公开(公告)号：DE2555963A1

公开(公告)日：1977-06-16

申请号：DE2555963

申请日：1975-12-12

Applicant: IBM DEUTSCHLAND

Inventor： BLUM ARNOLD DIPL ING ,  IRRO FRITZ DIPL ING ,  HEYDEN HORST VON DER ,  RICHTER STEPHAN ,  SCHULZE-SCHOELLING HERMANN ,  SCHAAL HELMUT

IPC: G06F12/00 ,  G06F9/22 ,  G06F9/26 ,  G06F9/28 ,  G06F9/318 ,  G06F9/38 ,  G06F9/46 ,  G06F9/48 ,  G06F12/06 ,  G06F15/16 ,  G06F15/177 ,  G06F9/18

Abstract: 1533770 Data processing INTERNATIONAL BUSINESS MACHINES CORP 26 Oct 1976 [12 Dec 1975] 44531/76 Heading G4A In a multiprogrammed system in which time slices are allocated to programs by chained index words, the functions of specified types of instructions in specified programs are varied if certain external and/or internal non-program conditions are satisfied. The index words are held in a store 34, each word comprising a pointer which identifies which of a number of microprograms in a control store 20 is allocated the current time slice and a link address which points to a location in a store 36 holding the address of the next index word in store 34. The number of time slices allocated to any given micro-program by the index words in store 34 may be varied. The pointer from the current word accesses a micro-program pointer from a store 38 and the micro-program pointer in turn accesses the address of the next instruction for the relevant micro-program from a store 32. The current micro-program pointer from store 38 is compared with a set of micro-program identifiers and the OP code of the next microinstruction read from the control store 20 is compared with a set of micro-instruction identifiers. If equality is detected from both comparisons and if predetermined processor internal and/or peripheral external status signals are present a function change control signal on line 11 is produced and modification information pointed to by micro-program (or possibly microinstruction) pointer register 25 is read out from a buffer 29. The decoded modification information may be used, for example, to modify the result from the ALU 51 by +1. The processor also includes a data local store 46 for A and B operands and ALU results. The store 46 may also be used for loading micro-program and micro-instruction identifiers into the comparison registers and modification information into buffer 29 under micro-instruction control. The modification arrangements allow for (micro)programming flexibility without increasing the size of the (micro-)instruction set.

公开(公告)号：DE2747304A1

公开(公告)日：1979-04-26

申请号：DE2747304

申请日：1977-10-21

Applicant: IBM DEUTSCHLAND

Inventor： BAZLEN DIETER DIPL ING DR ,  BERGER ROLF DIPL ING ,  BLUM ARNOLD DIPL ING ,  BOCK DIETRICH DIPL ING ,  CHILINSKI HERBERT DIPL ING ,  GENG HELLMUTH ROLAND ,  HAJDU JOHANN ,  IRRO FRITZ DIPL ING ,  NEUBER SIEGFRIED ,  WILLE UDO

IPC: G06F9/22 ,  G06F9/16 ,  G06F13/06

Abstract: In a micro-controlled data handling system the number of lines and pins required to transfer control signals from the microprogram controls to be integrated circuit modules controlled by such signals is conserved by using two bussing paths for distributing the control signals to the modules. A first path is dedicated exclusively to pre-decoded control signal functions and a second path is shared for transferring both data and control signal functions. Each controlled module contains an additional decoding circuit for combinationally decoding control signal functions received through both paths.

公开(公告)号：DE2622140A1

公开(公告)日：1977-11-24

申请号：DE2622140

申请日：1976-05-19

Applicant: IBM DEUTSCHLAND

Inventor： BLUM ARNOLD DIPL ING ,  HEYDEN HORST VON DER DIPL ING ,  IRRO FRITZ DIPL ING ,  KNAUFT GUENTER ,  RICHTER STEPHAN ING GRAD ,  SCHULZE-SCHOELLING HERMANN ING

IPC: G06F11/22 ,  G06F3/023 ,  G06F9/00 ,  G06F9/46 ,  G06F11/36 ,  G06F9/18

公开(公告)号：DE2407241A1

公开(公告)日：1975-08-21

申请号：DE2407241

申请日：1974-02-15

Applicant: IBM DEUTSCHLAND

Inventor： BLUM ARNOLD DIPL ING ,  IRRO FRITZ DIPL ING ,  SONNTAG GUENTHER DIPL ING

IPC: G06F11/00 ,  G06F11/20 ,  G06F13/14 ,  G06F15/16 ,  G06F15/177

公开(公告)号：DE2264752A1

公开(公告)日：1975-02-06

申请号：DE2264752

申请日：1972-10-02

Applicant: IBM DEUTSCHLAND

Inventor： BLUM ARNOLD DIPL ING ,  MOHR CLAUS DR ING ,  REICHL LEOPOLD DIPL ING ,  SONNTAG GUENTER DIPL ING ,  GENG ROLAND ,  IRRO FRITZ DIPL ING

IPC: G06F11/10 ,  G06F11/14

Abstract: The receiver determines a transmission error by means of parity testing circuits. When there is an error present, an error indication is stored automatically. The defective data element is given a parity corresponding to the defective information by means of a generator circuit. The data block is then transmitted completely and after transmission the error indication is requested by the control microprogramme. When the errors have appeared, the data block is transmitted once more.

公开(公告)号：DE2245284A1

公开(公告)日：1974-04-04

申请号：DE2245284

申请日：1972-09-15

Applicant: IBM DEUTSCHLAND

Inventor： BLUM ARNOLD DIPL ING ,  IRRO FRITZ DIPL ING ,  LAMPE HANS HERMANN ,  MOHR CLAUS DIPL ING DR ,  REICHL LEOPOLD DIPL ING ,  RUDOLPH PETER

IPC: G06F11/22 ,  G06F9/30 ,  G06F9/318 ,  G06F9/40 ,  G06F9/44 ,  G06F9/448 ,  G06F9/46 ,  G06F9/18