sector_per_block   80 ide.c            int sector_per_block =  BSIZE/SECTOR_SIZE;
sector_per_block   81 ide.c            int sector = b->blockno * sector_per_block;
sector_per_block   82 ide.c            int read_cmd = (sector_per_block == 1) ? IDE_CMD_READ :  IDE_CMD_RDMUL;
sector_per_block   83 ide.c            int write_cmd = (sector_per_block == 1) ? IDE_CMD_WRITE : IDE_CMD_WRMUL;
sector_per_block   85 ide.c            if (sector_per_block > 7) panic("idestart");
sector_per_block   89 ide.c            outb(0x1f2, sector_per_block);  // number of sectors