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

Writing ARM application containing both C code and assemply code

Note: This was originally posted on 6th September 2007 at http://forums.arm.com

Hi I need to put one ARM instruction in ARM application written in C.
Basically my application looks like
void main(void)
{
................
   ................
   enable_IRQ();
   program_dma();   /* programs DMA with st address, dest addr, xfer length etc and enables DMA*/
   /* Here I want to put a ARM instruction(assembly) */
   ..............
}

Extra information:
            After enabling DMA, I want to execute WaitForInterrupt instruction by doing

MCR p15, 0, Rd, c7, c0, 4

Since this is C code I cant directly put that instruction( I guess).
Can you tell me how can I put that MCR instruction in my C code

Top replies

Simon Craske over 12 years ago +1 verified

Note: This was originally posted on 10th September 2007 at http://forums.arm.com Pavan, ARMCC also provides "embedded" assembler which allows simple creation of assembler functions within C source code;...

Parents

0 techguyz over 11 years ago

Hi pavan,
You can also try for ARM intrinsics for WFI instructions with respect to your ARM core which you are using. That helps you better in programming.
Cancel
Vote up 0 Vote down

Cancel

Reply

0 techguyz over 11 years ago

Hi pavan,
You can also try for ARM intrinsics for WFI instructions with respect to your ARM core which you are using. That helps you better in programming.
Cancel
Vote up 0 Vote down

Cancel

Children

No data