摘要:
Method and apparatus is disclosed for loading the content of a data memory address register with a selected portion of a data word as it is being read from that same memory such that, during the next memory access cycle, an indexed jump may be made to a desired memory location other than the next successive location in the data memory.
摘要:
Die Erfindung betrifft ein Verfahren und eine Schaltungsanordnung zur Erweiterung des Adressierungsvolumens einer Zentraleinheit, insbesondere eines Mikroprozessors, über den durch den Adressenvorrat eines vorgesehenen Befehlszählers gegebenen Adressenumfang hinaus. Um diese Erweiterung ohne Bereitstellung einer weiteren Zentraleinheit zu ermöglichen, ist vorgesehen, zumindest eine Grundadresse der Zentraleinheit dazu heranzuziehen, die Abgabe zu sätzlicher Adreßbits zu bewirken, die mit den Adreßbits der betreffenden Grundadresse zu einer Erweiterungsadresse zusammengefaßt werden. Die Hauptanwendung der vorliegenden Erfindung ergibt sich in der Zentraleinheit einer Fernschreib-Nebenstellenanlage.
摘要:
Dispositif d'adressage de pages dans un système de traitement comportant un registre d'adressage de pages de données (27) et un registre d'adressage de pages d'instructions (28) pouvant être modifiés au cours de l'exécution d'un programme permettant l'adressage de données d'un programme pouvant se trouver dans la même page que les instructions ou dans une page différente. Si une instruction ayant transféré dans le registre de retard (35) le contenu des registres d'adressage (27 et 28) avant introduction d'une nouvelle information d'adressage dans le registre d'adressage (28) est suivie d'une instruction de branchement, l'adresse de l'instruction suivante est donnée par le contenu du registre d'adressage (28) et par l'adresse de déplacement dans cette page donnée par le champ d'adresse dans l'instruction de branchement. Le contenu du registre d'adresse d'instruction (4) et le contenu du registre de retard (35) sont transférés dans le registre de liaison (6).
摘要:
The vector processor of the present invention is designed to have a first function for classifying, generating and storing in advance a separate index set by judging the attribute of specified data and a second function for continuously performing operand access only for the index value belonging to the specified index set out of the index sets generated by the first function, thus avoiding the deterioration of the efficiency of pipeline processing even when the calculation of array date having different operation content according to the attribute of the specified data. Accordingly it can perform continuous calculation of a plurality of different conditioned expressions at high speed by arranging so as to operate the first and the second functions concurrently with the value results from the operation by the second function being used by the first function as a data for discriminating the attribute of the data.
摘要:
A device for use with a digital computer for storing standard software used by the computer and modifying the address portions of the standard software prior to transmission to the computer. The device includes a ROM package containing a ROM within which is stored a standard software subprogram written assuming it is stored at an absolute location in the computer's memory other than its actual location in the computer's memory system. Also included in the ROM package is a base register which can be loaded, under control of the operating system software, with an offset value reflecting the difference betweenthe actual starting memorysystem location of the subprogram stored in the ROM and the assumed absolute starting location of the subprogram. Each ROM word includes an extra bit to indicate whether the corresponding data word contains an address requiring relocation. As a word is read out of ROM, a gating circuit tests whether an address relocation is required. If the test is positive, the gating circuit gates the value in the base register into one input of an adder located on the ROM package, the other input to the adder coming from the data word read out of the ROM. The resulting modified data word outputted from the adder is sent to the computer. If the ROM output does not indicate that a relocation is required, the gating circuit provides a zero input to the adder so that the adder output reflects the unmodified input from the ROM.