JPS55121541A - Arithmetic unit - Google Patents

Arithmetic unit

Info

Publication number
JPS55121541A
JPS55121541A JP2808379A JP2808379A JPS55121541A JP S55121541 A JPS55121541 A JP S55121541A JP 2808379 A JP2808379 A JP 2808379A JP 2808379 A JP2808379 A JP 2808379A JP S55121541 A JPS55121541 A JP S55121541A
Authority
JP
Japan
Prior art keywords
address
circuit
buffer
column
control part
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
JP2808379A
Other languages
Japanese (ja)
Other versions
JPS626253B2 (en
Inventor
Kunio Yasutake
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP2808379A priority Critical patent/JPS55121541A/en
Publication of JPS55121541A publication Critical patent/JPS55121541A/en
Publication of JPS626253B2 publication Critical patent/JPS626253B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To eliminate the need for a column-address counter and coincidence circuit by obtaining a column-assignment address by latching the addition result of an adder circuit for processing by a latch circuit, and then by comparing the content of the latch circuit to a processing-end column address.
CONSTITUTION: From control part 31 stored with various microinstructions, various signals of RAM32, an arithmetic memory, are outputted in parallel via bus lines. Next-address signal NA outputted from control part 31 is temporarily stored in address buffer 33 via address converting circuit 30 and then inputted to address part 34. According to the input signal from buffer 33, address part 34 assigns the address of control part 31. Timing decoder 36 outputs various control signals on the basis of signals ϕ1 and ϕ2, and t1Wt3 from timing signal generating circuit 37 and a command from operation decoder 35. Output data of adder circuit 38 are inputted to buffer 40 and latch circuits L2 and L3.
COPYRIGHT: (C)1980,JPO&Japio
JP2808379A 1979-03-10 1979-03-10 Arithmetic unit Granted JPS55121541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2808379A JPS55121541A (en) 1979-03-10 1979-03-10 Arithmetic unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2808379A JPS55121541A (en) 1979-03-10 1979-03-10 Arithmetic unit

Publications (2)

Publication Number Publication Date
JPS55121541A true JPS55121541A (en) 1980-09-18
JPS626253B2 JPS626253B2 (en) 1987-02-09

Family

ID=12238879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2808379A Granted JPS55121541A (en) 1979-03-10 1979-03-10 Arithmetic unit

Country Status (1)

Country Link
JP (1) JPS55121541A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843047A (en) * 1981-09-07 1983-03-12 Toshiba Corp Arithmetic controller
JPS58192154A (en) * 1982-05-07 1983-11-09 Casio Comput Co Ltd Memory device having automatic data processing function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843047A (en) * 1981-09-07 1983-03-12 Toshiba Corp Arithmetic controller
JPH0456349B2 (en) * 1981-09-07 1992-09-08 Tokyo Shibaura Electric Co
JPS58192154A (en) * 1982-05-07 1983-11-09 Casio Comput Co Ltd Memory device having automatic data processing function
JPH0449142B2 (en) * 1982-05-07 1992-08-10 Casio Computer Co Ltd

Also Published As

Publication number Publication date
JPS626253B2 (en) 1987-02-09

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