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⌂ ∞ ▽ Elite on the 6502

Version analysis of K%

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

Code variations between these versions are shown below.

       Name: K%
       Type: Workspace

Code variation 1 of 5A variation in the comments only

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Cassette, Electron
Flight, Docked
Master
6502SP
    Address: &0900 to &0AAF

    Address: &0900 to &0ABB

    Address: &0400 to &05BB

    Address: &8200 to &84E3 (&8500 to &87E3 in the Executive version)

   Category: Workspaces

Code variation 2 of 5A variation in the comments only

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Cassette, Flight, Docked, Master, Electron
6502SP
    Summary: Ship data blocks and ship line heaps

    Summary: Ship data blocks

  Deep dive: Ship data blocks
             The local bubble of universe

Code variation 3 of 5A variation in the comments only

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Cassette, Flight, Docked
6502SP, Master
Electron
 Contains ship data for all the ships, planets, suns and space stations in our
 local bubble of universe, along with their corresponding ship line heaps.

 Contains ship data for all the ships, planets, suns and space stations in our
 local bubble of universe.

 Contains ship data for all the ships, planets and space stations in our local
 bubble of universe, along with their corresponding ship line heaps.

Code variation 4 of 5A variation in the comments only

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Cassette, Electron
Flight, Docked
Master
6502SP
 The blocks are pointed to by the lookup table at location UNIV. The first 432
 bytes of the K% workspace hold ship data on up to 12 ships, with 36 (NI%)
 bytes per ship, and the ship line heap grows downwards from WP at the end of
 the K% workspace.

 The blocks are pointed to by the lookup table at location UNIV. The first 444
 bytes of the K% workspace hold ship data on up to 12 ships, with 37 (NI%)
 bytes per ship, and the ship line heap grows downwards from WP at the end of
 the K% workspace.

 The blocks are pointed to by the lookup table at location UNIV. The first 444
 bytes of the K% workspace hold ship data on up to 12 ships, with 37 (NI%)
 bytes per ship.

 The blocks are pointed to by the lookup table at location UNIV. The first 720
 bytes of the K% workspace hold ship data on up to 20 ships, with 37 (NI%)
 bytes per ship.

Code variation 5 of 5Related to the 6502SP version

The Executive version has a different memory map to the other 6502SP versions, with the K% workspace at &8500 instead of &8200.

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Cassette, Flight, Docked, Electron
Master
6502SP
 ORG &0900

 ORG &0400

IF _SNG45 OR _SOURCE_DISC

 ORG &8200

ELIF _EXECUTIVE

 ORG &8500

ENDIF

.K%

 SKIP NOSH * NI%        \ Ship data blocks and ship line heap

 PRINT "K% workspace from ", ~K%, "to ", ~P%-1, "inclusive"