adcintrin.h File Reference

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Macros
#define	__DEFAULT_FN_ATTRS   __attribute__((__always_inline__, __nodebug__))
#define	__INLINE   static __inline

Functions
__INLINE unsigned char __DEFAULT_FN_ATTRS	_addcarry_u32 (unsigned char __cf, unsigned int __x, unsigned int __y, unsigned int *__p)
	Adds unsigned 32-bit integers __x and __y, plus 0 or 1 as indicated by the carry flag __cf.
__INLINE unsigned char __DEFAULT_FN_ATTRS	_subborrow_u32 (unsigned char __cf, unsigned int __x, unsigned int __y, unsigned int *__p)
	Adds unsigned 32-bit integer __y to 0 or 1 as indicated by the carry flag __cf, and subtracts the result from unsigned 32-bit integer __x.

Macro Definition Documentation

__DEFAULT_FN_ATTRS

#define __DEFAULT_FN_ATTRS   __attribute__((__always_inline__, __nodebug__))

Definition at line 22 of file adcintrin.h.

__INLINE

#define __INLINE   static __inline

Definition at line 29 of file adcintrin.h.

Referenced by _addcarry_u32(), _addcarryx_u32(), and _subborrow_u32().

Function Documentation

_addcarry_u32()

__INLINE unsigned char __DEFAULT_FN_ATTRS _addcarry_u32	(	unsigned char	__cf,
		unsigned int	__x,
		unsigned int	__y,
		unsigned int *	__p )

Adds unsigned 32-bit integers __x and __y, plus 0 or 1 as indicated by the carry flag __cf.

Stores the unsigned 32-bit sum in the memory at __p, and returns the 8-bit carry-out (carry flag).

temp := (__cf == 0) ? 0 : 1
Store32(__p, __x + __y + temp)
result := CF

This intrinsic corresponds to the ADC instruction.

Parameters

__cf	The 8-bit unsigned carry flag; any non-zero value indicates carry.
__x	A 32-bit unsigned addend.
__y	A 32-bit unsigned addend.
__p	Pointer to memory for storing the sum.

Returns

The 8-bit unsigned carry-out value.

Definition at line 59 of file adcintrin.h.

References __DEFAULT_FN_ATTRS, __INLINE, __p, and __y.

_subborrow_u32()

__INLINE unsigned char __DEFAULT_FN_ATTRS _subborrow_u32	(	unsigned char	__cf,
		unsigned int	__x,
		unsigned int	__y,
		unsigned int *	__p )

Adds unsigned 32-bit integer __y to 0 or 1 as indicated by the carry flag __cf, and subtracts the result from unsigned 32-bit integer __x.

Stores the unsigned 32-bit difference in the memory at __p, and returns the 8-bit carry-out (carry or overflow flag).

temp := (__cf == 0) ? 0 : 1
Store32(__p, __x - (__y + temp))
result := CF

This intrinsic corresponds to the SBB instruction.

Parameters

__cf	The 8-bit unsigned carry flag; any non-zero value indicates carry.
__x	The 32-bit unsigned minuend.
__y	The 32-bit unsigned subtrahend.
__p	Pointer to memory for storing the difference.

Returns

The 8-bit unsigned carry-out value.

Definition at line 90 of file adcintrin.h.

References __DEFAULT_FN_ATTRS, __INLINE, __p, and __y.