diff --git a/.Docs/KERNEL.md b/.Docs/KERNEL.md
index c20a4a8b..74e7135a 100644
--- a/.Docs/KERNEL.md
+++ b/.Docs/KERNEL.md
@@ -163,18 +163,22 @@ Load a file in memory
 # FAdd,FSub,FMult,FDiv,FPwr  
 Return X+Y, X-Y, X*Y, X/Y, X^Y  
 
-##ASM  
+## ASM  
 **In:**  
 `>PUSHF X (float)`  
 `>PUSHF Y (float)`  
-`>SYSCALL fadd  
+`>SYSCALL fadd`  
+`>SYSCALL fsub`  
+`>SYSCALL fmult`  
+`>SYSCALL fdiv`  
+`>SYSCALL fpwr`  
 **Out:**  
  On stack (float)  
 
 # Log,Sqr,Exp,Cos,Sin,Tan,ATan  
 Return Log(x), Sqr(x), E^X, Cos(x), Sin(X), Tan(x), ATan(x)  
 
-##C  
+## C  
 `float log ( float x);`  
 `float sqr ( float x);`  
 `float exp ( float x);`  
@@ -183,24 +187,35 @@ Return Log(x), Sqr(x), E^X, Cos(x), Sin(X), Tan(x), ATan(x)
 `float tan ( float x);`  
 `float atan ( float x);`  
 
-##ASM  
+## ASM  
 **In:**  
 `>PUSHF x (Float)`  
 `>SYSCALL log`  
 **Out:**  
  On stack (Float)  
 
-# Float  
+# float  
 Return 'floated' long  
-**In:**  
- PUSHL = X (long)  
-**Out:**  
- On stack (Float)  
 
-# LRIntF  
-Return Float rounded into a long  
+## C  
+`float f = (float)12345678;  
+
+## ASM  
 **In:**  
- PUSHF = X (Float)  
+ `>PUSHL X` (long)  
+**Out:**  
+ On stack (float)  
+
+# lrintf  
+Return float rounded into a long  
+
+## C  
+`long int lrintf (float x);`  
+
+## ASM  
+**In:**  
+`>PUSHF x`  
+`>SYSCALL lrintf`  
 **Out:**  
  On stack (long)  
 
@@ -637,7 +652,7 @@ Rename a file
  PUSHW = Old Name  
 **Out:**  
 
-# StrToF  
+# strtof  
 Convert String to 40 bits Float  
 
 ##C  
@@ -660,6 +675,7 @@ Convert String to 40 bits Float
 ## ASM  
 **In:**  
 `>LDYA str`  
+`>SYSCALL atof`  
 **Out:**  
 On stack (float)  
 
@@ -674,12 +690,13 @@ Convert String to 32 bits (unsigned) int
 **In:**  
 `>PUSHB Base`  
 `>PUSHWI EndPtr`  
-`>LDYA str`  
+`>LDYAI str`  
+`>SYSCALL strtol`  
 **Out:**  
 On stack (long)  
 
-# AToL  
-Convert String to 32 bits int  
+# atol  
+Convert String to 32 bits long  
 
 ## C  
 `long atol ( const char * str );`  
@@ -687,29 +704,38 @@ Convert String to 32 bits int
 ## ASM  
 **In:**  
 `>LDYA str`  
+`>SYSCALL atol`  
 **Out:**  
 On stack (long)  
 
-# AToI.YA  
+# atoi  
+Convert String to 16 bits int  
 
 ## C  
 `int atoi ( const char * str );`  
 
 ## ASM  
 **In:**  
-`>LDYA str`  
+`>LDYAI str`  
+`>SYSCALL atoi`  
 **Out:**  
- Y,A = Int  
+ Y,A = int  
 
-# RealPath.YA  
+# realpath  
 Return the canonicalized absolute pathname  
+
+## C  
+`unsigned short int realpath (const char* str);`  
+
+## ASM  
 **In:**  
- Y,A = Ptr to Relative Filename (C-String)  
+`>LDYA str`  
+`>SYSCALL realpath`  
 **Out:**  
- CC : success  
-  Y,A = Ptr to Full Path (C-String)  
-  X = hMem of Full Path  
- CS : A = Error Code  
+CC : success  
+ Y,A = Ptr to Full Path (C-String)  
+ X = hMem of Full Path  
+CS : A = Error Code  
 
 # StrLen  
 Returns Length of C-String  
diff --git a/.Docs/LIBPAK.md b/.Docs/LIBPAK.md
index 804c41f0..9c4b3d59 100644
--- a/.Docs/LIBPAK.md
+++ b/.Docs/LIBPAK.md
@@ -1,12 +1,17 @@
 *** Auto generated by docgen.cmd ***  
 
 # Pak  
+**In:**  
+
+##ASM   
+PUSHW = Src PTR   
+PUSHW = Src Length   
+PUSHW = Dst PTR Output Buffer  
+PUSHW = Dst PTR S.PAKSTAT  
+
+#UnPak  
+
+##ASM  
 **In:**   
- PUSHW = Src PTR   
- PUSHW = Src Length   
- PUSHW = Dst PTR Output Buffer  
- PUSHW = Dst PTR S.PAKSTAT  
-UnPak  
-In :   
- PUSHW = Src PTR Compressed Buffer  
- PUSHW = Dst PTR  
+PUSHW = Src PTR Compressed Buffer  
+PUSHW = Dst PTR  
diff --git a/.Tools/docgen.cmd b/.Tools/docgen.cmd
index 40a48dad..3a40bd7e 100644
--- a/.Tools/docgen.cmd
+++ b/.Tools/docgen.cmd
@@ -1,5 +1,5 @@
 @echo off
-title Kernel DOC generator
+title A2osX DOC generator
 COLOR 2A
 prompt ]
 SETLOCAL ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
@@ -9,7 +9,7 @@ for /f %%a in ('copy /Z "%~f0" nul') do set "CR=%%a"
 mode con:cols=80 lines=24
 
 cls
-echo                                 Apple //e
+echo                                   Apple //e
 
 set /a c=0
 
@@ -20,11 +20,6 @@ set SRCDIR=%~dp0..\SYS
 set FILTER=KERNEL.S*.txt
 Call :SCAN
 
-set DOCFILE=%~dp0..\.Docs\LIBTCPIP.md
-set SRCDIR=%~dp0..\LIB
-set FILTER=LIBTCPIP.S*.txt
-Call :SCAN
-
 set DOCFILE=%~dp0..\.Docs\LIBBLKDEV.md
 set SRCDIR=%~dp0..\LIB
 set FILTER=LIBBLKDEV.S*.txt
@@ -35,6 +30,21 @@ set SRCDIR=%~dp0..\LIB
 set FILTER=LIBCRYPT.S*.txt
 Call :SCAN
 
+set DOCFILE=%~dp0..\.Docs\LIBGUI.md
+set SRCDIR=%~dp0..\LIB
+set FILTER=LIBGUI.S*.txt
+Call :SCAN
+
+set DOCFILE=%~dp0..\.Docs\LIBPAK.md
+set SRCDIR=%~dp0..\LIB
+set FILTER=LIBPAK.S*.txt
+Call :SCAN
+
+set DOCFILE=%~dp0..\.Docs\LIBTCPIP.md
+set SRCDIR=%~dp0..\LIB
+set FILTER=LIBTCPIP.S*.txt
+Call :SCAN
+
 echo.
 echo All done : !c! Files scanned.
 echo.
@@ -49,7 +59,6 @@ exit 0
 
 echo.
 echo Scanning %FILTER% Files...
-echo.
 
 for /f %%F in ('dir /b /ogn "%SRCDIR%\%FILTER%"') do (
  set FN=%%F
diff --git a/INC/A2osX.I.txt b/INC/A2osX.I.txt
index 9fe9fae0..5a05b424 100644
--- a/INC/A2osX.I.txt
+++ b/INC/A2osX.I.txt
@@ -279,54 +279,54 @@ S.MSTAT			.EQ 24
 *--------------------------------------
 * S.NODE
 *--------------------------------------
-S.NODE.HANDLER		.EQ 0				0=KRNL,!0=hLIB (LIBNFS,LIBTCPIP.....)
-S.NODE.T			.EQ 1
-S.NODE.T.REG			.EQ 0
-S.NODE.T.DIR			.EQ 1
-S.NODE.T.CDEV			.EQ 2
-S.NODE.T.BDEV			.EQ 3
-S.NODE.T.LNK			.EQ 4
-S.NODE.T.DSOCK			.EQ 5
-S.NODE.T.SSOCK			.EQ 6
-S.NODE.T.FIFO			.EQ 7
+S.NODE.HANDLER	.EQ 0					0=KRNL,!0=hLIB (LIBNFS,LIBTCPIP.....)
+S.NODE.T		.EQ 1
+S.NODE.T.REG		.EQ 0
+S.NODE.T.DIR		.EQ 1
+S.NODE.T.CDEV		.EQ 2
+S.NODE.T.BDEV		.EQ 3
+S.NODE.T.LNK		.EQ 4
+S.NODE.T.DSOCK		.EQ 5
+S.NODE.T.SSOCK		.EQ 6
+S.NODE.T.FIFO		.EQ 7
 *--------------------------------------
-S.NODE.REG.REF			.EQ	2
-S.NODE.REG.IOBUF		.EQ	3
+S.NODE.REG.REF		.EQ	2
+S.NODE.REG.IOBUF	.EQ	3
 *
-S.NODE.REG			.EQ 4 
+S.NODE.REG		.EQ 4 
 *--------------------------------------
-S.NODE.DIR.REF			.EQ	2
-S.NODE.DIR.IOBUF		.EQ	3
-S.NODE.DIR.EL			.EQ 4
-S.NODE.DIR.EPB			.EQ 5
-S.NODE.DIR.FC			.EQ 6			word
+S.NODE.DIR.REF		.EQ	2
+S.NODE.DIR.IOBUF	.EQ	3
+S.NODE.DIR.EL		.EQ 4
+S.NODE.DIR.EPB		.EQ 5
+S.NODE.DIR.FC		.EQ 6				word
 *
-S.NODE.DIR			.EQ 8 
+S.NODE.DIR		.EQ 8 
 *--------------------------------------
 S.NODE.DEV.ID		.EQ 2
 S.NODE.DEV.JMP		.EQ 3				word
 *
-S.NODE.DEV			.EQ 5
+S.NODE.DEV		.EQ 5
 *--------------------------------------
 * S.NODE.LNK
 *--------------------------------------
-S.NODE.SSOCK.HSKT		.EQ 2
-S.NODE.SSOCK.OPEN		.EQ 3
-S.NODE.SSOCK.CLOSE		.EQ 4
-S.NODE.SSOCK.READ		.EQ 5
-S.NODE.SSOCK.WRITE		.EQ 6
-S.NODE.SSOCK.STATUS		.EQ 7
+S.NODE.SSOCK.HSKT	.EQ 2
+S.NODE.SSOCK.OPEN	.EQ 3
+S.NODE.SSOCK.CLOSE	.EQ 4
+S.NODE.SSOCK.READ	.EQ 5
+S.NODE.SSOCK.WRITE	.EQ 6
+S.NODE.SSOCK.STATUS	.EQ 7
 *
-S.NODE.SSOCK		.EQ 8
+S.NODE.SSOCK	.EQ 8
 *--------------------------------------
-S.NODE.FIFO.S			.EQ 2
-S.NODE.FIFO.S.Opened		.EQ 1
-S.NODE.FIFO.S.Closed		.EQ 2
-S.NODE.FIFO.hMem		.EQ 3
-S.NODE.FIFO.Tail		.EQ 4
-S.NODE.FIFO.Head		.EQ 5
+S.NODE.FIFO.S		.EQ 2
+S.NODE.FIFO.S.Opened	.EQ 1
+S.NODE.FIFO.S.Closed	.EQ 2
+S.NODE.FIFO.hMem	.EQ 3
+S.NODE.FIFO.Tail	.EQ 4
+S.NODE.FIFO.Head	.EQ 5
 *
-S.NODE.FIFO			.EQ 6
+S.NODE.FIFO		.EQ 6
 *--------------------------------------
 * DEVMGR (new API) = Smartport
 *--------------------------------------
@@ -335,24 +335,24 @@ S.NODE.FIFO			.EQ 6
 *  BLK : ROM Entry point Cn($Cnff)
 *  PRT : ROM Entry point Cn($Cnff)+3
 *--------------------------------------
-S.DEV.DRV.JMP		.EQ 2
-S.DEV.S				.EQ 4
-S.DEV.S.BLOCK			.EQ %10000000
-S.DEV.S.WRITE			.EQ %01000000
-S.DEV.S.READ			.EQ %00100000
-S.DEV.S.ONLINE			.EQ %00010000
-S.DEV.S.NOFMT			.EQ %00001000
-S.DEV.S.WENABL			.EQ %00000100
-S.DEV.S.IRQ				.EQ %00000010
-S.DEV.S.OPENED			.EQ %00000001
-S.DEV.F				.EQ 5
-S.DEV.BUSID			.EQ 6
-S.DEV.DEVID			.EQ 7
-S.DEV.ROM.JMP		.EQ 8				word
+S.DEV.DRV.JMP	.EQ 2
+S.DEV.S			.EQ 4
+S.DEV.S.BLOCK		.EQ %10000000
+S.DEV.S.WRITE		.EQ %01000000
+S.DEV.S.READ		.EQ %00100000
+S.DEV.S.ONLINE		.EQ %00010000
+S.DEV.S.NOFMT		.EQ %00001000
+S.DEV.S.WENABL		.EQ %00000100
+S.DEV.S.IRQ			.EQ %00000010
+S.DEV.S.OPENED		.EQ %00000001
+S.DEV.F			.EQ 5
+S.DEV.BUSID		.EQ 6
+S.DEV.DEVID		.EQ 7
+S.DEV.ROM.JMP	.EQ 8					word
 *
-S.DEV.NAME			.EQ 11				4+\0 MAX
+S.DEV.NAME		.EQ 11					4+\0 MAX
 *
-S.DEV				.EQ 16
+S.DEV			.EQ 16
 *--------------------------------------
 IOCTL.STATUS		.EQ 0
 IOCTL.READBLOCK		.EQ 2
diff --git a/LIB/LIBPAK.S.txt b/LIB/LIBPAK.S.txt
index cf5e6d81..45b1d419 100644
--- a/LIB/LIBPAK.S.txt
+++ b/LIB/LIBPAK.S.txt
@@ -42,11 +42,12 @@ LIB.UNLOAD		clc
 				rts
 */--------------------------------------
 * # Pak
-* **In:** 
-*  PUSHW = Src PTR 
-*  PUSHW = Src Length 
-*  PUSHW = Dst PTR Output Buffer
-*  PUSHW = Dst PTR S.PAKSTAT
+* **In:**
+* ##ASM 
+* PUSHW = Src PTR 
+* PUSHW = Src Length 
+* PUSHW = Dst PTR Output Buffer
+* PUSHW = Dst PTR S.PAKSTAT
 *\--------------------------------------
 * PASS #1 : BL+REP dryrun with raw BYTE store (no bit prefix) -> Dst
 * if BL stat=0, disable BL in PASS #2
@@ -495,11 +496,12 @@ Pak.UpdateStats	inc Pak.Stat,x
 				inc Pak.Stat+1,x
 .8				rts
 */--------------------------------------
-* UnPak
-* In : 
-*  PUSHW = Src PTR Compressed Buffer
-*  PUSHW = Dst PTR
-*/--------------------------------------
+* #UnPak
+* ##ASM
+* **In:** 
+* PUSHW = Src PTR Compressed Buffer
+* PUSHW = Dst PTR
+*\--------------------------------------
 UnZPSrcPtr		.EQ ZPLIB
 UnZPDstPtr		.EQ ZPLIB+2
 UnPak.ShrtTbl	.EQ ZPLIB+4
diff --git a/SYS/KERNEL.S.D01.txt b/SYS/KERNEL.S.DRV.txt
similarity index 94%
rename from SYS/KERNEL.S.D01.txt
rename to SYS/KERNEL.S.DRV.txt
index d123202a..aa43609d 100644
--- a/SYS/KERNEL.S.D01.txt
+++ b/SYS/KERNEL.S.DRV.txt
@@ -540,6 +540,6 @@ DevMgr.SYS.BASEL	.HS	00.80.00.80.00.80.00.80.28.A8.28.A8.28.A8.28.A8.50.D0.50.D0
 DevMgr.SYS.BASEH	.HS	04.04.05.05.06.06.07.07.04.04.05.05.06.06.07.07.04.04.05.05.06.06.07.07
 *--------------------------------------
 MAN
-SAVE /A2OSX.SRC/SYS/KERNEL.S.D01
+SAVE /A2OSX.SRC/SYS/KERNEL.S.DRV
 LOAD /A2OSX.SRC/SYS/KERNEL.S
 ASM
diff --git a/SYS/KERNEL.S.MATH.txt b/SYS/KERNEL.S.MATH.txt
index 807b1cdb..d6d3a246 100644
--- a/SYS/KERNEL.S.MATH.txt
+++ b/SYS/KERNEL.S.MATH.txt
@@ -4,11 +4,17 @@ AUTO 4,1
 */--------------------------------------
 * # FAdd,FSub,FMult,FDiv,FPwr
 * Return X+Y, X-Y, X*Y, X/Y, X^Y
+* ## ASM
 * **In:**
-*  PUSHF = X (Float)
-*  PUSHF = Y (Float)
+* `>PUSHF X (float)`
+* `>PUSHF Y (float)`
+* `>SYSCALL fadd`
+* `>SYSCALL fsub`
+* `>SYSCALL fmult`
+* `>SYSCALL fdiv`
+* `>SYSCALL fpwr`
 * **Out:**
-*  On stack (Float)
+*  On stack (float)
 *\--------------------------------------
 K.FAdd			ldx #ROM.FADD
 				.HS 2C					BIT ABS
@@ -29,8 +35,18 @@ K.FPwr			ldx #ROM.PWR
 */--------------------------------------
 * # Log,Sqr,Exp,Cos,Sin,Tan,ATan
 * Return Log(x), Sqr(x), E^X, Cos(x), Sin(X), Tan(x), ATan(x)
+* ## C
+* `float log ( float x);`
+* `float sqr ( float x);`
+* `float exp ( float x);`
+* `float cos ( float x);`
+* `float sin ( float x);`
+* `float tan ( float x);`
+* `float atan ( float x);`
+* ## ASM
 * **In:**
-*  PUSHF = X (Float)
+* `>PUSHF x (Float)`
+* `>SYSCALL log`
 * **Out:**
 *  On stack (Float)
 *\--------------------------------------
@@ -54,12 +70,15 @@ K.ATan			ldx #ROM.ATAN
 				plx
 				bra MATH.Go			
 */--------------------------------------
-* # Float
+* # float
 * Return 'floated' long
+* ## C
+* `float f = (float)12345678;
+* ## ASM
 * **In:**
-*  PUSHL = X (long)
+*  `>PUSHL X` (long)
 * **Out:**
-*  On stack (Float)
+*  On stack (float)
 *\--------------------------------------
 K.Float			>PULLW FAC+1
 				>PULLW FAC+3
@@ -86,14 +105,18 @@ MATH.Go			jsr GP.ROMCALL
 				clc
 				rts
 */--------------------------------------
-* # LRIntF
-* Return Float rounded into a long
+* # lrintf
+* Return float rounded into a long
+* ## C
+* `long int lrintf (float x);`
+* ## ASM
 * **In:**
-*  PUSHF = X (Float)
+* `>PUSHF x`
+* `>SYSCALL lrintf`
 * **Out:**
 *  On stack (long)
 *\--------------------------------------
-K.LRIntF		jsr MATH.PullFAC
+K.lrintf		jsr MATH.PullFAC
 				
 				ldx #ROM.QINT
 				jsr GP.ROMCALL	
diff --git a/SYS/KERNEL.S.MEM.txt b/SYS/KERNEL.S.MEM.txt
index 348f7715..74f77cb1 100644
--- a/SYS/KERNEL.S.MEM.txt
+++ b/SYS/KERNEL.S.MEM.txt
@@ -10,13 +10,6 @@ ZPSListIBlkPtr	.EQ ZPMEMMGR+8
 ZPSListDBlkPtr 	.EQ ZPMEMMGR+10
 ZPSListKeyPtr	.EQ ZPMEMMGR+12
 ZPSListDataPtr 	.EQ ZPMEMMGR+14
-*--------------------------------------
-* TODO :
-*  - Create a 256 bytes table
-*    mapping hMem's to real memory blocks to help 
-*    Garbage collector move blocks
-*  - mem.ID=0 always used! useful to test if hMem=0
-*--------------------------------------
 */--------------------------------------
 * # GetMem0
 * **In:** 
diff --git a/SYS/KERNEL.S.STDIO.txt b/SYS/KERNEL.S.STDIO.txt
index 88a38476..95a289e3 100644
--- a/SYS/KERNEL.S.STDIO.txt
+++ b/SYS/KERNEL.S.STDIO.txt
@@ -874,16 +874,19 @@ K.SScanF.GetVAL	tya						Y=char count parsed
 */--------------------------------------
 * # FOpen
 * Open a file
+* ## C
+* `hFILE fopen ( const char * filename, short int mode, short int ftype, int auxtype );`
 * **In:**
-*  PUSHW = AUXTYPE
-*  PUSHB = TYPE
-*  PUSHB = MODE
-*   SYS.FOpen.R : if R and !exists -> ERROR
-*   SYS.FOpen.W : if W and !exists -> CREATE
-*   SYS.FOpen.A : Append
-*   SYS.FOpen.T : Open/Append in Text mode
-*   SYS.FOpen.X : Create if not exists
-*  PUSHW = PATH (PSTR)
+* ## ASM
+* `>PUSHWI auxtype`
+* `>PUSHBI ftype`
+* `>PUSHBI mode`
+*  + SYS.FOpen.R : if R and !exists -> ERROR
+*  + SYS.FOpen.W : if W and !exists -> CREATE
+*  + SYS.FOpen.A : Append
+*  + SYS.FOpen.T : Open/Append in Text mode
+*  + SYS.FOpen.X : Create if not exists
+* `>LDYAI filename`
 * **Out:** 
 *  CC : A = hFILE
 *  CS : A = EC
diff --git a/SYS/KERNEL.S.STDLIB.txt b/SYS/KERNEL.S.STDLIB.txt
index c96cef2e..dbac32fb 100644
--- a/SYS/KERNEL.S.STDLIB.txt
+++ b/SYS/KERNEL.S.STDLIB.txt
@@ -2,18 +2,19 @@ NEW
 PREFIX /A2OSX.BUILD
 AUTO 4,1
 */--------------------------------------
-* # StrToF
+* # strtof
 * Convert String to 40 bits Float
-* ## C
+* ##C
 * `float strtof (const char* str, char** endptr);`
-* ## ASM
+* ##ASM
 * **In:**
 * `>PUSHWI EndPtr`
 * `>LDYA str`
+* `>SYSCALL strtof`
 * **Out:**
 * On stack (float)
 *\--------------------------------------
-K.StrToF		>STYA TXTPTR			Ptr to source string
+K.strtof		>STYA TXTPTR			Ptr to source string
 				>PULLW ZPPtr1
 				
 				jsr K.AToF.I
@@ -32,6 +33,7 @@ K.StrToF		>STYA TXTPTR			Ptr to source string
 * ## ASM
 * **In:**
 * `>LDYA str`
+* `>SYSCALL atof`
 * **Out:**
 * On stack (float)
 *\--------------------------------------
@@ -66,7 +68,8 @@ K.AToF.I		jsr CHARGOT
 * **In:**
 * `>PUSHB Base`
 * `>PUSHWI EndPtr`
-* `>LDYA str`
+* `>LDYAI str`
+* `>SYSCALL strtol`
 * **Out:**
 * On stack (long)
 *\--------------------------------------
@@ -90,13 +93,14 @@ K.StrToUL.Exit	adc ZPPtr2
 						
 K.StrToUL.rts	rts				
 */--------------------------------------
-* # AToL
-* Convert String to 32 bits int
+* # atol
+* Convert String to 32 bits long
 * ## C
 * `long atol ( const char * str );`
 * ## ASM
 * **In:**
 * `>LDYA str`
+* `>SYSCALL atol`
 * **Out:**
 * On stack (long)
 *\--------------------------------------
@@ -124,16 +128,18 @@ K.AToL.I		jsr STDLIB.GetDec
 				
 .9				rts
 */--------------------------------------
-* # AToI.YA
+* # atoi
+* Convert String to 16 bits int
 * ## C
 * `int atoi ( const char * str );`
 * ## ASM
 * **In:**
-* `>LDYA str`
+* `>LDYAI str`
+* `>SYSCALL atoi`
 * **Out:**
-*  Y,A = Int
+*  Y,A = int
 *\--------------------------------------
-K.AToI.YA		>STYA ZPPtr2
+K.atoi			>STYA ZPPtr2
 				lda #10					base 10
 				sec						signed
 				
@@ -272,17 +278,21 @@ STDLIB.32.Clear	ldx #3
 				bpl .1
 				rts
 */--------------------------------------
-* # RealPath.YA
+* # realpath
 * Return the canonicalized absolute pathname
+* ## C
+* `unsigned short int realpath (const char* str);`
+* ## ASM
 * **In:**
-*  Y,A = Ptr to Relative Filename (C-String)
+* `>LDYA str`
+* `>SYSCALL realpath`
 * **Out:**
-*  CC : success
-*   Y,A = Ptr to Full Path (C-String)
-*   X = hMem of Full Path
-*  CS : A = Error Code
+* CC : success
+*  Y,A = Ptr to Full Path (C-String)
+*  X = hMem of Full Path
+* CS : A = Error Code
 *\--------------------------------------
-K.RealPath.YA	>STYA ZPPtr1
+K.realpath		>STYA ZPPtr1
 				ldx #$ff
 
 				lda (ZPPtr1)
diff --git a/SYS/KERNEL.S.txt b/SYS/KERNEL.S.txt
index bf244710..e07bc241 100644
--- a/SYS/KERNEL.S.txt
+++ b/SYS/KERNEL.S.txt
@@ -19,7 +19,8 @@ AUTO 4,1
 				.INB /A2OSX.SRC/X.PRINTF.S
 A2osX.MAIN		.PH $1100
 				.INB /A2OSX.SRC/SYS/KERNEL.S.CORE
-				.INB /A2OSX.SRC/SYS/KERNEL.S.D01
+				.INB /A2OSX.SRC/SYS/KERNEL.S.IO
+				.INB /A2OSX.SRC/SYS/KERNEL.S.DRV
 				.EP
 A2osX.AUX		.PH $0C00
 				.INB /A2OSX.SRC/SYS/KERNEL.S.OSD
@@ -36,6 +37,7 @@ A2osX.D1		.PH	$D000
 				.INB /A2OSX.SRC/SYS/KERNEL.S.STDLIB
 				.INB /A2OSX.SRC/SYS/KERNEL.S.PFT
 				.INB /A2OSX.SRC/SYS/KERNEL.S.DEV
+				.INB /A2OSX.SRC/SYS/KERNEL.S.FIO
 				.EP
 A2osX.D2		.PH	$D000
 				.DA #RRAMWRAMBNK2
@@ -51,8 +53,6 @@ A2osX.E0		.PH $E000
 				.INB /A2OSX.SRC/SYS/KERNEL.S.JMP
 				.INB /A2OSX.SRC/SYS/KERNEL.S.IRQ
 				.INB /A2OSX.SRC/SYS/KERNEL.S.MEM
-********* TMP *****	go to A2osX.D1		
-				.INB /A2OSX.SRC/SYS/KERNEL.S.FIO
 DevMgr.FreeMem	.EQ *
 				.EP
 A2osX.E0.E		.EQ *