8 Nov
2007
8 Nov
'07
12:44 p.m.
Eric J Korpela wrote:
And how about the Philips P850? The front panel has 16 lights and
switches. The registers appear to be 16 bits wide. The I/O bus is 16 bits
wide. But the ALU is 8 bits wide, as is the memory bus. The machine does
2 ALU operations in hardware for each apparent 16 bit operation.
For an even odder example, consider the HP9810 calculator. It can be
considered to be :
1 bit (ALU width for binary operations)
3 bits (Phyiscial width of user program RAM)
4 bits (ALU width for BCD operations)
6 bits (Logical width of user program RAM)
8 bits (physiical width of user data RAM)
16 bits (physical size of registers, ROM width, logical width of data RAM)
-tony
On Nov 7, 2007 1:26 PM, woodelf <bfranchuk at
jetnet.ab.ca> wrote:
So what's your thoughts on the 8088? 16-bit registers, 8-bit data path
(but with 16-bit addressing). Is it a 16-bit CPU or an 8-bit CPU? The 68K is 32 bit cpu
We'll have to agree to disagree on that. MC68020 is the first 32 bit
CPU in the 68K line.