The instruction set can be found here, if no longer available (you are in the future) please search 8085 instruction set on the popular search engine. I used Google Search.
Going through the instruction set will really get you to understand the MPU.
For example, by going through the Arithmetic Instructions , I found out that the Memory locations can be specified by using H & L registers. This means the 8085 is a von Neumann architecture based Microprocessor.
:D Please enjoy the Assembly language.