ADVANCED PROCESSORS—80286 TO PENTIUM 14-3
features of the 80286 were used here, and more features were added as well – we can say
that the features of 80286 are a subset of the features of that of the 80386. Thus, it will be
to our advantage to go into the details of the architecture of the 80386, which will give us
all the wisdom necessary to understand the ’486 and Pentium which followed very soon.
14.2 | The 80386
In 1985, Intel released the 80386 processor which carried in it all the new features it had
introduced in its previous processor and also made one great leap – that was the doubling
of the data bus width to 32 bits and the increase in the address bus width to 32 bits.
Thus, the data band width doubled, and the addressable ph ...