I am having a bit of trouble understanding Carry Flag (CF) and Overflow Flag (OF). Here are some sample problems I am working on:
I\'m using a 128 bit开发者_Python百科 integer counter in the very inner loops of my C++ code. (Irrelevant background: The actual application is evaluating finite difference equations on a regular grid
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What actually happens when a Byte overflows? Say we have byte byte1 = 150; // 10010110 byte byte2 = 199; // 11000111
There is an x86 assembly instruction ADC. I\'ve found this means "Add with carry". What does this mean/do? How would one implement the behavior of this instruction in C++?
Using inline assembler [gcc, intel, c], how to check if the carry flag is set after an o开发者_开发百科peration?sbb %eax,%eax will store -1 in eax if the carry flag is set, 0 if it is clear. There\'s
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