value stored in memory, accesed with cheat engine at run time gives unknown value such as fmul dword ptr [edx+4F]-Collection of common programming errors

i was just playing around with some C++, and i wanted to inspect the memory adress that stored my variables value, i used cheat engine to inspect the value at runtime, and what i got at the adress was:

opcode(fmul): fmul dword ptr [edx+4F]

the next 2 adresses in memory are

opcode(add): [esi+67],ah
opcode(add): cl
enter code here

what does this mean, and how is it translated to the end value (which is a string (fgfg)) ?