Asmc Macro Assembler Reference
instruction or register not accepted in current CPU mode
An attempt was made to use an instruction, register, or keyword that was not valid for the current processor mode.
For example, 32-bit registers require .386 or above. Control registers such as CR0 require privileged mode .386P or above. This error will also be generated for the NEAR32, FAR32, and FLAT keywords, which require .386 or above.
* ML 6.0 compatible error