NAME

       avr_builtins - <avr/builtins.h>: avr-gcc builtins documentation

SYNOPSIS

   Functions
       void __builtin_avr_sei (void)
       void __builtin_avr_cli (void)
       void __builtin_avr_sleep (void)
       void __builtin_avr_wdr (void)
       uint8_t __builtin_avr_swap (uint8_t __b)
       uint16_t __builtin_avr_fmul (uint8_t __a, uint8_t __b)
       int16_t __builtin_avr_fmuls (int8_t __a, int8_t __b)
       int16_t __builtin_avr_fmulsu (int8_t __a, uint8_t __b)

Detailed Description

       #include <avr/builtins.h>

       Note
           This file only documents some avr-gcc builtins. For functions built-in in the compiler, there should
           be no prototype declarations.

       See also the GCC documentation for a full list of avr-gcc builtins.

Function Documentation

   void __builtin_avr_cli (void) [extern]
       Disables all interrupts by clearing the global interrupt mask.

   uint16_t __builtin_avr_fmul (uint8_t __a, uint8_t __b) [extern]
       Emits an FMUL (fractional multiply unsigned) instruction.

   int16_t __builtin_avr_fmuls (int8_t __a, int8_t __b) [extern]
       Emits an FMUL (fractional multiply signed) instruction.

   int16_t __builtin_avr_fmulsu (int8_t __a, uint8_t __b) [extern]
       Emits an FMUL (fractional multiply signed with unsigned) instruction.

   void __builtin_avr_sei (void) [extern]
       Enables interrupts by setting the global interrupt mask.

   void __builtin_avr_sleep (void) [extern]
       Emits a SLEEP instruction.

   uint8_t __builtin_avr_swap (uint8_t __b) [extern]
       Emits a SWAP (nibble swap) instruction on __b.

   void __builtin_avr_wdr (void) [extern]
       Emits a WDR (watchdog reset) instruction.

Author

       Generated automatically by Doxygen for AVR-LibC from the source code.

AVR-LibC                                          Version 2.2.1                               avr_builtins(3avr)