alt Hacker NewsNot for the data path; the 68000 operates on 32 bit values 16 bits at a time, both through its external 16 bit bus and internal 16 bit ALU. Most 32 bit operations take more cycles. But yes, it has a 32 bit programming model.
Not for the data path; the 68000 operates on 32 bit values 16 bits at a time, both through its external 16 bit bus and internal 16 bit ALU. Most 32 bit operations take more cycles. But yes, it has a 32 bit programming model.
Actually, the 68000 had one full (all operations) 16 bit ALU and two more simple (add/subtract, so AU might be a better name) 16 bit ALUs so in the best case it could crunch 48 bits per clock cycle. The 8086 had one full 16 bit ALU and one simple 16 bit ALU (the ancestor of todays AGUs - address generator units).