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Line 7... |
#include "biolib.h"
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#include "biolib.h"
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#define DEFAULT_PARTITION "" /* default boot partition number */
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#define DEFAULT_PARTITION "" /* default boot partition number */
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#define LOAD_ADDR 0xC0010000
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#define LINE_SIZE 80
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#define LINE_SIZE 80
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#define SECTOR_SIZE 512
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#define SECTOR_SIZE 512
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#define NPE (SECTOR_SIZE / sizeof(PartEntry))
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#define NPE (SECTOR_SIZE / sizeof(PartEntry))
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#define DESCR_SIZE 20
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#define DESCR_SIZE 20
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Line 253... |
if ((ptr[part].type & 0x80000000) == 0) {
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if ((ptr[part].type & 0x80000000) == 0) {
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printf("partition %d is not bootable\n", part);
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printf("partition %d is not bootable\n", part);
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continue;
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continue;
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}
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}
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/* load boot sector of selected partition */
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/* load boot sector of selected partition */
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readDisk(ptr[part].start, (unsigned char *) 0xC0010000, 1);
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readDisk(ptr[part].start, (unsigned char *) LOAD_ADDR, 1);
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/* check for signature */
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/* check for signature */
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if ((*((unsigned char *) 0xC0010000 + SECTOR_SIZE - 2) != 0x55) ||
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if ((*((unsigned char *) LOAD_ADDR + SECTOR_SIZE - 2) != 0x55) ||
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(*((unsigned char *) 0xC0010000 + SECTOR_SIZE - 1) != 0xAA)) {
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(*((unsigned char *) LOAD_ADDR + SECTOR_SIZE - 1) != 0xAA)) {
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printf("boot sector of partition %d has no signature\n", part);
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printf("boot sector of partition %d has no signature\n", part);
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continue;
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continue;
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}
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}
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/* we have a valid boot sector, leave loop */
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/* we have a valid boot sector, leave loop */
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break;
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break;
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}
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}
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/* boot manager finished, now go executing loaded boot sector */
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/* boot manager finished, now go executing loaded boot sector */
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startSector = ptr[part].start;
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startSector = ptr[part].start;
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numSectors = ptr[part].size;
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numSectors = ptr[part].size;
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entryPoint = 0xC0010000;
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entryPoint = LOAD_ADDR;
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return 0;
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return 0;
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}
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}
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No newline at end of file
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No newline at end of file
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