JPS57162032A - Advance controlling system - Google Patents

Advance controlling system

Info

Publication number
JPS57162032A
JPS57162032A JP4748281A JP4748281A JPS57162032A JP S57162032 A JPS57162032 A JP S57162032A JP 4748281 A JP4748281 A JP 4748281A JP 4748281 A JP4748281 A JP 4748281A JP S57162032 A JPS57162032 A JP S57162032A
Authority
JP
Japan
Prior art keywords
instruction
address
ibr1
pointers
indicating
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.)
Granted
Application number
JP4748281A
Other languages
Japanese (ja)
Other versions
JPH0315771B2 (en
Inventor
Yoshihiro Mizushima
Kazuyuki Shimizu
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP4748281A priority Critical patent/JPS57162032A/en
Publication of JPS57162032A publication Critical patent/JPS57162032A/en
Publication of JPH0315771B2 publication Critical patent/JPH0315771B2/ja
Granted 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
    • G06F9/38—Concurrent instruction execution, e.g. pipeline, look ahead
    • G06F9/3802—Instruction prefetching

Abstract

PURPOSE:To execute an instruction at a high speed, by providing a pointer indicating from which position of an instruction buffer register the instruction is read out, and deriving an address of the instruction from value of the register indicating the advance instruction address, and an indicated position of the pointer. CONSTITUTION:A pipeline control computer is constituted by providing plural instruction buffer registers LBR1-IBR3, and each buffer IBR1-IBR3 is constituted of a prescribed byte. In accordance with said each byte, indicating pointers NSIP 0-3, 4-7 and 8-11 of 1 bit unit are provided. These pointers NSIP 0-11 are inputted to a selecting circuit SEC, and outputs of the buffers IBR1-3 are controlled. Subsequently, from a value of an advance instruction address of the buffers IBR1-3, and an indicated position of the pointers NSIP0-3-NSIP8-11, an address of an instruction is derived by the circuit SEC, generation of linkage information is quickened, and an execution cycle of a branch linkage instruction to a pipeline pL is shortened.
JP4748281A 1981-03-31 1981-03-31 Advance controlling system Granted JPS57162032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4748281A JPS57162032A (en) 1981-03-31 1981-03-31 Advance controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4748281A JPS57162032A (en) 1981-03-31 1981-03-31 Advance controlling system

Publications (2)

Publication Number Publication Date
JPS57162032A true JPS57162032A (en) 1982-10-05
JPH0315771B2 JPH0315771B2 (en) 1991-03-01

Family

ID=12776343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4748281A Granted JPS57162032A (en) 1981-03-31 1981-03-31 Advance controlling system

Country Status (1)

Country Link
JP (1) JPS57162032A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5576446A (en) * 1978-12-06 1980-06-09 Toshiba Corp Pre-fetch control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5576446A (en) * 1978-12-06 1980-06-09 Toshiba Corp Pre-fetch control system

Also Published As

Publication number Publication date
JPH0315771B2 (en) 1991-03-01

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