How do I split up a long value (32 bits) into four char variables (8bits) using C?
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Published on 2010-04-30T19:46:06Z
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I have a 32 bit long variable, CurrentPosition, that I want to split up into 4, 8bit characters. How would I do that most efficiently in C? I am working with an 8bit MCU, 8051 architectecture.
unsigned long CurrentPosition = 7654321;
unsigned char CP1 = 0;
unsigned char CP2 = 0;
unsigned char CP3 = 0;
unsigned char CP4 = 0;
// What do I do next?
Should I just reference the starting address of CurrentPosition with a pointer and then add 8 two that address four times?
It is little Endian.
ALSO I want CurrentPosition to remain unchanged.
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