By Letter: Non-alphabet | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
  Email this page to a friend


Jump trace buffer




(JTB) A feature of some pipelined processors (e.g. Amulet, Pentium?) which stores the source and destination addresses of the last few branch instuctions executed.

When a branch instruction is fetched, its source is looked for in the JTB. If found, the next instuction fetch will be from the previous destination of that branch.

If it turns out that the branch shouldn't have been taken this time, then the pipeline is flushed.

This means that in a tight loop it is not necessary to flush the pipeline every time you jump back to the start.



< Previous Terms Terms Containing jump trace buffer Next Terms >
Jughead
jukebox
jump
jumper
jump off into never-never land
JTB
Junction FET
Junction Field Effect Transistor
Juno
jupiter
Just a Bunch Of Disks


Web Standards & Support:

Link to and support eLook.org Powered by LoadedWeb Web Hosting
Valid XHTML 1.0!Valid CSS!eLook.org FireFox Extensions