From 79e63da5ba6b3836c28dfb00aff3cc7e97ec9867 Mon Sep 17 00:00:00 2001
From: Lars Brinkhoff <lars@nocrew.org>
Date: Wed, 14 Mar 2018 06:58:01 +0100
Subject: [PATCH] Add $. to debugging guide.

---
 doc/debugging.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/doc/debugging.md b/doc/debugging.md
index 0a4c68c0..3dcec371 100644
--- a/doc/debugging.md
+++ b/doc/debugging.md
@@ -17,8 +17,9 @@ Notes where exec DDT differs from timesharing DDT.
 | $B | Remove breakpoint at current location | Remove all breakpoints
 | .$B | Set breakpoint at current location
 | . | Current location
+| $. | Current value of PC
 | $Q | Last printed quantity
-| *n*/ | Open location *n* symbolically
+| *n*/ | Open location *n* symbolically (show instructions and symbols)
 | / | Open $Q
 | ^J | Open next location
 | ^ | Open previous location
@@ -29,4 +30,4 @@ Notes where exec DDT differs from timesharing DDT.
 | " | Print $Q as five ASCII characters
 | # | Print $Q as one ASCII character | N/A
 | ^N | Single step | N/A
-| $^N | Stop at next instruction | N/A
+| $^N | Stop at next instruction (skip over calls) | N/A