If you want make better code like this, you
have to buy or loan a book called
  
 ADVANCED PROGRAMMER'S GUIDE TO SuperVGAs : George Sutty And Steve Blair
 The Advanced Programmer's Graphic Library Volume II

There is a lots of information about programming
in assembler with VGA/SVGA, also there is a little
code how to select different SVGA modes

And lots of more...

PS. If you know how to read and link a LBM-picture to
    your own program and also how to link MUSIC in
    to programs or you have a little example program (In pascal,
    also assembler and Borland C is OK).
    (if you have a program, i'd like to have print of it
    or swap little mail with me )

 ****************************************************************************
    My address is now :
                          Juha Kunnari
                          Opintie 2 a 4
                          83100 Liperi
                          Finland

 ****************************************************************************

  If you're a member of somekind of group and your group doesn't have a mail 
  swapper contact me and i shall begin swapping if i have a time (not in next 
  summer, bcoz im working in somewhere not sure where)... Contact and lets 
  talk more then... (-8+  Cope