µVISION DEBUGGER: Watching Assembly Variables

Information in this article applies to:

• µVision Version 2 and later

QUESTION

I want to watch a word in XDATA memory. The variable is defined in my assembly code as follows:

mike:   ds   2

How can I do this? Also, is there a way to add a constant value to this variable from within the debugger?

ANSWER

To add this assembly variable to the watch window, you must use the following command:

ws _rword(&mike)

To initialize this variable to a value of 300, enter the following code in the debugger's command window:

_wword(&mike,300)

And, to add 300 to it, enter the following code in the debugger's command window:

_wword(&mike, _rword(&mike) + 300)

Last Reviewed: Friday, January 8, 2021