FORTRAN Reference Manual
Run-Time Diagnostic Messages
FORTRAN Reference Manual—528615-001
G-16
Trap Messages
4
The overflow bit in the environment-register, ENV.<10>, was set to 1 for one of the 
following reasons:
•
The result of a signed arithmetic operation could not be represented with the 
number of bits available for the particular data type.
•
An division operation was attempted with a zero divisor.
5
A stack overflow fault occurs if:
•
An attempt was made to execute a procedure or subprocedure whose local or 
sublocal data area extends into the upper 32K of the user data area.
•
There was not enough remaining virtual data space for an operating system 
procedure to execute.
The amount of virtual data space available is G[0] through G[32767].
Operating system procedures require approximately 350 words of user-data stack 
space to execute.
6
The new time limit specified in the latest call to SETLOOPTIMER has expired.
7
An unrecoverable read error occurred while the program was trying to bring in a page 
from virtual memory.
Arithmetic fault
Stack overflow
Process loop-timer timeout
Memory manager read error










