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⌂ ∞ ▽ Elite on the 6502

Loader: SCRAM

[Elite-A, Docked]

       Name: SCRAM                                                   [Show more]
       Type: Subroutine
   Category: Loader
    Summary: Set the save_lock variable and break handler

    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * DOBEGIN calls SCRAM
             * DOENTRY calls SCRAM
             * INBAY calls SCRAM




 Arguments:

   A                    Set the save_lock flag as follows:

                          * 0 = this is a new game, so there are no unsaved
                                changes in the commander file

                          * &FF = we just docked, so there are unsaved changes
                                  in the commander file



.SCRAM

                        \ --- Mod: Code removed for Elite-A: ------------------>

\JSR DEEOR              \ Decrypt the main docked code between &1300 and &5FFF
\
\JSR RES2               \ Reset a number of flight variables and workspaces
\
\JMP TT170              \ Jump to TT170 to start the game

                        \ --- And replaced by: -------------------------------->

 STA save_lock          \ Set the save_lock variable to the value in A (which
                        \ will be either 0 or &FF)

                        \ Fall through into BRKBK to set the standard BRKV
                        \ handler for the game and return from the subroutine

                        \ --- End of replacement ------------------------------>