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⌂ ∞ ▽ Elite on the 6502

Version analysis of SLSP

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

Code variations between these versions are shown below.

.SLSP

 SKIP 2                 \ The address of the bottom of the ship line heap
                        \
                        \ The ship line heap is a descending block of memory

Code variation 1 of 1A variation in the comments only

This variation is blank in the Master version.

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Cassette, Flight, Docked, Electron
6502SP
                        \ that starts at WP and descends down to SLSP. It can be

                        \ that starts at D% and descends down to SLSP. It can be

                        \ extended downwards by the NWSHP routine when adding
                        \ new ships (and their associated ship line heaps), in
                        \ which case SLSP is lowered to provide more heap space,
                        \ assuming there is enough free memory to do so