Получение даты и времены и вывод на экран

--------B-1A02-------------------------------
INT 1A - TIME - GET REAL-TIME CLOCK TIME (AT,XT286,PS)
    AH = 02h
    CF clear to avoid bug (see below)
Return: CF clear if successful
        CH = hour (BCD)
        CL = minutes (BCD)
        DH = seconds (BCD)
        DL = daylight savings flag (00h standard time, 01h daylight time)
    CF set on error (i.e. clock not running or in middle of update)
Notes:  this function is also supported by the Sperry PC, which predates the
      IBM AT; the data is returned in binary rather than BCD on the Sperry,
      and DL is always 00h
    MS-DOS/PC DOS IO.SYS/IBMBIO.COM use this function to detect if a RTC
      is preset by checking if the returned values are non-zero. If they
      are, this function is called one more time, before it is assumed
      that no RTC is present.
BUG:    some BIOSes leave CF unchanged if successful, so CF should be cleared
      before calling this function
SeeAlso: AH=00h,AH=03h,AH=04h,INT 21/AH=2Ch
--------B-1A04-------------------------------
INT 1A - TIME - GET REAL-TIME CLOCK DATE (AT,XT286,PS)
    AH = 04h
    CF clear to avoid bug (see below)
Return: CF clear if successful
        CH = century (BCD)
        CL = year (BCD)
        DH = month (BCD)
        DL = day (BCD)
    CF set on error
Notes:  DR-DOS 7.02 (after 1998-06-06) and 7.03 hook this function and correct
      the century to 20xx if the reported year is 1900..1980 to auto-fix
      ROM-BIOSes which are not Year 2000 compliant. On a running system,
      it would also correct the rollover bug from 1999/12/31 to 2000/01/01.
      The latter can be turned off using the new CONFIG.SYS YEAR2000=ON|OFF
      command, as hooking INT 1Ah can sometimes cause compatibility
      problems with 3rd party software, e.g. NCR/Symbios/LSI Logic-based
      SDMS PCI SCSI drivers (including all OEM drivers like from Asus,
      Noma, etc.), some Flash-BIOS software like Asus PFLASH, Quarterdeck's
      QEMM Stealth and Quick-Boot features.
    Using EXCLUDESTEALTHINT=1A, though, will allow QEMM's Stealth features
      to coexist with the DR-DOS Year 2000 rollover support.
    Actually, the Y2K-fix is provided since OpenDOS 7.02 BETA 2+
      (1997-08-13), but although these older releases corrected the
      ROM-BIOS, they didn't pass all Y2K-test suites and had some obscure
      and inexplicable PCI problems due to the fact that the original
      INT 1Ah was called via indirect means.  Newer releases, however, use
      a dynamically fixed-up direct jump to avoid these problems.
    PC DOS 7 plus Y2K fixes and PC DOS 2000 provide similar, though not
      identical means, which cannot be switched off.
    MS-DOS and older issues of PC DOS do not provide any such means, and
      thus requires extra Y2K-TSRs to be loaded when run on buggy BIOSes.
BUG:    some BIOSes, such as the 1998/07/25 system ROM in the Compaq Deskpro
      EP/SB, leave CF unchanged if successful, so CF should be cleared
      before calling this function
SeeAlso: AH=02h,AH=04h"Sperry",AH=05h,INT 21/AH=2Ah,INT 4B/AH=02h"TI"

--------V-100E-------------------------------
INT 10 - VIDEO - TELETYPE OUTPUT
        AH = 0Eh
        AL = character to write
        BH = page number
        BL = foreground color (graphics modes only)
Return: nothing
Desc:   display a character on the screen, advancing the cursor and scrolling
          the screen as necessary
Notes:  characters 07h (BEL), 08h (BS), 0Ah (LF), and 0Dh (CR) are interpreted
          and do the expected things
        IBM PC ROMs dated 1981/4/24 and 1981/10/19 require that BH be the same
          as the current active page
BUG:    if the write causes the screen to scroll, BP is destroyed by BIOSes
          for which AH=06h destroys BP
SeeAlso: AH=02h,AH=06h,AH=0Ah

--------V-100F-------------------------------
INT 10 - VIDEO - GET CURRENT VIDEO MODE
        AH = 0Fh
Return: AH = number of character columns
        AL = display mode (see #00010 at AH=00h)
        BH = active page (see AH=05h)
Notes:  if mode was set with bit 7 set ("no blanking"), the returned mode will
          also have bit 7 set
        EGA, VGA, and UltraVision return either AL=03h (color) or AL=07h
          (monochrome) in all extended-row text modes
        HP 200LX returns AL=07h (monochrome) if mode was set to AL=21h
          and always 80 resp. 40 columns in all text modes regardless of
          current zoom setting (see AH=D0h)
        when using a Hercules Graphics Card, additional checks are necessary:
            mode 05h: if WORD 0040h:0063h is 03B4h, may be in graphics page 1
                  (as set by DOSSHELL and other Microsoft software)
            mode 06h: if WORD 0040h:0063h is 03B4h, may be in graphics page 0
                  (as set by DOSSHELL and other Microsoft software)
            mode 07h: if BYTE 0040h:0065h bit 1 is set, Hercules card is in
                  graphics mode, with bit 7 indicating the page (mode set by
                  Hercules driver for Borland Turbo C)
        the Tandy 2000 BIOS is only documented as returning AL, not AH or BH
SeeAlso: AH=00h,AH=05h,AX=10F2h,AX=1130h,AX=CD04h,MEM 0040h:004Ah