I have an input file that has 16 bit int addresses. For each entry in the list, I need to read in 8 bits for a "page number", and 8 bits for an "offset". Any idea how I could do this? I don't find any support for doing bitwise operations in c.
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You can use `fread` to read binary data. – Fiddling Bits Apr 06 '15 at 00:55
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What language are you using? `C` or `C++`? – Galik Apr 06 '15 at 00:56
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***I don't find any support for doing bitwise operations in c*** There are shifts, and, or, xor ... – drescherjm Apr 06 '15 at 00:56
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Read your text file into an array of 16-bit elements, and then separate the high and the low portions like this:
uint16_t num;
uint8_t low = num & 0xFF;
uint8_t high = (num >> 8) & 0xFF;
Sergey Kalinichenko
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how would you read in a byte from a string of digits though? I'm not exactly sure how to parse the string into numerical bytes. (I don't mean individual characters) – John Dodson Apr 06 '15 at 01:02
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This doesn't seem to work, instead of getting two int values I get a bunch of random characters – John Dodson Apr 06 '15 at 04:48
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@JohnDodson "random characters"? Probably, you are not printing them right? – Sergey Kalinichenko Apr 06 '15 at 07:30