Apparatus for branch prediction for computer instructions

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3642613, 3642615, 364938, 3649381, G06F 900, G06F 932

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active

049145797

ABSTRACT:
An apparatus for branch prediction for computer instructions predicts the outcome of an executing branch instruction in response to instruction operands Q, R, and B. The apparatus includes combinatorial logic for predicting a first branch condition, ((Q+R)-B)>0, or a second branch condition ((Q+R)-B).ltoreq.0.

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214 USPQ in Re Abele and Marshall, pp. 682-691.
IBM Technical Disclosure Bulletin, vol. 28, No. 9, Feb. 1986, Early Resolution of BXLE and BXH Instructions without Addition.

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