| ??? 07/02/09 21:50 Read: times |
#166679 - Why do you ask? Responding to: ???'s previous message |
Is it purely out of curiosity, or do you have some need to know?
A compiler will use whatever instructions it deems necessary to implement the supplied source code. If there is no reason or need to use a particular machine instruction, then it won't get used - just like a real assembly programmer will only use an instruction if he has a need for it. With an open-source compiler like SDCC, you could examine its code generation and see if there are any instructions that could never occur - but what would be the point? |
| Topic | Author | Date |
| c compilers | 01/01/70 00:00 | |
| Didnt get it... | 01/01/70 00:00 | |
| Why do you ask? | 01/01/70 00:00 | |
| Depends a lot on processor and compiler | 01/01/70 00:00 | |
| Other examples: | 01/01/70 00:00 | |
| Not necessarily true | 01/01/70 00:00 | |
| Hand-crafted libraries | 01/01/70 00:00 | |
| I don't see this as compiler output | 01/01/70 00:00 | |
Seemed to be quite explicit question | 01/01/70 00:00 |