diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index cc3f563..98a0da3 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -2,6 +2,18 @@
 
 # Core Language
 
+- new words
+
+  - n:add
+  - n:sub
+  - n:mul
+  - n:div
+  - n:divmod
+  - n:mod
+  - d:hash
+  - d:rehash
+  - d:Hash-Function
+
 # VM
 
 ## nga-c
@@ -10,6 +22,7 @@
 
   - global state now in a struct
   - minimal, functional FFI
+  - malloc/free support (from Rick C)
 
 # Documentation
 
@@ -17,3 +30,10 @@
 
 # Examples
 
+- port of retroforth/ilo block editor
+
+----------------------------------------------------------------
+Important notes:
+
+- future releases will use 64-bit cells by default
+----------------------------------------------------------------
diff --git a/example/amalgamate.retro b/example/amalgamate.retro
index ab73153..df1d756 100644
--- a/example/amalgamate.retro
+++ b/example/amalgamate.retro
@@ -19,12 +19,18 @@ Include compilation instructions and enable i/o devices.
 ~~~
 '/*_Build_with_`cc_-lm_-O2_retro-unix.c_-o_retro`_*/ s:put nl nl
 
-{ 'FLOATS
+'#define_BIT64 s:put nl
+
+{ 'CLOCK
   'FILES
-  'UNIX
+  'FLOATS
+  'MALLOC
+  'MULTICORE
   'RNG
-  'CLOCK
   'SCRIPTING
+  'SIGNALS
+  'UNIX
+  'UNSIGNED
 } [ '#define_ENABLE\_%s s:format s:put nl ] a:for-each nl
 ~~~
 
diff --git a/interface/malloc.retro b/interface/malloc.retro
new file mode 100644
index 0000000..8a33d4b
--- /dev/null
+++ b/interface/malloc.retro
@@ -0,0 +1,21 @@
+# Malloc
+
+~~~
+
+{{
+  :mem:invoke #15 io:scan-for io:invoke ;
+  #0              'ALLOC  const
+  #1              'FREE   const
+  #2              'STORE  const
+  #3              'FETCH  const
+
+---reveal---
+
+  :mem:alloc (n--aa) ALLOC mem:invoke ;
+  :mem:set   (an--)  STORE mem:invoke ;
+  :mem:get   (a--n)  FETCH mem:invoke ;
+  :mem:free  (aa--)  FREE  mem:invoke ;
+
+}}
+
+~~~
diff --git a/vm/nga-c/retro.c b/vm/nga-c/retro.c
index 6598a33..cadaaff 100644
--- a/vm/nga-c/retro.c
+++ b/vm/nga-c/retro.c
@@ -24,11 +24,6 @@
 #include <time.h>
 #include <unistd.h>
 
-#ifdef ENABLE_TERMINAL
-#include "linenoise.h"
-#include "linenoise.c"
-#endif
-
 #ifdef ENABLE_SIGNALS
 #include <signal.h>
 #endif
@@ -880,15 +875,6 @@ void io_filesystem(NgaState *vm) {
 }
 
 
-#ifdef ENABLE_TERMINAL
-void query_terminal(NgaState *vm) {
-}
-
-void io_termina(NgaState *vm) {
-}
-#endif
-
-
 #ifdef ENABLE_UNIX
 /*---------------------------------------------------------------------
   `unix_open_pipe()` is like `file_open()`, but for pipes. This pulls