Asmc Macro Assembler Reference
incompatible CPU mode and segment size
An attempt was made to open a segment with a USE16, USE32, or FLAT attribute that was not compatible with the specified CPU, or to change to a 16-bit CPU while in a 32bit segment.
The USE32 and FLAT attributes must be preceded by one of the following processor directives: .386, .386C, .386P, .486, or .486P.
* ML 6.0 compatible error