Function getdta

sys/msdos/msdos.c:416–432

Get disk transfer area */

/* Get disk transfer area */
static char *
getdta(void)
{
    union REGS regs;
    struct SREGS sregs;
    char *ret;

    regs.h.ah = GETDTA;
    intdosx(&regs, &regs, &sregs);
#ifdef MK_FP
    ret = (char *) MK_FP(sregs.es, regs.x.bx);
#else
    FP_OFF(ret) = regs.x.bx;
    FP_SEG(ret) = sregs.es;
#endif
    return ret;
}

long
filesize_nh(char *file)