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calling FPMUL

Hello all,

I would like to know how i can call ?C?FPMUL?A subroutine in my assembely code.
I can see in my disassembled window that some calls are made to ?C?FPMUL?A....If I write my own assembly program and if I want to make use of this ?C?FPMUL?A sub routine how should I make a call to this subroutine...In which memory does this ?C?FPMUL?A resides?

this is how it looks in the disassembled window

0x00000BA8  E28D0000  ADD       R0,R13,#0x00000000
0x00000BAC  E5900000  LDR       R0,[R0]
0x00000BB0  EB00015E  BL        ?C?FCAST?A(0x00001130)
0x00000BB4  E1A01000  MOV       R1,R0
0x00000BB8  E59F00B8  LDR       R0,[PC,#0x00B8]
0x00000BBC  EB00008B  BL        ?C?FPMUL?A(0x00000DF0)
0x00000BC0  E1A02000  MOV       R2,R0

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