• State Not Answered
  • Locked Locked
  • Replies 1 reply
  • Subscribers 21 subscribers
  • Views 772 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Import a C variable in ASM with GNU compiler???

Jeremie Girouard

Hello all!
I'm writting a little OS for LCP2129.
For the moment their are only two task and one sheduler.
But i have a problem:

I would like to Import a C variable in ASM.
My compiler is GCC GNU compiler.

Do someone know how to do this?

The finalitty is to write the content of a variable in the R15(PC) register
Here is my code but it doesn't work:

typedef struct {
        unsigned long PC;
}contexte_tache;


contexte_tache tache1_contexte;


PC_TEMPORAIRE=tache1_contexte.PC;
asm("IMPORT PC_TEMPORAIRE");
asm("STR PC_TEMPORAIRE PC");

Does someone can help me?????????????
If it works i will post my code furthermore...

0