diff --git a/PLASMA/README.md b/PLASMA/README.md
index cc02acd9..c4969068 100644
--- a/PLASMA/README.md
+++ b/PLASMA/README.md
@@ -363,3 +363,7 @@ FORTH   http://en.wikipedia.org/wiki/Forth_(programming_language)
 
 UCSD Pascal http://wiki.freepascal.org/UCSD_Pascal
 
+p-code  https://www.princeton.edu/~achaney/tmve/wiki100k/docs/P-code_machine.html
+
+
+