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I don't really get that. The 6800 begat the 6809, and that was the connection to the 6800. When Motorola made the 68000 they decided to begin with a clean slate
by Tor3 3y ago
I don't really get that. The 6800 begat the 6809, and that was the connection to the 6800. When Motorola made the 68000 they decided to begin with a clean slate, there's really nothing in connection with the 6800 except the numbering scheme and both being big endian. If you want to use the word 'begat' then it fits Intel much more. Intel made the 8086, and Mensch made the 65816, both went for backwards compatibility (source or architecture) to some extent (which gave us segments and other negative artifacts).
So yes we agree on the facts, it's just so strange that you in your previous post said that the "6800 begat the 68000" - if anything, it didn't. All the companies went ahead with 16- and / or 32-bit CPUs, the difference is that Motorola broke away from their 8-bit past while doing so.
- zozbot234 3y ago> the difference is that Motorola broke away from their 8-bit past while doing so. And then they did it again with the PowerPC (and the 88000 prior to that) which had very little in common with the 68k.