JPS6437624A - Microprogram loading system - Google Patents

Microprogram loading system

Info

Publication number
JPS6437624A
JPS6437624A JP19263687A JP19263687A JPS6437624A JP S6437624 A JPS6437624 A JP S6437624A JP 19263687 A JP19263687 A JP 19263687A JP 19263687 A JP19263687 A JP 19263687A JP S6437624 A JPS6437624 A JP S6437624A
Authority
JP
Japan
Prior art keywords
microprogram
cswtar
written
leading
address
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
JP19263687A
Other languages
Japanese (ja)
Inventor
Takashi Morikawa
Hideo Igarashi
Kazuhiko Ninomiya
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP19263687A priority Critical patent/JPS6437624A/en
Publication of JPS6437624A publication Critical patent/JPS6437624A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stored Programmes (AREA)

Abstract

PURPOSE:To shorten the time of initially loaded microprogram (IML) by reading out a microprogram from a storage device and writing only a writing microprogram in a self control storage by a microinstruction of itself. CONSTITUTION:An SVP 2 stores the whole microprogram to be loaded in a determined area of an MS. The SVP 2 writes a part of the microprogram in a CS 7 by scanning. A CSWTAR 1 is cleared to zero and a leading address is set up to read out a leading microinstruction from the MS. The contents of the MS are read out, written in a register of a leading instruction REG 14 and then written in the CS 7. Since the CSWTAR 1 is cleared to zero, data are written in the address '0' of the CS 7 and the addresses of the CTWTAR 1 and the MS are updated until the CSWTAR 1 reaches the final address.
JP19263687A 1987-08-03 1987-08-03 Microprogram loading system Pending JPS6437624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19263687A JPS6437624A (en) 1987-08-03 1987-08-03 Microprogram loading system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19263687A JPS6437624A (en) 1987-08-03 1987-08-03 Microprogram loading system

Publications (1)

Publication Number Publication Date
JPS6437624A true JPS6437624A (en) 1989-02-08

Family

ID=16294548

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19263687A Pending JPS6437624A (en) 1987-08-03 1987-08-03 Microprogram loading system

Country Status (1)

Country Link
JP (1) JPS6437624A (en)

Similar Documents

Publication Publication Date Title
DE3072001D1 (en) Diagnostic circuitry in a data processor
JPS5582359A (en) Microprogram test unit
ES2005370A6 (en) Method to execute two instruction sequences in an order determined in advance.
JPS5790762A (en) Instruction control system
JPS56149645A (en) Instruction word deciphering device of information processor
KR860007590A (en) Buffer Memory Control System
JPS54122059A (en) Inter-processor information transfer system
JPS57109055A (en) Readout control system for microinstruction
JPS57212606A (en) Magnetic card recording system
JPS57105036A (en) Register means access system
JPS57189398A (en) Control system for memory system
JPS54149520A (en) Dispaly unit
JPS5730041A (en) Control system for local memory
JPS63115251A (en) Disk cache controller
JPS6421538A (en) Data driving type computer
JPS5717060A (en) Information processor
JPS6481031A (en) Data control system
JPS5740790A (en) Storage control system
JPS5797159A (en) Data processing device
JPS5615043A (en) Electron beam exposure system
JPS6481048A (en) History information storage device
JPS57191759A (en) Microprogram tracing system
JPS6412334A (en) Microprogram rewriting system
JPS57209545A (en) Data processing system
JPS5522274A (en) Exclusive control system