Hi,
I am in the process of converting several routines to AMODE=31 RMODE=ANY.
One of them references the address of the first problem program save area
found in the TCB.
The field is defined as follows:
TCBFSA DS 0A - ADDRESS OF THE FIRST PROBLEM PROGRAM SAVE AREA
DS FL1 - FIRST BYTE OF TCBFSA
@G381P9A
TCBFSAB DS AL3 - ADDRESS OF THE FIRST PROBLEM PROGRAM SAVE AREA
My question: what is the status of the first byte? It does not seem to
contain flag bits as is often the case. On the other hand, defining the
field TCBFSAB seems to imply that the address is a 24-bit address. So in
AMODE=31 can the first problem program save area (which is provided by the
system to the top-level program) be above the line? Should I relate to all
four bytes as the address of the FSA? Or could the first byte contain
garbage?
Thanks,
Steff
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