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

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11111 !III VIII I 1101 1,411111111,111111 IIII•111111.11.111111111111111,11 1111 III 1111111 1111111111111.11111111111111111 111111.1,Subtract Register (PSR)0 5 8 15Op codeModifier1 1 1 1 1 X X X 0 0 0 00 1 0 1 0III)F 8-F 0 2The contents of the register specified by R are subtracted algebraically from the contentsof the accumulator. The resulting difference replaces the contents of the accumulator. IfR specifies an index register (R01 to 111), the contents of the index register are notchanged.An R field of 000 specifies the accumulator. This means that the accumulator can besubtracted from itself, giving a simple method of setting the accumulator contents to a0 value.The carry and result indicators are set to reflect the resulting difference in theaccumulator. The carry indicator is set on by a borrow from the high-order bit in theaccumulator.The overflow indicator is set to reflect the result only if it has not been set by aprevious operation. If the overflow indicator was previously set on, it will not be changedby the result of a subtract register instruction. If an overflow occurs, the accumulatorwill contain the correct low-order 16 bits of the result and the carry indicator will beturned on if the result is negative.The sign of the result is dependent upon the signs and magnitudes of both operands.Possible combinations (where operand B is always numerically greater than operand A,regardless of signs) are:From Operand Subtract Operand Sign of Resultin Accumulator in Storage in Accumulator+B +A+B —A—B +A ——B —A+A +B+A —B—A +B—A —BThe value in the accumulator is positive if the leftmost bit is a 0; the value in theaccumulator is negative if the leftmost bit is a 1. Negative numbers are in twos-complementform.Example:0 5 8 15PSR instruction(R = 101 specifies index registerOp code R Modifier5 is subtracted from accumulator) 1 1 1 1 1 1 0 1 0 0 0 010 0 1 0III) I I iiiiiiiF D 0 2Contents of accumulator 0000 0000 1110 1111Contents of index register 5 —0000 0000 0011 0101Result in accumulator0000 0000 1011 1010(in decimal: 239-53 = 186)
Complement Register (PCR)0 5 8 15Op code R Modifier1 1 1 1 1 X XX 0 0 0 011 0 0 01 1 1 1 1 1 1 1F 8-F 0 8The twos-complement of the register specified by R replaces the contents of the sameregister. An R field of 000 specifies the accumulator.The carry indicator is not changed. The overflow indicator is set on if the number tobe complemented is the maximum negative number that can be represented (a I followed byfifteen 0's). The result indicators are changed to reflect the final contents of theaccumulator or index register.The twos-complement of a number is obtained by inverting each bit of the number andthen adding a binary 1 to the result.Example:0PCR instructionR =010 specifies indexregister 2 is to becomplemented)Before PCR operationIndex register 20 5 8 15Op code1 1 1 1 1!IIIR0 1 0 0 0 0 011 0 0 0I I Mil!!F A 0 80 150 0 0 1 1 1 1 0 0 1 1 0 1 0 0 11111111111111111 E 6 9Complement procedure:Invert bitsAdd +1Twos - complement1110 0001 1001 0110+0000 0000 0000 00011110 0001 1001 01110After PCR operationIndex register 20151 1 1 0 0 0 0 1 1 0 0 1 0 1 1 1111111111111111E 1 9 7Processor Instructions 4-19
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GA34-0003-7File No. S7-00IBM System
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ContentsPrefaceChapter 1. Introduct
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Flagging 15-26Track Initialization
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PrefaceThis reference manual is a s
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IntroductionCHAPTER CONTENTSSystem/
Page 13 and 14: Figure 1-1. IBM 5028 Operator Stati
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
Page 62 and 63: NMI INNI 1111=111111 IM11111■1111
Page 66 and 67: I i 1111111'1Np■I0111m PIP ,ili11
Page 68 and 69: Example:Word in accumulator 0110 11
Page 70 and 71: Exclusive ORing occurs only between
Page 72 and 73: Shift Left Circular (PSLC)0 5 8 11
Page 74 and 75: Shift Right Arithmetic (PSRA)0 5 8
Page 76 and 77: Example:PB instruction(R = 110 spec
Page 78 and 79: Branch and Link Long (PBALL)0 5 8 1
Page 80 and 81: Branch Conditional (PBC►0 5 8 9 1
Page 82 and 83: Branch and Unmask Long (BUL) (5010
Page 84 and 85: Skip Conditional (PSKC)0 5 8 9 15Op
Page 86 and 87: Example:0 5 8 15PAS instruction(loc
Page 88 and 89: Load from Register (PLR)0 5 8 15Op
Page 90 and 91: Load Processor Status (PLPS)0 5 8 1
Page 92 and 93: Write IAR Backup (WIB) (5010 Proces
Page 94 and 95: Store Indicators (STI) (5010 Proces
Page 96 and 97: Executing the OR-to-mask instructio
Page 98 and 99: the process position. If the system
Page 100 and 101: Read Protect Key (RPK)0 5 8 11 16 2
Page 102 and 103: Module address field:Module address
Page 104 and 105: 11111E111111111 M11111111•11111 1
Page 106 and 107: 1111111111111111111111■11•11111
Page 108 and 109: Page of GA34-0003-6, -7As Updated A
Page 110 and 111: Sixteen bits of additional module i
Page 112 and 113: 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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Page of GA34-0003-6, -7As Updated A
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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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