Patent ID: 6763449
Filing Date: 2004-07-13
Classification: G06F

Abstract:
An operation-processing apparatus, comprising:an instruction-decoding unit decoding an existing instruction into an operation code including at least instruction-type-determining information for determining whether the instruction is an existing instruction or an extension instruction; an existing-operation-executing unit executing an existing operation according to the operation code and outputting an operation-termination-notifying signal; an extension-operation-executing unit operating in synchronism with the existing-operation-executing unit to execute an extension operation according to the operation code; a control unit determining whether the instruction is the existing instruction or the extension instruction based on the instruction-type-determining information; and a selection unit selecting data generated as a result of the extension operation executed by the extension-operation-executing unit, when the instruction has been determined to be the extension instruction, and the control unit receives the operation-termination-notifying signal.