| ??? 05/09/06 20:23 Read: times |
#115889 - Playing with The Stack Pointer Responding to: ???'s previous message |
You say you are a beginner, but are tring an advanced method.
You can not just pop the return address and push a new one. You need to Restore the the pointer. If there are any calls on the stack you will eventualy overflow the stack. You will have to assume certain math was left half done. You can not know when the interupt occurs. |
| Topic | Author | Date |
| I'm in trouble with my PWM software | 01/01/70 00:00 | |
| Interrupts ? | 01/01/70 00:00 | |
| Firstly I want to explain how my hardwar | 01/01/70 00:00 | |
| 89C52 | 01/01/70 00:00 | |
| use a uC with a PCA | 01/01/70 00:00 | |
| wiggling with the stack pointer | 01/01/70 00:00 | |
| I know that.... | 01/01/70 00:00 | |
| no you don't | 01/01/70 00:00 | |
| To: Erik | 01/01/70 00:00 | |
| My code | 01/01/70 00:00 | |
| I can't tell | 01/01/70 00:00 | |
| His Code | 01/01/70 00:00 | |
| Nicely formatted | 01/01/70 00:00 | |
| As Erik suggested | 01/01/70 00:00 | |
| not valuable | 01/01/70 00:00 | |
| Hard to understand | 01/01/70 00:00 | |
| asking for? | 01/01/70 00:00 | |
| Weird DNA.... | 01/01/70 00:00 | |
| that does make a difference | 01/01/70 00:00 | |
| Playing with The Stack Pointer | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
| ORG 33H | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| replying to what in the above refer to m | 01/01/70 00:00 | |
| Listen and learn | 01/01/70 00:00 | |
| excellent question | 01/01/70 00:00 | |
| I'm listening and learning | 01/01/70 00:00 | |
| Oops | 01/01/70 00:00 | |
| Rewrite ! | 01/01/70 00:00 | |
| WRONG | 01/01/70 00:00 | |
| Basic methods & specific details | 01/01/70 00:00 | |
| To:Neil | 01/01/70 00:00 | |
| +ve&-ve | 01/01/70 00:00 | |
| totally unnneded information | 01/01/70 00:00 | |
| +ve | 01/01/70 00:00 | |
| Me too | 01/01/70 00:00 | |
| halfway | 01/01/70 00:00 | |
| Just like the first time I saw 3v3 | 01/01/70 00:00 | |
| Mid 70's | 01/01/70 00:00 | |
| the reason | 01/01/70 00:00 | |
| Yes - Very Well Established | 01/01/70 00:00 | |
| the trouble is | 01/01/70 00:00 | |
| Other calls | 01/01/70 00:00 | |
| One thing for the future | 01/01/70 00:00 | |
| I do not see the point | 01/01/70 00:00 | |
| I got bored... | 01/01/70 00:00 | |
| argh, so many nops | 01/01/70 00:00 | |
| NOP | 01/01/70 00:00 | |
| New version | 01/01/70 00:00 | |
| Thanks Steve...and others | 01/01/70 00:00 | |
| NO | 01/01/70 00:00 | |
| I suggest you look at your own changes | 01/01/70 00:00 | |
| His new code | 01/01/70 00:00 | |
| very informative | 01/01/70 00:00 | |
| Another happy customer | 01/01/70 00:00 | |
| Young Double E? | 01/01/70 00:00 | |
| finished | 01/01/70 00:00 | |
the one at which end of the body? | 01/01/70 00:00 |