IBM System/7 Functional Characteristics - All about the IBM 1130 ...

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SYSTEM/7 CONFIGURATIONSThe System/7 is designed so that both its functional and physical structure are highlymodular. This permits great flexibility in designing configurations for a broad spectrumof applications. Furthermore, the modularity allows easy expansion of a small initialinstallation to a more powerful configuration as future needs require.System/7 can operate as a standalone computing system, or it can function as asatellite processor linked to a host processor which is on-site or at a remote distance.The System/7 is structured independently of any host processor, and is designed toprovide modular data acquisition and modular sensor-based I/O functions independent ofthe host processor to which it may be linked. Therefore, the host processor can bemodified or replaced without affecting the System/7. This gives an installation moreflexibility in its overall system planning and minimizes the disturbance to its machineinterfaces.The System/7 can be configured in any one of the following ways:1. A standalone system with one I/O module of any type contained in the IBM 5026enclosure. (See Figure 1-1.)2. A standalone system with as many as 11 I/O modules in any combination and aseparate IBM 5024 attachment enclosure with a line printer and/or a 2502 cardreader.3. One or more of the configurations described in items 1 and 2 operating as satelliteprocessors linked to the IBM System/360 (model 25 and larger), the IBMSystem/370 or the IBM 1800 Data Acquisition and Control System. To accomplishthis, each System/7 must have the Asynchronous Communications ControlAttachment (ACCA).4. One or more of the configurations described in items 1 and 2 operating as satelliteprocessors linked to the IBM System/370, the IBM System/3, or anotherSystem/7. To accomplish this, each System/7 must have the Binary SynchronousCommunications Adapter (BSCA).5. Any one of the configurations described in items 1 and 2 attached directly to anIBM 1130 Computing System via the 1130 Storage Access Channel.When operating as a satellite processor or directly attached to the" 1130 Storage AccessChannel, it is possible to initial program load (IPL) the System/7 from the hostprocessor.The IBM 5028 Operator Station is used for communication between the operator andthe System/7. Input is presented via the keyboard or paper tape reader. Output is via theprinter or paper tape punch. Preparation of programs and IPL of the system can be accomplishedthrough the operator station.IPL can also be accomplished through the IBM 5022 Disk Storage Module.Processor ModuleEvery System/7 configuration has a 5010 Processor Module which controls the system,performing data processing operations and issuing I/O instructions to the I/O modules.The main elements of the processor module are a processor, a monolithic storage, and achannel.The processor is a compact, 16-bit binary computer with a 400-nanosecond storage cycletime. Four priority interruption levels each with sixteen sublevels permit up to 64independent interrupt servicing routines to be automatically accessed by the processor.Interruption priority level switching time is minimized by four sets of machine registersand program indicators, one set for each of the four interruption levels. Interruptionsalso occur for error conditions such as program check, machine check, and power/thermalfailure conditions.1-2 GA34-0003
Figure 1-1. IBM 5028 Operator Station and IBM 5026 Enclosure Model A2The monolithic storage is organized into words of 16 bits (two bytes), plus a parity bitfor each byte. For the 5010 Processor Module models A and B, the smallest storagesize is 2K (2,048) words. Additional storage can be obtained in increments of 2K wordsto a maximum of 16K (16,384) words. For the Model E, storage size begins at 16K (16,384)words and, in increments of 4K, ends at 64K (65,536) words. Power to the system mustbe maintained to keep data in storage.The processor module contains two interval timers that function as separateprogram-controlled counters. Each is a 16-bit binary counter that decrements at50-microsecond intervals. The processor module also contains the adapter for attachingthe 5028 Operator Station. The model A or E processor module may also contain theAsynchronous Communications Control Attachment (ACCA) for communicating with aSystem/360, a System/370 or an 1800 Data Acquisition and Control System. The modelA or E processor module may also contain the Binary Synchronous CommunicationsAdapter (BSCA) for communicating'ith a System/3, a System/370, or another System/7.The ACCA and the BSCA are mutually exclusive within the model A or E processor module.The model B processor module contains an adapter for attaching the System/7 to the 1130Storage Access Channel.The channel is the communications link between the I/O devices and modules and theprocessor module. The channel interprets part of I/O instructions and provides some controlover interruptions to the processor. During data transfer, each word (16 bits) of data must betransferred between the I/0 device and the processor via a separate I/O instruction. Thismethod of operation is called direct program control. No processing operations can takeplace while the data transfer is in progress.Introduction 1-3
Page 3 and 4: GA34-0003-7File No. S7-00IBM System
Page 5 and 6: ContentsPrefaceChapter 1. Introduct
Page 7 and 8: Flagging 15-26Track Initialization
Page 9 and 10: PrefaceThis reference manual is a s
Page 11: IntroductionCHAPTER CONTENTSSystem/
Page 15 and 16: • One or two analog output points
Page 17 and 18: Power Failure and Thermal WarningPo
Page 19 and 20: IBM 5010 Processor ModuleCHAPTER CO
Page 21 and 22: StorageProcessorAACycleSteal/ Featu
Page 23 and 24: The processor does not recognize in
Page 25 and 26: DATA FORMATSInput/output data can b
Page 27 and 28: The absolute form can be obtained i
Page 29 and 30: Accumulators (ACC 0 to ACC 3)Page o
Page 31 and 32: Overflow IndicatorThe overflow indi
Page 33 and 34: System/7 InterruptionsCHAPTER CONTE
Page 35 and 36: Level 1interruptionprocessing'.ros
Page 37 and 38: Interruption Mask Register and Summ
Page 39 and 40: Page of GA34-0003-6,-7As Updated Au
Page 41 and 42: The accumulator associated with the
Page 43 and 44: Page of GA34-0003-6, -7As Updated A
Page 45 and 46: The summary mask isturned on; sampl
Page 47 and 48: Processor InstructionsCHAPTER CONTE
Page 49 and 50: InstructionMnemonic'OperationcodeLo
Page 51 and 52: ' rrrI !Mil,. '11111E1 luluINSTRUCT
Page 54 and 55: "" ',Pli iI 1114111111111111 111111
Page 56 and 57: Load Immediate (PLI)0 5 8 15Op code
Page 58 and 59: Store Accumulator (PST)0 5 8 15Op c
Page 60 and 61: vow wow. •1•01111111111111111
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NMI INNI 1111=111111 IM11111■1111
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11111 !III VIII I 1101 1,411111111,
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I i 1111111'1Np■I0111m PIP ,ili11
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Example:Word in accumulator 0110 11
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Exclusive ORing occurs only between
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Shift Left Circular (PSLC)0 5 8 11
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Shift Right Arithmetic (PSRA)0 5 8
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Example:PB instruction(R = 110 spec
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Branch and Link Long (PBALL)0 5 8 1
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Branch Conditional (PBC►0 5 8 9 1
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Branch and Unmask Long (BUL) (5010
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Skip Conditional (PSKC)0 5 8 9 15Op
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Example:0 5 8 15PAS instruction(loc
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Load from Register (PLR)0 5 8 15Op
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Load Processor Status (PLPS)0 5 8 1
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Write IAR Backup (WIB) (5010 Proces
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Store Indicators (STI) (5010 Proces
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Executing the OR-to-mask instructio
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the process position. If the system
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Read Protect Key (RPK)0 5 8 11 16 2
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Module address field:Module address
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11111E111111111 M11111111•11111 1
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1111111111111111111111■11•11111
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Page of GA34-0003-6, -7As Updated A
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Sixteen bits of additional module i
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1 REG 1---LEVEL0 10 0 2 1 20 0 0 03
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CTL CHK (Control Check) LightThis l
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1111■111111,11,11N I IIIADDRESS L
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CHECK CONTROL SwitchThis three-posi
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START KeyPressing the start key cau
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The processor module contains two 1
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6-4 GA34-0003II I 1 1 III 111 1111
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.11.1111111.111 MP I 111.10114P III
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1111 Minn. 11111111R !VW IMF" !PFLI
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The ACCA must be selected in order
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111.1111 111111 N uData and control
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I II III• 1111111111111111 1•11
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Significant Bits Meaning7* Data set
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I■ 0=11 1111111 MEM11 1111111111
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". — •• 11•111•MI !IF lim
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V IIF 1,1 NM IICONTROL CHARACTERS A
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Character SynchronizationCharacter
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Bit 1-Reserved.Bit 2-Transmit Opera
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1,114plilloi 1110 1111 1111.11 VI P
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1 1 - 1111=111111111 111M 1111 111
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The 5028 Operator Station (Figure 9
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Thickness Paper - .004 + .0003" (0,
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Character bit position 84 Tape move
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If the operator station motor is no
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Feed Tape and Print0 5 8 11 16 20 2
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Read 1SW0 5 8 11 16 20 26 31Op code
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The 5014 Analog Input Module Model
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Convert Analog Input with External
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Read ISW0 5 8 11 16 20 26 31Op code
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10-8 GA34-0003
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11111811111111.1.1.14.111.1111I II
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" 11, 141MINMIIIIF I WPM P IP !! 11
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Read and Convert ADC0 5 8 11 16 20
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Device Status Word (DSW): The 16 bi
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1411111111,1111111111n 111The 5014
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Convert Analog Input with External
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12-6 GA34-0003
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The 5012 Multifunction Module Model
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MODULE DEVICE ADDRESSESANALOG INPUT
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The range bits (RRR) in the control
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H1111111111111 1111.111111HIVRead A
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I/0 CommandsThe prepare I/O and hal
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Data stored in the register can hav
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If a particular amplifier gain was
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' 14 111•141111111111111011114111
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Read Digital Input Reference Regist
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Digital Input Groups Without Proces
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CIA ^iN1i Ma IIl AMINNNP u 11.!..11
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Write Analog Output Holding Registe
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1111111■11111111101=11111.1111111
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=111111111111111111 1 11 1 11111111
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DataThe data byte contains either d
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Read CommandsAll read commands are
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Write Null Acknowledge: This code (
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Area Station Local I/O Guidance Cha
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2791/2793 Adapter Critical timingIn
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BeginDSC* 05Write(AS enters data mo
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oww1111111111111111111111111,1,, V
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Bit 15 in the R register can be set
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The 5013 Digital I/O Module Model A
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The prepare I/O command is used as
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Read Digital Input RegisterO 5 8 11
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Set Digital Input Interrupt Control
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DIGITAL OUTPUT CONTROLThe Digital O
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The 2792 Remote Communications Cont
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Data TransmissionInformation is tra
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The functions of the five bytes in
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Code nameHexBit patternResponse Com
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Read End Acknowledge: This code (he
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Begin Diagnostic: This code (hexade
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Command SequencesThe 2790 Control m
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An area station requiring service l
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Set Diagnostic Mode0 5 8 11 16 20 2
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14-32 GA34-0003
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FUNCTIONAL DESCRIPTIONThe IBM 5022
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FILE ORGANIZATIONEach surface of ea
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Sector Identifier FormatEach identi
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If fewer than 128 words are to be t
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When the IPL operation starts, the
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Recalibrate Operation: A recalibrat
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1111 11 I 111111111111WRead Initial
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If an error is detected during a da
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None of the data read is transferre
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Error and Status ConditionsErrors d
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Significant Bits Meaning5* No recor
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Significant Bits Meaning3 Seek chec
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FLAGGINGThe condition of a track su
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Track Initialization ProceduresThe
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Bit 5—No Record FoundIt should be
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15-32 GA34-0003
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I III 1111111111111111111111111111
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Interruptions to System/7The progra
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Initiate Read0 16 21 24 31111111Add
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Device Status Word (DSW): The 16-bi
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16-10 GA34-0003
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The IBM 5024 I/O Attachment Enclosu
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III 1111•1111111111•1111111 III
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11111 1 11•1111111111111111111111
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Reset 5024The reset 5024 resets the
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2502 Card Reader Translate TableA 2
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I/O Transfer BlockThe address of th
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Status Word 1.0 152502 status buffe
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Status Word 2.0 15Status word 1% St
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1 1 111111111111111111111111111•1
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IMP P 1111,1111.11,11311111 I MP 11
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11 11 1111111111 1 1111111111111111
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algaaaagIrlug",',/"'", BeltPosition
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• Disable Attention Interrupt 110
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Status Word 1.0 15aStatus word 1•
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Status Word 2.15Status word 1N+1Res
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Interrupt PresentationThe printer a
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17-30 GA34-0003
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Add immediateMnemonicExecutiontime
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Alter storage key (provided only wi
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BranchMnemonicExecutiont i me (ns)O
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Branch conditionalMnemonicExecution
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Exclusive OR registertMnemonicExecu
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Level exitMnemonicExecutiontime (ns
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Load immediateMnemonicExecutiontime
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OR registerMnemonicExecutiontime (n
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Read protect key (provided only wit
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1111■11111■111111111 1 11111111
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StopMnemonicExecutiontime Ins)Op co
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SubtractMnemonicExecutiontime (ns)O
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A-26 GA34-0003
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PIO instruction Function ModifierDe
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1111111■111111PIO instruction Fun
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Valid responses to 2790 read comman
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Interrupt status wordsDevice0 1 2 3
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Device status word (2502, 5024 with
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11.1 11111 11110•11111111111.1111
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5028ConsoleShift/ 5028BSCAACCAContr
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5028ConsoleShift/ 5028BSCAACCAContr
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triNtitTIBitRanges and bit values (
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.••■• III II III 11111.•
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E-6 GA34-0003
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Verifydata beforewrite analogoutput
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Prepare I/OSet referenceregisterYes
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F-6 GA34-0003IIII•1111■•■
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G-2 GA34-0003
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analog signal resolution (continued
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cycle steal feature data flow 2-3cy
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forced interruption control, digita
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initial program load (IPL) to Syste
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111111•1111111111■ IllO (OR) in
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ead, 5022 Disk Storage Module (cont
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11111111111111111■1 1111111 11111
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X-16 GA34-0003
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GA34-0003-7Your comments, please ..
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I 111111111111111.1 I MEM II 1 1111
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