Table 1 shows useful fields in the FRR stack header.
Field Name | Offset into FRR Stack | Description |
---|---|---|
FRRSEMP | +X'0' | Address indicating an empty stack |
FRRSLAST | +X'04' | Address of the last entry in the stack |
FRRSELEN | +X'08' | Length of each FRR entry in the stack. This field contains a constant value of X'00000020' |
FRRSCURR | +X'0C' | Address of current FRR entry. If this entry is equal to FRRSEMP at offset X'0' then the FRR stack is empty. |
FRRSRTMW | +X'28' | Indicates whether RTM1 is active on the processor associated
with this FRR. A non-zero value indicates that this FRR stack contains
valid, current data. The error type is found at offset +2 into this
field:
|
FRRSRTMA | +X'38' | Pointer to the RT1WA control block. Useful fields in the RT1WA
control block include:
|
FRRSENTS | +X'58' | Beginning for FRR stack entries. |