@o_lampe
Yes, you are right, my g-code is wrong, i only tried to show idea that for continues rotation distance does not matter, you need only speed and direction.
seem the most correct way will use new M code for that purpose for example:
Mxxx Xnnn; start to rotate axis X with speed xxx (non blocking command!)
Mxxx A-600; rotate axis A (setup A as continuesly rotation in config) with speed 600 counter-clockwise

Hi David. Thank your for good job!

Can someone did continues rotation?
I expect something like this:
M584 X1 R1; set X axis as continues rotational
//on working program
G1 X F100 ; rotate X continuesly with speed 100 or best way to use some new M code for rotation
G1 Y10 F200;
...
G1 X F300; after Y moved to 10 and some other things rotate X with speed 300
G1 Y-10 F200;
G1 X F0; after Y moved to -10 stop X rotation

or may be somebody can suggest working solution, then I need continues rotation on pulling tape or similar.
One solution I see to use analog output connected to external drive with analog speed control like Spindle.
Thank you