diff --git a/TODO.txt b/TODO.txt
index bba0bcb..34e2910 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -1,9 +1,11 @@
 @update
-* call uninit() to each menu (disasm = set the next break point) !
 * fix fixed size 'space' character
 * disasm circular buffer (code only)
 * move <src/menu/disassembler/dictionary> to <src/menu/common>
+* fix tabulation
+
 
 @feature
+* display internal note (OS specific)
 * call graph export for laptop
 * night mode (refacto gui and handle color template)
diff --git a/gintrace.g3a b/gintrace.g3a
index 56fe26b..759c049 100644
Binary files a/gintrace.g3a and b/gintrace.g3a differ
diff --git a/include/gintrace/menu/disasm.h b/include/gintrace/menu/disasm.h
index 06feb6d..b168f7c 100644
--- a/include/gintrace/menu/disasm.h
+++ b/include/gintrace/menu/disasm.h
@@ -47,7 +47,6 @@ struct tracer {
 	uint16_t *memory;
 	uintptr_t next_break;
 	uintptr_t next_instruction;
-	uintptr_t spc;
 };
 
 /* extern menu information */
diff --git a/src/gui/input.c b/src/gui/input.c
index a7b618b..ee8e652 100644
--- a/src/gui/input.c
+++ b/src/gui/input.c
@@ -28,9 +28,6 @@ struct {
 		off_t cursor;
 		char *data;
 	} buffer;
-	struct {
-		int id;
-	} timer;
 } input_info;
 
 //---
@@ -46,13 +43,8 @@ void input_display(void)
 	int x;
 	int y;
 
-	/* stop the timer too avoid interrupt-loop */
-	if (input_info.timer.id >= 0)
-		timer_pause(input_info.timer.id);
-
-	/* mark special characte that the cursor is here */
-	if (input_info.cursor.visible == 1)
-		input_info.buffer.data[input_info.buffer.cursor] |= 0x80;
+	/* add cursor mark */
+	input_info.buffer.data[input_info.buffer.cursor] |= 0x80;
 
 	/* display part */
 	cursor_x = 0;
@@ -85,23 +77,8 @@ void input_display(void)
 	}
 	dupdate();
 
-
 	/* remove cursor mark */
 	input_info.buffer.data[input_info.buffer.cursor] &= ~0x80;
-
-	/* restart the timer */
-	if (input_info.timer.id >= 0)
-		timer_start(input_info.timer.id);
-}
-
-//---
-// Cursor management
-//---
-/* input_cursor_handler(): Involved at 0.5hz, blink the cursor */
-int input_cursor_handler(void) {
-	input_info.cursor.visible ^= 1;
-	input_display();
-	return (0);
 }
 
 //---
@@ -114,10 +91,6 @@ static void input_buffer_remove(void)
 	if (input_info.buffer.cursor == 0)
 		return;
 
-	/* stop the timer to avoid interrupt */
-	if (input_info.timer.id >= 0)
-		timer_pause(input_info.timer.id);
-
 	/* move data if needed */
 	if (input_info.buffer.cursor < input_info.buffer.size - 1) {
 		memcpy(
@@ -129,10 +102,6 @@ static void input_buffer_remove(void)
 	/* force NULL-char and update cursor/size */
 	input_info.buffer.cursor = input_info.buffer.cursor - 1;
 	input_info.buffer.data[--input_info.buffer.size - 1] = '\0';
-
-	/* restart the timer */
-	if (input_info.timer.id >= 0)
-		timer_start(input_info.timer.id);
 }
 
 /* input_buffer_insert() - Insert character based on current cursor position */
@@ -142,10 +111,6 @@ static int input_buffer_insert(char n)
 	if (input_info.buffer.size + 1 >= input_info.buffer.max)
 		return (-1);
 
-	/* stop the timer to avoid interrupt */
-	if (input_info.timer.id >= 0)
-		timer_pause(input_info.timer.id);
-
 	/* move data if needed */
 	if (input_info.buffer.cursor < input_info.buffer.size - 1) {
 		off_t i = input_info.buffer.size + 1;
@@ -157,10 +122,6 @@ static int input_buffer_insert(char n)
 	/* insert the character and force NULL-char */
 	input_info.buffer.data[input_info.buffer.cursor++] = n;
 	input_info.buffer.data[++input_info.buffer.size] = '\0';
-
-	/* restart the timer */
-	if (input_info.timer.id >= 0)
-		timer_start(input_info.timer.id);
 	return (0);
 }
 
@@ -268,12 +229,6 @@ int input_read(char *buffer, size_t size)
 	input_info.buffer.size = 1;
 	input_info.buffer.max = size;
 
-	/* start cursor blink timer */
-	input_info.timer.id = timer_setup(TIMER_ANY, 250000,
-					(void*)&input_cursor_handler);
-	if (input_info.timer.id >= 0)
-		timer_start(input_info.timer.id);
-
 	/* Gint workaround to freeze the current display */
 	dgetvram(&main, &secondary);
 	if (gint_vram == main) {
@@ -285,6 +240,7 @@ int input_read(char *buffer, size_t size)
 
 	/* keyboard handling */
 	while (input_info.mode.exit == 0) {
+		input_display();
 		key = getkey_opt(GETKEY_REP_ALL | GETKEY_MENU, NULL);
 		spe = input_key_handle_special(key);
 		if (spe < 0) {
@@ -293,12 +249,7 @@ int input_read(char *buffer, size_t size)
 		}
 		if (spe == 0)
 			input_key_buffer_update(key);
-		input_display();
 	}
-
-	/* stop the timer */
-	if (input_info.timer.id >= 0)
-		timer_stop(input_info.timer.id);
 	return (input_info.buffer.size);
 }
 
diff --git a/src/main.c b/src/main.c
index eb4add1..0ed4330 100644
--- a/src/main.c
+++ b/src/main.c
@@ -64,10 +64,14 @@ static void gintrace_handler(struct ucontext *context)
 /* casio_handler(): Casio handler */
 static void casio_handler(void)
 {
+#if 0
 	void (*bfile_openfile_os)(const uint16_t *filename, int mode, int p3);
 
 	bfile_openfile_os = syscall;
 	bfile_openfile_os(u"\\fls0\\dyntest", BFile_ReadOnly, 0);
+#endif
+	void (*debug_menu_filesystem)(void) = syscall;
+	debug_menu_filesystem();
 }
 
 /* main(): User entry */
@@ -82,17 +86,15 @@ int main(void)
 
 	/* get syscall address */
 	void **systab = *(void ***)0x8002007c;
-	syscall = systab[0x1da3];
+	syscall = systab[0x1e48];
 
 
 	/* intialize UBC information */
 	ubc_install();
 	ubc_set_handler(&gintrace_handler);
-	//ubc_set_breakpoint(0, (void*)0x80358a6c, NULL);
 	ubc_set_breakpoint(0, syscall, NULL);
 
 	/* try to trace the function */
-	//gint_switch((void *)0x80358a6c);	// stack menu (syscall %1e66)
 	gint_switch((void*)&casio_handler);
 
 	//TODO : destructor part !!
diff --git a/src/menu/callgraph/callgraph.c b/src/menu/callgraph.c
similarity index 97%
rename from src/menu/callgraph/callgraph.c
rename to src/menu/callgraph.c
index 4b1f7ad..78365bb 100644
--- a/src/menu/callgraph/callgraph.c
+++ b/src/menu/callgraph.c
@@ -9,7 +9,7 @@
 #include <gint/keyboard.h>
 #include <gint/display.h>
 
-#include "./src/menu/disassembler/dictionary.h"
+#include "./src/menu/internal/dictionary.h"
 
 /* define the menu information */
 /* TODO: find a way to have local information (session) */
@@ -58,13 +58,6 @@ static void callnode_display(struct callnode *node, uint32_t bitmap[4],
 
 	if (node == NULL || *row + callgraph.cursor.voffset >= GUI_DISP_NB_ROW)
 		return;
-	if (*row + callgraph.cursor.voffset < 0) {
-		*row = *row + 1;
-		callnode_display(node->child, bitmap, row, depth + 1);
-		callnode_display(node->sibling, bitmap, row, depth);
-		return;
-	}
-
 	/* handle the bitmap (ugly / 20) */
 	i = -1;
 	idx = 0;
@@ -73,7 +66,8 @@ static void callnode_display(struct callnode *node, uint32_t bitmap[4],
 		if (idx >= 4)
 			break;
 		shift = i & 0x1f;
-		if ((bitmap[idx] & (1 << shift)) != 0) {
+		if ((bitmap[idx] & (1 << shift)) != 0
+				&& *row + callgraph.cursor.voffset >= 0) {
 			dtext((2 + callgraph.cursor.hoffset + (i << 2))
 				* (FWIDTH + 1), (*row
 				+ callgraph.cursor.voffset)
@@ -108,6 +102,16 @@ static void callnode_display(struct callnode *node, uint32_t bitmap[4],
 		type = "(rts)";
 		pipe = '`';
 	}
+
+	/* skip display part */
+	if (*row + callgraph.cursor.voffset < 0) {
+		*row = *row + 1;
+		callnode_display(node->child, bitmap, row, depth + 1);
+		callnode_display(node->sibling, bitmap, row, depth);
+		return;
+	}
+
+
 	const char *addrname =
 		disasm_dictionary_check_syscalls((void*)node->address);
 	if (addrname == NULL) {
diff --git a/src/menu/context/context.c b/src/menu/context.c
similarity index 97%
rename from src/menu/context/context.c
rename to src/menu/context.c
index 55cdd00..3148400 100644
--- a/src/menu/context/context.c
+++ b/src/menu/context.c
@@ -7,8 +7,7 @@
 #include <gint/keyboard.h>
 #include <gint/display.h>
 
-/* bad architectur */
-#include "./src/menu/disassembler/dictionary.h"
+#include "./src/menu/internal/dictionary.h"
 
 /* define the menu information */
 /* TODO: find a way to have local information (session) */
diff --git a/src/menu/disassembler/disasm.c b/src/menu/disasm.c
similarity index 98%
rename from src/menu/disassembler/disasm.c
rename to src/menu/disasm.c
index fff9943..2bbd769 100644
--- a/src/menu/disassembler/disasm.c
+++ b/src/menu/disasm.c
@@ -4,7 +4,7 @@
 #include "gintrace/gui/display.h"
 #include "gintrace/gui/input.h"
 
-#include "./src/menu/disassembler/dictionary.h"
+#include "./src/menu/internal/dictionary.h"
 
 #include <gint/std/string.h>
 #include <gint/std/stdlib.h>
@@ -344,7 +344,6 @@ static void disasm_init(struct ucontext *context)
 	tracer.buffer.anchor.addr = (void*)(uintptr_t)((context->spc + 1) & ~1);
 	tracer.next_break = context->spc;
 	tracer.next_instruction = context->spc;
-	tracer.spc = context->spc;
 
 	tracer.buffer.cursor.note_idx = 0;
 	tracer.buffer.cursor.line_idx = 0;
@@ -450,6 +449,8 @@ static int disasm_keyboard(struct ucontext *context, int key)
 		tracer.next_break += 2;
 	if (key == KEY_MINUS)
 		tracer.next_break -= 2;
+	if (key == KEY_NEG)
+		tracer.next_break = (uintptr_t)tracer.buffer.anchor.addr;
 
 	/* skip instruction */
 	if (key == KEY_OPTN) {
@@ -495,11 +496,11 @@ static void disasm_command(struct ucontext *context, int argc, char **argv)
 		}
 		goto error_part;
 	}
-	if (i >= 8)
+	if (i > 8)
 		goto error_part;
 
 	if ((action & 1) == 1) {
-		tracer.spc = address & ~3;
+		tracer.buffer.anchor.addr = (void*)(address & ~1);
 		tracer.buffer.cursor.note_idx = 0;
 		tracer.buffer.cursor.line_idx = 0;
 		i = disasm_util_line_update(tracer.buffer.cursor.line_idx, -1);
diff --git a/src/menu/hexdump/hexdump.c b/src/menu/hexdump.c
similarity index 100%
rename from src/menu/hexdump/hexdump.c
rename to src/menu/hexdump.c
diff --git a/src/menu/disassembler/dictionary.h b/src/menu/internal/dictionary.h
similarity index 100%
rename from src/menu/disassembler/dictionary.h
rename to src/menu/internal/dictionary.h
diff --git a/src/menu/disassembler/dictionary/opcode.c b/src/menu/internal/dictionary/opcode.c
similarity index 99%
rename from src/menu/disassembler/dictionary/opcode.c
rename to src/menu/internal/dictionary/opcode.c
index d6db22f..ca5ac85 100644
--- a/src/menu/disassembler/dictionary/opcode.c
+++ b/src/menu/internal/dictionary/opcode.c
@@ -1,4 +1,4 @@
-#include "./src/menu/disassembler/dictionary.h"
+#include "./src/menu/internal/dictionary.h"
 #include <gint/std/stdio.h>
 
 //---
diff --git a/src/menu/disassembler/dictionary/peripherals.c b/src/menu/internal/dictionary/peripherals.c
similarity index 99%
rename from src/menu/disassembler/dictionary/peripherals.c
rename to src/menu/internal/dictionary/peripherals.c
index d758112..c56f886 100644
--- a/src/menu/disassembler/dictionary/peripherals.c
+++ b/src/menu/internal/dictionary/peripherals.c
@@ -1,4 +1,4 @@
-#include "./src/menu/disassembler/dictionary.h"
+#include "./src/menu/internal/dictionary.h"
 #include <gint/std/stdio.h>
 
 /* disasm_dictionaru_check_peripheral(): Check preipheral address */
diff --git a/src/menu/disassembler/dictionary/syscalls.c b/src/menu/internal/dictionary/syscalls.c
similarity index 99%
rename from src/menu/disassembler/dictionary/syscalls.c
rename to src/menu/internal/dictionary/syscalls.c
index 39fc4a5..c52a8cc 100644
--- a/src/menu/disassembler/dictionary/syscalls.c
+++ b/src/menu/internal/dictionary/syscalls.c
@@ -1,4 +1,4 @@
-#include "./src/menu/disassembler/dictionary.h"
+#include "./src/menu/internal/dictionary.h"
 
 #include <gint/std/stdio.h>
 
@@ -615,6 +615,12 @@ const struct sysname casio_syscalls[] = {
 	//
 	// Yatis
 	//
+	{.syscall = 0x0ea6, .name = "void Debug_menu_TestMode(void);"},
+	{.syscall = 0x0ea7, .name = "void Debug_menu_TestMode(int unknown);"},
+	{.syscall = 0x1e44, .name = "void Debug_menu_FileSystem(void);"},
+	{.syscall = 0x1e45, .name = "void Debug_menu_Fugue_OpenFileInfo(void);"},
+	{.syscall = 0x1e48, .name = "void Debug_menu_Fugue_VolumeInfo(void);"},
+	{.syscall = 0x1e49, .name = "void Debug_menu_Fugue_LogInfo(void);"},
 	{.syscall = 0x1e66, .name = "void Debug_menu_stackAndHeap(void);"},
 
 	//