Usually you would setup your files and bitmaps before starting the Blitz mode:
init arrays,
allocate the bitmaps,
load the shapes, palettes etc.
createdisplay ......
vwait50 ;wait a second to let the hard drive come to rest
BLITZ
displaybitmap .....
init arrays,
allocate the bitmaps,
load the shapes, palettes etc.
createdisplay ......
vwait50 ;wait a second to let the hard drive come to rest
BLITZ
displaybitmap .....
Amiga. Just to let ya know....