diff --git a/.Floppies/A2OSX.BUILD.po b/.Floppies/A2OSX.BUILD.po
index 494f157d..6b8c1884 100644
Binary files a/.Floppies/A2OSX.BUILD.po and b/.Floppies/A2OSX.BUILD.po differ
diff --git a/BIN/ACOS.S.CORE.txt b/BIN/ACOS.S.CORE.txt
index 01b0f82b..034f5061 100644
--- a/BIN/ACOS.S.CORE.txt
+++ b/BIN/ACOS.S.CORE.txt
@@ -365,7 +365,7 @@ CORE.LookupOPS	lda (ZPInputBufPtr)
 				bcc .2					not last char in this keyword
 
 				jsr .10					next char in text...
-				bcc .4					valid....failed
+				bcc .6					valid....failed
 
 .3				tya						Keyword Len
 
diff --git a/BIN/ACOS.S.EXP.txt b/BIN/ACOS.S.EXP.txt
index 43916054..54025dad 100644
--- a/BIN/ACOS.S.EXP.txt
+++ b/BIN/ACOS.S.EXP.txt
@@ -257,6 +257,7 @@ EXP.VARLookup	>LDA.G hVars
 				rts
 *--------------------------------------
 EXP.ComputeY	lda EXP.TYPE
+
 				bne .1
 
 				ldx ACOS.OPS2FPU,y
@@ -264,7 +265,33 @@ EXP.ComputeY	lda EXP.TYPE
 				clc
 				rts
 				
-.1				sec
+.1				stz EXP.TYPE			at the end ....TRUE/FALSE is int
+	
+				cpy #3					+
+				bne .2
+				
+				ldx #SYS.StrCat
+				clc
+				jmp CODE.SYSCALL
+
+.2				cpy #11					<>
+				bne .3
+				
+				ldx #SYS.StrCmp
+				clc
+				jmp CODE.SYSCALL
+				
+.3				cpy #13					=
+				bne .9
+								
+				ldx #SYS.StrCmp
+				jsr CODE.SYSCALL
+
+				ldx #RT.NOT.ID
+				clc
+				jmp CODE.JSRRT	
+
+.9				sec
 				rts
 *--------------------------------------
 MAN
diff --git a/BIN/ACOS.S.FN.txt b/BIN/ACOS.S.FN.txt
index beb5e419..a0199b66 100644
--- a/BIN/ACOS.S.FN.txt
+++ b/BIN/ACOS.S.FN.txt
@@ -80,13 +80,11 @@ FN.LEN			jsr CORE.CheckOP
 				jsr CORE.CheckCP
 				bcs .99
 
-				ldx #RT.LEN.ID
-				jsr CODE.JSRRT
-
 				stz EXP.TYPE
 
+				ldx #RT.LEN.ID
 				clc
-				rts
+				jmp CODE.JSRRT
 
 .90				lda #E.TMISMATCH
 				sec
@@ -114,14 +112,12 @@ FN.STRd			jsr CORE.CheckOP
 				jsr CORE.CheckCP
 				bcs .99
 
-				ldx #RT.STRd.ID
-				jsr CODE.JSRRT
-
 				lda #'$'
 				sta EXP.TYPE
 
+				ldx #RT.STRd.ID
 				clc
-				rts
+				jmp CODE.JSRRT
 
 .90				lda #E.TMISMATCH
 				sec
@@ -139,13 +135,11 @@ FN.VAL			jsr CORE.CheckOP
 				jsr CORE.CheckCP
 				bcs .99
 
-				ldx #RT.VAL.ID
-				jsr CODE.JSRRT
-
 				stz EXP.TYPE
 
-				clc
-				rts
+				ldx #RT.VAL.ID
+*				clc
+				jmp CODE.JSRRT
 
 .90				lda #E.TMISMATCH
 				sec
diff --git a/BIN/ACOS.S.KW.txt b/BIN/ACOS.S.KW.txt
index ce3f6ed9..9259920c 100644
--- a/BIN/ACOS.S.KW.txt
+++ b/BIN/ACOS.S.KW.txt
@@ -39,10 +39,8 @@ KW.GET			jsr CORE.GetNextCharNB
 				jsr CODE.LDYXI
 				
 				ldx #RT.StrSet.ID
-				jsr CODE.JSRRT	
-				
 				clc
-				rts
+				jmp CODE.JSRRT	
 
 .9				lda #E.CSYN
 				sec
@@ -219,10 +217,8 @@ KW.INPUT		jsr CORE.GetNextCharNB
 				jsr CODE.LDYXI
 				
 				ldx #RT.StrSet.ID
-				jsr CODE.JSRRT	
-				
 				clc
-				rts
+				jmp CODE.JSRRT
 
 .9				lda #E.CSYN
 				sec
diff --git a/BIN/ACOS.S.RT.txt b/BIN/ACOS.S.RT.txt
index a3f35573..4eff8652 100644
--- a/BIN/ACOS.S.RT.txt
+++ b/BIN/ACOS.S.RT.txt
@@ -2,6 +2,18 @@ NEW
   AUTO 3,1
 				.LIST OFF
 *--------------------------------------
+RT.NOT			lda (pStack)
+				inc
+				ora (pStack)
+				beq .1
+
+				lda #1
+	
+.1				dec
+				sta (pStack)
+				>PUSHA
+				rts
+*--------------------------------------
 RT.StrSet		>PUSHB hStrings
 				txa
 				>PUSHA
diff --git a/BIN/ACOS.S.txt b/BIN/ACOS.S.txt
index 886a4cc9..44630699 100644
--- a/BIN/ACOS.S.txt
+++ b/BIN/ACOS.S.txt
@@ -193,6 +193,8 @@ RT.TIMEd.ID		.EQ *-J.RT
 RT.VAL.ID		.EQ *-J.RT
 				.DA RT.VAL
 *--------------------------------------
+RT.NOT.ID		.EQ *-J.RT
+				.DA RT.NOT
 RT.StrSet.ID	.EQ *-J.RT
 				.DA RT.StrSet
 RT.StrGet.ID	.EQ *-J.RT
@@ -514,7 +516,6 @@ ACOS.OPS		.AT "*"
 				.AT "<>"
 				.AT "><"
 				.AT "="
-*			.AT "NOT"
 				.AT "AND"
 				.AT "OR"
 				.HS 00