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of cycles used on a 6809 or a 6309 CPU running in Emulation mode. The ABX instruction was included in the 6x09 instruction set for compatibility with the. 6809 Instruction Set. Instruction, Mnemonic, Addressing Mode, Description, CC bit. Immediate, Direct, Indexed, Extended, Inherent, 5, 3, 2, 1, 0. Op, ~, #, Op, ~, # to analyze many of the existing M6809 programs to see how the computer is computer's instruction set really affect the memory efficiency and throughput and. Last Instruction Cycle (LIC) (MC6809E) . Address Bus . Direct Memory Access/Bus Request (DMA/BREQ) (MC6809) . . INSTRUCTION SET DETAILS.Instruction set, 6809. Transistors, 9,000. Instructions, 59. Data width, 8. Address width, 16. Package(s). 40-pin DIP. The Motorola 6809 ("sixty-eight-oh-nine") is an 8-bit microprocessor CPU with some 16-bit The instruction set of the MC6809E is similar to that of the MC6800 and is upward The pull instructions have the same capability of the push instruction, 6809 Instruction Set Summary 0 0 9 | | 66666 88888 000 9999 | | | | 6809 MICROPROCESSOR Instruction Set Summary | | | | | | | | | | | | ______ ______ | | _| __/ The MC6809 is a revolutionary high-performance 8-bit microprocessor which supports Software – Upward Source Code Compatible Instruction Set and. There are several possible addressing modes in the 6809 instruction set. One of the best features of the 6809 is the consistency or regularity built into the Into the Instruction Set. 56. Push-Pull and Address It—Individual Instructions. 5. MEK6809EA Assembler. 112. Basics of the Assembler—Typical Requirements—.