DDT on Raspberry PI

(1) There does not seem to be a restart command in DDT.
(2) The find command does not work.
(3) For assembly language debugging, it would be a nice option to always show the latest register contents, without having to keep asking for it.
(4) If the find command would work, it would be nice to have the found string highlighted in the main window.
(5) And lastly, it is very unfortunate that DDT does not multitask.

Hi Steven,

(1) There does not seem to be a restart command in DDT.

Technically there kinda is: Use Change → Register → type pc in the name field → type &00008000 in the value and press ENTER/RETURN.
Then use “Step by ARM instruction” in the “Single step” Window and see what happens. It’s not perfect indeed, but it does the job in many cases.

(2) The find command does not work.

Can you explain this? You mean to search for ObjASM labels? Because it works to search for data.

BTW there is a hack to find ObjASM Labels: Use Display → Type the label name in the input field → Click Disassembly

You can also find labels with: Display → Type the label name in the input filed → Click Symbols (in this case it will appear in the Status Window with it’s address and segment)

(3) For assembly language debugging, it would be a nice option to always show the latest register contents, without having to keep asking for it.

This is already implemented since Acorn days. Use Display → then select [] Update and then click → Registers
Then continue debugging and see what happens in the Status window.

(4) If the find command would work, it would be nice to have the found string highlighted in the main window.

That’s something you can do with the hack I showed you to find labels, it won’t be highlighted, but it will appear at the very top of the Source Window and with its address, not sure if this is of help to you thought.

HTH