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A comment on Dunfield 6809 Portable. Parent comment

Re:Dunfield 6809 Portable by Zuider on Friday February 05, 2021 @06:09PM (#26042382)
If I recall correctly, that instruction doubled the clock speed of the M6809, usually at the expense of making it go out of sync with the woeful 6847 video chip, putting colorful garbage on the screen.
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Re:Dunfield 6809 Portable by ddingus on Friday February 05, 2021 @08:16PM (#26043213)
When that happened, I think it was on the CoCo 1 and maybe 2. The three can do it with no worries.

And the 3 didn't use the 6847, but a custom ASIC.

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Re:Dunfield 6809 Portable by HeyLaughingBoy on Saturday February 06, 2021 @02:21PM (#26049063)
It was OK on the CoCo2. ISTR doing it for some games I wrote in BASIC.
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Re:Dunfield 6809 Portable by ddingus on Sunday February 07, 2021 @01:30PM (#26056933)
Good to know, LOL. We are so late on this chat.

Fun stuff.

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