Return specifications

For the IRXINIT initialization routine, the contents of the registers on return are:

Register 0

Contains the address of the new environment block if IRXINIT initialized a new environment, or the address of the environment block for the current non-reentrant environment that IRXINIT located.

If you called IRXINIT to initialize a new environment and IRXINIT could not initialize the environment, register 0 contains the same value as on entry. If you called IRXINIT to find an environment and IRXINIT could not locate the environment, register 0 contains a 0.

If IRXINIT returns with return code 100 or 104, register 0 contains the abend and reason code. Return codes describes the return codes and how IRXINIT returns the abend and reason codes for return codes 100 and 104.

Register 1

Address of the parameter list.

IRXINIT uses three parameters (parameters 6, 7, and 9) for output only (see Table 1). Output parameters describes the three output parameters.

Registers 2-14

Same as on entry

Register 15

Return code