cleanup DMA non-auto-init DSP non-auto-init playback, forwards and backwards.
cleanup DMA non-auto-init DSP non-auto-init playback, forwards and
backwards.

joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib,joncampbell123/doslib