JPS6425261A - Microprocessor system - Google Patents
Microprocessor systemInfo
- Publication number
- JPS6425261A JPS6425261A JP62181367A JP18136787A JPS6425261A JP S6425261 A JPS6425261 A JP S6425261A JP 62181367 A JP62181367 A JP 62181367A JP 18136787 A JP18136787 A JP 18136787A JP S6425261 A JPS6425261 A JP S6425261A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- data
- bus
- exceptional
- stack cache
- 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
Landscapes
- Memory System (AREA)
- Memory System Of A Hierarchy Structure (AREA)
Abstract
PURPOSE:To improve process efficiency by once saving the data of a register to a memory for a stack cache through a bus when an exceptional case occurs, thereafter saving the saved data to an external memory with utilizing the empty cycle of the bus. CONSTITUTION:A control circuit 12 saves data in respective registers Reg1-Reg(n) simultaneously to the memory for a stack cache 11 through buses BS1-BS(n) in case of receiving an interrupt notice or an exceptional process notice. Next, the data in the memory for the stack cache 11 are successively saved to an external memory 2 by utilizing the empty cycle of the bus BS while a microprocessor 1 executes the interruption processing and the exceptional processing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62181367A JPS6425261A (en) | 1987-07-21 | 1987-07-21 | Microprocessor system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62181367A JPS6425261A (en) | 1987-07-21 | 1987-07-21 | Microprocessor system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6425261A true JPS6425261A (en) | 1989-01-27 |
Family
ID=16099486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62181367A Pending JPS6425261A (en) | 1987-07-21 | 1987-07-21 | Microprocessor system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6425261A (en) |
-
1987
- 1987-07-21 JP JP62181367A patent/JPS6425261A/en active Pending
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