9 May
2010
9 May
'10
10:29 a.m.
So, the National SC/MP and RCA 1802 were 1-bit
microprocessors?
I've heard this said about the SC/MP before, but the data sheet shows an
8-bit parallel ALU. Do you have any docuemtnation which claims it's
bit-serial?
That's sure to start a fight somewhere...
If you take the ALU size, then the P850 becomes an 8-bit machine
(everybody considers it to be 16 bits, which is the logical size to a
proggrammer). And what size is the HP9830? The ALU in there is bit-serial
form binary operations and 4 bits wide for BCD operations.
As I hope we've all seen by now, you often can't quote a single 'bit
count' for a machine that's applicable in all cases.
-tony