diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ff3f806..314a0c80 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@
 
 * Added array initialization syntax with `for` (not yet finalized).
 
+* Added `atascii` text codec.
+
 * Fixed several bugs, most importantly invalid offsets for branching instructions.
 
 ## 0.2.2
diff --git a/src/main/scala/millfork/parser/MfParser.scala b/src/main/scala/millfork/parser/MfParser.scala
index d281968c..06eaed5a 100644
--- a/src/main/scala/millfork/parser/MfParser.scala
+++ b/src/main/scala/millfork/parser/MfParser.scala
@@ -205,6 +205,8 @@ case class MfParser(filename: String, input: String, currentDirectory: String, o
     case (_, "petscii") => TextCodec.Petscii
     case (_, "pet") => TextCodec.Petscii
     case (_, "scr") => TextCodec.CbmScreencodes
+    case (_, "atascii") => TextCodec.Atascii
+    case (_, "atari") => TextCodec.Atascii
     case (p, x) =>
       ErrorReporting.error(s"Unknown string encoding: `$x`", Some(p))
       TextCodec.Ascii
diff --git a/src/main/scala/millfork/parser/TextCodec.scala b/src/main/scala/millfork/parser/TextCodec.scala
index a5ee46fd..8e5a8d3b 100644
--- a/src/main/scala/millfork/parser/TextCodec.scala
+++ b/src/main/scala/millfork/parser/TextCodec.scala
@@ -28,15 +28,24 @@ object TextCodec {
     "@abcdefghijklmnopqrstuvwxyz[£]↑←" +
       0x20.to(0x3f).map(_.toChar).mkString +
       "–ABCDEFGHIJKLMNOPQRSTUVWXYZ",
-    Map('^' -> 0x3E, 'π' -> 0x5E))
+    Map('^' -> 0x3E, 'π' -> 0x5E, '♥' -> 0x53, '♡' -> 0x53, '♠' -> 0x41, '♣' -> 0x58, '♢' -> 0x5A, '•' -> 0x51))
 
   val Petscii = new TextCodec("PETSCII",
     "\ufffd" * 32 +
       0x20.to(0x3f).map(_.toChar).mkString +
       "@abcdefghijklmnopqrstuvwxyz[£]↑←" +
       "–ABCDEFGHIJKLMNOPQRSTUVWXYZ",
-    Map('^' -> 0x5E, 'π' -> 0x7E)
+    Map('^' -> 0x5E, 'π' -> 0x7E, '♥' -> 0x73, '♡' -> 0x73, '♠' -> 0x61, '♣' -> 0x78, '♢' -> 0x7A, '•' -> 0x71)
   )
 
+  val Atascii = new TextCodec("ATASCII",
+    "♡" +
+    "\ufffd" * 15 +
+      "♣\ufffd–\ufffd•" +
+    "\ufffd" * 11 +
+      0x20.to(0x5f).map(_.toChar).mkString +
+      "♢abcdefghijklmnopqrstuvwxyz♠|",
+    Map('♥' -> 0, '·' -> 0x14)
+  )
 
 }