GB1038710A - Data processing systems - Google Patents

Data processing systems

Info

Publication number
GB1038710A
GB1038710A GB1398164A GB1398164A GB1038710A GB 1038710 A GB1038710 A GB 1038710A GB 1398164 A GB1398164 A GB 1398164A GB 1398164 A GB1398164 A GB 1398164A GB 1038710 A GB1038710 A GB 1038710A
Authority
GB
United Kingdom
Prior art keywords
instruction
micro
macro
address
microprogramme
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
GB1398164A
Inventor
Antony Peacock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 by International Business Machines Corp filed Critical International Business Machines Corp
Priority to GB1398164A priority Critical patent/GB1038710A/en
Priority to FR11497A priority patent/FR1439980A/en
Priority to DEP1270A priority patent/DE1270305B/en
Priority to FR41656A priority patent/FR89768E/en
Publication of GB1038710A publication Critical patent/GB1038710A/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
    • G06F9/22—Microcontrol or microprogram arrangements
    • G06F9/26—Address formation of the next micro-instruction ; Microprogram storage or retrieval arrangements
    • G06F9/262—Arrangements for next microinstruction selection
    • G06F9/268—Microinstruction selection not based on processing results, e.g. interrupt, patch, first cycle store, diagnostic programs

Abstract

1,038,710. Microprogramme-controlled computers. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 26, 1965 [April 4, 1964], No. 13981/64. Heading G4A. In a micro-programme controlled computer, the operation code of a macro-instruction is decoded to access a first micro-instruction and the address of a further micro-instruction is obtained from information in the macro-instruction, the further micro-instruction assuming control of the computer after the first micro-instruction or a sub-routine initiated thereby has been executed. Said first micro-instruction causes the address of the further micro-instruction to be calculated by adding the contents of an index location specified by the macro-instruction to an increment field in the macro-instruction. The macro-instruction also includes bits to set control latches (no details). The macro-instruction is called a DIAGNOSE instruction and said further micro-instruction initiates a sequence of micro-instructions which ends when the first micro-instruction of a " fetch next macro-instruction " routine is encountered, or alternatively can end when a particular address is reached in the micro-programme store or after a predetermined number of microinstructions have been executed, a counter being decremented to zero in the latter case. In other macro-instructions, the instruction may specify, operation (decoded to get the first micro-instruction), one operand and the address (as above) of the other operand. The microprogramme read-only store may be as in Specification 985,347 which is referred to.
GB1398164A 1964-04-04 1964-04-04 Data processing systems Expired GB1038710A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1398164A GB1038710A (en) 1964-04-04 1964-04-04 Data processing systems
FR11497A FR1439980A (en) 1964-04-04 1965-04-01 Data processing system
DEP1270A DE1270305B (en) 1964-04-04 1965-04-02 Microprogram-controlled data processing system
FR41656A FR89768E (en) 1964-04-04 1965-12-10 Data processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1398164A GB1038710A (en) 1964-04-04 1964-04-04 Data processing systems

Publications (1)

Publication Number Publication Date
GB1038710A true GB1038710A (en) 1966-08-10

Family

ID=10032873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1398164A Expired GB1038710A (en) 1964-04-04 1964-04-04 Data processing systems

Country Status (3)

Country Link
DE (1) DE1270305B (en)
FR (1) FR1439980A (en)
GB (1) GB1038710A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603936A (en) * 1969-12-08 1971-09-07 Ibm Microprogrammed data processing system
GB2138182A (en) * 1983-04-14 1984-10-17 Standard Telephones Cables Ltd Digital processor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079451A (en) * 1976-04-07 1978-03-14 Honeywell Information Systems Inc. Word, byte and bit indexed addressing in a data processing system
DE2846537C2 (en) * 1978-10-26 1986-09-18 Standard Elektrik Lorenz Ag, 7000 Stuttgart Micro-programmed data processing equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603936A (en) * 1969-12-08 1971-09-07 Ibm Microprogrammed data processing system
GB2138182A (en) * 1983-04-14 1984-10-17 Standard Telephones Cables Ltd Digital processor

Also Published As

Publication number Publication date
FR1439980A (en) 1966-05-27
DE1270305B (en) 1968-06-12

Similar Documents

Publication Publication Date Title
US3930232A (en) Format insensitive digital computer
US4130867A (en) Database instruction apparatus for determining a database record type
US3599176A (en) Microprogrammed data processing system utilizing improved storage addressing means
US4044334A (en) Database instruction unload
US4084224A (en) System of controlling procedure execution using process control blocks
US4297743A (en) Call and stack mechanism for procedures executing in different rings
US4095278A (en) Instruction altering system
US4179731A (en) Microprogrammed control system
US4025901A (en) Database instruction find owner
US4498132A (en) Data processing system using object-based information and a protection scheme for determining access rights to such information and using multilevel microcode techniques
US3539996A (en) Data processing machine function indicator
GB1108802A (en) Improvements relating to program controlled electronic data processing systems
EP0096576A2 (en) Mechanism for creating dependency free code for multiple processing elements
US4024508A (en) Database instruction find serial
GB1343454A (en) Multiprogramming data processing apparatus and equipment for use therein
GB1077343A (en) Stored program data processing apparatus
GB1496780A (en) Microprogrammed processor
GB1111046A (en) Data processing system
US4042912A (en) Database set condition test instruction
GB1108807A (en) Improvements in or relating to data processing systems
US4241396A (en) Tagged pointer handling apparatus
US3735355A (en) Digital processor having variable length addressing
GB1443064A (en) Microprogramme unit for a data processor
GB1061546A (en) Instruction and operand processing
EP0010197B1 (en) Data processing system for interfacing a main store with a control sectron and a data processing section