diff --git a/libsrc/c128/README b/libsrc/c128/README
deleted file mode 100644
index a1af61742..000000000
--- a/libsrc/c128/README
+++ /dev/null
@@ -1,6 +0,0 @@
-Implementation notes:
-
-CONDES routines with a type code of 2 are used to implement interrupt
-handlers. Note that these are called as soon as the program is started,
-so they have to cope with this.
-
diff --git a/libsrc/cbm510/README b/libsrc/cbm510/README
deleted file mode 100644
index d22b48168..000000000
--- a/libsrc/cbm510/README
+++ /dev/null
@@ -1,8 +0,0 @@
-Implementation notes:
-
-CONDES routines with a type code of 2 are used to implement interrupt
-handlers. Note that these are called as soon as the program is started,
-so they have to cope with this. The indirect segment is set to the 
-system bank when calling interrupt routines, this must must not be changed
-when returning.
-