JPS5549748A - Microprogram control unit - Google Patents

Microprogram control unit

Info

Publication number
JPS5549748A
JPS5549748A JP12224278A JP12224278A JPS5549748A JP S5549748 A JPS5549748 A JP S5549748A JP 12224278 A JP12224278 A JP 12224278A JP 12224278 A JP12224278 A JP 12224278A JP S5549748 A JPS5549748 A JP S5549748A
Authority
JP
Japan
Prior art keywords
instructions
micro instruction
storage means
horizontal
instruction storage
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
JP12224278A
Other languages
Japanese (ja)
Inventor
Hiroshi 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.)
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 JP12224278A priority Critical patent/JPS5549748A/en
Publication of JPS5549748A publication Critical patent/JPS5549748A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to perform an efficient execution which can use micro instruction horizontal and vertical types and is dependent upon address generation methods suitable for respective types.
CONSTITUTION: First micro instruction storage means 101 stores horizontal instructions, and second micro instruction storage means 201 stores horizontal or vertical instructions. Instructions read from micro instruction storage means 101 are stored in pipeline register 103, and the next address based on registers 104 and 107 is outputted to address line 110. When instructions read from micro instruction storage means 201 are horizontal-type, they are stored in pipeline register 107 to generate the next address on a basis of the register output. In case of vertical micro instructions, they are modified by branch condition modification part 209 to generate the next address for which the microprogram counter is used as a main unit.
COPYRIGHT: (C)1980,JPO&Japio
JP12224278A 1978-10-03 1978-10-03 Microprogram control unit Pending JPS5549748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12224278A JPS5549748A (en) 1978-10-03 1978-10-03 Microprogram control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12224278A JPS5549748A (en) 1978-10-03 1978-10-03 Microprogram control unit

Publications (1)

Publication Number Publication Date
JPS5549748A true JPS5549748A (en) 1980-04-10

Family

ID=14831100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12224278A Pending JPS5549748A (en) 1978-10-03 1978-10-03 Microprogram control unit

Country Status (1)

Country Link
JP (1) JPS5549748A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01166131A (en) * 1987-11-05 1989-06-30 Raytheon Co Next micro-command generator of micro-program controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01166131A (en) * 1987-11-05 1989-06-30 Raytheon Co Next micro-command generator of micro-program controller

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