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Elite on the BBC Micro

Big Code File source [Electron version]

ELECTRON ELITE BIG CODE FILE SOURCE Electron Elite was written by Ian Bell and David Braben and is copyright Acornsoft 1984 The code on this site has been reconstructed from a disassembly of the version released on Ian Bell's personal website at http://www.elitehomepage.org/ The commentary is copyright Mark Moxon, and any misunderstandings or mistakes in the documentation are entirely my fault The terminology and notations used in this commentary are explained at https://www.bbcelite.com/about_site/terminology_used_in_this_commentary.html The deep dive articles referred to in this commentary can be found at https://www.bbcelite.com/deep_dives
This source file produces the following binary files: * ELITECO.bin after reading in the following files: * ELTA.bin * ELTB.bin * ELTC.bin * ELTD.bin * ELTE.bin * ELTF.bin * ELTG.bin * SHIPS.bin * WORDS9.bin
INCLUDE "1-source-files/main-sources/elite-header.h.asm" GUARD &5800 \ Guard against assembling over screen memory
Configuration variables
CODE% = &0D00 \ CODE% is set to the location that the main game code \ gets moved to after it is loaded LOAD% = &2000 \ The load address of the main game code file
Load the compiled binaries to create the Big Code File
ORG CODE% .elitea PRINT "elitea = ", ~P% INCBIN "3-assembled-output/ELTA.bin" .eliteb PRINT "eliteb = ", ~P% INCBIN "3-assembled-output/ELTB.bin" .elitec PRINT "elitec = ", ~P% INCBIN "3-assembled-output/ELTC.bin" .elited PRINT "elited = ", ~P% INCBIN "3-assembled-output/ELTD.bin" .elitee PRINT "elitee = ", ~P% INCBIN "3-assembled-output/ELTE.bin" .elitef PRINT "elitef = ", ~P% INCBIN "3-assembled-output/ELTF.bin" .eliteg PRINT "eliteg = ", ~P% INCBIN "3-assembled-output/ELTG.bin" .checksum0 PRINT "checksum0 = ", ~P% SKIP 1 \ We skip this byte so we can insert the checksum later \ in elite-checksum.py .ships PRINT "ships = ", ~P% INCBIN "3-assembled-output/SHIPS.bin" .end
Save ELITECO.unprot.bin
PRINT "P% = ", ~P% PRINT "S.ELITECO ", ~CODE%, " ", ~P%, " ", ~LOAD%, " ", ~LOAD% SAVE "3-assembled-output/ELITECO.unprot.bin", CODE%, P%, LOAD%