JPS5534745A - Microprogram tracer - Google Patents

Microprogram tracer

Info

Publication number
JPS5534745A
JPS5534745A JP10760278A JP10760278A JPS5534745A JP S5534745 A JPS5534745 A JP S5534745A JP 10760278 A JP10760278 A JP 10760278A JP 10760278 A JP10760278 A JP 10760278A JP S5534745 A JPS5534745 A JP S5534745A
Authority
JP
Japan
Prior art keywords
microprogram
address
register
trace
next execution
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
JP10760278A
Other languages
Japanese (ja)
Inventor
Yasushi Fukunaga
Tadaaki Bando
Takeshi Kato
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 JP10760278A priority Critical patent/JPS5534745A/en
Publication of JPS5534745A publication Critical patent/JPS5534745A/en
Pending legal-status Critical Current

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  • Debugging And Monitoring (AREA)

Abstract

PURPOSE: To make it possible to execute a trace object microprogram from a trace control program step by step by adding a hardware only for trace in the next execution address selection circuit of the microprogram.
CONSTITUTION: Standby microprogram address register 22 for microprogram trace is provided in microprogram control circuit 11. Circuit 11 generates the next execution address by output 18 of micro-instruction register 13 and signal 39 from hardware 14. Next execution address designation field 30 outputs signal 70 which selects and indicates register 22, and a program addressed by contents of register 22 is executed. Meanwhile, the output of buffer for address is inhibited. Therefore, next execution address 16 is set to 0 forcedly, and contents of address 0 are set to register 13, and after that, the program from address 0 is executed in order. Before the operation above, a signal to set selection circuit 21 to register 22 is outputted.
COPYRIGHT: (C)1980,JPO&Japio
JP10760278A 1978-09-04 1978-09-04 Microprogram tracer Pending JPS5534745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10760278A JPS5534745A (en) 1978-09-04 1978-09-04 Microprogram tracer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10760278A JPS5534745A (en) 1978-09-04 1978-09-04 Microprogram tracer

Publications (1)

Publication Number Publication Date
JPS5534745A true JPS5534745A (en) 1980-03-11

Family

ID=14463322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10760278A Pending JPS5534745A (en) 1978-09-04 1978-09-04 Microprogram tracer

Country Status (1)

Country Link
JP (1) JPS5534745A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5948356A (en) * 1982-09-13 1984-03-19 Toray Ind Inc Take-up method of filament yarn
JPH01102653A (en) * 1987-10-14 1989-04-20 Nec Corp Microprogram control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5948356A (en) * 1982-09-13 1984-03-19 Toray Ind Inc Take-up method of filament yarn
JPH01102653A (en) * 1987-10-14 1989-04-20 Nec Corp Microprogram control system

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