Processor Description Languages

68 CHAPTER 4 nML

The accumulator register of the tctcore processor combines two registers in a

record:

reg MR0<num>;

reg MR1<num>;

reg MR<acc>{ // record register

MR0;

MR1;

};

The width of the record register must be equal to the sum of the widths of its

components.The width of a storage is defined by the

bits specifier of its data type,in

the C

++

processor header file.All storage elements,including memories and register

files, can be combined in records.

4.3.2 Storage Aliases

Some storage declarations provide just another view for already declared storage.

For example, in the tctcore description, the X/Y input registers of the ALU and

multiplier have been grouped ...