JPS6425253A - Central processing unit - Google Patents
Central processing unitInfo
- Publication number
- JPS6425253A JPS6425253A JP62182675A JP18267587A JPS6425253A JP S6425253 A JPS6425253 A JP S6425253A JP 62182675 A JP62182675 A JP 62182675A JP 18267587 A JP18267587 A JP 18267587A JP S6425253 A JPS6425253 A JP S6425253A
- Authority
- JP
- Japan
- Prior art keywords
- register
- counter
- program
- counted value
- crn
- 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
- Debugging And Monitoring (AREA)
Abstract
PURPOSE:To efficiently execute debugging by providing an access frequency counter to reset its counted value with a reset signal, and counting the accessed number of times of a register with each access signal of the register. CONSTITUTION:Before executing a program, a reset signal C is inputted into an access frequency counter 1 and the counted value of respective counter registers CR1-CRn is set to '0'. Next, when the program is successively executed and a register R1 is accessed, for example, an access signal a1 is inputted from the register R1 to the counter register CR1 and the counter register CR1 executes the increment of the counted value. This action is executed at all the counter registers CR1-CRn. Accordingly, when the program is interrupted at a break point, the record as to which register in registers (R1-Rn) is accessed how many number of times during the execution of the program remains in the counter register CR1-CRn as the counted value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62182675A JPS6425253A (en) | 1987-07-21 | 1987-07-21 | Central processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62182675A JPS6425253A (en) | 1987-07-21 | 1987-07-21 | Central processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6425253A true JPS6425253A (en) | 1989-01-27 |
Family
ID=16122468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62182675A Pending JPS6425253A (en) | 1987-07-21 | 1987-07-21 | Central processing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6425253A (en) |
-
1987
- 1987-07-21 JP JP62182675A patent/JPS6425253A/en active Pending
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