Internally, however, these instructions are not separate operations, but sequences of the operations the units actually perform. Retrieved January 22, Some processor designs use machine code that runs in a special mode, with special instructions, available only in that mode, that have access to processor-dependent hardware, to implement some low-level features of the instruction set. These are known as " bit slice " chips. Microchip is most likely attempting to form some sort of consistency between each of the compiler families, directives, linker options, etc.
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