h6. [[OS SWI Calls]] h6(. » [[OS_ReadSysInfo]] h6((. » OS_ReadSysInfo 5 h2. OS_ReadSysInfo 5 h5. (SWI &58) |_<^{width:4em}. Entry | | |<^. R0 |<^. 5 | |_<^{width:4em}. Exit | | |<^. R0 |<^. Bottom 32 bits of machine unique ID (raw) | |<^. R1 |<^. Top 32 bits of machine's unique ID (raw) | h4. Use The purpose of this call is to read the machine's unique ID raw. h4. Notes When reading the machine ID, it is recommended that programs first check with [[OS_ReadSysInfo 12]] to see if an extended machine ID is available. [[OS_ReadSysInfo 2]] can also be used to read the old-style 64 bit machine ID. h4. See also * [[OS_ReadSysInfo]] * [[OS_ReadSysInfo 2]] * [[OS_ReadSysInfo 12]]