设r1,r2,r3,r4是cpu中的通用寄存器,试用方框图语言表示以下指令的指令周期流
时间: 2023-08-10 19:03:13 浏览: 63
以下是几条指令的指令周期流的方框图表示:
1. MOV r1, #5
```
+--------+
| Fetch |
+--------+
|
+--------+
| Decode |
+--------+
|
+--------+
| Execute|
+--------+
|
+--------+
| Write |
+--------+
```
2. ADD r2, r1, r3
```
+--------+
| Fetch |
+--------+
|
+--------+
| Decode |
+--------+
|
+--------+
| Execute|
+--------+
|
+--------+
| Write |
+--------+
```
3. SUB r4, r2, r3
```
+--------+
| Fetch |
+--------+
|
+--------+
| Decode |
+--------+
|
+--------+
| Execute|
+--------+
|
+--------+
| Write |
+--------+
```
4. STR r4, [r1]
```
+--------+
| Fetch |
+--------+
|
+--------+
| Decode |
+--------+
|
+--------+
| Execute|
+--------+
|
+--------+
| Memory |
+--------+
|
+--------+
| Write |
+--------+
```