# !lbrdump (dump Last Branch Record entries) ### Command > !lbrdump ### Syntax > !lbrdump \[core CoreId (hex)] ### Description Dumps the Last Branch Record (LBR) entries. {% hint style="info" %} Before using this command, you need to enable the LBR using the '[!lbr](https://docs.hyperdbg.org/commands/extension-commands/lbr)' command. {% endhint %} ### Parameters **\[core CoreId (hex)] (optional)** Optional value to dump the LBR entries from a specific core. Add `core xx` to your command; thus, the LBR entries from core `xx` will be dumped. If you don't specify this option, then by default, the LBR entries from all cores are dumped. ### Examples The following command dumps LBR entries from all cores. Note that in this case, only the second core has the target entries; in other words, only the second core executed the '[lbr\_save](https://docs.hyperdbg.org/commands/scripting-language/functions/tracing/lbr_save)' function as a result of triggering an event. ```c HyperDbg> !lbrdump LBR Chronological Trace on core (decimal): 0 no LBR entries found for this core you can use the 'lbr_save();' function in the script engine on the target core to save the LBR entries before dumping =========================================================== LBR Chronological Trace on core (decimal): 1 no LBR entries found for this core you can use the 'lbr_save();' function in the script engine on the target core to save the LBR entries before dumping =========================================================== LBR Chronological Trace on core (decimal): 2 [29] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [30] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8d6a To: 00007ff76c3a8de5 [31] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8df5 To: 00007ff76c3a8e13 [ 0] Branch Mispredicted: false, Cycle Count (Decimal): 005 - From: 00007ff76c3a8e25 To: 00007ff76c3a8e46 [ 1] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8e61 To: 00007ff76c3a8e8a [ 2] Branch Mispredicted: false, Cycle Count (Decimal): 005 - From: 00007ff76c3a8e9f To: 00007ff76c3a8eb1 [ 3] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eba To: 00007ff76c3a8eea [ 4] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [ 5] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8d6a To: 00007ff76c3a8de5 [ 6] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8df5 To: 00007ff76c3a8e13 [ 7] Branch Mispredicted: false, Cycle Count (Decimal): 005 - From: 00007ff76c3a8e25 To: 00007ff76c3a8e46 [ 8] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8e61 To: 00007ff76c3a8e8a [ 9] Branch Mispredicted: false, Cycle Count (Decimal): 008 - From: 00007ff76c3a8e9f To: 00007ff76c3a8eb1 [10] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eba To: 00007ff76c3a8eea [11] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [12] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8d6a To: 00007ff76c3a8de5 [13] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8df5 To: 00007ff76c3a8e13 [14] Branch Mispredicted: false, Cycle Count (Decimal): 008 - From: 00007ff76c3a8e25 To: 00007ff76c3a8e46 [15] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8e61 To: 00007ff76c3a8e8a [16] Branch Mispredicted: false, Cycle Count (Decimal): 013 - From: 00007ff76c3a8e9f To: 00007ff76c3a8eb1 [17] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eba To: 00007ff76c3a8eea [18] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [19] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8d6a To: 00007ff76c3a8de5 [20] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8df5 To: 00007ff76c3a8e13 [21] Branch Mispredicted: false, Cycle Count (Decimal): 004 - From: 00007ff76c3a8e25 To: 00007ff76c3a8e46 [22] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8e61 To: 00007ff76c3a8e8a [23] Branch Mispredicted: false, Cycle Count (Decimal): 004 - From: 00007ff76c3a8e9f To: 00007ff76c3a8eb1 [24] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eba To: 00007ff76c3a8eea [25] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [26] Branch Mispredicted: true , Cycle Count (Decimal): 001 - From: 00007ff76c3a8d54 To: 00007ff76c3a8eef [27] Branch Mispredicted: false, Cycle Count (Decimal): 007 - From: 00007ff76c3a8efb To: 00007ff76c3a913e [28] Branch Mispredicted: false, Cycle Count (Decimal): 015 - From: 00007ff76c3a9144 To: 00007ff76c3a2fd7 LBR Chronological Trace on core (decimal): 3 no LBR entries found for this core you can use the 'lbr_save();' function in the script engine on the target core to save the LBR entries before dumping =========================================================== LBR Chronological Trace on core (decimal): 4 no LBR entries found for this core you can use the 'lbr_save();' function in the script engine on the target core to save the LBR entries before dumping =========================================================== ... ``` The following command dumps LBR entries from core **0x2**. ```c HyperDbg> !lbrdump core 2 LBR Chronological Trace on core (decimal): 2 [29] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [30] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8d6a To: 00007ff76c3a8de5 [31] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8df5 To: 00007ff76c3a8e13 [ 0] Branch Mispredicted: false, Cycle Count (Decimal): 005 - From: 00007ff76c3a8e25 To: 00007ff76c3a8e46 [ 1] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8e61 To: 00007ff76c3a8e8a [ 2] Branch Mispredicted: false, Cycle Count (Decimal): 005 - From: 00007ff76c3a8e9f To: 00007ff76c3a8eb1 [ 3] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eba To: 00007ff76c3a8eea [ 4] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [ 5] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8d6a To: 00007ff76c3a8de5 [ 6] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8df5 To: 00007ff76c3a8e13 [ 7] Branch Mispredicted: false, Cycle Count (Decimal): 005 - From: 00007ff76c3a8e25 To: 00007ff76c3a8e46 [ 8] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8e61 To: 00007ff76c3a8e8a [ 9] Branch Mispredicted: false, Cycle Count (Decimal): 008 - From: 00007ff76c3a8e9f To: 00007ff76c3a8eb1 [10] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eba To: 00007ff76c3a8eea [11] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [12] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8d6a To: 00007ff76c3a8de5 [13] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8df5 To: 00007ff76c3a8e13 [14] Branch Mispredicted: false, Cycle Count (Decimal): 008 - From: 00007ff76c3a8e25 To: 00007ff76c3a8e46 [15] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8e61 To: 00007ff76c3a8e8a [16] Branch Mispredicted: false, Cycle Count (Decimal): 013 - From: 00007ff76c3a8e9f To: 00007ff76c3a8eb1 [17] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eba To: 00007ff76c3a8eea [18] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [19] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8d6a To: 00007ff76c3a8de5 [20] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8df5 To: 00007ff76c3a8e13 [21] Branch Mispredicted: false, Cycle Count (Decimal): 004 - From: 00007ff76c3a8e25 To: 00007ff76c3a8e46 [22] Branch Mispredicted: false, Cycle Count (Decimal): 002 - From: 00007ff76c3a8e61 To: 00007ff76c3a8e8a [23] Branch Mispredicted: false, Cycle Count (Decimal): 004 - From: 00007ff76c3a8e9f To: 00007ff76c3a8eb1 [24] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eba To: 00007ff76c3a8eea [25] Branch Mispredicted: false, Cycle Count (Decimal): 001 - From: 00007ff76c3a8eea To: 00007ff76c3a8d44 [26] Branch Mispredicted: true , Cycle Count (Decimal): 001 - From: 00007ff76c3a8d54 To: 00007ff76c3a8eef [27] Branch Mispredicted: false, Cycle Count (Decimal): 007 - From: 00007ff76c3a8efb To: 00007ff76c3a913e [28] Branch Mispredicted: false, Cycle Count (Decimal): 015 - From: 00007ff76c3a9144 To: 00007ff76c3a2fd7 ``` ### IOCTL None ### Remarks Starting from **v0.19**, this command was added to the HyperDbg debugger. This command is guaranteed to keep debuggee in a halt state (in Debugger Mode); thus, nothing will change during its execution. ### Requirements None ### Related [lbr\_save](https://docs.hyperdbg.org/commands/scripting-language/functions/tracing/lbr_save) [lbr\_print](https://docs.hyperdbg.org/commands/scripting-language/functions/tracing/lbr_print) [!lbr (enable, disable, and configure Last Branch Record)](https://docs.hyperdbg.org/commands/extension-commands/lbr) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.hyperdbg.org/commands/extension-commands/lbrdump.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.