I am trying to right a microcode for a MIC-1 for floating point addition, substraction, and multiplication

To do this I must assign suitable op-codes for the instructions and then write the microprogram to implement them. My program must be able to run on the Mic-1 hardware and must implement the floating point operations for the IEEE floating point standard for 32 bits.

I've been trying to do the microcode for about two weeks now , but have not been able to make it work...

I need your help guys, please!!!!

Thanks