a question about the float

hi i met a question about the format that the float stored in ram?

when i write (float)31.0 to the ram the address is 0x104800;in the debug model

i can see the memory (0x104800 00

0x104801 00

0x104802 f8

0x104803 41)

so i want to know the format of the float stored inthe memory,

and how i can equal the float 31.0 to the (41 f8 00 00)

best regars!

btw how to find the information about the costume instruction?

thanks!

wbqyy