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001 /* Copyright (C) 2004 David Decotigny 001 /* Copyright (C) 2004 David Decotigny 002 002 003 This program is free software; you can redi 003 This program is free software; you can redistribute it and/or 004 modify it under the terms of the GNU Genera 004 modify it under the terms of the GNU General Public License 005 as published by the Free Software Foundatio 005 as published by the Free Software Foundation; either version 2 006 of the License, or (at your option) any lat 006 of the License, or (at your option) any later version. 007 007 008 This program is distributed in the hope tha 008 This program is distributed in the hope that it will be useful, 009 but WITHOUT ANY WARRANTY; without even the 009 but WITHOUT ANY WARRANTY; without even the implied warranty of 010 MERCHANTABILITY or FITNESS FOR A PARTICULAR 010 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 011 GNU General Public License for more details 011 GNU General Public License for more details. 012 012 013 You should have received a copy of the GNU 013 You should have received a copy of the GNU General Public License 014 along with this program; if not, write to t 014 along with this program; if not, write to the Free Software 015 Foundation, Inc., 59 Temple Place - Suite 3 015 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 016 USA. 016 USA. 017 */ 017 */ 018 #include <hwcore/ioports.h> 018 #include <hwcore/ioports.h> 019 #include <sos/klibc.h> 019 #include <sos/klibc.h> 020 020 021 #include "bochs.h" 021 #include "bochs.h" 022 022 023 /* This is a special hack that is only useful 023 /* This is a special hack that is only useful when running the 024 operating system under the Bochs emulator. 024 operating system under the Bochs emulator. */ 025 #define SOS_BOCHS_IOPORT 0xe9 025 #define SOS_BOCHS_IOPORT 0xe9 026 026 027 sos_ret_t sos_bochs_setup(void) 027 sos_ret_t sos_bochs_setup(void) 028 { 028 { 029 return SOS_OK; 029 return SOS_OK; 030 } 030 } 031 031 032 #define _putchar(chr) \ 032 #define _putchar(chr) \ 033 outb((chr), SOS_BOCHS_IOPORT) 033 outb((chr), SOS_BOCHS_IOPORT) 034 034 035 sos_ret_t sos_bochs_putchar(char c) 035 sos_ret_t sos_bochs_putchar(char c) 036 { 036 { 037 _putchar(c); 037 _putchar(c); 038 038 039 return SOS_OK; 039 return SOS_OK; 040 } 040 } 041 041 042 sos_ret_t sos_bochs_putstring(const char* str) 042 sos_ret_t sos_bochs_putstring(const char* str) 043 { 043 { 044 for ( ; str && (*str != '\0') ; str++) 044 for ( ; str && (*str != '\0') ; str++) 045 _putchar(*str); 045 _putchar(*str); 046 046 047 return SOS_OK; 047 return SOS_OK; 048 } 048 } 049 049 050 sos_ret_t sos_bochs_puthex(unsigned val, int n 050 sos_ret_t sos_bochs_puthex(unsigned val, int nbytes) 051 { 051 { 052 unsigned c; 052 unsigned c; 053 053 054 #define BOCHS_PRTHEX(q) \ 054 #define BOCHS_PRTHEX(q) \ 055 ({ unsigned char r; if ((q) >= 10) r='a'+(q) 055 ({ unsigned char r; if ((q) >= 10) r='a'+(q)-10; \ 056 else r='0'+(q); _putchar(r); }) 056 else r='0'+(q); _putchar(r); }) 057 057 058 switch (nbytes) 058 switch (nbytes) 059 { 059 { 060 case 4: 060 case 4: 061 c = (val >> 24) & 0xff; 061 c = (val >> 24) & 0xff; 062 BOCHS_PRTHEX((c >> 4)&0xf); 062 BOCHS_PRTHEX((c >> 4)&0xf); 063 BOCHS_PRTHEX(c&0xf); 063 BOCHS_PRTHEX(c&0xf); 064 case 3: 064 case 3: 065 c = (val >> 16) & 0xff; 065 c = (val >> 16) & 0xff; 066 BOCHS_PRTHEX((c >> 4)&0xf); 066 BOCHS_PRTHEX((c >> 4)&0xf); 067 BOCHS_PRTHEX(c&0xf); 067 BOCHS_PRTHEX(c&0xf); 068 case 2: 068 case 2: 069 c = (val >> 8) & 0xff; 069 c = (val >> 8) & 0xff; 070 BOCHS_PRTHEX((c >> 4)&0xf); 070 BOCHS_PRTHEX((c >> 4)&0xf); 071 BOCHS_PRTHEX(c&0xf); 071 BOCHS_PRTHEX(c&0xf); 072 case 1: 072 case 1: 073 c = val & 0xff; 073 c = val & 0xff; 074 BOCHS_PRTHEX((c >> 4)&0xf); 074 BOCHS_PRTHEX((c >> 4)&0xf); 075 BOCHS_PRTHEX(c&0xf); 075 BOCHS_PRTHEX(c&0xf); 076 } 076 } 077 077 078 return SOS_OK; 078 return SOS_OK; 079 } 079 } 080 080 081 081 082 sos_ret_t sos_bochs_hexdump(const void* addr, 082 sos_ret_t sos_bochs_hexdump(const void* addr, int nbytes) 083 { 083 { 084 int offs; 084 int offs; 085 for (offs = 0 ; offs < nbytes ; offs++) 085 for (offs = 0 ; offs < nbytes ; offs++) 086 { 086 { 087 const unsigned char *c; 087 const unsigned char *c; 088 088 089 if ((offs % 16) == 0) 089 if ((offs % 16) == 0) 090 { 090 { 091 sos_bochs_putstring("0x"); 091 sos_bochs_putstring("0x"); 092 sos_bochs_puthex(offs, 4); 092 sos_bochs_puthex(offs, 4); 093 } 093 } 094 094 095 if ((offs % 8) == 0) 095 if ((offs % 8) == 0) 096 sos_bochs_putstring(" "); 096 sos_bochs_putstring(" "); 097 097 098 c = (const unsigned char*)(addr + offs); 098 c = (const unsigned char*)(addr + offs); 099 sos_bochs_puthex(*c, 1); 099 sos_bochs_puthex(*c, 1); 100 sos_bochs_putstring(" "); 100 sos_bochs_putstring(" "); 101 101 102 if (((offs + 1) % 16) == 0) 102 if (((offs + 1) % 16) == 0) 103 sos_bochs_putstring("\n"); 103 sos_bochs_putstring("\n"); 104 } 104 } 105 105 106 if (offs % 16) 106 if (offs % 16) 107 sos_bochs_putstring("\n"); 107 sos_bochs_putstring("\n"); 108 108 109 return SOS_OK; 109 return SOS_OK; 110 } 110 } 111 111 112 112 113 sos_ret_t sos_bochs_printf(const char *format, 113 sos_ret_t sos_bochs_printf(const char *format, /* args */...) 114 { 114 { 115 char buff[256]; 115 char buff[256]; 116 va_list ap; 116 va_list ap; 117 117 118 va_start(ap, format); 118 va_start(ap, format); 119 vsnprintf(buff, sizeof(buff), format, ap); 119 vsnprintf(buff, sizeof(buff), format, ap); 120 va_end(ap); 120 va_end(ap); 121 121 122 return sos_bochs_putstring(buff); 122 return sos_bochs_putstring(buff); 123 } 123 }
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