Difference between revisions of "Byte"
From Sega Retro
Scarred Sun (talk | contribs) m (11 revisions) |
m (Text replace - 'Category:Hacking' to 'Category:Technical') |
||
Line 9: | Line 9: | ||
* Double-words are used as absolute pointers in Mega Drive programming. | * Double-words are used as absolute pointers in Mega Drive programming. | ||
− | [[Category: | + | [[Category:Technical Information]] |
Revision as of 17:06, 10 March 2010
A byte is a collection of eight bits (a binary value of 0 or 1) or two nybbles. A nybble is represented by single digit from 0 to F (sixteen numbers, thus hexadecimal). As such, bytes are represented by a two-digit number from 00 to FF (totalling 256 possible values).
There are two bytes in a word and four bytes in a double-word (or long word). Additionally, 1024 bytes make a kilobyte, 1024 kilobytes make a megabyte, 1024 megabytes make a gigabyte, 1024 gigabytes make a terabyte, etc.
Examples
- Nybbles represent single pixels in Mega Drive graphics.
- Bytes represent ASCII characters.
- Words represent one colour in a Mega Drive palette.
- Double-words are used as absolute pointers in Mega Drive programming.