HD20 Question(s) — #7

Post #7 by JDW

Source Forum	HD20 Question(s) — #7
Category	Hardware
Post Date	Mon, 13 Aug 2007 - 09:42
Original URL	https://68kmla.org/bb/threads/hd20-question-s.9453/

Post

I did an extensive amount of work trying to get the HD20 to work with a Mac128k and basically never found a combination that works. ...the early small MacOS kernels (ie small enough to fit both kernel and HD INIT in memory) do not load the HD INIT. The smallest kernel I found that would load it on a Mac512 would not fit on a 128k.

Even so, it is still likely that if you bought an old Mac Plus and put its 128k ROMs into a Mac 128k motherboard, it just might work. The reason is because you would no longer need to load the INIT in that case due to the code of the INIT already being inside the 128k ROMs.