Semiconductor device

Details Semiconductor device Semiconductor device

2007-02-13

2007-02-13

Treat, William M. (Department: 2181)

Electrical computers and digital processing systems: processing

Processing control

Branching

Reexamination Certificate

active

10602640

ABSTRACT:
An object of the present invention is to provide a semiconductor device that can prevent performance degradation due to wasted execution cycles. According to the present invention, a fetch is performed in an information fetch block (IFB2) on the basis of the status of a branch-taken signal (BRTKN9) provided from an execution block (EXB4), wherein if a conditional branch is taken, the IFB2selects a branch target address and if not, the IFB2selects an address of the next instruction. The IFB2then provides the selected address to an instruction memory (1) to control the fetch in accordance with the address.

REFERENCES:
patent: 5918045 (1999-06-01), Nishii et al.
patent: 6119221 (2000-09-01), Zaiki et al.
patent: 6260138 (2001-07-01), Harris
patent: 6609194 (2003-08-01), Henry et al.
patent: 2002/0099910 (2002-07-01), Shah
patent: 2001-172504 (2000-06-01), None

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