Vinit Bidkar wrote:
> Controller used : AT91SAM7X256 Atmel controller
> Platform for development: GCC (YAGARTO)
> Problem statement: I am trying to port a code written for IAR to
> GCC. IAR provides intrinisic functions like __enable_interrupt() and
> __disable_interrupt() for enabling and disabling interrupt. Does GCC
> have any intrinsic functions like what IAR has.
You can use inline asm code, as example:
#define __disable_interrupt() asm volatile ("msr CPSR_c, #0x9F")
#define __enable_interrupt() asm volatile ("msr CPSR_c, #0x1F")
Note, the above code assumes you are running in system mode. You may
have to read the CPSR, change the I bit and then write it back to make
it perfectly general.