JPS57114949A - Data processor - Google Patents

Data processor

Info

Publication number
JPS57114949A
JPS57114949A JP1581A JP1581A JPS57114949A JP S57114949 A JPS57114949 A JP S57114949A JP 1581 A JP1581 A JP 1581A JP 1581 A JP1581 A JP 1581A JP S57114949 A JPS57114949 A JP S57114949A
Authority
JP
Japan
Prior art keywords
register
instruction
registers
address calculation
opf
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.)
Pending
Application number
JP1581A
Other languages
Japanese (ja)
Inventor
Shuichi Hanatani
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1581A priority Critical patent/JPS57114949A/en
Publication of JPS57114949A publication Critical patent/JPS57114949A/en
Pending 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 or look ahead
    • G06F9/3867—Concurrent instruction execution, e.g. pipeline or look ahead using instruction pipelines

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Advance Control (AREA)

Abstract

PURPOSE:To eliminate the wait of confirmation of an excessive register and to increase the performance by detecting a number of conventional register not confirmed yet and making address calculation, when the operand fetch instruction command of the next instruction is outputted. CONSTITUTION:When an instruction stored in an instruction register 1 changes a plurality of registers of a conventional register group, and when the address of the operand fetch OPF of stored instruction in the register 1 is calculated, a number of conventional register not confirmed for the content yet is calculated at confirmation waiting register detection circuits 8-10, and stored to confirmation waiting register number storage registers 11-13. After a conventional register number used for the address calculation of the OPF of the next instruction is confirmed in the register 1, coincidence circuits 14-16 detect with which content of the registers 11-13 the address calculation register designation filed is coincident, and effective flags A-C provided according to the registers 11-13 are referenced for the presence of the necessity of confirmation waiting and the address calculation of the OPF of the next instruction is instructed.
JP1581A 1981-01-05 1981-01-05 Data processor Pending JPS57114949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1581A JPS57114949A (en) 1981-01-05 1981-01-05 Data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1581A JPS57114949A (en) 1981-01-05 1981-01-05 Data processor

Publications (1)

Publication Number Publication Date
JPS57114949A true JPS57114949A (en) 1982-07-17

Family

ID=11462602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1581A Pending JPS57114949A (en) 1981-01-05 1981-01-05 Data processor

Country Status (1)

Country Link
JP (1) JPS57114949A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61188628A (en) * 1985-02-16 1986-08-22 Nec Corp Instruction processing and controller system in information processor
JPS62194544A (en) * 1986-02-20 1987-08-27 Nec Corp Instruction pre-read control system
JPS6336336A (en) * 1986-07-30 1988-02-17 Nec Corp Information processor
JPS63142431A (en) * 1986-12-05 1988-06-14 Toshiba Corp Pipeline control system
JPH01183737A (en) * 1988-01-18 1989-07-21 Toshiba Corp Information processor
JPH01229326A (en) * 1988-03-09 1989-09-13 Toshiba Corp Information processor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114338A (en) * 1973-02-28 1974-10-31
JPS5112225A (en) * 1974-07-12 1976-01-30 Signode Corp
JPS5318931A (en) * 1976-08-06 1978-02-21 Hitachi Ltd Information processor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114338A (en) * 1973-02-28 1974-10-31
JPS5112225A (en) * 1974-07-12 1976-01-30 Signode Corp
JPS5318931A (en) * 1976-08-06 1978-02-21 Hitachi Ltd Information processor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61188628A (en) * 1985-02-16 1986-08-22 Nec Corp Instruction processing and controller system in information processor
JPS62194544A (en) * 1986-02-20 1987-08-27 Nec Corp Instruction pre-read control system
JPS6336336A (en) * 1986-07-30 1988-02-17 Nec Corp Information processor
JPS63142431A (en) * 1986-12-05 1988-06-14 Toshiba Corp Pipeline control system
JPH01183737A (en) * 1988-01-18 1989-07-21 Toshiba Corp Information processor
JPH01229326A (en) * 1988-03-09 1989-09-13 Toshiba Corp Information processor

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