 | Services and Modeling for Embedded Software Development |
|---|
| Services and Modeling for Embedded Software Development |
|---|
 |  | |
The NOP instruction takes an immediate argument which
can be used to trigger certain behavior in a simulator.
0 : Breakpoint
1 : Do nothing
2 : Exit with return code in Rd
3 : Write char in Rd to standard output.
4 : Write char in Rd to standard error.
All other values: do nothing, but future behavior not guaranteed.
| |  | |
| 2.2. Event Handling |  | Chapter 3. Instructions |