Level 1 6309 builds crash on a CoCo 3

[n6il]

When I was testing the MegaMiniMPI changes I was trying to use Level1 6309 for testing on a CoCo 3. Unfortunately this crashed. The 6809 versions all worked fine. I asked L. Curtis Boyle about this, and he said that Level1 2.0.x should work but Level1 1.x.x would crash. He said they "trash the vector page at $FExx". I tried searching but was not able to find any information about this.

[boisy]

My guess is that there's something not right in the 6309 implementation of the Level 1 kernel. It will take some investigation.

[n6il]

I was not able to reproduce this on the following emulators: MAME 0.260, VCC v2.1.8.1, XRoar.

Since it only seems to happen on real hardware, next steps to start removing hardware: Downgrade from 2MB to 512k, remove DAT board.

[strickyak]

I would have said "look for code that doesn't use symbols R$X, etc, for offsets to registers" but you say it works on emulators.
Strange. I have a 512K coco3 with 6309. I should give it a shot.

Also, I need to go ahead and add 6309 opcodes to my emulator soon...