Copper instructions and dma

[Jherek Carnelia]

I am trying to understand how the copper and dma interact. To that end I used the WinUAE dma debugger to view the horizontal positions on the line where I put the copper move instructions, so I could see which position each instruction occupied. However, the output is not what I expected - what I thought would be shown is move instructions sometime after horizontal position $37 on line $80 (because that is the line and horizontal position I am waiting for). The attached screen snip shows the result.
So the question is - Do I just misunderstand where the move instructions should appear or do I not know how to use the dma debugger?

Advice would be greatly appreciated. Thanks.

[Toni Wilen]

Do you have cycle-exact mode enabled? Confirm that your copper list uses positions you expect by typing "od" in debugger, after that "o" shows also vertical and horizontal position.

[Jherek Carnelia]

I have cycle exact (full) and cycle-exact (DMA/Memory accesses) checked. I typed what you said (attached) but to be honest I don't really know how to interpret what I'm seeing.

[Toni Wilen]

You need to exit and re-enter debugger to collect position info. It does not exist when it was enabled. It needs to be enabled manually simply because it means slower emulation.

[Jherek Carnelia]

Ah, brilliant! That's what I was expecting to see. Thank you very much for your help (and for the great tool!)