Now the inverse way! (sending Midi, receiving DMX)

I learned from Kathy's DMX receiver code a technick to receive the DMX data, I think it is a bit dirty way to do, but I already tested and works.
He/she sets the serial port to 9bit mode, when receive a byte, look if the 9th bit is clear and byte is zero, if yes, should be a break!
As DMX have 2 stop bits, the first will be the 9th, the second just the normal serial stop bit.
The rest is just easy.

Midi is 8bit.

Now I think.
Working with 8bit:
Midi should be no problem.
DMX I will lost the 9th bit which is used to detect the break.
Will RI be set after receiving a break? (I think it will be)
Can I look RxD state just after RI is set? (If yes I think the problem is solved)

Working with 9bit:
Midi will have one more bit.
If I set the 9th bit it will be taken as the stop bit? (I think yes, and I think it will work, I will just lose 1 bit time every byte, should be no problem at all)
DMX should be ok.

Correct me if I'm wrong.

Thanks.