How do I migrate a Keil project made with MDK 4.x to MDK 5.x following CMSIS changes?

I recieved an existing project made with MDK 4.x and I'd like to use a newer toolchain but CMSIS probably changed ina way that things are missing. Can anyone assist in this migration steps? Thank you...
How do I migrate a Keil project made with MDK 4.x to MDK 5.x following CMSIS changes?

I can't find any referenced document describing the needed migration steps. Thank you!
How do I migrate a Keil project made with MDK 4.x to MDK 5.x following CMSIS changes?

I recieved an existing project made with MDK 4.x and I'd like to use a newer toolchain but CMSIS probably changed ina way that things are missing. Can anyone assist in this migration steps? Thank you...
How do I migrate a Keil project made with MDK 4.x to MDK 5.x following CMSIS changes?

I can't find any referenced document describing the needed migration steps. Thank you!
ready made c-function

hello all, i am new for keil. i want to start all my 8051 programing in C. I want to know, what actually gets converted into assembly laguage when i use ready made c-function like printf(), scanf()...