The only combination of AMODE and RMODE that is not valid is AMODE
24/ RMODE ANY.
The following errors will keep your program from assembling:
- Multiple AMODE/RMODE statements for a single control section
- An AMODE/RMODE statement with an incorrect or missing value
- An AMODE/RMODE statement whose name field is not that of a valid
control section in the assembly.