From 4130c969c26fe281d62e1a8fd2bcb51e7af2f26f Mon Sep 17 00:00:00 2001
From: Josh Dersch <joshd@livingcomputers.org>
Date: Wed, 29 Apr 2020 13:09:53 -0700
Subject: [PATCH] Fixed TTY send behavior.

---
 imlac/IO/TTY.cs        | 5 +++--
 imlac/notes/readme.txt | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/imlac/IO/TTY.cs b/imlac/IO/TTY.cs
index f37933e..a1aceea 100644
--- a/imlac/IO/TTY.cs
+++ b/imlac/IO/TTY.cs
@@ -84,6 +84,7 @@ namespace imlac.IO
                     Trace.Log(LogType.TTY, "o {0}", Helpers.ToOctal(_txData));
                     _dataBufferFull = false;
                     _dataSentLatch = true;
+                    _dataSendReady = true;
                 }
             }
         }
@@ -142,14 +143,14 @@ namespace imlac.IO
                     break;
 
                 case 0x22:  // TCF - clear output flag
-                    _dataSendReady = true;
+                    _dataSendReady = false;
                     break;
 
                 case 0x23:  // TPC - print, clear flag
                     if (_dataSendReady)
                     {
                         _txData = (byte)_system.Processor.AC;
-                        _dataSendReady = true;
+                        _dataSendReady = false;
                         _dataBufferFull = true;
                     }
                     break;
diff --git a/imlac/notes/readme.txt b/imlac/notes/readme.txt
index c2b08e7..177a8f1 100644
--- a/imlac/notes/readme.txt
+++ b/imlac/notes/readme.txt
@@ -12,7 +12,7 @@ sImlac currently emulates the current hardware:
 
     - Standard Imlac PDS-1D Processor / Display Processor (with 1.8us cycle timings)
     - Standard Imlac PDS-4 Processor / Display Processor (with 990ns cycle timings)
-    - up to 16KW of core memory
+    - Up to 16KW of core memory
     - Vector display (with long-persistence phosphor)
     - PTR and TTY interfaces (using physical serial ports, telnet hosts, or files as inputs)
     - Keyboard