Hello everybody !

I'm trying to add asm code to teensy_pins.c in order to get an efficient port C interrupt,  in VS2012 (I bought vsMicro)
Here is my code :

void portc_isr(void)
{      
     uint32_t isfr = PORTC_ISFR;
     PORTC_ISFR = isfr;

     
     __asm(      "CLZ      R2, isfr;"                        // store leading zeros in r2
                 "CMP      R2, #19;"                        // Is there 19 leading zeros ?
     
                 "MOV      EQ R3, 0x400FF08C;"            // Move GPIOC_PTOR address to r3
                 "STREQ  0x100000, R3;"              // toggle pin 13, Port C-5 => (1 << 5)
     );
}

And I get the following errors (!!):

Compiling 'Interruption_pin12_led13' for 'Teensy 3.0'
cc7QmTvH.s* : : Assembler messages:
cc7QmTvH.s* : ARM register expected -- `clz R2,isfr'
cc7QmTvH.s* : ARM register expected -- `streq #0x100000,R3'

Could you help me please.
Thanks, 
Joss.

Hi, 

Okay, I understand. 
Thanks for this fast reply !

I'm gonna ask on Bulletin Teensy so. If I find the solution, I'll post the answer here for anyone in same situation.

Have a good evening.

Joss.