h6. [[OS SWI Calls]] h6(. » [[OS_FSControl]] h6((. » OS_FSControl 42 h2. OS_ FSControl 42 h5. (SWI &29) |_<^{width:4em}. Entry | | |<^. R0 |<^. 42 (&2A) | |<^. R1 |<^. Pointer to name of image (null terminated) | |<^. R2 |<^. Byte offset of defect start | |_<^{width:4em}. Exit | | |\2<^. All registers preserved| h4. Use The purpose of this call is to map out a defect from an image. h4. Notes To return a list of defects from an image, use [[OS_FSControl 41]]. [[OS_FSControl 57]] provides exactly the same functionality as this call, but supports 64 bits values, and thus can support larger discs. h4. See also * [[OS_FSControl]] * [[OS_FSControl 41]] * [[OS_FSControl 57]]