diff --git a/runtime/doc/terminal.txt b/runtime/doc/terminal.txt
index 1951229..5885cb1 100644
--- a/runtime/doc/terminal.txt
+++ b/runtime/doc/terminal.txt
@@ -1,4 +1,4 @@
-*terminal.txt*	For Vim version 8.2.  Last change: 2020 Dec 28
+*terminal.txt*	For Vim version 8.2.  Last change: 2021 Jan 04
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -1330,6 +1330,8 @@
  *:Program*    jump to the window with the running program
  *:Source*     jump to the window with the source code, create it if there
 	     isn't one
+ *:Asm*	     jump to the window with the disassembly, create it if there
+	     isn't one
 
 
 Prompt mode ~
@@ -1352,6 +1354,12 @@
 The K key is normally mapped to :Evaluate. If you do not want this use: >
 	let g:termdebug_map_K = 0
 
+<
+						*termdebug_disasm_window*
+If you want the Asm window shown by default, set this to 1. Setting to
+any value greater than 1 will set the Asm window height to that value: >
+	let g:termdebug_disasm_window = 15
+<
 
 Communication ~
 						*termdebug-communication*