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JPS5487130A - Conventional register access system - Google Patents

Conventional register access system

Info

Publication number
JPS5487130A
JPS5487130A JP15511777A JP15511777A JPS5487130A JP S5487130 A JPS5487130 A JP S5487130A JP 15511777 A JP15511777 A JP 15511777A JP 15511777 A JP15511777 A JP 15511777A JP S5487130 A JPS5487130 A JP S5487130A
Authority
JP
Japan
Prior art keywords
circuit
data
registers
conventional register
register group
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
JP15511777A
Other languages
Japanese (ja)
Other versions
JPS5935451B2 (en
Inventor
Taketoyo Sawada
Akio Hanada
Teruyoshi Mita
Fumio Hoshi
Masao Sato
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 JP52155117A priority Critical patent/JPS5935451B2/en
Publication of JPS5487130A publication Critical patent/JPS5487130A/en
Publication of JPS5935451B2 publication Critical patent/JPS5935451B2/en
Expired legal-status Critical Current

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  • Executing Machine-Instructions (AREA)

Abstract

PURPOSE: To remarkably reduce the instruction execution time, by providing duplicated selection circuit between conventional register group and operation circuit, selecting registers, and feeding data to the operation circuit from the register after being read out.
CONSTITUTION: Operation is made by inputting the data of two conventional registers in a plurality of conventional registers 11 to the operation circuit 1. In this case, the selector circuit 12 duplicated is provided between the conventional register group 11 and the circuit 13, and registers are selected from the conventional register group 11 by taking the interrupt program level as the address information. The data is made in readout state from the selected register, and the readout data is fed to the circuit 13 after selecting the data with the circuit 12. Thus, the instruction execution time can remarkably be reduced.
COPYRIGHT: (C)1979,JPO&Japio
JP52155117A 1977-12-23 1977-12-23 General purpose register access method Expired JPS5935451B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52155117A JPS5935451B2 (en) 1977-12-23 1977-12-23 General purpose register access method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52155117A JPS5935451B2 (en) 1977-12-23 1977-12-23 General purpose register access method

Publications (2)

Publication Number Publication Date
JPS5487130A true JPS5487130A (en) 1979-07-11
JPS5935451B2 JPS5935451B2 (en) 1984-08-29

Family

ID=15598942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52155117A Expired JPS5935451B2 (en) 1977-12-23 1977-12-23 General purpose register access method

Country Status (1)

Country Link
JP (1) JPS5935451B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57150043A (en) * 1981-03-11 1982-09-16 Hitachi Ltd Information processor
JPS5998250A (en) * 1982-11-26 1984-06-06 Fujitsu Ltd Microprogram control system
JPS60134938A (en) * 1983-12-23 1985-07-18 Nec Corp Register file reading system
JPS60134940A (en) * 1983-12-23 1985-07-18 Hitachi Ltd Register selecting system of information processing device
JPS60138640A (en) * 1983-12-27 1985-07-23 Nec Corp Writing system of register file
JPH02144630A (en) * 1988-11-25 1990-06-04 Nec Corp Data processor
JPH0363826A (en) * 1989-05-04 1991-03-19 Texas Instr Inc <Ti> Data processor
JP2010128392A (en) * 2008-11-28 2010-06-10 Canon Inc Hash processing apparatus and hash processing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57150043A (en) * 1981-03-11 1982-09-16 Hitachi Ltd Information processor
JPS5998250A (en) * 1982-11-26 1984-06-06 Fujitsu Ltd Microprogram control system
JPH0317134B2 (en) * 1982-11-26 1991-03-07 Fujitsu Ltd
JPS60134938A (en) * 1983-12-23 1985-07-18 Nec Corp Register file reading system
JPS60134940A (en) * 1983-12-23 1985-07-18 Hitachi Ltd Register selecting system of information processing device
JPS60138640A (en) * 1983-12-27 1985-07-23 Nec Corp Writing system of register file
JPH02144630A (en) * 1988-11-25 1990-06-04 Nec Corp Data processor
JPH0363826A (en) * 1989-05-04 1991-03-19 Texas Instr Inc <Ti> Data processor
JP2010128392A (en) * 2008-11-28 2010-06-10 Canon Inc Hash processing apparatus and hash processing method

Also Published As

Publication number Publication date
JPS5935451B2 (en) 1984-08-29

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