[Coco] Direct page register question

[Salvador Garcia]

My quest to learn 6809asm continues and now I am looking at the DP register.

For example, if I am loading the A register like the following:

LDA $85

Will this automatically use the DP register?

If I have modified the DP register before the above line and forget to reset it, and I want the byte at address $0085 will the above line fail if the DP is anything but zero?

Thanks always! Salvador