What is use of Shift Left/Right?

[bulletrick]

I have been programmer for a long a time. I was also introduced about the shifting of bytes (left and right) a long time ago but never really used it.

Can you guys give some application or usage of this? Thanks!

[si_the_geek]

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[Al42]

Shift left is * 2. Shift right is /2. And that's only a trivial usage. You can shift bits into a byte from a bit-banger (single bit) port to receive serial data. There are probably about another hundred uses I just can't think of at the moment.

[bulletrick]

Moved from "Contest Entries" forum

Sorry about that... Hehe. Just a miscommunication with my mouse..

[bulletrick]

Shift left is * 2. Shift right is /2. And that's only a trivial usage. You can shift bits into a byte from a bit-banger (single bit) port to receive serial data. There are probably about another hundred uses I just can't think of at the moment.

Thanks for the answer! At least it's a start. Please post again if you have thought of more.. Thanks again!

[penagate]

Compound integers:

high byte to byte: (byte) short >> 8

two bytes to short:
(short) = (highByte << 8) & lowByte

Etc.