7 May
2010
7 May
'10
12:54 p.m.
On 5/6/2010 12:41 PM, Tony Duell wrote:
Ah, so the 8080, Z80 and 6809 are all 16 bit processors, then? They all
have machine instructiosn that can change all the bits in a 16-bit register.
Is the 68000 a 32 bit processor? Is the HP NUT (used in the HP41 and
Voyager series) a 56 bit processor (bit-serial, but with 56 bit
registers). Is the HP Saturn (used in the HP71B and many later
calculators) a 64 bit processor ? (4 bit ALU, 64 bit registers)
I don't beleive the 'number of bits' of a processor is precisely defined.
It may well depend on what aspect you are lookign at...
Is the IBM PC
8 bit (width of the data bus) or 16 bit?
16-bit. Until the day I die.
I thought it was proper practice to note a CPU based on the size of it's
internal registers and/or the number of bits that can be changed in a
single operation. Is someone seriously challenging that the IBM PC 5150
wasn't a 16-bit
computer?
Well, I only see an 8 bit databus on the schematics...
-tony