FYI: f+ f- f* f/ duration (@25MHz): > : measure oktimer-start ok400 0 do _pi fdup fdrop fdrop loop oktimer-stop 400 s>f f/ fs. ." sec"; ok > measure 2.6214392E-5 sec ok > : measure oktimer-start ok400 0 do _pi fdup f+ fdrop loop oktimer-stop 400 s>f f/ fs. ." sec"; ok > measure 1.12721896E-3 sec ok > : measure oktimer-start ok400 0 do _pi fdup f- fdrop loop oktimer-stop 400 s>f f/ fs. ." sec"; ok > measure 4.0108027E-3 sec ok > : measure oktimer-start ok400 0 do _pi fdup f* fdrop loop oktimer-stop 400 s>f f/ fs. ." sec"; ok > measure 4.6923761E-3 sec ok > : measure oktimer-start ok400 0 do _pi fdup f/ fdrop loop oktimer-stop 400 s>f f/ fs. ." sec"; ok > measure 1.33169138E-2 sec ok >
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