The old ASCII design can still be captivating. I used FASM in fedora to create such a design.
Read my article how can be done on my fedora blogger.
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mythcat@localhost:~/fasm$ ./fasm.x64
flat assembler version 1.73.32
...
mythcat@localhost:~/fasm$ ./fasm.x64 bootloader.asm bootloader.bin
flat assembler version 1.73.32 (16384 kilobytes memory, x64)
2 passes, 512 bytes.
mythcat@localhost:~/fasm$ qemu-system-x86_64 -drive format=raw,file=bootloader.bin
; Simple Bootloader with Menu for QEMU
; Written in FASM
org 0x7C00
format binary
start:
; Clear the screen
xor ax, ax
mov ds, ax
mov es, ax
mov ah, 0x0
int 0x10
; Display the menu
call display_menu
main_loop:
; Wait for key press
call wait_for_input
; Check key pressed
cmp al, '1'
je handle_option1
cmp al, '2'
je handle_option2
; Invalid option, restart
jmp main_loop
handle_option1:
; Option 1 selected
mov si, option1_msg
call display_message
call wait_for_input ; Wait for any key
jmp start ; Return to menu
handle_option2:
; Option 2 selected
mov si, option2_msg
call display_message
call wait_for_input ; Wait for any key
jmp start ; Return to menu
display_menu:
; Display the menu
mov si, menu
call print_string
ret
wait_for_input:
; Wait for a key press
xor ax, ax
int 0x16
ret
print_string:
; Print string at DS:SI
mov ah, 0x0E
@@:
lodsb
test al, al
jz @f
int 0x10
jmp @b
@@:
ret
display_message:
; Print message at DS:SI
call print_string
ret
menu db 'Simple Bootloader Menu', 13, 10
db '1. Option 1', 13, 10
db '2. Option 2', 13, 10
db 'Select an option: ', 0
option1_msg db 13, 10, 'You selected Option 1!', 13, 10
db 'Press any key to return to menu...', 13, 10, 0
option2_msg db 13, 10, 'You selected Option 2!', 13, 10
db 'Press any key to return to menu...', 13, 10, 0
rb 510-($-$$)
db 0x55, 0xAA
; sound player example , tested with tada.wav from windows os
; convert wav file with
; tomeko.net/online_tools/file_to_hex.php online tool
; to text from tool , then add 'db ' in the front of Sound.inc text file like this:
; db 0x52, 0x49, 0x46, 0x46,
; this : 0x52, 0x49, 0x46, 0x46, is header for RIFF WAV file format
format PE GUI 4.0
entry start
include 'INCLUDE\win32a.inc'
ID_CAPTION = 101
ID_MESSAGE = 102
ID_ICONERROR = 201
ID_ICONINFORMATION = 202
ID_ICONQUESTION = 203
ID_ICONWARNING = 204
ID_TOPMOST = 301
section '.text' code readable executable
start:
invoke GetModuleHandle,0
invoke DialogBoxParam,eax,37,HWND_DESKTOP,DialogProc,0
invoke ExitProcess,0
proc DialogProc hwnddlg,msg,wparam,lparam
push ebx esi edi
cmp [msg],WM_INITDIALOG
je .wminitdialog
cmp [msg],WM_COMMAND
je .wmcommand
cmp [msg],WM_CLOSE
je .wmclose
xor eax,eax
jmp .finish
.wminitdialog:
jmp .processed
.wmcommand:
cmp [wparam],BN_CLICKED shl 16 + IDCANCEL ; stop
je .player_stop
cmp [wparam],BN_CLICKED shl 16 + IDOK
je .player_play
jmp .processed
.player_stop:
invoke play, NULL, NULL, NULL ; stop
jmp .processed
.player_play:
invoke play, sndFile, NULL, 0x0004 or 0x0001 ; 0x0004 = SND_MEMORY + ASYNC = 0x0001
jmp .processed
.wmclose:
invoke EndDialog,[hwnddlg],0
.processed:
mov eax,1
.finish:
pop edi esi ebx
ret
endp
section '.bss' readable writeable
sndFile :
;db 'Sound.wav',0
include 'Sound.inc';
section '.idata' import data readable writeable
library kernel,'KERNEL32.DLL',\
user,'USER32.DLL',\
winmm,'winmm.dll'
import winmm,\
play, 'PlaySound'
import kernel,\
GetModuleHandle,'GetModuleHandleA',\
ExitProcess,'ExitProcess'
import user,\
DialogBoxParam,'DialogBoxParamA',\
EndDialog,'EndDialog'
section '.rsrc' resource data readable
directory RT_DIALOG,dialogs
resource dialogs,\
37,LANG_ENGLISH+SUBLANG_DEFAULT,demonstration
dialog demonstration,'SoundPlayer / _ (typedef)',70,76,110,30,WS_CAPTION+WS_POPUP+WS_SYSMENU+DS_MODALFRAME
dialogitem 'BUTTON','Play',IDOK,10,10,45,15,WS_VISIBLE
dialogitem 'BUTTON','Stop',IDCANCEL,54,10,45,15,WS_VISIBLE
enddialog
format PE GUI 4.0
include 'INCLUDE\win32w.inc'
struct GdiplusStartupInput
GdiplusVersion dd ?
DebugEventCallback dd ?
SuppressBackgroundThread dd ?
SuppressExternalCodecs dd ?
ends
struct ImageCodecInfo
Clsid db 16 dup ?
FormatID db 16 dup ?
CodecName dd ?
DllName dd ?
FormatDescription dd ?
FilenameExtension dd ?
MimeType dd ?
Flags dd ?
Version dd ?
SigCount dd ?
SizeSize dd ?
SigPattern dd ?
SigMask dd ?
ends
section '.text' code readable executable
entry $
invoke GdiplusStartup,token,input,NULL
test eax,eax
jnz exit
invoke GdipGetImageEncodersSize,encoders_count,encoders_size
test eax,eax
jnz gdiplus_shutdown
invoke VirtualAlloc,0,[encoders_size],MEM_COMMIT,PAGE_READWRITE
test eax,eax
jz gdiplus_shutdown
mov ebx,eax
invoke GdipGetImageEncoders,[encoders_count],[encoders_size],ebx
test eax,eax
jnz gdiplus_shutdown
scan_encoders:
mov esi,[ebx+ImageCodecInfo.MimeType]
mov edi,encoder_mimetype
mov ecx,(encoder_clsid-encoder_mimetype) shr 1
repe cmpsw
je encoder_found
add ebx,sizeof.ImageCodecInfo
dec [encoders_count]
jnz scan_encoders
; no encoder found
jmp gdiplus_shutdown
encoder_found:
lea esi,[ebx+ImageCodecInfo.Clsid]
mov edi,encoder_clsid
mov ecx,4
rep movsd
invoke VirtualFree,ebx,0,MEM_RELEASE
invoke GetDC,HWND_DESKTOP
test eax,eax
jz gdiplus_shutdown
mov esi,eax
invoke GetSystemMetrics,SM_CYSCREEN
mov [screen_height],eax
invoke GetSystemMetrics,SM_CXSCREEN
mov [screen_width],eax
invoke CreateCompatibleBitmap,esi,[screen_width],[screen_height]
test eax,eax
jz release_desktop_dc
mov ebx,eax
invoke CreateCompatibleDC,esi
test eax,eax
jz delete_bitmap
mov edi,eax
invoke SelectObject,edi,ebx
test eax,eax
jz delete_dc
invoke BitBlt,edi,0,0,[screen_width],[screen_height],esi,0,0,SRCCOPY
test eax,eax
jz delete_dc
invoke GdipCreateBitmapFromHBITMAP,ebx,NULL,gdip_bitmap
test eax,eax
jnz delete_dc
invoke GdipSaveImageToFile,[gdip_bitmap],file_name,encoder_clsid,NULL
invoke GdipDisposeImage,[gdip_bitmap]
delete_dc:
invoke DeleteObject,edi
delete_bitmap:
invoke DeleteObject,ebx
release_desktop_dc:
invoke ReleaseDC,HWND_DESKTOP,esi
gdiplus_shutdown:
invoke GdiplusShutdown,[token]
exit:
invoke ExitProcess,0
section '.data' data readable writeable
file_name du 'test.jpg',0
encoder_mimetype du 'image/jpeg',0
.length = $ - encoder_mimetype
encoder_clsid db 16 dup ?
input GdiplusStartupInput 1
token dd ?
memdc dd ?
gdip_bitmap dd ?
encoders_count dd ?
encoders_size dd ?
screen_width dd ?
screen_height dd ?
section '.rdata' data readable
data import
library kernel32,'KERNEL32.DLL',\
user32,'USER32.DLL',\
gdi32,'GDI32.DLL',\
gdiplus, 'GDIPLUS.DLL'
include 'INCLUDE\API\kernel32.inc'
include 'INCLUDE\API\user32.inc'
include 'INCLUDE\API\gdi32.inc'
import gdiplus,\
GdiplusStartup,'GdiplusStartup',\
GdiplusShutdown,'GdiplusShutdown',\
GdipGetImageEncodersSize,'GdipGetImageEncodersSize',\
GdipGetImageEncoders,'GdipGetImageEncoders',\
GdipSaveImageToFile,'GdipSaveImageToFile',\
GdipDisposeImage,'GdipDisposeImage',\
GdipCreateBitmapFromHBITMAP,'GdipCreateBitmapFromHBITMAP'
end data
invoke FindWindow,NULL,<'Random Pixels Screen'>
invoke FindWindow,NULL,<'Random Pixels ...'>
format pe console
entry start
include 'INCLUDE/WIN32AX.INC'
section '.code' code readable writeable executable
start:
invoke GetStdHandle,STD_OUTPUT_HANDLE
mov [stdout],eax
mov [rect.Left],0
mov [rect.Top],0
mov [rect.Right],79
mov [rect.Bottom],44
mov [coord.x],8
mov [coord.y],40
mov [cinfo.dwSize],25
mov [cinfo.bVisible],FALSE
cinvoke system,<'cls'>
cinvoke srand,<cinvoke time,NULL>
invoke SetConsoleTitle,<'Random Pixels Screen'>
invoke SetConsoleWindowInfo,[stdout],1,rect
invoke SetConsoleScreenBufferSize,[stdout],dword[coord]
invoke SetConsoleCursorInfo,[stdout],cinfo
invoke FindWindow,NULL,<'Random Pixels ...'>
mov [hWnd],eax
invoke GetDC,[hWnd]
mov [hdc],eax
@@:
cinvoke rand
shl eax,9
push eax
cinvoke rand
pop ecx
add eax,ecx
mov esi,eax
invoke SetPixel,[hdc],<stdcall rnd,640>,<stdcall rnd,100>,esi
cinvoke _kbhit
test eax,eax
jz @b
invoke ExitProcess,0
proc rnd max
cinvoke rand
shl eax,17
mul [max]
mov eax,edx
ret
endp
section '.data' data readable writeable
struc COORD {
.x dw ?
.y dw ?
}
struc SMALL_RECT {
.Left dw ?
.Top dw ?
.Right dw ?
.Bottom dw ?
}
struc LPCONSOLE_CURSOR_INFO {
.dwSize dd ?
.bVisible db ?
}
cinfo LPCONSOLE_CURSOR_INFO
rect SMALL_RECT
coord COORD
stdout dd ?
hWnd dd ?
hdc dd ?
section '.idata' import data readable writeable
library kernel32,'kernel32.dll',\
msvcrt,'msvcrt.dll',\
user32,'user32.dll',\
gdi32,'gdi32.dll'
import gdi32,\
SetPixel,'SetPixel'
import user32,\
GetDC,'GetDC',\
FindWindow,'FindWindowA'
import kernel32,\
ExitProcess,'ExitProcess',\
GetStdHandle,'GetStdHandle',\
SetConsoleTitle,'SetConsoleTitleA',\
SetConsoleCursorInfo,'SetConsoleCursorInfo',\
SetConsoleWindowInfo,'SetConsoleWindowInfo',\
SetConsoleCursorPosition,'SetConsoleCursorPosition',\
SetConsoleScreenBufferSize,'SetConsoleScreenBufferSize'
import msvcrt,\
_kbhit,'_kbhit',\
system,'system',\
srand,'srand',\
rand,'rand',\
time,'time'