1. xerox 560 computer system - The UK Mirror Service

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STANDARD 8-BIT COMPUTER CODES (EBCDIC)Hexodecimol .0 1Binary 000.0 0001.0 0000 NUL OLE1 .0001 SOH DCI2 0010 STX DC23 0011 ETX DC34 .0100 EaT DC4~L5 .0101 HTI'~I~6 .011.0 ACK SYNS7 Dill BEL ETB~ 8 1000EOMIrBS 1\-,I~9 1001 ENQ EM~A 1.010 INAK SUBB 1.011 VT ESCC 1100 FF FS0 11.01 CR GSE 111.0 SO RSF 1111 SI US,3,Most C" .,.Digits2 3 4 5 6 7 8 9 A B C 0 E F0010 .0.011 .01.0.0 iQ101 .0110 .01111000 1001 1.010 1.011 1100 11.01 111.0 11111ds SP & -~.0ss ~~ ~ / ~ a j \1 A J 1fs~~ ~ W ~ b k s 11 B K S 2si~~ ~ ~ ~ c I t ~ 1 C L T 3~~ ~ ~ ~ d m u [ 1 0 M U 4;"" """~!;~;d' ] 1e n v E N V 5'/. '/// @ ~ f 0 w F a w 6'// '// '///~ r/0Z W/g p x G P X 7~~ ~ ~ ~ h q Y H Q Y 8~ ~ ~ ~ i r z I R Z 91-2 !1:~ ~ ~ ~S , ~ ~ ~ ~< * % @'{/// '//// "~i! ~~"""."" ,n/e/d/~( )-~ ~ ~ ~I+ i > =~ ~ ~ ~2 ,2?~ ~ ~ DELIINOTES:The characters ,.. \ t ~ [] are ANSCllcharacters that do not appear in any of theEBCDIC-based character sets, though theyare shown in the EBCDIC table.The characters ~ I-.appear in the 63- and89-character EBCDIC sets but not in eitherof the ANSCIl-based sets. However, Xeroxsoftware translates the charactersinto ANSCII characters as follows:EBCDIClIANSCII\ (6-0): (7-12)- (7-14)The EBCDIC control codes in columns .0and 1 and their binary representation areexactly the same as those in the ANSClltable, except for two interchanges: IF /NLwith NAK, and HT with ENQ.4 Characters enclosed in heavy lines areincluded only in the standard 63- and89-character EBCDIC sets.These characters are included only in thestandard 89-character EBCDIC set.STANDARD 7 -BIT COMMUNICATION CODES (ANSCII) 1I.0 0000 NUL OLE1 0001 SOH DCl2 .0.01.0 STX DC23 0011 ETX DC34 .0100 EaT DC45 .0101 ENQ NAK'0,0 6 .011.0 ACK SYNCau 7 .0111 BEL ETB'cOJViMost Significant DigitsDecimal.0 1"rows) (col's.)-2 3 4 5 6 71Binary xOOD xOOI xQ1D xDll xl00 x101 xllQ xll18 1000 BS CAN0 9 1001 HT EMQI....J10 1.010LFNlSUB11 1.011 VT ESC12 1100 FF FS13 11.01 CR GS14 111.0 SO RS15 1111 SI US,1\SP .0 @I 5 1 A2 B,II3 CS 4 0% 5 E& 6 FI7 G( 8 H) 9 I* : J+ i K; < L- = M> N/ ? a.P\QRSTUVWXYZabcdefghij[ k\ I] m~" n" '0-PqrstuvwxYz1II~-"DEL,1 Most signifioont bit, odded for 8-bit format, is either .0 or even parity.Columns .0-1 are control codes.Columns 2-5 correspond to the 64-character ANSCII set.Columns 2-7 correspond to the 95-character ANSCII set.On many current teletypes, the symbolis(5-i4iis (5-15)is ESC or ALTMODE control (7-14)and none of the symbols appearing in columns 6-7 are provided. Except for the threesymbol differences noted above, therefore, such teletypes provide all the characters inthe 64-character ANSCII set. (The Xerox 7.015 Remote Keybaard Printer provides the64-character ANSCII set also, but prints A as 1\.)174 Appendix A
0-9-STANDARD SYMBOL-CODE CORRESPONDENCESEBCDICtHex. Dec. Symbol Card Code ANScn tt Meaning Remarks00 0 NUL 12-0-9-8-1 0-0 null 00 thro~h 23 and 2F are control codes.01 1 SOH 12-9-1 0-1 start of header02 2 STX 12-9-2 0-2 start of text03 3 ETX 12-9-3 0-3 end of text04 4 EOT 12-9-4 0-4 end of transmission05 5 HT 12-9-5 0-9 horizontal tab06 6 ACK 12-9-6 0-6 acknowledge (positive)07 7 BEL 12-9-7 0-7 bell08 8 BSorEOM 12-9-8 0-8 backspace or end of message09 9 ENQ 12-9-8-1 0-5 enquiryOA 10 NAK 12-9-8-2 1-5 negative acknowledgeOB 11 VT 12-9-8-3 0-11 vertical tabOC 12 FF 12-9-8-4 0-12 fonn feedOD 13 CR 12-9-8-5 0-13 carriage returnOE 14 SO 12-9-8-6 0-14 shift outOF 15 SI 12-9-8-7 0-15 shift in10 16 DLE 12-11-9-8-1 1-0 data link escape11 17 DCl 11-9-1 1-1 device control 112 18 DC2 11-9-2 1-2 device control 213 19 DC3 11-9-3 1-3 device control 314 20 DC4 11-9-4 1-4 device control 415 21 LF or NL 11-9-5 0-10 line feed or new line16 22 SYN 11-9-6 1-6 sync17 23 ETB 11-9-7 1-7 end of transmission block18 24 CAN 11-9-8 1-8 cancel19 25 EM 11-9-8-1 1-9 end of mediumlA 26 SUB 11-9-8-2 1-10 substitute Replaces characters with parity error.lB 27 ESC 11-9-8-3 1-11 escape1C 28 FS 11-9-8-4 1-12 fi Ie separatorlD 29 GS 11-9-8-5 1-13 group separatorIE 30 RS 11-9-8-6 1-14 record separatorIF 31 US 11-9-8-7 1-15 unit separator20 32 ds 11-0-9-8-1 digit selector 20 through 23 are used with21 33 ~~ ~ ...:--:&:----- -"---j,oiII.~t" ••--••-'W OIIIIYI.E:I"\TT DVTE: ('TDT"I~ IE:D(,\......... a ......... ..,In.al ... "" , .....,. .... ,22 34 fs 0-9-2 field separation instruction - not input/output con-23 35 si 0-9-3 immediate significance start trol codes.24 36 0-9-4 24 through 2E are unassigned.25 37 0-9-526 38 0-9-627 39 0-9-728 40 0-9-829 41 0-9-8-12A 42 0-9-8-22B 43 0-9-8-32C 44 0-9-8-42D 45 0-9-8-52E 46 0-9-8-62F 47 0-9-8-730 48 12-11-0-9-8-1 30 through 3F are unassigned.31 49 9-132 50 9-233 51 9-334 52 9-435 53 9-536 54 9-637 55 9-738 56 9-839 57 9-8-13A 58 9-8-23B 59 9-8-33C 60 9-8-43D 61 9-8-53E 62 9-8-63F 63 9-8-7tHexadecimal and decimal notation.ttDecimal notation {column-row}.Appendix A 175
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Xerox 560 ComputerReference Manual9
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4. INPUT/OUTPUT OPERA TIO NS 142 AG
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1. XEROX 560 COMPUTER SYSTEMINTRODU
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Many operations are performed in fl
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Rapid Context Switching. When respo
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2. SYSTEM ORGANIZATIONThe elements
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FAST MEMORYARITHMETIC AND CONTROL U
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INFORMATION BOUNDARIESBasic process
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(Maximumof eight)Core Core Core Cor
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3. Diagnostic logic. Each memory dr
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eference address field of the instr
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Instruction in memory:Instruction i
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Real-extended addressing is specifi
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Table 1. Basic Processor Operating
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DesignationFunctionDesignationFunct
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InterruptStateDisarmedArmed[$Waitin
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AddressTable 2. Interrupt Locations
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is assumed to contain an XPSD or a
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Table 3. Summary of Trap LocationsL
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TRAP MASKSThe programmer may mask t
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PUSH-DOWN STACK LIMIT TRAPPush-down
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Instruction Name Mnemonic FaultDeci
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subroutine. However, with certain c
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3. INSTRUCTION REPERTOIREThis chapt
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CC1 is unchanged by the instruction
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Condition code settings:2 3 4 Resul
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Example 2, odd R field value:Before
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significance (FS), floating zero (F
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next sequential register after regi
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R 1 R2 R3 MeaningoThe effective vir
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MIMULTIPLY IMMEDIATE(Immediate oper
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original contents of register R, re
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Instruction NameCompare HalfwordMne
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2 3 4 Result of ShiftCircular Shift
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4. At the completion of the left sh
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Instruction NameFloating Subtract L
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The following table shows the possi
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Table 8.Condition Code Settings for
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PACKED DECIMAL NUMBERSAll decimal a
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DSTDECIMAL STORE(Byte index alignme
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If no indirect addressing or indexi
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Instruction NameMnemonicDesignation
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Both byte strings are C bytes in le
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of the destination byte that caused
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again present, unti I a positive or
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The new contents of register 7 are:
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traps to location X'42 1 as a resul
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If there is sufficient space in the
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If CC1, or CC3, or both CC1 and CC3
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appropriate memory stack locations
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II, EI) are generated by II ORing"
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In the real extended addressing mod
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CAll INSTRUCTIONSEach ofthe four CA
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The XPSD instruction' is used for t
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If (I)1O = 0, trap or interrupt ins
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For either memory map format and ei
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initial value plus the initial valu
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Table 9. Status Word 0Field Bits Co
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READ INTERRUPT INHIBITSThe followin
Page 129 and 130: Table 11.Read Direct Mode 9 Status
Page 131 and 132: SET ALARM INDICATORThe following co
Page 133 and 134: INPUT jOUTPUT INSTRUCTIONSThe I/o i
Page 135 and 136: Table 13.Description of I/o Instruc
Page 137 and 138: Table 15.Device Status Byte (Regist
Page 139 and 140: Table 16. Operational Status Byte (
Page 141 and 142: Table 19.Status Response Bits for A
Page 143 and 144: If CC4 = 0, the MIOP is in a normal
Page 145 and 146: 2 3 4 Meaningo 0 I/o address not re
Page 147 and 148: The functions of bits within the DC
Page 149 and 150: 4. Each unit-record controller (int
Page 151 and 152: Interrupt at Channel End (Bit Posit
Page 153 and 154: Transfer in Channel. A control lOCO
Page 155 and 156: Otherwise, the first word of the ne
Page 157 and 158: Depending upon the characteristics
Page 159 and 160: change the rate on the primary cons
Page 161 and 162: Location(hex) (dec)20 3221 3322 342
Page 163 and 164: Table 22.Diagnostic Control (P-Mode
Page 165 and 166: at its normal rate (e. g., fixed du
Page 167 and 168: SET LOW CLOCK MARGINSThis command c
Page 169 and 170: BP STATUS AND NO.Th i s group of i
Page 171 and 172: Input5MPri ntout5MFunctionStore X 1
Page 173 and 174: 6. SYSTEM CONFIGURATION CONTROLPool
Page 175 and 176: Table 25. Functions of Processor Cl
Page 177: Table 26. Functions of Memory Unit
Page 182 and 183: STANDARD SYMBOL-CODE CORRESPONDENCE
Page 184 and 185: STANDARD SYMBOL-CODE CORRESPONDENCE
Page 186 and 187: TABLE OF POWERS OF SIXTEEN II162564
Page 188 and 189: HEXADECIMAL-DECIMAL INTEGER CONVERS
Page 194 and 195: HEXADECIMAL-DECIMAL FRACTION CONVER
Page 196 and 197: HEXADECIMAL-DECIMAL FRACTION CONVER
Page 198 and 199: APPENDIX B.GLOSSARY OF SYMBOLIC TER
Page 200 and 201: TermMeaningTermMeaningWKxWrite key
Page 202 and 203: Table C-2. Memory Unit Status Regis
Page 204 and 205: Y OYf'lV r'f'lrnf'lrtil"\n'''' ....
Page 206: 701 South Aviation BoulevardEI Segu
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