IAZSYMBL syntax

The IAZSYMBL macro uses the following syntax:

IAZSYMBL PARM=prmlst | (reg) | <null>

The IAZSYMBL PARM= keyword can be defined as a parameter list, register or null value (blank):

prmlst: Specifies an RX-type address of the parameter list that is passed to the IAZSYMBL service. The parameter list structure and data which are returned by the service are mapped by the IAZSYMDF macro.
(reg): Specifies that a parameter list address was loaded by the caller to the register reg.
<null>: If the PARM= keyword is omitted, the default location for the parameter list address loaded by the caller is register 1.

The return code is located in register 15. If the invocation was successful (R15=0), then the return code from the IAZSYMBL service is listed in the JSYMRETN field in the parameter list.