, this 027 * functionnality is *VERY* precious for debugging purposes. This 028 * """driver""" handles this feature. 029 */ 030 031 #include <sos/errno.h> 032 #include <sos/types.h> 033 034 sos_ret_t sos_bochs_subsystem_setup(void); 035 036 sos_ret_t sos_bochs_putchar(char c); 037 038 sos_ret_t sos_bochs_putstring(const char* str); 039 040 /** Print the least signficant 32 (nbytes == 4), 24 (nbytes == 3), 16 041 (nbytes == 2) or 8 (nbytes == 1) bits of val in hexadecimal. */ 042 sos_ret_t sos_bochs_puthex(unsigned val, int nbytes); 043 044 /** hexdump-style pretty printing */ 045 sos_ret_t sos_bochs_hexdump(const void* addr, int nbytes); 046 047 /** 048 * Print the formatted string. Very restricted version of printf(3): 049 * 1/ can print max 255 chars, 2/ supports only %d/%i, %c, %s, %x 050 * without any support for flag charachters (eg %08x). 051 */ 052 sos_ret_t sos_bochs_printf(const char *format, /* args */...) 053 __attribute__ ((format (printf, 1, 2))); 054 055 #endif
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