What's the interrupt latency and/or overhead when using DT-Ints?

[pedja089]

As far as I know, if you have more than one INT_Handler, then it will take more time to do overhead checking on what label to jump, even if only one interrupt occurred. And further down the list it will take more time to jump to that label.
ASM int header is faster "only" for save and restore time needed. Which is not small at all.
From Re-EnterPBP-18 file, we can see that it need maximum 34 word to be saved and restored(can be less, depending on conditional assembling). Variables are grouped, so only one banksel instruction are needed.
To save or restore 34 words(68 bytes) we need 136 instructions(one to load to W and one to load to F). I didn't check if PBP uses MOVFF, so maybe there is room for improvement.
So worst case: just to save and restore PBP variables takes 280 instructions(272 movX instructions, +2 call, +2 returns, +2 banksel)
Henrik's test program didn't have any IF then so didn't have any of T variables used, that is why it was faster.