OpenForum RSS: pretty bitwise operations

pretty bitwise operations (LSTemp)

Wed, 13 Jun 2012 12:19:57 GMT

>> ��, �� , �� ...
> ��, �� : �� (A & ( B << C ))
> >> C == D ) :)

+1000

�� .

pretty bitwise operations (LSTemp)

Wed, 13 Jun 2012 12:05:17 GMT

> [code]
> inline int shr_and(void) {
> return ( (our_mask >>
> 13 ) & bitFlag);
> }
> [/code]

�� , �� . �� (� �� ):

((bitMask >> 12 ) == bitFlag);

pretty bitwise operations (LSTemp)

Wed, 13 Jun 2012 11:50:13 GMT

>> PS
>> � �� , ��
>> � ��:
>> "
>> ��!
>> ��: �� .
>> ��: �� (� ��, 13-�� 14-��).
>> ��:
> �� "�� 13
> � 14 �� "

�� (�� ) �� (bitMask) 13 � 14 � �� (bitFlag).

�� - �� , �� , �� .

>[�� ]
>> � �� . �� 13-14 �� (��
>> - �� ) � ��.
> �� , �� - "��
> �� 13 � 14"
> �� 13 � 14 ��
> �� - ��
> #define LOVELY_BIT_MASK ((1<<13) | (1<<14))
> if ( (our_mask & LOVELY_BIT

pretty bitwise operations (Alex_S)

Fri, 08 Jun 2012 01:08:02 GMT

>> #define LOVELY_BIT_MASK ((1<<13) | (1<<14))
>> if ( (our_mask & LOVELY_BITMASK) == LOVELY_BITMASK) -
> " == LOVELY_BITMASK " - ��.

�� . �� 2 �� - ��
��

pretty bitwise operations (pavlinux)

Wed, 06 Jun 2012 14:28:53 GMT

> #define LOVELY_BIT_MASK ((1<<13) | (1<<14))
> if ( (our_mask & LOVELY_BITMASK) == LOVELY_BITMASK) -

" == LOVELY_BITMASK " - ��.

pretty bitwise operations (pavlinux)

Wed, 06 Jun 2012 14:02:23 GMT

>[�� ]
>> � �� . �� 13-14 �� (��
>> - �� ) � ��.
> �� , �� - "��
> �� 13 � 14"
> �� 13 � 14 ��
> �� - ��
> #define LOVELY_BIT_MASK ((1<<13) | (1<<14))
> if ( (our_mask & LOVELY_BITMASK) == LOVELY_BITMASK) -
> ��
> �� - ��

[code]
#define LOVELY_BITMASK ((1<<13) | (1<<14))

const int our_mask = 0b0011000000000000;
const int bitFlag = 0b0011;

inline int love(void) {

return ( (our_mask & LOVELY_BITMASK) == LOVELY_BITMASK);
}

inline int shr_and(void) {

return ( (our_mask >> 13 ) & bitFlag);
}
[/code]

# gcc -O0 test.c
# objdump -d test.o

[code]
0000000000000000 <love>:
0: 55 push %rbp
1: 48 89 e

pretty bitwise operations (Alex_S)

Wed, 06 Jun 2012 01:28:58 GMT

>> �� .
>> � ��
> � �� "�� "? ��? :)

��. ��. �� ?

�� , �� ..

pretty bitwise operations (Alex_S)

Wed, 06 Jun 2012 01:27:32 GMT

> PS
> � �� , ��
> � ��:
> "
> ��!
> ��: �� .
> ��: �� (� ��, 13-�� 14-��).
> ��:

�� "�� 13 � 14 �� "

> � �� . �� 13-14 �� (��
> - �� ) � ��.

�� , �� - "�� 13 � 14"

�� 13 � 14 �� - ��

#define LOVELY_BIT_MASK ((1<<13) | (1<<14))

if ( (our_mask & LOVELY_BITMASK) == LOVELY_BITMASK) - ��

�� - ��

pretty bitwise operations (pavlinux)

Mon, 04 Jun 2012 18:18:05 GMT

> ��, �� , �� ...

��, �� : �� (A & ( B << C )) >> C == D ) :)