diff --git a/emul/forth/z80c.bin b/emul/forth/z80c.bin
index 86b2877..913ef96 100644
Binary files a/emul/forth/z80c.bin and b/emul/forth/z80c.bin differ
diff --git a/forth/forth.asm b/forth/forth.asm
index f31284b..b76d4c0 100644
--- a/forth/forth.asm
+++ b/forth/forth.asm
@@ -967,24 +967,10 @@ OVER:
 	jp	next
 
 
-.fill 31
+.fill 112
 
-; ( a b -- c ) A + B
-	.db "+"
-	.dw $-OVER
-	.db 1
-PLUS:
-	.dw nativeWord
-	pop	hl
-	pop	de
-	call	chkPS
-	add	hl, de
-	push	hl
-	jp	next
-
-.fill 65
 	.db	"_bend"
-	.dw	$-PLUS
+	.dw	$-OVER
 	.db	5
 ; Offset: 06ee
 .out $
diff --git a/forth/icore.fs b/forth/icore.fs
index 663c843..072f4ca 100644
--- a/forth/icore.fs
+++ b/forth/icore.fs
@@ -65,7 +65,7 @@
     ( exit if null )
     DUP NOT IF DROP DROP EXIT THEN
     _c EMIT     ( a )
-    1 +         ( a+1 )
+    1 _c +         ( a+1 )
     AGAIN
 ;
 
@@ -75,13 +75,13 @@
 
 : C,
     HERE @ _c C!
-    HERE @ 1 + HERE !
+    HERE @ 1 _c + HERE !
 ;
 
 ( The NOT is to normalize the negative/positive numbers to 1
   or 0. Hadn't we wanted to normalize, we'd have written:
   32 CMP 1 - )
-: WS? 33 _c CMP 1 + NOT ;
+: WS? 33 _c CMP 1 _c + NOT ;
 
 : TOWORD
     BEGIN
@@ -99,7 +99,7 @@
         ( We take advantage of the fact that char MSB is
           always zero to pre-write our null-termination )
         OVER !                  ( a )
-        1 +                     ( a+1 )
+        1 _c +                  ( a+1 )
         C<                      ( a c )
         DUP _c WS?
     UNTIL
@@ -111,7 +111,7 @@
 
 : LITN
     ( JTBL+24 == NUMBER )
-    JTBL 24 + ,
+    JTBL 24 _c + ,
     ,
 ;
 
diff --git a/forth/z80c.fs b/forth/z80c.fs
index edf882c..d1809a5 100644
--- a/forth/z80c.fs
+++ b/forth/z80c.fs
@@ -111,6 +111,14 @@ CODE XOR
     HL PUSHqq,
 ;CODE
 
+CODE +
+    HL POPqq,
+    DE POPqq,
+    chkPS,
+    DE ADDHLss,
+    HL PUSHqq,
+;CODE
+
 CODE -
     DE POPqq,
     HL POPqq,