GB1233270A - - Google Patents

Info

Publication number
GB1233270A
GB1233270A GB1233270DA GB1233270A GB 1233270 A GB1233270 A GB 1233270A GB 1233270D A GB1233270D A GB 1233270DA GB 1233270 A GB1233270 A GB 1233270A
Authority
GB
United Kingdom
Prior art keywords
programme
instruction
programmes
address register
temporary registers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1233270A publication Critical patent/GB1233270A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30098—Register arrangements
    • G06F9/3012—Organisation of register space, e.g. banked or distributed register file
    • G06F9/30123—Organisation of register space, e.g. banked or distributed register file according to context, e.g. thread buffers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30181—Instruction operation extension or modification
    • G06F9/30185—Instruction operation extension or modification according to one or more bits in the instruction, e.g. prefix, sub-opcode
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/30181—Instruction operation extension or modification
    • G06F9/30189—Instruction operation extension or modification according to execution mode, e.g. mode flag
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/32—Address formation of the next instruction, e.g. by incrementing the instruction counter
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/461—Saving or restoring of program or task context
    • G06F9/462—Saving or restoring of program or task context with multiple register sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Calculators And Similar Devices (AREA)

Abstract

1,233,270. Digital computers. INTERNATIONAL BUSINESS MACHINES CORP. 19 Aug., 1968 [5 Sept., 1967], No. 39594/68. Heading G4A. In a stored-programme electronic digital computer arranged to execute a plurality of programmes concurrently, the temporary registers in which data used and generated during the execution of the programmes is held are comprised only of storage locations in main store, a set of such locations being allotted to each programme and being accessed by combining the contents of an address register with a number forming part of an instruction of a programme, whereby the dumping of temporary registers upon interruption of a programme is obviated. A bit in the instruction permits zero to be used in place of the address register contents so that a set of temporary registers can be shared between different programmes (or programme segments). The address register contents can be changed by a so-called SKIP instruction which may also contain the start address of a new programme. The SKIP instruction may be used only when an interrupt occurs or when a new programme (or programme segment) is entered. Selective address indexing is also provided.
GB1233270D 1967-09-05 1968-08-19 Expired GB1233270A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8687A FR1543371A (en) 1967-09-05 1967-09-05 Provisions relating to the work unit of a computer

Publications (1)

Publication Number Publication Date
GB1233270A true GB1233270A (en) 1971-05-26

Family

ID=8573476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1233270D Expired GB1233270A (en) 1967-09-05 1968-08-19

Country Status (2)

Country Link
FR (1) FR1543371A (en)
GB (1) GB1233270A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199173A2 (en) * 1985-04-08 1986-10-29 Hitachi, Ltd. Data processing system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199173A2 (en) * 1985-04-08 1986-10-29 Hitachi, Ltd. Data processing system
EP0199173A3 (en) * 1985-04-08 1989-10-25 Hitachi, Ltd. Data processing system
EP0476722A2 (en) * 1985-04-08 1992-03-25 Hitachi, Ltd. Data processing system
EP0476722A3 (en) * 1985-04-08 1992-09-09 Hitachi, Ltd. Data processing system

Also Published As

Publication number Publication date
FR1543371A (en) 1968-10-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee