bsx
struct bsx *bsx;
bsx = (struct bsx *)(img + x1);
mk1(bsx->sig, 0x29);
mk4(bsx->volid, x);
mklabel(bsx->label, o.volume_label ? o.volume_label : "NO NAME");
setstr(bsx->type, buf, sizeof(bsx->type));
x1 += sizeof(struct bsx);