公开(公告)号：DE2909987A1

公开(公告)日：1979-09-20

申请号：DE2909987

申请日：1979-03-14

Applicant: IBM

Inventor： GANNON PATRICK MELVIN ,  LIPTAY JOHN STEPHEN ,  RYMARCZYK JAMES WALTER

IPC: C08F4/46 ,  G06F9/308 ,  G06F9/312 ,  G06F9/345 ,  G06F9/38 ,  G06F12/04 ,  G06F12/08 ,  G06F12/0855 ,  G06F12/0886 ,  G06F9/00 ,  G06F13/06 ,  G11C7/00 ,  G11C9/00

公开(公告)号：AU3320978A

公开(公告)日：1979-08-16

申请号：AU3320978

申请日：1978-02-10

Applicant: IBM

Inventor： GANNON PATRICK MELVIN ,  HELLER ANDREW ROBERT ,  SMITH RONALD MORTON

IPC: G06F12/10 ,  G06F9/06

公开(公告)号：DE2346525A1

公开(公告)日：1974-05-02

申请号：DE2346525

申请日：1973-09-15

Applicant: IBM

Inventor： AHEARN THOMAS PAUL ,  CAPOWSKI ROBERT STANLEY ,  CHRISTENSEN NEAL TAYLOR ,  GANNON PATRICK MELVIN ,  LEE ERLIN EARL ,  LIPTAY JOHN STEHPEN

IPC: G06F12/10 ,  G06F13/06 ,  G06F9/18

Abstract: This specification describes a virtual memory system in which a set of conversion tables is used to translate an arbitrarily assigned programming designation called a virtual address into an actual main memory location called a real address. To avoid the necessity of translating the same addresses over and over again, a table called the Directory Look Aside Table (DLAT) retains current virtual to real address translations for use where particular virtual addresses are requested more than once. Each translation retained by the DLAT is identified by an identifier (ID) that signifies the set of tables used in that translation. This identifier is compared with an identifier generated for the currently requested virtual address. If these identifiers match and the virtual address retained in the DLAT matches the currently requested virtual address, the translation stored in the DLAT may be used. If the identifiers or virtual address don't match, a new translation must be performed using the set of conversion tables associated with the currently requested address.

公开(公告)号：DE2824711A1

公开(公告)日：1978-12-21

申请号：DE2824711

申请日：1978-06-06

Applicant: IBM

Inventor： GANNON PATRICK MELVIN ,  SY KIAN-BON K

IPC: G06F12/08 ,  G06F9/34 ,  G06F12/00 ,  G06F12/06 ,  G06F13/16 ,  G06F9/18 ,  G06F3/00 ,  G06F13/06

公开(公告)号：DE2817431A1

公开(公告)日：1978-11-09

申请号：DE2817431

申请日：1978-04-21

Applicant: IBM

Inventor： GANNON PATRICK MELVIN ,  JONES JULIUS DWIGHT ,  JUNOD DALE MILTON ,  PARTRIDGE RICHARD LANE ,  WRIGHT THOMAS RICHARD

IPC: G06F12/04 ,  G06F12/08 ,  G06F11/00 ,  G06F13/06

公开(公告)号：DE2807476A1

公开(公告)日：1978-09-28

申请号：DE2807476

申请日：1978-02-22

Applicant: IBM

Inventor： GANNON PATRICK MELVIN ,  HELLER ANDREW ROBERT ,  SMITH RONALD MORTON

IPC: G06F12/10 ,  G06F9/00 ,  G06F9/20 ,  G06F13/06