Es una edicion algo vieja, pero pues me gusto como se ve :d

Código:
;W580 SW-R8BE001
;Show full text in "View all labels" of "ServiceMenuBook"
;Pressing Key "Show"
;Now, Show label number (DEC) too.
;***Edited***
;+ Show label number (Hex)
;© k790Alex
;(e,p) anarkes
;v 1.1

include "x.inc"
include "./lib/W580_R8BE001.asm"

org 0x4501A6EC
	BLX	R1
	NOP

org 0x4501A6F0
	BL	GUIObject_SoftKeys_SetActionNText

org 0x4501A72C
	DCD	SetNewFunction_0+1

org 0x4501A74A
	LDR	R3, hook_1
	BX	R3
align 4
hook_1	DCD set2text+1

org 0x45CBB5D0
SetNewFunction_0:

	PUSH	{LR}
	MOV	R1, 3
	LDR	R0, [R4,0x18]
	LDR	R3, ListMenu_SetItemStyle_0
	BLX	R3
	LDR	R1, ACTION_SELECT
	LDR	R0, [R4,0x18]
	LDR	R2, SetNewFunction_00
	LDR	R3, ShowLNG
	POP	{PC}

align 4
ShowLNG	DCD 0x1864
ACTION_SELECT	DCD 0xFC2
SetNewFunction_00	DCD SetNewFunction+1

SetNewFunction:
	PUSH	{R0-R5,LR}
	;( STRID header_text, STRID message_text, wchar_t IconID, int style, int time, BOOK* book )
	ADD	R0, R1, 0
	;BL	ListMenu_GetSelectedItem_0
	LDR	R4, ListMenu_GetSelectedItem_0
	BLX	R4
	ADD	R5, R0, 1
	MOV	R2, 0
	MOV	R0, 0
	PUSH	{R0,R1}
	MOV	R3, 1
	LDR	R2, NOIMAGE_0
	ADD	R1, R5, 0
	LDR	R0, EMPTYSID_0
	LDR	R4,	MessageBox_0
	BLX	R4
	ADD	SP, SP, 8
	POP	{R0-R5,PC}

set2text:
	
	ADD	R7, R0, 0
	ADD	R1, R0, 0
	ADD	R0, R4, 0
	LDR	R3,	GUIonMessage_SetMenuItemText_0
	BLX	R3
	BL	MakeSecondText
	ADD	R1, R0, 0
	ADD	R0, R4, 0
	LDR	R3,	GUIonMessage_SetMenuItemSecond_0
	BLX	R3
	MOV	R5, 1
	ADD	R0, R5, 0
	POP	{R4,R5,PC}

MakeSecondText:
	PUSH	{LR}
	SUB	SP, SP, 0x14
	LDR	R4, Deec_0
	MOV	R2, 7
	MOV	R1, 6
	ADR	R0, Hex
	LDR	R3,	Str2ID_0
	BLX	R3
	STR	R0, [SP, 0xC]
	BL	MakeHexTitle
	STR	R0, [SP, 0x10]
	MOV	R2, 5
	MOV	R1, 6
	ADD	R0, R4, 0
	LDR	R3,	Str2ID_0
	BLX	R3
	STR	R0, [SP]
	ADD	R0, R7, 0
	LDR	R3,	int2strID_0
	BLX	R3
	STR	R0, [SP, 4]
	MOV	R0, 0xFF
	ADD	R0, 0xD1 ;Empty LNG
	STR	R0, [SP, 8]
	MOV	R2, 5
	MOV	R1, 5
	MOV	R0, SP
	LDR	R3,	Str2ID_0
	BLX	R3
	ADD	SP, SP, 0x14
	POP	{PC}

MakeHexTitle:
	PUSH	{LR}
	SUB	SP, SP, 0xC
	ADD	R3, R7, 0
	LDR	R2, TString
	MOV	R1, 6
	MOV	R0, SP
	PUSH	{R3}
	LDR	R3,	snwprintf_0 ;( wchar_t* buffer, int size, const wchar_t* fmt, ... )
	MOV	R12, R3
	POP	{R3}
	BLX	R12
	MOV	R2, 6
	MOV	R1, 0
	MOV	R0, SP
	LDR	R3,	Str2ID_0
	BLX	R3
	ADD	SP, SP, 0xC
	POP	{PC}

align 4
NOIMAGE_0	DCD 0xFFFF
EMPTYSID_0	DCD 0x6FFFFFFF
Deec_0	DCD Deec
ListMenu_SetItemStyle_0	DCD ListMenu_SetItemStyle+1
ListMenu_GetSelectedItem_0	DCD ListMenu_GetSelectedItem+1
MessageBox_0	DCD MessageBox+1
GUIonMessage_SetMenuItemText_0	DCD GUIonMessage_SetMenuItemText+1
GUIonMessage_SetMenuItemSecond_0	DCD GUIonMessage_SetMenuItemSecondLineText+1
Str2ID_0	DCD Str2ID+1
int2strID_0	DCD int2strID+1
snwprintf_0	DCD snwprintf+1
TString	DCD	0x4564F778 ;"%x"
Hex	DCB "Hex: 0x",0
align 4
Deec DCB "Dec: ",0