2015年2月23日 · There's a bit more work to do to translate the final sample to C. You need typedef struct A A; for the definition of a to work. Also in C, you cannot define the functions in …

2016年9月9日 · putbit(array, i, v) first of all checks the least significant bit of v; if it is 0, we have to clear the bit, and if it is 1, we have to set it. To set the bit, we do a bitwise or of the dword that …

Bit fields are bad in so many ways, I could almost write a book about it. In fact I almost had to do that for a bit field program that needed MISRA-C compliance. MISRA-C enforces all …

2009年6月25日 · #define SET_BIT(val, bitIndex) val |= (1 << bitIndex) Defines an atomic operation, since |= is one statement. But the ordinary code generated by a compiler will not try …

I'm trying to concatenate two binary numbers in C. So if I have 1010 and 0011 I want my result to be 10100011. I wrote a short routine that I thought would do the job: #include &lt;stdio.h&gt; in...

#define BIT(x) (1 << (x)) enum { motor_up = BIT(0), motor_down = BIT(1) }; There's no particular reason for a bunch of macros or enums with silly-names like BIT0 , BIT1 , ..., BITn . And …

2010年12月16日 · In C, C++, and similarly-syntaxed languages, you can determine if the right-most bit in an integer i is 1 or 0 by examining whether i & 1 is nonzero or zero. (Note that that's …

The purely bit manipulation version that's simply a series of bitwise OR paired with bit-shifts, which can be directly fed into C/Perl codes. -- Note : in the algebraic one, the binary string is …

However, the PORTnSET / PORTnCLEAR registers take a '1' to mean "please make this bit 1" (SET) or "please make this bit zero" (CLEAR) and a '0' to mean "leave the pin alone". so, you …

2013年10月26日 · Bitwise XOR "^" bit a bit b a ^ b (a XOR b) 0 0 0 0 1 1 1 0 1 1 1 0 However remember that doing XOR on a bit that already has 1 will convert it to zero. because 1 ^ 1 = 0; …