4.9.46 Processor Directive
The PROCESSOR
directive should be used in a module if the
assembler source is only applicable to one device. The -mcpu
option must
always be used when building to specify the target device the code is being built for. If
there is a mismatch between the device specified in the directive and in the option, an
error will be triggered.
For example:
PROCESSOR 18F4520