Exit-put routine interface, APSUPUTC

The exit-put service routine interface is an assembler routine that is used to call APSUPUT from a C exit routine. It puts the address of APSUECA into register 5 (which is required by APSUPUT), calls APSUPUT, and passes the return code from APSUPUT back to the calling C exit. APSUPUTC uses ECACSAVE as its own save area.

Input for APSUPUTC

When APSUPUTC is entered, it contains these:

Register 1

Pointer to the address of two parameters:

• Address of parameter area APSGEXTP
• Address of 4-byte return code that holds the return code of APSUPUT

Register 13

Pointer to caller's save area

Register 14

Return address

Register 15

Entry-point address

Output for APSUPUTC

APSUPUTC passes the return code from APSUPUT back in the return code parameter.