Performance monitor exit routine parameter list

When the entry code in register 0 is X'04', VTAM® passes the following parameter list to the performance monitor exit routine in register 1:

Table 1. Performance monitor exit parameter list for entry code X'04'
Dec (Hex) offset	Size (Bytes)	Description
0 (0)	4	Address of an 8-byte user field
4 (4)	8	Reserved
12 (C)	4	Address of the performance data parameter list (see Performance data parameter list)

When the entry code in register 0 is X'10', X'18', or X'20', VTAM passes the following parameter list to the performance monitor exit in register 1:

Table 2. Performance monitor exit parameter list for entry codes X'10', X'18', and X'20'
Dec (Hex) offset	Size (Bytes)	Description
0 (0)	4	Address of an 8-byte user field
4 (4)	8	Reserved
12 (C)	4	Address of parameter string

For an activation, deactivation, or replacement function, offset X'C' points to a parameter string that was specified as a value for the PARMS operand on the MODIFY EXIT command. This parameter string is in the form of a 2-byte length field followed by the actual data.