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⌂ ∞ ▽ Elite on the 6502

Version analysis of checksum0

This code appears in the following versions (click to see it in the source code):

Code variations between these versions are shown below.

       Name: checksum0
       Type: Variable
   Category: Copy protection
    Summary: Checksum for the entire main game code



 This byte contains a checksum for the entire main game code. It is populated
 by elite-checksum.py and is used by the encryption checks in elite-loader.asm
 (see the CHK routine in the loader for more details).



.checksum0

Code variation 1 of 1Minor and very low-impact

Tap on a block to expand it, and tap it again to revert.

Cassette
Electron
 SKIP 1                 \ This value is checked against the calculated checksum
                        \ in part 6 of the loader in elite-loader.asm

 SKIP 1                 \ This value is checked against the calculated checksum
                        \ in part 5 of the loader in elite-loader.asm (or it
                        \ would be if this weren't an unprotected version)

IF _IB_ACORNSOFT

 SKIP 1                 \ This byte appears to be unused

ENDIF