Format |
Syntax: |
Operation: |
Operands: |
Architecture revision |
Opcode | ||
|
1 |
frs |
Invalidate all entries in the return address stack. |
none |
Rev1+ |
|
Special instruction to invalidate the return address stack. This instruction is used when the user writes code that conflicts with the semantics required by the return address stack.
|
Q: |
Not affected |
|
V: |
Not affected |
|
N: |
Not affected |
|
Z: |
Not affected |
|
C: |
Not affected |
On implementation without a return stack this instruction will execute as a "NOP".