How two combine two integers into a fixdt

I am trying to make a custom simulink block that does type conversion for a custom fixdt

The block has 2 inputs (dataA and dataB, both int32) and 1 output (myType, fixdt(1,32,24))

We treat dataA and dataB as two 32-bit binary values and parse out their data differently depending on the type specified. In the case I'm interested in, their values are represented as follows:

         __type__ _______fractional_______
dataA = '00000000|000000000000000000000000'
         ___________integer______________
dataB = '00000000000000000000000000000000'
where type is 8-bit, fractional is 24-bit, and integer is 32-bit.

I want to take the fractional and integer components and combine them into my fixdt type. Is there a way that I can typecast this in simulink?

I can get the fractional components out of dataA using a bitslice, but I can't figure out how to combine the fractional and integer into a fixdt.