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⌂ ∞ ▽ The Sentinel on the BBC Micro

Sound: FlushSoundBuffers

       Name: FlushSoundBuffers                                       [Show more]
       Type: Subroutine
   Category: Sound
    Summary: Flush all four sound channel buffers

    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * MainGameLoop calls FlushSoundBuffers
             * ProcessPauseKeys calls FlushSoundBuffers
             * ShowGameOverScreen calls FlushSoundBuffers




.FlushSoundBuffers

 LDX #7                 \ To flush all four sound channel buffers we need to
                        \ pass the values 4, 5, 6 and 7 to the FlushBuffer
                        \ routine, so set X to loop through those values

.fbuf1

 JSR FlushBuffer        \ Call FlushBuffer to flush the buffer specified in X

 DEX                    \ Decrement the loop counter

 CPX #4                 \ Loop back until we have flushed the buffers for all
 BCS fbuf1              \ four sound channels

 RTS                    \ Return from the subroutine