Electrical computers and digital processing systems: processing – Processing control – Branching
Reexamination Certificate
2006-05-16
2006-05-16
Ellis, Richard L. (Department: 2183)
Electrical computers and digital processing systems: processing
Processing control
Branching
C712S207000, C712S237000
Reexamination Certificate
active
07047399
ABSTRACT:
A computer system for executing branch instructions and a method of executing branch instructions are described. Two instruction fetchers respectively fetch a sequence of instructions from memory for execution and a sequence of instructions commencing from a target location identified by a set branch instruction in a sequence of instructions being executed. When an effect branch signal is generated, the target instructions are next executed, and the fetcher which was fetching the instructions for execution commences fetching of the target instructions.The effect branch signal is generated separately from the set branch instruction.In another aspect, the effect branch signal is generated on execution of a conditional effect branch instruction, located at the point in the instruction sequence where the branch is to be taken.
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Sidwell Nathan M.
Sturges Andrew C.
Ellis Richard L.
Jorgenson Lisa K.
McLoughlin Daniel P.
SGS-Thomson Microelectronics Limited
Wolf Greenfield & Sacks P.C.
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