| ??? 03/16/07 10:41 Read: times |
#135094 - Beware. Responding to: ???'s previous message |
Adding two floating point numbers, perhaps, or calculate a sin and throw away the result? There's not too much which can be optimised in that...
If the compiler realized that you are "throwing away" the result (i.e. not using it), it'll optimize the whole operation out. |
| Topic | Author | Date |
| akkkk! stupid compilers, something to watch | 01/01/70 00:00 | |
| ehm, isn't it the user? | 01/01/70 00:00 | |
| Well it might be phooey;- but its pretty common | 01/01/70 00:00 | |
| have you considered using a timer, perhaps... :-) | 01/01/70 00:00 | |
| yep but... | 01/01/70 00:00 | |
| Sorry - not this time, Jez | 01/01/70 00:00 | |
| if it is THAT short... | 01/01/70 00:00 | |
| Maybe not... | 01/01/70 00:00 | |
| Beware. | 01/01/70 00:00 | |
| Well, any compiler with half a brain does that. | 01/01/70 00:00 | |
| volatile | 01/01/70 00:00 | |
| use util/delay.h and read the lib documents | 01/01/70 00:00 | |
| optimization = lost control | 01/01/70 00:00 | |
| well that is the first mistake | 01/01/70 00:00 | |
| First mistake is using a HLL | 01/01/70 00:00 | |
| Optimise & kill code | 01/01/70 00:00 | |
| optimizers and NASA | 01/01/70 00:00 | |
| There are many levels in Keil | 01/01/70 00:00 | |
not always a good idea | 01/01/70 00:00 |