This code appears in the following versions (click to see it in the source code):
Code variations between these versions are shown below.
Type: Variable Category: Save and load
NA%+8 onwards. The size of the data block is given in NT% (which also includes the two checksum bytes that follow this block). This block is initially set up with the default commander, which can be maxed out for testing purposes by setting Q% to TRUE. The commander's name is stored at NA%, and can be up to 7 characters long (the DFS filename limit). It is terminated with a carriage return character, ASCII 13. The offset of each byte within a saved commander file is also shown as #0, #1 and so on, so the kill tally, for example, is in bytes #71 and #72 of the saved file. The related variable name from the current commander block is also shown.
The Master version contains an embedded copy of the default JAMESON commander file that can be restored over the current commander via the disc access menu.
See below for more variations related to this code.
Tap on a block to expand it, and tap it again to revert.
The Executive version contains a maxed-out default commander, with a different name: Firebud instead of Jameson (the name is presumably a seven-character riff on "Firebird", the publishers of the non-Acorn versions of Elite).
Tap on a block to expand it, and tap it again to revert.
\ NA%+8 is the start of the commander data block
\
\ This block contains the last saved commander data
\ block. As the game is played it uses an identical
\ block at location TP to store the current commander
\ state, and that block is copied here when the game is
\ saved. Conversely, when the game starts up, the block
\ here is copied to TP, which restores the last saved
\ commander when we die
\
\ The initial state of this block defines the default
\ commander. Q% can be set to TRUE to give the default
\ commander lots of credits and equipment
EQUB 0 \ TP = Mission status, #0
EQUB 20 \ QQ0 = Current system X-coordinate (Lave), #1
EQUB 173 \ QQ1 = Current system Y-coordinate (Lave), #2
EQUW &5A4A \ QQ21 = Seed s0 for system 0, galaxy 0 (Tibedied), #3-4
EQUW &0248 \ QQ21 = Seed s1 for system 0, galaxy 0 (Tibedied), #5-6
EQUW &B753 \ QQ21 = Seed s2 for system 0, galaxy 0 (Tibedied), #7-8
IF Q%
EQUD &00CA9A3B \ CASH = Amount of cash (100,000,000 Cr), #9-12
ELSE
EQUD &E8030000 \ CASH = Amount of cash (100 Cr), #9-12
ENDIF
EQUB 70 \ QQ14 = Fuel level, #13
The Executive version has bit 7 of the COK competition flags set, to indicate that this commander file has been tampered with (which it has, of course).
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EQUB 0 \ GCNT = Galaxy number, 0-7, #15
Code variation 7 of 9
See variation 4 above for details.
Tap on a block to expand it, and tap it again to revert.
EQUW 0 \ These bytes appear to be unused (they were originally \ used for up/down lasers, but they were dropped), \ #20-21 EQUB 22 + (15 AND Q%) \ CRGO = Cargo capacity, #22 EQUB 0 \ QQ20+0 = Amount of food in cargo hold, #23 EQUB 0 \ QQ20+1 = Amount of textiles in cargo hold, #24 EQUB 0 \ QQ20+2 = Amount of radioactives in cargo hold, #25 EQUB 0 \ QQ20+3 = Amount of slaves in cargo hold, #26 EQUB 0 \ QQ20+4 = Amount of liquor/Wines in cargo hold, #27 EQUB 0 \ QQ20+5 = Amount of luxuries in cargo hold, #28 EQUB 0 \ QQ20+6 = Amount of narcotics in cargo hold, #29 EQUB 0 \ QQ20+7 = Amount of computers in cargo hold, #30 EQUB 0 \ QQ20+8 = Amount of machinery in cargo hold, #31 EQUB 0 \ QQ20+9 = Amount of alloys in cargo hold, #32 EQUB 0 \ QQ20+10 = Amount of firearms in cargo hold, #33 EQUB 0 \ QQ20+11 = Amount of furs in cargo hold, #34 EQUB 0 \ QQ20+12 = Amount of minerals in cargo hold, #35 EQUB 0 \ QQ20+13 = Amount of gold in cargo hold, #36 EQUB 0 \ QQ20+14 = Amount of platinum in cargo hold, #37 EQUB 0 \ QQ20+15 = Amount of gem-stones in cargo hold, #38 EQUB 0 \ QQ20+16 = Amount of alien items in cargo hold, #39 EQUB Q% \ ECM = E.C.M. system, #40 EQUB Q% \ BST = Fuel scoops ("barrel status"), #41 EQUB Q% AND 127 \ BOMB = Energy bomb, #42 EQUB Q% AND 1 \ ENGY = Energy/shield level, #43 EQUB Q% \ DKCMP = Docking computer, #44 EQUB Q% \ GHYP = Galactic hyperdrive, #45 EQUB Q% \ ESCP = Escape pod, #46 EQUD 0 \ These four bytes appear to be unused, #47-50 EQUB 3 + (Q% AND 1) \ NOMSL = Number of missiles, #51 EQUB 0 \ FIST = Legal status ("fugitive/innocent status"), #52 EQUB 16 \ AVL+0 = Market availability of food, #53 EQUB 15 \ AVL+1 = Market availability of textiles, #54 EQUB 17 \ AVL+2 = Market availability of radioactives, #55 EQUB 0 \ AVL+3 = Market availability of slaves, #56 EQUB 3 \ AVL+4 = Market availability of liquor/Wines, #57 EQUB 28 \ AVL+5 = Market availability of luxuries, #58 EQUB 14 \ AVL+6 = Market availability of narcotics, #59 EQUB 0 \ AVL+7 = Market availability of computers, #60 EQUB 0 \ AVL+8 = Market availability of machinery, #61 EQUB 10 \ AVL+9 = Market availability of alloys, #62 EQUB 0 \ AVL+10 = Market availability of firearms, #63 EQUB 17 \ AVL+11 = Market availability of furs, #64 EQUB 58 \ AVL+12 = Market availability of minerals, #65 EQUB 7 \ AVL+13 = Market availability of gold, #66 EQUB 9 \ AVL+14 = Market availability of platinum, #67 EQUB 8 \ AVL+15 = Market availability of gem-stones, #68 EQUB 0 \ AVL+16 = Market availability of alien items, #69 EQUB 0 \ QQ26 = Random byte that changes for each visit to a \ system, for randomising market prices, #70
Code variation 8 of 9
See variation 4 above for details.
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EQUB 128 \ SVC = Save count, #73
Code variation 9 of 9
See variation 4 above for details.
This variation is blank in the Cassette, Disc (flight), 6502 Second Processor and Electron versions.
\.CHK2 \ This label is commented out in the original source EQUB &AA \ The CHK2 checksum value for the default commander \.CHK \ This label is commented out in the original source EQUB &03 \ The CHK checksum value for the default commander \.CHK3 \ These instructions are commented out in the original \EQUB CH3X% \ source SKIP 12 \ These bytes appear to be unused, though the first byte \ in this block is included in the commander file (it \ has no effect, as it's the third checksum byte from \ the Commodore 64 version, which isn't used in the \ Master version) .NAEND% SKIP 4 \ These bytes appear to be unused