To provide a circuit which supplies an instruction stream to a processing device.
The execution form of a circuit is suitable to be used for a RISC CUP and on the other hand, in another execution form, the circuit can be used for another processing device such as a small processing device that is used in a field programmable array. The circuit receives an external instruction stream that supplies a set of 1st instruction values and also has a memory including a set of 2nd instruction values. Plural outputting parts supply instruction streams 13 and 14 to a processing device 3. The circuit provides a selecting means 11 with a control input 12 which allocates bits from the sets of 1st and 2nd instruction values to respective instruction streams to the processing device in the form of a mask.
MARSHALL ALAN DAVID
VUILLEMIN JEAN
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