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301.
公开(公告)号:SI2430532T1
公开(公告)日:2014-02-28
申请号:SI201030428
申请日:2010-11-08
Applicant: IBM
Inventor: GREINER DAN , OSISEK DAMIAN LEO , SLEGEL TIMOTHY , HELLER LISA
IPC: G06F9/00
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公开(公告)号:ES2435634T3
公开(公告)日:2013-12-20
申请号:ES10775820
申请日:2010-11-08
Applicant: IBM
Inventor: GREINER DAN , OSISEK DAMIAN , SLEGEL TIMOTHY , HELLER LISA
Abstract: Un procedimiento implementado por ordenador para bloquear que funciones específicas a ser realizadas por unainstrucción sean ejecutadas por un procesador lógico que ejecuta una máquina virtual, en el que el procedimientocomprende: establecer (1251) un valor (1008) de bloqueo de instrucción definido para la máquina virtual, para bloquear laejecución de una instrucción, en el que el valor de bloqueo de instrucción indica las funciones permitidas; extraer (1252), por dicho procesador lógico, una instrucción (1101) a ser ejecutada por el procesador lógico, enel que la instrucción comprende un código de operación y especifica un código (1102) de función de entre unapluralidad de códigos de función, en el que el código de función se usa para seleccionar la función a realizarpor la instrucción, en el que la instrucción es soportada por uno o más procesadores físicos; determinar (1253) un valor de bloqueo de instrucción para la instrucción extraída que tiene el código de función,comparando (1253) el valor de bloqueo de instrucción definido para la máquina virtual con el código deoperación de la instrucción extraída; en respuesta al valor de bloqueo de instrucción que permite (1007, 1255) la ejecución de la instrucción quetiene el código de función, ejecutar la instrucción extraída por el procesador lógico; y en respuesta al valor de bloqueo de instrucción que no permite (1006, 1256) la ejecución de la instrucción quetiene el código de función, bloquear la ejecución de la instrucción extraída y causar un evento de excepción deprograma.
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公开(公告)号:CA2928277A1
公开(公告)日:2013-12-19
申请号:CA2928277
申请日:2013-05-03
Applicant: IBM
Inventor: GREINER DAN , JACOBI CHRISTIAN , SLEGEL TIMOTHY
Abstract: Task specific diagnostic controls are provided to facilitate the debugging of certain types of abort conditions. The diagnostic controls may be set to cause transactions to be selectively aborted, allowing a transaction to drive its abort handler routine for testing purposes. The controls include, for instance, a transaction diagnostic scope and a transaction diagnostic control. The transaction diagnostic scope indicates when the transaction diagnostic control is to be applied, and the transaction diagnostic control indicates whether transactions are to selectively aborted.
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公开(公告)号:CA2874184A1
公开(公告)日:2013-12-19
申请号:CA2874184
申请日:2012-11-26
Applicant: IBM
Inventor: GREINER DAN , SLEGEL TIMOTHY , JACOBI CHRISTIAN , RELSON PETER JEREMY , PHILLEY RANDALL WILLIAM
IPC: G06F9/30
Abstract: An operation is provided to signal a processor that action is to be taken to facilitate execution of a transaction that has aborted one or more times. The operation is specified within an instruction or is itself an instruction. The instruction is executed based on detecting an abort of the transactions, and includes a field indicating how many times the transaction has aborted. The processor uses this information to determine what action is to be taken.
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公开(公告)号:CA2874176A1
公开(公告)日:2013-12-19
申请号:CA2874176
申请日:2012-11-22
Applicant: IBM
Inventor: GREINER DAN , JACOBI CHRISTIAN , SLEGEL TIMOTHY
Abstract: A NONTRANSACTIONAL STORE instruction, executed in transactional execution mode, performs stores that are retained, even if a transaction associated with the instruction aborts. The stores include user-specified information that may facilitate debugging of an aborted transaction.
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公开(公告)号:CA2852862A1
公开(公告)日:2013-07-04
申请号:CA2852862
申请日:2012-11-13
Applicant: IBM
Inventor: CARLOUGH STEVEN , SCHWARZ ERIC MARK , SLEGEL TIMOTHY , GAINEY CHARLES JR , MITRAN MARCEL , COPELAND REID
Abstract: Machine instructions, referred to herein as a long Convert from Zoned instruction (CDZT) and extended Convert from Zoned instruction (CXZT), are provided that read EBCDIC or ASCII data from memory, convert it to the appropriate decimal floating point format, and write it to a target floating point register or floating point register pair. Further, machine instructions, referred to herein as a long Convert to Zoned instruction (CZDT) and extended Convert to Zoned instruction (CZXT), are provided that convert a decimal floating point (DFP) operand in a source floating point register or floating point register pair to EBCDIC or ASCII data and store it to a target memory location.
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公开(公告)号:GB2488458A
公开(公告)日:2012-08-29
申请号:GB201207328
申请日:2010-12-14
Applicant: IBM
Inventor: SLEGEL TIMOTHY , GREINER DAN , SHUM CHUNG-LUNG KEVIN , JACOBI CHRISTIAN
Abstract: A non-quiescing key setting facility is provided that enables manipulation of storage keys to be performed without quiescing operations of other processors of a multiprocessor system. With this facility, a storage key, which is accessible by a plurality of processors of the multiprocessor system, is updated absent a quiesce of operations of the plurality of processors. Since the storage key is updated absent quiescing of other operations, the storage key may be observed by a processor as having one value at the start of an operation performed by the processor and a second value at the end of the operation. A mechanism is provided to enable the operation to continue, avoiding a fatal exception.
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公开(公告)号:SI2229631T1
公开(公告)日:2012-05-31
申请号:SI200930236
申请日:2009-01-05
Applicant: IBM
Inventor: GREINER DAN , GAINEY JR CHARLES , HELLER LISA , OSISEK DAMIAN , SLEGEL TIMOTHY , SITTMANN III GUSTAV
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公开(公告)号:CA2800640A1
公开(公告)日:2011-12-29
申请号:CA2800640
申请日:2010-11-08
Applicant: IBM
Inventor: GREINER DAN , OSISEK DAMIAN LEO , SLEGEL TIMOTHY , HELLER LISA
Abstract: In a processor supporting execution of a plurality of functions of an instruction, an instruction blocking value is set for blocking one or more of the plurality of functions, such that an attempt to execute one of the blocked functions, will result in a program exception and the instruction will not execute, however the same instruction will be able to execute any of the functions that are not blocked functions.
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公开(公告)号:PL1653365T3
公开(公告)日:2011-07-29
申请号:PL05108507
申请日:2004-05-06
Applicant: IBM
Inventor: SLEGEL TIMOTHY , HELLER LISA , PFEFFER ERWIN , PLAMBECK KENNETH
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