> For the complete documentation index, see [llms.txt](https://docs.hex-rays.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hex-rays.com/ida-9.5/core/disassembler/concepts/highlighting-identifiers.md). # Highlighting identifiers In the graphical version, IDA highlights the identifier under the cursor. For example, if the cursor is on the "EAX" register, then all occurrences of "EAX" will be displayed with the yellow background. This feature is meant to make the program analysis easier by highlighting the interesting parts of the disassembly. For example, if the user wants to see all references to "EAX", he just clicks on any "EAX" on the screen and all of them will be highlighted. The selection is made by pressing the Up, Down, Left, Right keys or by simply clicking on the identifier. The selection is not changed by pressing the PageUp, PageDown, Home, End keys, using the scrollbar, or pressing the Alt-Up, Alt-Down, Ctrl-Up, Ctrl-Down keys. The Alt-Up and Alt-Down keys perform a search of the currently selected identifier backward or forward respectively. The Ctrl-Up and Ctrl-Down keys scroll the disassembly text. IDA does not highlight the segment names at the line prefix because it is not very useful. It is possible to turn off the highlight. The appropriate checkbox is in the [Options → General... → Browser](/ida-9.5/ida-actions/options.md#browser-options) tab. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.hex-rays.com/ida-9.5/core/disassembler/concepts/highlighting-identifiers.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.