Apple II File Type Notes _____________________________________________________________________________ Developer Technical Support File Type: $08 Auxiliary Type: $4000 Full Name: Packed Apple II Hi-Res Graphics File Short Name: Packed Hi-Res File Written by: Matt Deatherage November 1988 Files of this type and auxiliary type contain a packed Apple II Hi-Res graphics screen. _____________________________________________________________________________ Files of type $08 and auxiliary type $4000 contain a packed Apple II Hi-Res graphics screen which has been packed with the same algorithm that PackBytes on the Apple IIGS uses. This algorithm takes the 8K graphics screen and produces a file with an indeterminate length and internal format, so no "mode byte" at offset +121 is supported as it is with other files of type $08. You can display a file of this type and auxiliary type by loading it, using UnPackBytes to decrypt the data, moving it into a high-resolution display buffer ($2000 or $4000 in the standard Apple II memory map), then simply toggling the appropriate display soft switches. File type $08 was originally defined as an Apple /// FotoFile, but now it is useful for those applications that wish to save high-resolution or double high-resolution data with a file type other than $06, which is a standard binary file. If you choose to use this type, you should remember that older applications which do not check the auxiliary type may attempt to interpret these files incorrectly.