target  : (3,0x20) IStUI1
status  : emitted
from    : discovery snippet 'st_byref_UI1' (minimised)

' ---- modProbe.bas
Option Explicit

Public Sub Main()
  Dim a As Byte
End Sub

Sub P(x As Byte)
  Dim b As Byte
  b = x
  x = b
End Sub

target disasm lines:
  modProbe.Proc_401490 | 40149C    FD20 0C00             IStUI1 arg_C
