>> Yes, to say that the 8088 and 8086 were the same is incorrect, but they
>> _basically_ had the same core and everything... it was just the data bus
>> was 8 bit on the 8088 and 16-bit on the 8086. They were fully compatible
>> program-wise, just that the 8086 was faster as it could push 2x data over
>> the 8088.
Not only this, the 8088 BIU was kind of krippled and issued 16 Bit
Memory access also when a 8 Bit access would be sufficeient. This
costs even more bandwide.
> Do I not recall correctly that the 8088 was in fact half of a two chip
> set and that the 8086 was 'self contained', and that IBM elected to not use
> the other half.
No, both are 'self contained' CPUs. But there are two other
processors within the family the 8087 FPU and 8089 IOP. The
complete design looks a lot like a real computer :)
Gruss
Hans
--
Ich denke, also bin ich, also gut
HRK
Received on Fri Nov 06 1998 - 05:22:12 GMT