Level Epsilon Architecture Support Reference Manual

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Data Type Formats Single Precision, ICW (Index Control Word) interpretation 0 0 ICW_width ICW_limit ICW_offset 0 0 tag 0 ICW_width [47:16] The number of units in an element in the sequence ICW_limit [31:16] The number of elements in the sequence ICW_offset [15:16] The offset from the base of the record to the start of the sequence D–2 6878 7530–007
Double Precision, numeric interpretation Data Type Formats 0 0 ms e 1st x mantissa word 1 es p 0 0 0 hi_ 2nd mantissa exp word 1 0 1st word: tag 2 mant_sign [46: 1] Mantissa sign (0=positive, 1=negative) exp_sign [45: 1] Exponent sign (0=positive, 1=negative) exponent [44: 6] The low order 6 bits of the exponent mantissa [38:39] The integral portion of the mantissa 2nd word: hi_order_exp [47: 9] The high order 9 bits of the exponent mantissa [38:39] The fractional portion of the mantissa 6878 7530–007 D–3
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ClearPath Enterprise Servers Level
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Contents Section 1. Introduction Pu
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Contents Numeric-Interpretation Ope
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Contents 6878 7530-007 vii
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Section 1 Introduction Purpose Scop
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Section 2 Process Model This sectio
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Process Model Arrays of 4-bit chara
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Linkages and Addressing Environment
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Protection Process Model The term p
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Addressing Process Model The only a
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Stack and Display Registers Process
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Section 3 Data Structure and Text M
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Data Structure and Text The terms s
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Tag-4 Word and Tag-6 Word Data Stru
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Absolute Store Reference Word (ASRW
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Data Structure and Text The followi
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Virtual Index Data Structure and Te
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Environment Links Data Structure an
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Data Structure and Text User progra
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Entered ENVW (Tag = 3) env_link RCW
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Tag Values Data Structure and Text
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Section 4 Interrupts This section g
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ROI Interrupts ROI is an interrupt
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Restart Configuration Libra 6xx and
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Arithmetic Interrupts Interrupts Se
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Interrupts 2. If the result can be
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Block Exit CVI ROI Repeat EXIT ODI
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The following actions are required
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Interrupts When Stack Overflow chec
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Interrupts • Reindex checks:Index
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Interrupts To cause the operation t
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Scratch Pad Errors (Libra 6xx and 7
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Hardware Error - Lost CVI ROI Abort
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Invalid Address - Lost CVI ROI Abor
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Interrupts An Interval Timer is set
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Interrupts If the IRR indicates oth
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44 (02C) Interval Timer 45 (02D) Em
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Section 5 Operator Set This section
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Interrupts and Resumption Operator
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Operator Set Some operators, not ot
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Operator Set Final stack items are
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Operator Set For p=13, d=0, q=2, e=
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Rounding Function R Operator Set A
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Magnitude Round-to-Integer Function
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Truncation Function T Operator Set
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Normalization Function N Operator S
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Numeric-Interpretation Operators Op
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MULX Operator Set MULX requires tw
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AMIN and AMAX Operator Set AMIN an
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Operator Set If RaI(x) equals TooBi
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Binary-to-Decimal Conversion Operat
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CVS2 Operator Set The input argume
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any(bit-vector) Top-of-stack t
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Top-of-stack TOS: opnd TOS
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LOG2 Operator Set LOG2 requires on
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ISOL Operator Set ISOL creates a s
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DFTR Operator Set DFTR sets a fiel
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Reference Generation and Evaluation
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PCW Evaluation Operator Set In the
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LNMC Operator Set LNMC is equivale
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Operator Set Valid representations
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MPCW Operator Set MPCW is a litera
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Operator Set If the argument is an
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Operator Set For most clients, aFOP
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The delta portion of the address co
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EVAL Operator Set The purpose of E
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Operator Set If the Initial Referen
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Operator Set STON deletes the Initi
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Operator Set ref: SIRW, IDD, AS
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Processor State Operators Operator
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DBUN A branch destination argument
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Operator Set TOS TOS:
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Procedure Exit Operators Operator S
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Assertion Operators Operator Set Th
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RSDN Operator Set RSDN requires th
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Data Array Operators Operator Set O
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BMS Operator Set BMS is a variatio
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Operator Set For word-transfer oper
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Operator Set D
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TUNU len: opnd(integer) Top
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Transfer Operators Operator Set Cha
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The following operators terminate w
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Operator Set WordIndex and BitIndex
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Character Translate Operator Operat
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Operator Set There are three groups
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Unpack-Unsigned Operators Operator
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Operator Set If the source digit se
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Operator Set The edit table must be
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EXSU Operator Set len: opnd(int
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Character Insert Operators Operator
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MVNU Operator Set For an EBCDIC so
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Operator Set With an IndexedWordDD,
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Vector Assignment Operators Operato
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S stride_B stride_A
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Reduction Operators Linear Sum Thes
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Z stride_B stride_A
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Operator Set The purpose of the SUM
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Miscellaneous Operators NOOP No ac
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Section 6 Restricted Operators The
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Restricted Operators WASD overwrite
Page 201 and 202: REXI The restricted operator REXI
Page 203 and 204: WATI Restricted Operators The rest
Page 205 and 206: IDLE Restricted Operators The rest
Page 207 and 208: Restricted Platform Operators Restr
Page 209 and 210: Restricted Operators When software
Page 211 and 212: Restricted Operators WEMW (Libra 6
Page 213 and 214: Local ID Register (LID) [read only,
Page 215 and 216: Restricted Operators Both Server Co
Page 217 and 218: Register Name Register ID Read/Writ
Page 219 and 220: 6. Adds the last saved TOD counter
Page 221 and 222: Run Timer Restricted Operators The
Page 223 and 224: WIPS State Identifier High NCB Memo
Page 225 and 226: SASP Restricted Operators SASP ins
Page 227 and 228: Appendix A Alphabetical Operator Co
Page 229 and 230: Mnemonic Operator Name Hex Operator
Page 231 and 232: Mnemonic Operator Name Hex Operator
Page 233 and 234: Mnemonic Operator Name Hex NTGD Int
Page 235 and 236: Mnemonic Operator Name Hex SE8C Set
Page 237 and 238: Mnemonic Operator Name Hex SUM Summ
Page 239 and 240: Mnemonic Operator Name Hex USNU Unp
Page 241 and 242: Appendix B Boolean Accumulator X-Re
Page 243 and 244: TFFF, OFFF, and EXTF FLTF saved in
Page 245 and 246: Appendix C Operator Encoding The pr
Page 247 and 248: Primary encodings are 00-3F are VAL
Page 249 and 250: Variant encodings 00-2F are undefin
Page 251: Appendix D Data Type Formats Throug
Page 255 and 256: tag 8 Data Type Formats segment_typ
Page 257 and 258: Untouched DD Data Type Formats
Page 259 and 260: IndexedCharDD (Indexed Character Da
Page 261 and 262: Stuffed Indirect Reference Word (SI
Page 263 and 264: action_valid [12: 1] Action_status
Page 265 and 266: Tag-4 Word and Tag-6 Word Data Type
Page 267 and 268: Return Control Word (RCW) Data Type
Page 269 and 270: Absolute Store Reference Word (ASRW
Page 271 and 272: Appendix E Processor Features Opera
Page 273 and 274: Appendix F Operator and Common Acti
Page 275 and 276: aACCE Operator and Common Action R
Page 277 and 278: Operator and Common Action Referenc
Page 279 and 280: aEVCH Operator and Common Action R
Page 281 and 282: aPOAV Operator and Common Action R
Page 283 and 284: aPRCW Operator and Common Action R
Page 285 and 286: Clients: CHEK: validate vector_A:I1
Page 287 and 288: BRFL Operator and Common Action Re
Page 289 and 290: CPVN Operator and Common Action Re
Page 291 and 292: DLET Operator and Common Action Re
Page 293 and 294: EXSD p D2 also represents EXSU See
Page 295 and 296: ICLD Operator and Common Action Re
Page 297 and 298: Operator and Common Action Referenc
Page 299 and 300: MPWL p F6 also represents MPWP See
Page 301 and 302: NTTD v 9586 Int Overflow: TId(x) =
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POLY v 95C7 See aAPIX: current vec
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RSQR v 9550 Inv Arg/Par: x (TOS) n
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SESW v 95A2 also represents SEDW O
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SNGT p CC See aAPIX: IDD argument
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SUBT p 81 Operator and Common Acti
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TLED Operator and Common Action Re
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UPLD Operator and Common Action Re
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VPS v 95EB See aAPIX: current vect
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VUV v 95EA See aAPIX: current vect
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Appendix G Interupt Reference This
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Bounds Error CVI 18 (12) ODI aAPIX:
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Invalid Address - Here CVI 15 (0F)
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or TOS is operand and TOS2 in {SIRW
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Non-maskable External CVI 27 (1B) S
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Undefined Operator CVI 23 (17) ODI
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Vector Arithmetic Exception OVI 2 O
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Index A aACCE , 5-70, F-3 aAPIX , 5
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TGTD, 5-87 TGTU, 5-87 TLED, 5-87 TL
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CPVN, 5-111 CPVS, 5-112 VMV, 5-112
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ICLD, 5-98 ICRD, 5-98 ICUD, 5-98 IN
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NOWR , 5-51, A-6, F-28 NTGD , 5-26,
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Program Word Index (PWI), 2-11 Prog
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SEXT , 6-30, A-9, F-35 SFDC , 5-104
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TUND , 5-84, A-12, F-41 TUNU , 5-85
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© 2012 Unisys Corporation. All rig
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