diff --git a/.Docs/KERNEL.md b/.Docs/KERNEL.md
index 60040d45..9773245f 100644
--- a/.Docs/KERNEL.md
+++ b/.Docs/KERNEL.md
@@ -240,7 +240,7 @@ Change The type of a ProDOS File
 # open  
 
 ## C  
-`hFD open(const char *pathname, int flags);`  
+`hFD open(const char *pathname, short int flags);`  
 
 ## ASM  
 **In:**  
@@ -249,7 +249,7 @@ Change The type of a ProDOS File
 `>SYSCALL open`  
 **Out:**  
 A = hFD  
-note : if file is created on ProDOS : T=TXT,X=$0000  
+REG File created on ProDOS : T=TXT,X=$0000  
 
 # close  
 
@@ -604,20 +604,22 @@ Print A (char) to hFILE
 
 ## ASM  
 **In:**  
-A : character  
-Y : stream  
+`>PUSHB character`  
+`lda stream`  
+`>SYSCALL fputc`  
 **Out:**   
 CC = success  
 
 # PutChar  
+Print A (char) to StdOut  
 
 ## C  
 `int putchar ( int character );`  
 
 ## ASM  
-Print A (char) to StdOut  
 **In:**  
-A : char to print  
+`lda caracter`  
+`>SYSCALL putchar`  
 **Out:**   
 CC = success  
 
@@ -793,20 +795,20 @@ A = Number of arguments filled.
 Open a file  
 
 ## C  
-`hFILE fopen ( const char * filename, short int mode, short int ftype, int auxtype );`  
+`hFILE fopen ( const char * filename, short int flags, short int ftype, int auxtype );`  
 **In:**  
 
 ## ASM  
 `>PUSHWI auxtype`  
 `>PUSHBI ftype`  
-`>PUSHBI mode`  
+`>PUSHBI flags`  
  + O.RDONLY : if R and exists -> ERROR  
  + O.WRONLY : if W and exists -> CREATE  
  + O.TRUNC : Reset Size To 0  
  + O.APPEND : Append  
  + O.TEXT   : Open/Append in Text mode  
  + O.CREATE : Create if not exists  
-TODO: mode="w+,t=TYP,x=AUXTYPE"  
+TODO: replace flags/ftype/auxtype with mode="w+,t=TYP,x=AUXTYPE"  
  + r  = O_RDONLY  
  + r+ = O_RDWR  
  + w  = O_WRONLY | O_CREAT | O_TRUNC  
@@ -833,8 +835,12 @@ int fclose ( hFILE stream );
 **Out:**  
 
 # FRead  
-int fread (hFILE stream, void * ptr, int count );  
 Read bytes from file  
+
+## C  
+int fread (hFILE stream, void * ptr, int count );  
+
+## ASM  
 **In:**  
 `>PUSHWI count`  
 `>PUSHW ptr`  
@@ -938,10 +944,10 @@ Rename a file
 # strtof  
 Convert String to 40 bits Float  
 
-##C  
+## C  
 `float strtof (const char* str, char** endptr);`  
 
-##ASM  
+## ASM  
 **In:**  
 `>PUSHWI EndPtr`  
 `>LDYA str`  
@@ -1132,7 +1138,7 @@ Get System Time in Buffer
 ## C  
 `time_t time (S.TIME* timer);`  
 
-##ASM  
+## ASM  
 **In:**  
 Y,A = PTR to S.TIME  
 **Out:**  
@@ -1144,7 +1150,7 @@ S.TIME filled with System date/time
 ## C  
 `int PTime2Time (long* ptime, S.TIME* timer);`  
 
-##ASM  
+## ASM  
 **In :**   
 `>PUSHW timer`  
 `>LDYA ptime`  
@@ -1157,7 +1163,7 @@ S.TIME filled with System date/time
 ## C  
 `int CTime2Time (long* ctime, S.TIME* timer);`  
 
-##ASM  
+## ASM  
 **In :**   
 `>PUSHW timer`  
 `>LDYA ctime`  
diff --git a/.Floppies/A2OSX.BUILD.po b/.Floppies/A2OSX.BUILD.po
index 296a245c..12ec77af 100644
Binary files a/.Floppies/A2OSX.BUILD.po and b/.Floppies/A2OSX.BUILD.po differ
diff --git a/.Floppies/A2OSX.DEV.po b/.Floppies/A2OSX.DEV.po
index f0537214..556f2725 100644
Binary files a/.Floppies/A2OSX.DEV.po and b/.Floppies/A2OSX.DEV.po differ
diff --git a/.Floppies/A2OSX.SRC.po b/.Floppies/A2OSX.SRC.po
index 586bc732..9d8c8981 100644
Binary files a/.Floppies/A2OSX.SRC.po and b/.Floppies/A2OSX.SRC.po differ
diff --git a/INC/A2osX.I.txt b/INC/A2osX.I.txt
index 4252efe9..071277cd 100644
--- a/INC/A2osX.I.txt
+++ b/INC/A2osX.I.txt
@@ -105,11 +105,11 @@ SEEK.END			.EQ $04
 *--------------------------------------
 *					.EQ $00
 *					.EQ $02
-SYS.Stat			.EQ $04
-SYS.MKDir			.EQ $06
-SYS.MKNod			.EQ $08
-SYS.MKFIFO			.EQ $0A
-SYS.FStat			.EQ $0C
+SYS.FStat			.EQ $04
+SYS.Stat			.EQ $06
+SYS.MKDir			.EQ $08
+SYS.MKNod			.EQ $0A
+SYS.MKFIFO			.EQ $0C
 *					.EQ $0E
 
 SYS.OpenDir			.EQ $10
diff --git a/SYS/KERNEL.S.CTRL.txt b/SYS/KERNEL.S.CTRL.txt
index 438c76d6..53725dd2 100644
--- a/SYS/KERNEL.S.CTRL.txt
+++ b/SYS/KERNEL.S.CTRL.txt
@@ -13,23 +13,33 @@ A2osX.D1.S		.EQ A2osX.D2-A2osX.D1
 A2osX.D2.S		.EQ A2osX.E0-A2osX.D2
 A2osX.E0.S		.EQ A2osX.E0.E-A2osX.E0
 *--------------------------------------
+				.LIST OFF
 				.DO A2osX.MAIN.S>$700
+				.LIST ON
 * ERROR:MAIN too big
+				.LIST OFF
 				.FIN
 				.DO A2osX.AUX.S>$C00
+				.LIST ON
 * ERROR:AUX too big
+				.LIST OFF
 				.FIN
 				.DO	A2osX.GP.SC>$1E0
+				.LIST ON
 * ERROR:GP too big
+				.LIST OFF
 				.FIN
 				.DO A2osX.D1.S>$1000
+				.LIST ON
 * ERROR:BNK1 too big
+				.LIST OFF
 				.FIN
 				.DO A2osX.D2.S>$1000
+				.LIST ON
 * ERROR:BNK2 too big
+				.LIST OFF
 				.FIN		
 *--------------------------------------
-				.LIST OFF
 MAN
 SAVE /A2OSX.SRC/SYS/KERNEL.S.CTRL
 LOAD /A2OSX.SRC/SYS/KERNEL.S
diff --git a/SYS/KERNEL.S.INIT.txt b/SYS/KERNEL.S.INIT.txt
index aca3fe73..fe3b9d58 100644
--- a/SYS/KERNEL.S.INIT.txt
+++ b/SYS/KERNEL.S.INIT.txt
@@ -133,7 +133,7 @@ Kernel.Init3	sta SETALTZP
 
 				ldy #S.PS.hPREFIX
 				lda (pPs),y
-				>SYSCALL GetMemPtr
+				jsr K.GetMemPtr
 				 
 				>PUSHYA
 				
@@ -166,7 +166,7 @@ Kernel.Init3	sta SETALTZP
 				
 				bcs .9
 				pla
-				>SYSCALL FreeMem		...discard...
+				jsr K.FreeMem			...discard...
 				
 				>LDYAI MSG.Init3.OK
 				>SYSCALL puts
@@ -914,7 +914,7 @@ TskMgrInit		>LDYAI MSG.TSK
 				>SYSCALL puts
 
 				>LDYAI K.ENV.SIZE		get a buffer for ENV
-				>SYSCALL GetMem0		make sure blank!!
+				jsr K.GetMem0			make sure blank!!
 				bcs .9
 				
 				txa
diff --git a/SYS/KERNEL.S.IO.txt b/SYS/KERNEL.S.IO.txt
index 7648aeb0..9890a82b 100644
--- a/SYS/KERNEL.S.IO.txt
+++ b/SYS/KERNEL.S.IO.txt
@@ -4,7 +4,7 @@ AUTO 4,1
 */--------------------------------------
 * # open
 * ## C
-* `hFD open(const char *pathname, int flags);`
+* `hFD open(const char *pathname, short int flags);`
 * ## ASM
 * **In:**
 * `>PUSHB flags`
@@ -12,32 +12,149 @@ AUTO 4,1
 * `>SYSCALL open`
 * **Out:**
 * A = hFD
-* note : if file is created on ProDOS : T=TXT,X=$0000
+* REG File created on ProDOS : T=TXT,X=$0000
 *\--------------------------------------
-K.Open			jsr PFT.CheckPathYA		check if not /mnt
-
-K.Open.I		jsr STDIO.SetMLIPathYA	local pathname...
-				>PULLB K.FOpen.MODE
+K.Open.FLAGS	.BS 1
+K.Open.TYPE		.BS 1
+K.Open.AUXTYPE	.BS 2
+*--------------------------------------		
+K.Open			pha
+				>PULLB K.Open.FLAGS
+				pla
 				
+IO.Open.I		jsr STDIO.SetMLIPathYA
+				
+				lda #S.FI.T.TXT
+				sta K.Open.TYPE
+				stz K.Open.AUXTYPE
+				stz K.Open.AUXTYPE+1
+
 				ldx #5					$/DEV/ 
 				cpx K.MLI.PATH
-				bcs K.Open.REG
+				bcs .2
 				
 .1				lda K.MLI.PATH,x
 				cmp IO.DEVDIR,x
-				bne K.Open.REG
+				bne .2
 				dex
 				bne .1
 *--------------------------------------		
-K.Open.DEV		>LDYAI K.MLI.PATH+6		skip $/DEV/
+* CDEV,BDEV,DSOCK,SSOCK,PIPE
+*--------------------------------------		
+.2				>LDYAI K.MLI.PATH+6		skip $/DEV/
 	
 				jsr K.GetDevByName
-				bcs .9
+				bcs IO.OPEN.RTS
 				
 				>STYA pFD
 				stx .1+1				DEVID
 				
-				jsr K.IOCTL.GetPDrv
+				lda (pFD)				#S.FD.T
+				tax
+				jmp (.3,x)
+				
+.3				.DA STDIO.IOERR			REG
+				.DA STDIO.IOERR			DIR
+				.DA IO.OPEN.CDEV
+				.DA STDIO.IOERR			BDEV
+				.DA STDIO.IOERR			LNK
+				.DA IO.OPEN.DSOCK
+				.DA IO.OPEN.SSOCK
+				.DA IO.OPEN.PIPE
+IO.OPEN.9		sec
+IO.OPEN.RTS		rts				
+*--------------------------------------
+IO.OPEN.REG		>MLICALL MLIGETFILEINFO
+				bcc K.IO.OPEN.REG.E		Already Exists
+				
+				bit K.Open.FLAGS		Create if not exists ?
+				bpl IO.OPEN.9			No, return MLI error
+				
+				lda #S.FI.A.FULL				Yes, Create...
+				sta K.MLI.PARAMS+3		Access
+				lda K.Open.TYPE
+				sta K.MLI.PARAMS+4		File type
+				>LDYA K.Open.AUXTYPE
+				>STYA K.MLI.PARAMS+5	Aux type
+				lda #S.FI.ST.STD
+				sta K.MLI.PARAMS+7
+				
+				ldx #3
+				
+.1				lda DATELO,x
+				sta K.MLI.PARAMS+8,x
+				dex
+				bpl .1
+
+				>MLICALL MLICREATE
+				bcs IO.OPEN.RTS
+
+K.IO.OPEN.REG.E	>LDYAI S.FD.REG
+				ldx #S.MEM.F.INIT0+S.MEM.F.FD
+				jsr MEM.GetMem.YAX
+				bcs IO.OPEN.RTS
+				
+				>STYA pFD
+				stx .8+1				save hFD			
+								
+*				ldy #S.FD.T				Done by GetMem0
+*				lda #S.FD.T.REG
+*				sta (pFD),y
+				
+				jsr STDIO.SetIOBUF
+				bcs .9
+
+				>MLICALL MLIOPEN
+				bcs .9
+				
+				lda K.MLI.PARAMS+5		get ref_num
+				ldy #S.FD.REG.REF
+				sta (pFD),y
+				
+				sta K.MLI.PARAMS+1		Next MLI Calls are REF_NUM based
+				
+				lda K.Open.FLAGS
+				bit #O.WRONLY
+				beq .20					Write mode ?
+				
+				and #O.APPEND			Append ?
+				bne .11					yes, go to end of file
+				
+				stz K.MLI.PARAMS+2
+				stz K.MLI.PARAMS+3
+				stz K.MLI.PARAMS+4
+				>MLICALL MLISETEOF		no, reset size to 0
+				bra .21
+				
+.11				>MLICALL MLIGETEOF
+				bcs .9
+				
+				>MLICALL MLISETMARK
+.21				bcs .9
+				
+.20				lda K.Open.FLAGS
+				and #O.TEXT				Text Mode ?
+				beq .8
+				
+				lda #$FF
+				sta K.MLI.PARAMS+2
+				lda #C.CR
+				sta K.MLI.PARAMS+3
+				>MLICALL MLINEWLINE
+				bcs .9
+				
+.8				lda #$ff
+				rts
+
+.9				pha
+				lda .8+1
+				pha
+				jsr IO.Close.I
+				pla
+				sec
+				rts
+*--------------------------------------
+IO.OPEN.CDEV	jsr K.IOCTL.GetPDrv
 				
 .1				lda #$ff				SELF MODIFIED pass A=DEVID To Driver
 				ldx #IOCTL.OPEN
@@ -48,11 +165,13 @@ K.Open.DEV		>LDYAI K.MLI.PATH+6		skip $/DEV/
 				lda Dev.Table.hFD,x
 .9				rts				
 *--------------------------------------
-K.Open.REG		lda #S.FI.T.TXT
-				sta K.FOpen.TYPE
-				stz K.FOpen.AUXTYPE
-				stz K.FOpen.AUXTYPE+1
-				jmp K.FOpen.I
+IO.OPEN.DSOCK
+*--------------------------------------
+IO.OPEN.SSOCK
+*--------------------------------------
+IO.OPEN.PIPE
+				clc
+				rts
 */--------------------------------------
 * # close
 * ## C
@@ -62,30 +181,26 @@ K.Open.REG		lda #S.FI.T.TXT
 * `lda fd`
 * `>SYSCALL close`
 *\--------------------------------------
-K.Close			jsr K.GetMemPtr
-				bcs .9
-				
+K.Close			pha						save hFD
+				jsr K.GetMemPtr
 				>STYA pFD
 
-				lda (pFD)				#S.FD.T
+IO.Close.I		lda (pFD)				#S.FD.T
 				tax
+				pla
 				jmp (.1,x)
 				
 .1				.DA IO.CLOSE.REG
 				.DA IO.CLOSE.DIR
 				.DA IO.CLOSE.CDEV
-				.DA STDIO.IOERR			BDEV
+				.DA IO.CLOSE.BDEV
 				.DA STDIO.IOERR			LNK
 				.DA IO.CLOSE.DSOCK
 				.DA IO.CLOSE.SSOCK
 				.DA IO.CLOSE.PIPE
-
-.9				lda #MLI.E.NODEV
-				sec
-				rts
 *--------------------------------------
 IO.CLOSE.REG
-IO.CLOSE.DIR
+IO.CLOSE.DIR	pha						save hFD
 				ldy #S.FD.REG.REF
 				lda (pFD),y
 				beq .1
@@ -94,14 +209,15 @@ IO.CLOSE.DIR
 
 .1				ldy #S.FD.REG.IOBUF
 				lda (pFD),y
-				beq .8
+				beq .2
 				
+				jsr K.FreeMem
+				
+.2				pla
 				jmp K.FreeMem
-				
-.8				clc				
-				rts
 *--------------------------------------
 IO.CLOSE.CDEV
+IO.CLOSE.BDEV
 *--------------------------------------
 IO.CLOSE.DSOCK
 IO.CLOSE.SSOCK
diff --git a/SYS/KERNEL.S.JMP.txt b/SYS/KERNEL.S.JMP.txt
index 86f7fdcc..5c0a0044 100644
--- a/SYS/KERNEL.S.JMP.txt
+++ b/SYS/KERNEL.S.JMP.txt
@@ -8,11 +8,11 @@ AUTO 4,1
 *--------------------------------------
 K.SYSCALL.JMP	.DA 0					$00
 				.DA 0 
+				.DA K.FStat
 				.DA K.Stat
 				.DA K.MKDir
 				.DA K.MKNod
 				.DA K.MKFIFO
-				.DA K.FStat
 				.DA 0
 				
 				.DA K.OpenDir			$10
diff --git a/SYS/KERNEL.S.STAT.txt b/SYS/KERNEL.S.STAT.txt
index e8400ec5..ff481c88 100644
--- a/SYS/KERNEL.S.STAT.txt
+++ b/SYS/KERNEL.S.STAT.txt
@@ -3,7 +3,7 @@ PREFIX /A2OSX.BUILD
 AUTO 4,1
 *--------------------------------------
 * # FStat
-* Return information about a hfile
+* Return information about a hFILE
 * ## C
 * `int fstat(short int hFILE, struct stat *statbuf);`
 * ## ASM
@@ -14,38 +14,14 @@ AUTO 4,1
 * **Out:**
 *--------------------------------------
 K.FStat			jsr PFT.CheckNodeA
+				jsr STDIO.GetHFile
+				bcs .9
+				
+				lda Nod.Table.hPath,x
 				jsr K.GetMemPtr
+				bra K.Stat.I
 				
-				>STYA pFD
-				
-				lda #S.FD.REG
-				clc
-				adc pFD
-				tay
-				lda /S.FD.REG
-				adc pFD+1
-				jsr K.Stat.I
-				bcs .9
-				
-				ldy #S.FD.REG.REF
-				lda (pFD),y
-				sta K.MLI.PARAMS+1
-				>MLICALL MLIGETEOF
-				bcs .9
-				
-				ldy #S.STAT.SIZE+3
-				lda #0
-				sta (ZPPtr1),y
-				
-				ldx #2
-				
-.1				dey
-				lda K.MLI.PARAMS+2,x
-				sta (ZPPtr1),y
-				dex
-				bpl .1
-				
-.9				rts
+.9				>RET 2					discard statbuf
 */--------------------------------------
 * # Stat
 * Return information about a file
diff --git a/SYS/KERNEL.S.STDIO.txt b/SYS/KERNEL.S.STDIO.txt
index 5c2aab2a..d20ba97f 100644
--- a/SYS/KERNEL.S.STDIO.txt
+++ b/SYS/KERNEL.S.STDIO.txt
@@ -18,22 +18,25 @@ BCDBUF			.EQ ARG
 * `int fputc ( hFILE stream , int character );`
 * ## ASM
 * **In:**
-* A : character
-* Y : stream
+* `>PUSHB character`
+* `lda stream`
+* `>SYSCALL fputc`
 * **Out:** 
 * CC = success
 *\--------------------------------------
-K.FPutC			sta K.IOBuf
-				tya
+K.FPutC			pha
+				>PULLB K.IOBuf
+				pla
 				bra K.PutChar.1
 */--------------------------------------
 * # PutChar
+* Print A (char) to StdOut
 * ## C
 * `int putchar ( int character );`
 * ## ASM
-* Print A (char) to StdOut
 * **In:**
-* A : char to print
+* `lda caracter`
+* `>SYSCALL putchar`
 * **Out:** 
 * CC = success
 *\--------------------------------------
@@ -43,14 +46,13 @@ K.PutChar		sta K.IOBuf
 				lda	(pPs),y
 				
 K.PutChar.1		jsr STDIO.GetHFile
-				bcs K.PutS.9
+				bcs K.PutS.RTS
 
-				ldx #1
+				ldy #1
+K.PutChar.Y		lda #0
 				
-K.PutChar.X		>LDYAI K.IOBuf
-				>STYA K.S.IOCTL+S.IOCTL.BUFPTR
-				stx K.S.IOCTL+S.IOCTL.BYTECNT
-				stz K.S.IOCTL+S.IOCTL.BYTECNT+1
+				>PUSHYA
+				>PUSHWI K.IOBuf
 				jmp IO.Write.I
 */--------------------------------------
 * # PutS
@@ -64,21 +66,22 @@ K.PutChar.X		>LDYAI K.IOBuf
 * **Out:** 
 * CC = success
 *\--------------------------------------
-K.PutS			>STYA K.S.IOCTL+S.IOCTL.BUFPTR
-				>STYA ZPPtr1
+K.PutS			>PUSHYA
 				
 				ldy #S.PS.hStdOut
 				lda	(pPs),y
-				jsr K.FPutS.I
-				bcs K.PutS.9
+				jsr K.FPutS
+				bcs K.PutS.RTS
 
-				lda #13
+				lda #C.CR
 				sta K.IOBuf
-				lda #10
+				lda #C.LF
 				sta K.IOBuf+1
-				ldx #2
-				bra K.PutChar.X
-K.PutS.9		rts
+				
+				ldy #2
+				bra K.PutChar.Y
+
+K.PutS.RTS		rts
 */--------------------------------------
 * # FPutS
 * Write Str to FILE
@@ -92,34 +95,14 @@ K.PutS.9		rts
 * **Out:** 
 * CC = success
 *\--------------------------------------
-K.FPutS			pha
+K.FPutS			jsr STDIO.GetHFile
+				bcs K.PutS.RTS
 
-				>PULLA
-				sta K.S.IOCTL+S.IOCTL.BUFPTR
-				sta ZPPtr1
-				>PULLA
-				sta K.S.IOCTL+S.IOCTL.BUFPTR+1
-				sta ZPPtr1+1
-				
-				pla
-				
-K.FPutS.I		jsr STDIO.GetHFile
-				bcs K.PutS.9
-
-				ldy #0		
-				ldx #0
-				
-.1				lda (ZPPtr1),y
-				beq .2
-				
-				iny
-				bne .1
-				inx
-				inc ZPPtr1+1
-				bra .1
-				
-.2				sty K.S.IOCTL+S.IOCTL.BYTECNT
-				stx K.S.IOCTL+S.IOCTL.BYTECNT+1
+				>PULLYA					Get String
+				>STYA ZPPtr2			Save Buffer
+				>SYSCALL strlen			Get String len in Y,A
+				>PUSHYA					push len
+				>PUSHW ZPPtr2			push buffer
 				jmp IO.Write.I
 */--------------------------------------
 * # PrintF/SPrintF/FPrintF
@@ -189,8 +172,8 @@ K.SPrintF		>STYA pIOBuf			Out Buffer
 				>PULLW ZPPtr1			format
 				bra K.PrintF.1
 				
-K.FPrintF		jsr K.GetMemPtr			A = hFILE
-				>STYA pFD
+K.FPrintF		jsr STDIO.GetHFile
+				bcs K.PutS.RTS
 
 				>PULLW ZPPtr1			format
 				bra K.PrintF.0
@@ -199,15 +182,14 @@ K.PrintF		>STYA ZPPtr1			format
 				ldy #S.PS.hStdOut
 				lda	(pPs),y
 				
-				jsr K.GetMemPtr
-				>STYA pFD
+				jsr STDIO.GetHFile
+				bcs K.PutS.RTS
 	
 K.PrintF.0		>LDYAI K.IOBuf
 				>STYA pIOBuf
-				>STYA K.S.IOCTL+S.IOCTL.BUFPTR
 				
-K.PrintF.1		stz K.S.IOCTL+S.IOCTL.BYTECNT
-				stz K.S.IOCTL+S.IOCTL.BYTECNT+1
+K.PrintF.1		stz PrintF.Cnt
+				stz PrintF.Cnt+1
 
 				stz PrintF.GetByte+1
 				
@@ -269,7 +251,10 @@ K.PrintF.1		stz K.S.IOCTL+S.IOCTL.BYTECNT
 				bcc .1
 				bcs .99
 				
-.8				jsr PrintF.Flush		
+.8				lda pIOBuf+1
+				eor /K.IOBuf
+				bne .99
+				jsr PrintF.Flush		
 				bra .99
 
 .10				cmp #'\'
@@ -299,7 +284,11 @@ K.PrintF.1		stz K.S.IOCTL+S.IOCTL.BYTECNT
 				sta pStack				CC
 				pla
 				plp
-				rts
+				bcs .9
+				
+				>LDYA PrintF.Cnt
+				
+.9				rts
 *--------------------------------------
 PrintF.ESC		jmp	(.1,x)
 .1				.DA PrintF.B,PrintF.BB
@@ -646,9 +635,9 @@ PrintF.GetByte	lda #$FF				SELF MODIFIED LStack Ptr
 *--------------------------------------
 PrintF.COut		phy
 				
-				ldy K.S.IOCTL+S.IOCTL.BYTECNT
+				ldy PrintF.Cnt
 				sta (pIOBuf),y
-				inc K.S.IOCTL+S.IOCTL.BYTECNT
+				inc PrintF.Cnt
 				bne .8
 				
 				lda pIOBuf+1
@@ -657,25 +646,29 @@ PrintF.COut		phy
 
 *				we are printing to IObuf, flush!
 
-				lda K.S.IOCTL+S.IOCTL.BYTECNT+1
+				lda PrintF.Cnt+1
 				pha
 				lda #1					Flush $100 bytes
-				sta K.S.IOCTL+S.IOCTL.BYTECNT+1
+				sta PrintF.Cnt+1
 				
+				jsr PrintF.Flush
 
 				pla
 				inc
-				sta K.S.IOCTL+S.IOCTL.BYTECNT+1
-
+				sta PrintF.Cnt+1
 				
 .7				inc pIOBuf+1
-				inc K.S.IOCTL+S.IOCTL.BYTECNT+1
+				inc PrintF.Cnt+1
 				
 .8				ply
 				clc
 				rts
 *--------------------------------------
-PrintF.Flush	jmp IO.Write.I
+PrintF.Flush	>PUSHW PrintF.Cnt
+				>PUSHWI K.IOBuf
+				jmp IO.Write.I
+*--------------------------------------
+PrintF.Cnt		.BS 2
 */--------------------------------------
 * # FGetS
 * read bytes from stream into the array
@@ -953,19 +946,19 @@ K.SScanF.Fwd	tya						Y=char count parsed
 * # FOpen
 * Open a file
 * ## C
-* `hFILE fopen ( const char * filename, short int mode, short int ftype, int auxtype );`
+* `hFILE fopen ( const char * filename, short int flags, short int ftype, int auxtype );`
 * **In:**
 * ## ASM
 * `>PUSHWI auxtype`
 * `>PUSHBI ftype`
-* `>PUSHBI mode`
+* `>PUSHBI flags`
 *  + O.RDONLY : if R and !exists -> ERROR
 *  + O.WRONLY : if W and !exists -> CREATE
 *  + O.TRUNC : Reset Size To 0
 *  + O.APPEND : Append
 *  + O.TEXT   : Open/Append in Text mode
 *  + O.CREATE : Create if not exists
-* TODO: mode="w+,t=TYP,x=AUXTYPE"
+* TODO: replace flags/ftype/auxtype with mode="w+,t=TYP,x=AUXTYPE"
 *  + r  = O_RDONLY
 *  + r+ = O_RDWR
 *  + w  = O_WRONLY | O_CREAT | O_TRUNC
@@ -979,110 +972,34 @@ K.SScanF.Fwd	tya						Y=char count parsed
 *  CC : A = hFILE
 *  CS : A = EC
 *\--------------------------------------
+K.FOpen.PATH	.BS 2
+*--------------------------------------
 K.FOpen			jsr PFT.CheckPathYA
+
 				>STYA K.FOpen.PATH
-				jsr STDIO.SetMLIPathYA
-				>PULLB K.FOpen.MODE
-				>PULLB K.FOpen.TYPE
-				>PULLW K.FOpen.AUXTYPE
+				pha
+				>PULLB K.Open.FLAGS
+				>PULLB K.Open.TYPE
+				>PULLW K.Open.AUXTYPE
 
-K.FOpen.I		>MLICALL MLIGETFILEINFO
-				bcc K.FOpen.10			Already Exists
+				pla
+				jsr IO.Open.I
+				bcs K.FOpen.RTS
 				
-				bit K.FOpen.MODE		Create if not exists ?
-				bpl K.FOpen.9			No, return MLI error
+				sta .1+1				save hFD
+				tax
 				
-				lda #S.FI.A.FULL				Yes, Create...
-				sta K.MLI.PARAMS+3	Access
-				lda K.FOpen.TYPE
-				sta K.MLI.PARAMS+4	File type
-				>LDYA K.FOpen.AUXTYPE
-				>STYA K.MLI.PARAMS+5	Aux type
-				lda #S.FI.ST.STD
-				sta K.MLI.PARAMS+7
-				
-				ldx #3
-				
-.1				lda DATELO,x
-				sta K.MLI.PARAMS+8,x
-				dex
-				bpl .1
-
-				>MLICALL MLICREATE
-				bcc K.FOpen.10
-K.FOpen.9		rts
-
-K.FOpen.10		>LDYAI S.FD.REG
-				ldx #S.MEM.F.INIT0+S.MEM.F.FD
-				jsr MEM.GetMem.YAX
-				bcs K.FOpen.9
-				
-				>STYA pFD
-				stx .8+1			
-								
-*				ldy #S.FD.T			Done by GetMem0
-*				lda #S.FD.T.REG
-*				sta (pFD),y
-				
-				jsr STDIO.SetIOBUF
-				bcs .98
-
-				>MLICALL MLIOPEN
-				bcs .98
-				
-				lda K.MLI.PARAMS+5		get ref_num
-				ldy #S.FD.REG.REF
-				sta (pFD),y
-				
-				sta K.MLI.PARAMS+1		Next MLI Calls are REF_NUM based
-				
-				lda K.FOpen.MODE
-				bit #O.WRONLY
-				beq .20					Write mode ?
-				
-				and #O.APPEND			Append ?
-				bne .11					yes, go to end of file
-				
-				stz K.MLI.PARAMS+2
-				stz K.MLI.PARAMS+3
-				stz K.MLI.PARAMS+4
-				>MLICALL MLISETEOF		no, reset size to 0
-				bra .21
-				
-.11				>MLICALL MLIGETEOF
-				bcs .98
-				
-				>MLICALL MLISETMARK
-.21				bcs .98
-				
-.20				lda K.FOpen.MODE
-				and #O.TEXT				Text Mode ?
-				beq .22
-				
-				lda #$FF
-				sta K.MLI.PARAMS+2
-				lda #C.CR
-				sta K.MLI.PARAMS+3
-				>MLICALL MLINEWLINE
-
-.22				>LDYA K.FOpen.PATH
- 
-.8				ldx #$ff				Self Modified, hFD
+				>LDYA K.FOpen.PATH
 
 				jsr STDIO.NewHFileYAX
-				bcc .80
+				bcc K.FOpen.RTS
 				
-.98				pha						save MLI error
-				lda .8+1
+				pha						save MLI error
+.1				lda #$ff				SELF MODIFIED
 				jsr K.Close
 				pla						get back MLI error
 				sec
-.80				rts
-*--------------------------------------
-K.FOpen.PATH	.BS 2
-K.FOpen.MODE	.BS 1
-K.FOpen.TYPE	.BS 1
-K.FOpen.AUXTYPE	.BS 2
+K.FOpen.RTS		rts
 */--------------------------------------
 * # FClose
 * Close a file
@@ -1118,8 +1035,10 @@ K.FClose		jsr PFT.CheckNodeA
 				rts
 */--------------------------------------
 * # FRead
-* int fread (hFILE stream, void * ptr, int count );
 * Read bytes from file
+* ## C
+* int fread (hFILE stream, void * ptr, int count );
+* ## ASM
 * **In:**
 * `>PUSHWI count`
 * `>PUSHW ptr`
diff --git a/SYS/KERNEL.S.STDLIB.txt b/SYS/KERNEL.S.STDLIB.txt
index 470a37b9..b24466eb 100644
--- a/SYS/KERNEL.S.STDLIB.txt
+++ b/SYS/KERNEL.S.STDLIB.txt
@@ -4,9 +4,9 @@ AUTO 4,1
 */--------------------------------------
 * # strtof
 * Convert String to 40 bits Float
-* ##C
+* ## C
 * `float strtof (const char* str, char** endptr);`
-* ##ASM
+* ## ASM
 * **In:**
 * `>PUSHWI EndPtr`
 * `>LDYA str`
diff --git a/SYS/KERNEL.S.TIME.txt b/SYS/KERNEL.S.TIME.txt
index c822e746..ecc0d2db 100644
--- a/SYS/KERNEL.S.TIME.txt
+++ b/SYS/KERNEL.S.TIME.txt
@@ -13,7 +13,7 @@ DAY0			.EQ 4					day 0 was a thursday
 * Get System Time in Buffer
 * ## C
 * `time_t time (S.TIME* timer);`
-* ##ASM
+* ## ASM
 * **In:**
 * Y,A = PTR to S.TIME
 * **Out:**
@@ -29,7 +29,7 @@ K.Time			>STYA ZPPtr2
 *  Convert ProDOS Time To S.TIME
 * ## C
 * `int PTime2Time (long* ptime, S.TIME* timer);`
-* ##ASM
+* ## ASM
 * **In :** 
 * `>PUSHW timer`
 * `>LDYA ptime`
@@ -164,7 +164,7 @@ K.ComputeWDAY	lda #3					Thursday : 4 (-1 for mod 7)
 *  Convert CTime Time To S.TIME
 * ## C
 * `int CTime2Time (long* ctime, S.TIME* timer);`
-* ##ASM
+* ## ASM
 * **In :** 
 * `>PUSHW timer`
 * `>LDYA ctime`
diff --git a/SYS/KERNEL.S.txt b/SYS/KERNEL.S.txt
index a3c25559..f2fb6ff6 100644
--- a/SYS/KERNEL.S.txt
+++ b/SYS/KERNEL.S.txt
@@ -1,64 +1,64 @@
 NEW
 PREFIX /A2OSX.BUILD
 AUTO 4,1
-				.LIST OFF
-				.OP	65C02
-				.OR	$2000
-				.TF SYS/KERNEL
+			.LIST OFF
+			.OP	65C02
+			.OR	$2000
+			.TF SYS/KERNEL
 
-				.INB INC/MACROS.I
-				.INB INC/KERNEL.I
-				.INB INC/A2OSX.I
-				.INB INC/IO.I
-				.INB INC/MLI.I
-				.INB INC/MLI.E.I
-				.INB INC/XY.MOUSE.I
-				.INB INC/GUI.I
-				
-				.INB /A2OSX.SRC/SYS/KERNEL.S.INIT
-				.INB /A2OSX.SRC/X.PRINTF.S
+			.INB INC/MACROS.I
+			.INB INC/KERNEL.I
+			.INB INC/A2OSX.I
+			.INB INC/IO.I
+			.INB INC/MLI.I
+			.INB INC/MLI.E.I
+			.INB INC/XY.MOUSE.I
+			.INB INC/GUI.I
+			
+			.INB /A2OSX.SRC/SYS/KERNEL.S.INIT
+			.INB /A2OSX.SRC/X.PRINTF.S
 
-A2osX.MAIN		.PH $1100
-				.INB /A2OSX.SRC/SYS/KERNEL.S.CORE
-				.INB /A2OSX.SRC/SYS/KERNEL.S.DRV
-				.EP
-A2osX.AUX		.PH $0C00
-				.INB /A2OSX.SRC/SYS/KERNEL.S.OSD
-				.INB /A2OSX.SRC/SYS/KERNEL.S.SLIST
-				.EP
-A2osX.GP		.PH $BD00
-				.INB /A2OSX.SRC/SYS/KERNEL.S.GP
-				.EP
-A2osX.D1		.PH	$D000
-				.DA #RRAMWRAMBNK1
-				.INB /A2OSX.SRC/SYS/KERNEL.S.STAT
-				.INB /A2OSX.SRC/SYS/KERNEL.S.DIRENT
-				.INB /A2OSX.SRC/SYS/KERNEL.S.STDIO
-				.INB /A2OSX.SRC/SYS/KERNEL.S.STDLIB
-				.INB /A2OSX.SRC/SYS/KERNEL.S.PFT
-				.INB /A2OSX.SRC/SYS/KERNEL.S.DEV
-				.EP
-A2osX.D2		.PH	$D000
-				.DA #RRAMWRAMBNK2
-				.INB /A2OSX.SRC/SYS/KERNEL.S.STRING
-				.INB /A2OSX.SRC/SYS/KERNEL.S.TIME
-				.INB /A2OSX.SRC/SYS/KERNEL.S.BIN
-				.INB /A2OSX.SRC/SYS/KERNEL.S.PS
-				.INB /A2OSX.SRC/SYS/KERNEL.S.ARG
-				.INB /A2OSX.SRC/SYS/KERNEL.S.ENV
-				.INB /A2OSX.SRC/SYS/KERNEL.S.MATH
-				.EP
-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
+A2osX.MAIN	.PH $1100
+			.INB /A2OSX.SRC/SYS/KERNEL.S.CORE
+			.INB /A2OSX.SRC/SYS/KERNEL.S.DRV
+			.EP
+A2osX.AUX	.PH $0C00
+			.INB /A2OSX.SRC/SYS/KERNEL.S.OSD
+			.INB /A2OSX.SRC/SYS/KERNEL.S.SLIST
+			.EP
+A2osX.GP	.PH $BD00
+			.INB /A2OSX.SRC/SYS/KERNEL.S.GP
+			.EP
+A2osX.D1	.PH	$D000
+			.DA #RRAMWRAMBNK1
+			.INB /A2OSX.SRC/SYS/KERNEL.S.STAT
+			.INB /A2OSX.SRC/SYS/KERNEL.S.DIRENT
+			.INB /A2OSX.SRC/SYS/KERNEL.S.STDIO
+			.INB /A2OSX.SRC/SYS/KERNEL.S.STDLIB
+			.INB /A2OSX.SRC/SYS/KERNEL.S.PFT
+			.INB /A2OSX.SRC/SYS/KERNEL.S.DEV
+			.EP
+A2osX.D2	.PH	$D000
+			.DA #RRAMWRAMBNK2
+			.INB /A2OSX.SRC/SYS/KERNEL.S.STRING
+			.INB /A2OSX.SRC/SYS/KERNEL.S.TIME
+			.INB /A2OSX.SRC/SYS/KERNEL.S.BIN
+			.INB /A2OSX.SRC/SYS/KERNEL.S.PS
+			.INB /A2OSX.SRC/SYS/KERNEL.S.ARG
+			.INB /A2OSX.SRC/SYS/KERNEL.S.ENV
+			.INB /A2OSX.SRC/SYS/KERNEL.S.MATH
+			.EP
+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.IO
-				.INB /A2OSX.SRC/SYS/KERNEL.S.FIO
+			.INB /A2OSX.SRC/SYS/KERNEL.S.IO
+			.INB /A2OSX.SRC/SYS/KERNEL.S.FIO
 DevMgr.FreeMem	.EQ *
-				.EP
-A2osX.E0.E		.EQ *
-				.INB /A2OSX.SRC/SYS/KERNEL.S.CTRL
+			.EP
+A2osX.E0.E	.EQ *
+			.INB /A2OSX.SRC/SYS/KERNEL.S.CTRL
 MAN
 SAVE /A2OSX.SRC/SYS/KERNEL.S
 ASM