- What limited the use of the 6809 CPU in personal computers?
Why did manufacturers of home computers avoid using the 6809 CPU? I realize that the Z80 and 6502 had a 3- or 4-year head start in availability. But once it did become available in 1978, I don't
6809 Single Board Computer project – Page 4 – EEVblog
The 6809 was a great improvement over both the 6800 and the 6502, but was based almost purely on improving the 6800, taking almost nothing from the 6502. For example, the block copy inconvenience desc …
from HC11 to 6809 – Page 1 – EEVblog
i.e. 6809 is NOT object code compatible with 6800 nor 68HC11. If your code is just using 6800 opcodes, then you should be able to re-assemble for 6809 BUT if you went off the reservation with 68HC11-s …
飞利浦6730和飞利浦6809哪款更值得买呢? – 知乎
飞利浦6730和飞利浦6809哪款更值得买呢? 首先要知道飞利浦6809是6730的升级款。 升级款的就是小幅改动，整体没有大的变化。 那有哪些区别呢？ 6730：刷牙模式有3种，标准清洁、美白清洁、敏感模式，机身不防水，刷头更换无提示 6809：刷牙模式有2种，刷牙和清洁，机身可以水洗，刷头RFID芯片提示 … …
Motorola 6809 two stacks design – Retrocomputing Stack …
Well, the intent behind the two-stack design we can only guess today. It was definitely not the same as the intent behind the later development of User and Supervisor Stack in the Motorola 68000. The …
6809 Single Board Computer project – Page 1 – EEVblog
I've been working on a 6809 Single Board Computer design and I wanted to share it with the community. I've attached the schematic as a pdf. I would be interested in hearing from anyone inter …
6809 – Advantages of a Hitachi HD6309 versus a plain …
Hitachi was a second source for the Motorola 6809 Micro Processor. The 6309 had many secret features. What advantages does the HD6309 have over the MC6809?
Are the 6809 and 6809E different from a programmer's point of …
3 From the other point of view: there is no way how a program can decide if runs on 6809, or 6809E. There are methods to distinct between MC6809 and HD6309 programmatically (HD6309 has a specific set …
How did the 6809 achieve source-code compatibility with the …
17 The 6809 has 59 instructions, as compared with 78 on the 6800. So far as I can see, the 6809 lacks instructions that the 6800 has, such as aba, eorb and the transfer instructions (tba, tap and the …
A couple MC6809 questions – Page 1 – EEVblog
The 6809 assembler automatically converts some of the special function op-codes from the 6801 into the more generalised functions available on the 6809 architecture. You don't have to worry about …
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