Sorry, but I have to revisit one more time...
I got sidetracked by the normalization problem, but my original
worry about ctrl7 going to zero at max is still valid.

On Tue, Jan 08, 2019 at 07:00:08AM +0000, Victor Lazzarini wrote:
> ... The table opcode will never overflow, it either limits or wraps around.

Obviously if this was true for ctrl7 also it couldn't snap back to 0
at the top end.

So I took a look at the source, and here's the problem:

In midiops2.c:ictrl7:

          value = *(ftp->ftable + (int32)(value*ftp->flen)); /* no interpolation */
 
I haven;'t dug into table allocation, but I assume 'ftlen' would
be 128 for a 128-point table (and for 129 too?).  So multiplying
the original value -- scaled it seems 0..1.0 -- by ftlen is going to
overflow into the guard point!

A ticket is appropriate, I guess.

	-- Pete --
 

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