Tuesday 16 August 2016

Importance Of Segmentation

-The segment:offset scheme requires only a 16bit number to represent the base address for a segment and only 16bit offset to access any location in a segment.

- This means that the 8086 has to manipulate and store only 16 bit quantities instead of 20bit quantities.
This makes for an easier interface with 8 and 16bit wide memory boards and with the 16 bit registers in the 8086.

- Each time the CPU switches from one user's program to the next, it must access a new section of data. Segmentation makes this switching quite easy.

No comments:

Post a Comment