公开(公告)号：EP0926589A1

公开(公告)日：1999-06-30

申请号：EP97830716.3

申请日：1997-12-24

Applicant: STMicroelectronics S.r.l.

Inventor： Pappalardo, Francesco ,  Tesi, Davide, c/o SGS-Thomson Microelectronics ,  Mammoliti, Francesco Nino ,  Bombaci, Francesco

IPC: G06F9/00 ,  G06F9/318

CPC classification number: G06F9/30181 ,  G06F9/30003 ,  G06F9/30145

Abstract: The present invention relates to a processor provided with a set of instructions formed, in general, of an operation section (S1) and an operand section (S2); for at least one (CNTR) of the instructions, the operand section (S2) represents operation control signals (CO) of the processor. In this way, an extension of the set of instructions can be simulated for tailoring the set of instructions to the user's own requirements. Consequently, the processor control unit (UC) should be capable of coupling its outputs (CO) to its inputs (II) upon receiving one such instruction, thereby to transfer such internal operation control signals without interpretation.

Abstract translation: 本发明涉及一种设置有一组通常由操作部分（S1）和操作数部分（S2）组成的指令的处理器; 对于指令的至少一个（CNTR），操作数部分（S2）表示处理器的操作控制信号（CO）。 以这种方式，可以模拟指令集的扩展，以便根据用户自己的要求定制指令集。 因此，处理器控制单元（UC）在接收到一个这样的指令时应该能够将其输出（CO）耦合到其输入（II），从而在没有解释的情况下传送这样的内部操作控制信号。