

MAME EMULATOR MAC OS X INTEL CODE
Although source compatible with the earlier Motorola 6800, the 6809 offered significant improvements over it and 8-bit contempories like the MOS Technology 6502, including a hardware multiplication instruction, 16-bit arithmetic, system and user stack registers allowing re-entrant code, improved interrupts, position-independent code and an orthogonal instruction set architecture with a comprehensive set of addressing modes.Īmong the most powerful 8-bit processors of its era, it was also much more expensive. It was designed by Motorola's Terry Ritter and Joel Boney and introduced in 1978.

The Motorola 6809 (" sixty-eight-oh-nine") is an 8-bit microprocessor CPU with some 16-bit features.
