Example

The following example, coded in C/370™ uses CSRL16J to transfer control to a C/370 program. The target routine executes in the mode and with the register contents specified by the calling program in the L16J parameter list.

This example performs the following operations:

Fills in L16J parameter list with PSW and execution mode data.
Calls an assembler routine to obtain the current register contents of registers 0 through 13 and copies them to the L16J parameter list.
Defines the contents of registers 14 and 15 for the target routine.
Issues setjmp to allow return from the target routine.
Invokes the C/370 function L16JPrg through CSRL16J.
CSRL16J issues longjmp to return to caller and complete processing.

To use this example, you must also use the assembler program following the C/370 example.