FORTRAN Reference Manual

Run-Time Diagnostic Messages
FORTRAN Reference Manual—528615-001
G-15
Trap Messages
System errors can occur in programs that specify ENV COMMON on the following
statements and utility routines:
BACKSPACE FORTRAN_SETMODE_ READ
CHECKPOINT FORTRAN_SPOOL_OPEN_ REWIND
CLOSE INQUIRE START BACKUP
ENDFILE OPEN WRITE
FORTRAN_CONTROL_ POSITION
Trap Messages
The run-time library reports the messages in this subsection if a trap occurs. The
runtime library terminates your program.
The run-time treats trap 4, arithmetic fault, as a program logic error, not a trap.
1
The run-time trap processing function was called with an unknown trap number.
2
An address was specified that was not within either the virtual code area or the virtual
data area allocated to the process.
3
An attempt was made to:
•
Execute a code word that is not an instruction.
•
Execute a privileged instruction by a nonprivileged process.
•
Reference an illegal extended address.
Unknown trap
Illegal address reference
Instruction failure