I don't know how long I have been dealing with the topic of Copper Wait+Mask.
Then I had written myself a little program to understand the mask bits better.
The last time I used the program, I found an error.
I corrected the error and I added a graphical output to the program.
for use:
https://processing.org/download
further more explanation on this tool.
copper waits like this: dc.w $2139,$fffe it's clear
but what about this: dc.w $0001,$80fe, dc.w $8001,$00fe or dc.w $9189,$6630, etc.
With this tool it is possible to adjust all 4 parameters VP,HP,VE,HE over sliders and set the Wait/Skip Bit and the BFD Bit.
The result is in realtime on the screen and shows the copper wait positions to the current setting and in the console.
You get an imagine how the mask bit works and where the copper wait position is.
Maybe nobody programs such a tool before? By the way, it's also a nice effect to watch the result.
With processing it's easy to start. Program Download, Open the File and Run.
It's clear every copper wait needs its own time. A next programstep could be to consider a distance between to copper waits.
(not implemented yet). Also normally the last line is 313. The program shows further more, but it is easy to change and the
program shows also copper waits behind $E2 till $FF.