target  : (2,0x43) FnCSngStr
status  : emitted
from    : discovery snippet 'cast_Str_CSng' (minimised)

' ---- modProbe.bas
Option Explicit

Public Sub Main()
  Dim a As String, c As Single
  c = CSng(a)
End Sub

target disasm lines:
  modProbe.Sub Main | 40144F    FC43                  FnCSngStr
