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⌂ ∞ Elite on the BBC Micro and NES

Start and end: ShowStartScreen

[NES version, Bank 0]

       Name: ShowStartScreen                                         [Show more]
       Type: Subroutine
   Category: Start and end
    Summary: Show the start screen and start the game

    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * ResetToStartScreen calls ShowStartScreen




.ShowStartScreen

 LDA #$FF               ; Set soundVibrato = $FF $80 $1B $34 to set the seeds
 STA soundVibrato       ; for the randomised vibrato that's applied to sound
 LDA #$80               ; effects
 STA soundVibrato+1
 LDA #$1B
 STA soundVibrato+2
 LDA #$34
 STA soundVibrato+3

 JSR ResetMusic         ; Reset the current tune to 0 and stop the music

 JSR JAMESON_b6         ; Copy the default "JAMESON" commander to the buffer at
                        ; currentSlot (though this isn't actually used anywhere)

 JSR ResetOptions       ; Reset the game options to their default values

 LDA #1                 ; Set the font style to print in the normal font
 STA fontStyle

 LDX #$FF               ; Set the old view type in QQ11a to $FF (Segue screen
 STX QQ11a              ; from Title screen to Demo)

 TXS                    ; Set the stack pointer to $01FF, which is the standard
                        ; location for the 6502 stack, so this instruction
                        ; effectively resets the stack

 JSR RESET              ; Call RESET to initialise most of the game variables

 JSR ChooseLanguage_b6  ; Show the Start screen and process the language choice

                        ; Fall through into DEATH2 to show the title screen and
                        ; start the game