公开(公告)号：JPS62106545A

公开(公告)日：1987-05-18

申请号：JP23023886

申请日：1986-09-30

Applicant: IBM

Inventor： EMMA PHILIP G ,  POMERENE JAMES H ,  RAO GURURAJ S ,  RECHTSCHAFFEN RUDOLPH N ,  SACHAR HOWARD E ,  SPARACIO FRANK J

IPC: G06F9/38

公开(公告)号：DE3687744T2

公开(公告)日：1993-08-19

申请号：DE3687744

申请日：1986-09-05

Applicant: IBM

Inventor： EMMA PHILIP G ,  POMERENE JAMES H ,  RAO GURURAJ S ,  RECHTSCHAFFEN RUDOLPH N ,  SACHAR HOWARD E ,  SPARACIO FRANK J

IPC: G06F9/38

Abstract: A data-dependent branch table (64) is described, which is a mechanism that is sensitive to those operands that will be tested in order to determine branch action outcomes. The data dependent branch table operates in conjunction with a branch history table to anticipate those instances where the branch history table will make an erroneous prediction, including means to correct the branch history table prior to the time that the actual prediction is made.

公开(公告)号：DE3687744D1

公开(公告)日：1993-03-25

申请号：DE3687744

申请日：1986-09-05

Applicant: IBM

Inventor： EMMA PHILIP G ,  POMERENE JAMES H ,  RAO GURURAJ S ,  RECHTSCHAFFEN RUDOLPH N ,  SACHAR HOWARD E ,  SPARACIO FRANK J

IPC: G06F9/38

Abstract: A data-dependent branch table (64) is described, which is a mechanism that is sensitive to those operands that will be tested in order to determine branch action outcomes. The data dependent branch table operates in conjunction with a branch history table to anticipate those instances where the branch history table will make an erroneous prediction, including means to correct the branch history table prior to the time that the actual prediction is made.