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⌂ ∞ ▽ Elite on the 6502

Sound: BEEP

[Apple II version]

       Name: BEEP                                                    [Show more]
       Type: Subroutine
   Category: Sound
    Summary: Make a short, high beep
  Deep dive: Sound effects in Apple II Elite

    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * Main flight loop (Part 11 of 16) calls BEEP
             * R5 calls BEEP




.BEEP

 LDY #30                ; Set the length of the loop below to 30 clicks, so we
                        ; make a total of 31 clicks in the following

 LDX #110               ; Set the period of the sound at 110 for a high beep

                        ; Fall through into SOBEEP to make a short, high beep