target  : (1,0xF3) FnSgnUI1
status  : emitted
from    : discovery snippet 'un_I2_sgn' (minimised)

' ---- modProbe.bas
Option Explicit

Public Sub Main()
  Dim a As Integer, c As Integer
  c = Sgn(a)
End Sub

target disasm lines:
  modProbe.Sub Main | 40144F    FBF3                  FnSgnUI1
