C/C++ AMODE/RMODE considerations
The following table shows valid AMODE and RMODE combinations when the C/C++ runtime product is installed with the runtime library, EDCZV, having RMODE=ANY. These settings are the installation defaults. XPLINK executable programs always run with AMODE=31.
| Product | RMODE | AMODE | Note |
|---|---|---|---|
| C/C++ with CICS/ESA | ANY | 31 | All programs must use this AMODE and RMODE combination. |
| C/C++ with COBOL | 24 or ANY | 31 | For VS COBOL II, all COBOL programs must be compiled with the RES compiler option, which causes AMODE=31. For COBOL for OS/390 & VM, COBOL for MVS & VM and COBOL/370, AMODE=31 always. |
| C/C++ with DB2® R2.2 | 24 or ANY | 31 | All programs must use this AMODE and RMODE combination. |
| C/C++ with IMS/ESA® V3R1 | 24 or ANY | 31 | All programs must use the same AMODE and RMODE combination. There are no restrictions on IMS/ESA parameters. |
One of the following:
|
24 or ANY | 31 | All programs must use the same AMODE and RMODE combination. |
For information on AMODE switching, see z/OS XL C/C++ Runtime Library Reference.