Sub second time delay RPL HP48GX/HP50g

[Graan]

Since I did not find any sub second time delay command (or maybe there is?) Im figuring out whats the best/easiest/most exact way to do a delay (HP48GX or HP50g):

1) Using TICKS in a loop adding a number and checking when TICKS = TICKS + value
2) Using TIME in a loop adding a number and checking when TIME = TIME + value
3) A FOR NEXT loop just counting.

Or other ways?

/Andreas