(HD6309) Hitachi's version of the Motorola 6809 microprocessor. Compatible with the 6809, it added 2 new 8 bit registers that could be added to form a second 16 bit register, and all four 8 bit registers could form a 32 bit register. It also featured division, and some 32 bit arithmetic and was generally 30% faster in native mode. This information, surprisingly, was never published by Hitachi.
(07 Nov 1994)