Interruptions during
processing of error
organization blocks
After the system program calls the appropriate organization block, the
user program in that block is processed.
If another error occurs while that organization block is being
processed, the program is interrupted at the next operation boundary
and the appropriate organization block is called, just as in cyclic
program processing.
The system program processes organization blocks in the order in
which they are called.
Note
You can nest a maximum of five error organization blocks. With
more than 5 errors, the CPU goes into the HARD STOP mode
because of ISTACK overflow.
Error Handling Using Organization Blocks
CPU 948 Programming Guide
5 - 22 C79000-G8576-C848-04
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