No. Additional logic is needed to create a useful loop.
On QtSPIM, if a program gets caught in a loop, click the "stop" icon under the "Simulator" menu.
Here is another schematic program. The instructions are just sketched in as place holders. Don't pay much attention to them, but look at the jump instruction and its target.
The target of the jump instruction is the address
0x00450000.
| PC at top of cycle | Instruction (details omitted) | PC just after this instruction has executed (at the bottom of the cycle) |
|---|---|---|
| ............... | ........... | 00450000 |
| 00450000 | load | 00450004 |
| 00450004 | load | 00450008 |
| 00450008 | add | 0045000C |
| 0045000C | store | 00450010 |
| 00450010 | jump 0x00450000 | 004500 |
| 00450014 | no-op | 004500 |
Fill in the blanks.