JPS6461823A - Logical information processor - Google Patents

Logical information processor

Info

Publication number
JPS6461823A
JPS6461823A JP21632187A JP21632187A JPS6461823A JP S6461823 A JPS6461823 A JP S6461823A JP 21632187 A JP21632187 A JP 21632187A JP 21632187 A JP21632187 A JP 21632187A JP S6461823 A JPS6461823 A JP S6461823A
Authority
JP
Japan
Prior art keywords
data
tags
arithmetic
bits
tag
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
JP21632187A
Other languages
Japanese (ja)
Inventor
Toshio Okamoto
Mitsuo Saito
Kenichi Maeda
Takeshi Aikawa
Mitsuyoshi Okamura
Tsukasa Matoba
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP21632187A priority Critical patent/JPS6461823A/en
Publication of JPS6461823A publication Critical patent/JPS6461823A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To realize a high-speed arithmetic operation to the data including the data with tags and the data with no tag by storing the tag into a lower bit for the purpose of expression of the data with tags that shows the attribute of the data. CONSTITUTION:In a data format one word is shown in 32 bits and the tags set at the lower two bits. In the case of an arithmetic operation with tags, a signal line 702 led from an MPC shows 1 and a mask circuit words to mask the signals of bits 0 and 1 serving as the tag parts of signals lines 901 and 902 of the input data. The data on other bits are supplied as they are to an arithmetic part and the bit '0' and '1' of an output signal 903 calculated by the arithmetic part are supplied to a switch circuit. While in an arithmetic operation with no tag, the mask circuit does not work since the line 702 is set to '0' and an input signal is supplied as it is to the arithmetic part. Thus the arithmetic operations are carried out by the same arithmetic unit at a high speed by setting the tags at the lower positions of the data.
JP21632187A 1987-09-01 1987-09-01 Logical information processor Pending JPS6461823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21632187A JPS6461823A (en) 1987-09-01 1987-09-01 Logical information processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21632187A JPS6461823A (en) 1987-09-01 1987-09-01 Logical information processor

Publications (1)

Publication Number Publication Date
JPS6461823A true JPS6461823A (en) 1989-03-08

Family

ID=16686697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21632187A Pending JPS6461823A (en) 1987-09-01 1987-09-01 Logical information processor

Country Status (1)

Country Link
JP (1) JPS6461823A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365186A2 (en) * 1988-10-19 1990-04-25 Hewlett-Packard Company Apparatus for enhanced tagged data processing in a generalized computer execution unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629440A (en) * 1985-07-08 1987-01-17 Hitachi Ltd Data processor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629440A (en) * 1985-07-08 1987-01-17 Hitachi Ltd Data processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365186A2 (en) * 1988-10-19 1990-04-25 Hewlett-Packard Company Apparatus for enhanced tagged data processing in a generalized computer execution unit

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