__disable_fiq
In this section:
Syntax
void __disable_fiq(void);
Description
In 32-bit mode: Disables fast interrupt requests (fiq). This intrinsic function can only be used in privileged mode and is not available for Cortex-M devices.
In 64-bit mode: Disables fast interrupt requests in the DAIF system register (bit 1).
Note
To use intrinsic functions in an application, you must include the header file(s) where they are declared, see Summary of intrinsic functions.