Collaborate Disseminate
Depending on the device in hand and one’s temperament, bringing up a new part can be a frolic through the verdant fields of discovery or an endless slog through the grey marshes of defeat. One of the reasons we find ourselves sticking with tried and true parts we know well …read more
Continue reading Little Hex Tricks Make Little Displays a Little Easier
In the embedded world, twiddling a few bits is expected behavior. Firmware is far enough down the stack that the author may care about the number of bits and bytes used, or needs to work with registers directly to make the machine dance. Usually these operations are confined to the …read more
Continue reading These Bit Twiddling Tricks Will Make Your Coworkers Hate You
If you like nitpicking around C code and generated assembly language — and we’ll admit that we do — you shouldn’t miss [Scaramanga’s] analysis of what’s known as Kernighan’s trick. If you haven’t heard of the trick, it’s a pretty efficient way of counting bits.
Like the Wheatstone bridge and …read more
Continue reading Abusing A CPU’s Adders To Optimize Bit Counting