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019 #include <hwcore/ioports.h>
020 #include <sos/klibc.h>
021
022 #include "bochs.h"
023
024
025
026 #define SOS_BOCHS_IOPORT 0xe9
027
028 sos_ret_t sos_bochs_setup(void)
029 {
030 return SOS_OK;
031 }
032
033
034 #define sos_bochs_putchar(chr) \
035 outb((chr), SOS_BOCHS_IOPORT)
036
037 sos_ret_t sos_bochs_putstring(const char* str)
038 {
039 for ( ; str && (*str != '\0') ; str++)
040 sos_bochs_putchar(*str);
041
042 return SOS_OK;
043 }
044
045
046 sos_ret_t sos_bochs_puthex(unsigned val, int nbytes)
047 {
048 unsigned c;
049
050 #define BOCHS_PRTHEX(q) \
051 ({ unsigned char r; if ((q) >= 10) r='a'+(q)-10; \
052 else r='0'+(q); sos_bochs_putchar(r); })
053
054 switch (nbytes)
055 {
056 case 4:
057 c = (val >> 24) & 0xff;
058 BOCHS_PRTHEX((c >> 4)&0xf);
059 BOCHS_PRTHEX(c&0xf);
060 case 3:
061 c = (val >> 16) & 0xff;
062 BOCHS_PRTHEX((c >> 4)&0xf);
063 BOCHS_PRTHEX(c&0xf);
064 case 2:
065 c = (val >> 8) & 0xff;
066 BOCHS_PRTHEX((c >> 4)&0xf);
067 BOCHS_PRTHEX(c&0xf);
068 case 1:
069 c = val & 0xff;
070 BOCHS_PRTHEX((c >> 4)&0xf);
071 BOCHS_PRTHEX(c&0xf);
072 }
073
074 return SOS_OK;
075 }
076
077
078 sos_ret_t sos_bochs_hexdump(const void* addr, int nbytes)
079 {
080 int offs;
081 for (offs = 0 ; offs < nbytes ; offs++)
082 {
083 const unsigned char *c;
084
085 if ((offs % 16) == 0)
086 {
087 sos_bochs_putstring("0x");
088 sos_bochs_puthex(offs, 4);
089 }
090
091 if ((offs % 8) == 0)
092 sos_bochs_putstring(" ");
093
094 c = (const unsigned char*)(addr + offs);
095 sos_bochs_puthex(*c, 1);
096 sos_bochs_putstring(" ");
097
098 if (((offs + 1) % 16) == 0)
099 sos_bochs_putstring("\n");
100 }
101
102 if (offs % 16)
103 sos_bochs_putstring("\n");
104
105 return SOS_OK;
106 }
107
108
109 sos_ret_t sos_bochs_printf(const char *format, ...)
110 {
111 char buff[256];
112 va_list ap;
113
114 va_start(ap, format);
115 vsnprintf(buff, sizeof(buff), format, ap);
116 va_end(ap);
117
118 return sos_bochs_putstring(buff);
119 }