Sound: CLICK

       Name: CLICK                                                   [Show more]
       Type: Subroutine
   Category: Sound
    Summary: Toggle the state of the speaker (i.e. move it in or out) to make a
             single click
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * BOMBOFF calls CLICK


.CLICK

 BIT DNOIZ              ; If bit 7 of DNOIZ is non-zero, then sound is disabled,
 BMI SOUR2              ; so jump to SOUR2 to return from the subroutine

 LDA $C030              ; Toggle the state of the speaker (i.e. move it in or
                        ; out) by reading the SPEAKER soft switch

.SOUR2

 RTS                    ; Return from the subroutine