JPS6462735A - Microprogram controller - Google Patents
Microprogram controllerInfo
- Publication number
- JPS6462735A JPS6462735A JP22112087A JP22112087A JPS6462735A JP S6462735 A JPS6462735 A JP S6462735A JP 22112087 A JP22112087 A JP 22112087A JP 22112087 A JP22112087 A JP 22112087A JP S6462735 A JPS6462735 A JP S6462735A
- Authority
- JP
- Japan
- Prior art keywords
- register
- drawback
- instruction
- processing
- range
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/461—Saving or restoring of program or task context
- G06F9/462—Saving or restoring of program or task context with multiple register sets
Landscapes
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
Abstract
PURPOSE:To omit a useless drawback and a restoration processing, and to contrive to improve the processing capacity, by excluding a register whose contents can be changed by an interruption processing, from a drawback range by a unit of a routine, etc. CONSTITUTION:A drawback register range designating instruction B for designating a range of a register which necessitates a drawback when an interruption has been generated is contained in advance at every key point in a micro- program. Also, it is held in a micro-instruction register 2. In such a state, a drawback register range designating instruction B of a micro-instruction is decoded in a register drawback/restoration control part 7, and the register drawback/restoration control part 7 draws back the contents of a determined register which necessitates a drawback, to a register drawback use memory 8, based on the drawback register range designating instruction B which has been decoded recently, among each register for constituting a register group 4. That is, as for the register whose contents can be changed by an interruption processing, a useless drawback and a restoration processing are omitted. In such a way, the processing capacity as the whole device is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22112087A JPS6462735A (en) | 1987-09-03 | 1987-09-03 | Microprogram controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22112087A JPS6462735A (en) | 1987-09-03 | 1987-09-03 | Microprogram controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6462735A true JPS6462735A (en) | 1989-03-09 |
Family
ID=16761785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22112087A Pending JPS6462735A (en) | 1987-09-03 | 1987-09-03 | Microprogram controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6462735A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009217681A (en) * | 2008-03-12 | 2009-09-24 | Omron Corp | Plc with interrupting function |
-
1987
- 1987-09-03 JP JP22112087A patent/JPS6462735A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009217681A (en) * | 2008-03-12 | 2009-09-24 | Omron Corp | Plc with interrupting function |
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