Hey,

I'm trying to to InlineASM to speed up my app. I have a sub called toX which is called a few thousand times per second (CAD-Like app).

The function is as follows:

Function toX(ByRef xIn As Double) As Double
toX = (xIn - ggImageLeft) * mgZoom
End Function

My idea was to translate this to ASM, but I have no clue how to use my global vars ggImageLeft and mgZoom. The rest of the code should be something like this:

Function asmToY(ByVal yIn As Double) As Double
'#ASM_START
' mov eax, DWORD PTR _yIn$[esp+4]
' fld DWORD PTR _modCommon+128
' fsubr QWORD PTR [eax]
' fmul DWORD PTR _modCommon+148
' fstp QWORD PTR _asmToY$[esp+8]
'#ASM_END
End Function

(This is copied from the log files that Inline ASM creates).

Any thoughts on this?