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File Data

Posted by walker7, 05 February 2018 · 220 views

assembly computer 8-bit file data bytes ascii

This is how the data is stored in files on this type of computer.
 
NOTE:  This is a work in progress.  I will be updating this post as I think of stuff to put on here.
 
Bytes $20-$7F represent the standard ASCII character set.  Character $7F represents the cursor symbol.
 
Bytes $00-$1F are control codes.
$00 - ROM Section Header
$01 - Palette
$02 - Graphics
$03 - Mappings
$04 -
$05 -
$06 -
$07 -
$08 - Set Tab Width
$09 - Tab
$0A - Line Feed
$0B - Comment Tab
$0C -
$0D - Carriage Return (same as $0A)
$0E -
$0F -
$10 -
$11 -
$12 -
$13 -
$14 -
$15 -
$16 -
$17 -
$18 -
$19 -
$1A -
$1B -
$1C -
$1D - Change Label Line Color
$1E - Change Label Line Toggle
$1F - Toggle Show/Hide Labels
 
Characters $80-$FF are more control codes.
 
 
When the file is saved, it is compressed using LZSS.






August 2018

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