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⌂ ∞ ▽ Elite on the 6502

Missions: DEBRIEF

[Commodore 64 version]

       Name: DEBRIEF                                                 [Show more]
       Type: Subroutine
   Category: Missions
    Summary: Finish mission 1
  Deep dive: The Constrictor mission

    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * DOENTRY calls DEBRIEF
             * BRIEF calls via BRPS




 Other entry points:

   BRPS                 Print the extended token in A, show the Status Mode
                        screen and return from the subroutine



.DEBRIEF

 LSR TP                 ; Clear bit 0 of TP to indicate that mission 1 is no
 ASL TP                 ; longer in progress, as we have completed it

;INC TALLY+1            ; This instruction is commented out in the original
                        ; source

 LDX #LO(50000)         ; Increase our cash reserves by the generous mission
 LDY #HI(50000)         ; reward of 5,000 CR
 JSR MCASH

 LDA #15                ; Set A = 15 so the call to BRP prints extended token 15
                        ; (the thank you message at the end of mission 1)

.BRPS

 BNE BRP                ; Jump to BRP to print the extended token in A and show
                        ; the Status Mode screen, returning from the subroutine
                        ; using a tail call (this BNE is effectively a JMP as A
                        ; is never zero)