>It was the 64HD180. But it was Hitachi, not Zilog that did it. Zilog called it the Z180. They also had a Z280 which was a true 16-bit version. Andy ================================================================== Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 Hardware & Software for Industry & R/C Hobbies "Go fast, turn right, and keep the wet side down!" ==================================================================