266 lines
9.5 KiB
NASM
266 lines
9.5 KiB
NASM
; MINI.ASM
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; --------
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; Shows how to place data and code inside (!!!) the XM track.
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.386
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.model flat
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include ufmod.inc ; uFMOD API
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.CODE
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PE_BASE db "MENUET01"
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dd 1
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dd OFFSET _START ; Entry point
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dd OFFSET BSS_START ; End of code and initialized data
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dd OFFSET BSS_END ; End of uninitialized (BSS) data
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dd OFFSET STACK_B ; Bottom of the stack
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dd 0 ; Args
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dd 0 ; Reserved
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err_txt db "Error"
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err_txt_l EQU $ - err_txt
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_START:
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; Start playback.
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push XM_MEMORY
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push xm_length
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push BYTE PTR xm
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; Let's place the stream right inside the code section.
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xm_length EQU 905
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xm EQU $ - PE_BASE
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xm_unused_000 LABEL BYTE
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; *** The following 60 bytes are not used. So, we'll place
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; *** some code here.
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; (the actual size and location of such gaps may be
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; found out using the Eff utility)
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call uFMOD_LoadSong
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xor ebp,ebp ; global 0
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; Stack fixing is required here, but in this simple
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; example leaving ESP as it is won't harm. In a real
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; application you should uncomment the following line:
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; add esp,12
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test eax,eax
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jz error
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; Wait for user input.
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push uFMOD_WaveOut ; cbProc <- continue fetching data!
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push BYTE PTR msg_txt_l ; cbString
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push OFFSET msg_txt ; lpString
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push OFFSET msg_cap ; szCap
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call MessageBoxCB
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; add esp,16
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; Stop playback.
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call uFMOD_StopSong
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r: ; Exit.
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lea eax,[ebp-1]
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int 40h
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error:
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push ebp ; cbProc <- no callback
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push BYTE PTR err_txt_l ; cbString
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push BYTE PTR (err_txt - PE_BASE) ; lpString
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push OFFSET err_cap ; szCap
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call MessageBoxCB
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; add esp,16
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jmp r
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org xm_unused_000 + 60
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db 034h,000h,000h,000h,020h,000h,000h,000h,002h,000h,00Dh,000h,001h,000h,001h,000h
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db 00Ah,000h,091h,000h,000h,001h,002h,003h,004h,005h,006h,007h,000h,001h,002h,003h
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db 004h,005h,006h,007h,008h,009h,00Ah,00Bh,008h,009h,00Ch,00Bh,008h,009h,00Ah,00Bh
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db 008h,009h,00Ch,00Bh,009h,000h,000h,000h,000h,004h,000h,001h,000h,083h,016h,001h
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db 080h,080h,02Eh,001h,000h,00Eh,060h,080h,03Ah,001h,000h,00Eh,062h,081h,061h,083h
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db 035h,001h,009h,000h,000h,000h,000h,004h,000h,001h,000h,083h,016h,001h,080h,080h
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db 02Eh,001h,000h,00Eh,060h,080h,035h,001h,000h,00Eh,062h,081h,061h,083h,038h,001h
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db 009h,000h,000h,000h,000h,004h,000h,001h,000h,083h,016h,001h,080h,080h,02Eh,001h
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db 000h,00Eh,060h,080h,038h,001h,000h,00Eh,062h,080h,083h,033h,001h,009h,000h,000h
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db 000h,000h,006h,000h,001h,000h,083h,016h,001h,080h,080h,02Eh,001h,000h,00Eh,060h
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db 080h,033h,001h,000h,00Eh,061h,081h,061h,083h,035h,001h,083h,00Dh,001h,083h,036h
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db 001h,080h,083h,036h,001h,009h,000h,000h,000h,000h,004h,000h,001h,000h,083h,00Fh
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db 001h,080h,080h,02Eh,001h,000h,00Eh,060h,080h,036h,001h,000h,00Eh,062h,081h,061h
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db 083h,033h,001h,009h,000h,000h,000h,000h,006h,000h,001h,000h,083h,00Fh,001h,080h
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db 080h,02Eh,001h,000h,00Eh,060h,080h,033h,001h,000h,00Eh,061h,081h,061h,083h,02Eh
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db 001h,083h,012h,001h,083h,033h,001h,080h,083h,035h,001h,009h,000h,000h,000h,000h
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db 006h,000h,001h,000h,083h,016h,001h,080h,080h,02Eh,001h,000h,00Eh,060h,080h,035h
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db 001h,000h,00Eh,061h,081h,061h,083h,02Eh,001h,083h,00Dh,001h,083h,031h,001h,080h
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db 083h,02Eh,001h,009h,000h,000h,000h,000h,008h,000h,001h,000h,083h,012h,001h,098h
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db 00Ah,001h,083h,019h,001h,088h,00Ah,083h,01Eh,001h,081h,061h,083h,012h,001h,080h
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db 083h,014h,001h,080h,083h,01Bh,001h,080h,083h,020h,001h,080h,083h,014h,001h,080h
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db 009h,000h,000h,000h,000h,008h,000h,001h,000h,083h,012h,001h,081h,061h,083h,019h
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db 001h,080h,083h,01Eh,001h,080h,083h,012h,001h,080h,083h,019h,001h,083h,031h,001h
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db 083h,01Eh,001h,080h,083h,012h,001h,083h,031h,001h,083h,019h,001h,080h,009h,000h
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db 000h,000h,000h,008h,000h,001h,000h,083h,014h,001h,083h,033h,001h,083h,01Bh,001h
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db 080h,083h,020h,001h,083h,031h,001h,083h,014h,001h,080h,083h,01Bh,001h,083h,030h
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db 001h,083h,020h,001h,080h,083h,014h,001h,083h,031h,001h,083h,01Bh,001h,080h,009h
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db 000h,000h,000h,000h,008h,000h,001h,000h,083h,016h,001h,083h,030h,001h,083h,01Dh
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db 001h,083h,031h,001h,083h,022h,001h,083h,035h,001h,083h,016h,001h,098h,00Ah,001h
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db 083h,01Dh,001h,088h,00Ah,083h,022h,001h,081h,061h,083h,016h,001h,080h,083h,01Dh
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db 001h,080h,009h,000h,000h,000h,000h,008h,000h,001h,000h,083h,016h,001h,080h,083h
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db 01Dh,001h,080h,083h,022h,001h,080h,083h,016h,001h,080h,083h,018h,001h,080h,083h
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db 01Dh,001h,080h,083h,011h,001h,080h,083h,018h,001h,080h,009h,000h,000h,000h,000h
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db 008h,000h,001h,000h,083h,016h,001h,083h,030h,001h,083h,01Dh,001h,083h,031h,001h
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db 083h,019h,001h,083h,02Eh,001h,083h,016h,001h,098h,00Ah,001h,083h,01Dh,001h,088h
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db 00Ah,083h,019h,001h,081h,061h,083h,016h,001h,080h,083h,01Dh,001h,080h,0F1h,000h
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db 000h,000h
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xm_unused_001 LABEL BYTE
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; The following 23 bytes are not used.
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; So, let's place the MessageBox text and caption instead.
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; UI text messages.
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msg_txt db "uFMOD ruleZ!"
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msg_txt_l equ $ - msg_txt
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msg_cap db "MASM32",0
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err_cap db ":-(",0
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org xm_unused_001 + 23
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db 001h,000h,012h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
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db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
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db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
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db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
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db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
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db 000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h,000h
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db 000h,000h,000h,000h,000h,000h,000h,000h,040h,000h,008h,000h,02Ch,000h,00Eh,000h
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db 008h,000h,018h,000h,016h,000h,020h,000h,008h,000h,02Dh,000h,00Dh,000h,032h,000h
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db 004h,000h,03Ch,000h,007h,000h,044h,000h,004h,000h,05Ah,000h,000h,000h,064h,000h
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db 000h,000h,06Eh,000h,000h,000h,000h,000h,020h,000h,00Ah,000h,028h,000h,01Eh,000h
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db 018h,000h,032h,000h,020h,000h,03Ch,000h,020h,000h,046h,000h,020h,000h,050h,000h
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db 020h,000h,05Ah,000h,020h,000h,064h,000h,020h,000h,06Eh,000h,020h,000h,078h,000h
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db 020h,000h,082h,000h,020h,000h,009h,006h,001h,002h,004h,002h,003h,005h,001h,000h
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db 000h,000h,000h,000h,080h,000h,00Ch,000h,000h,000h,000h,000h,000h,000h,00Ch,000h
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db 000h,000h,040h,000h,001h,080h,0F9h,000h,0BFh,000h,0C3h,000h,00Ah,000h,057h,000h
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db 06Eh,000h,023h,000h
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; ----------------------------------------------------------
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; void MessageBoxCB(szCap, lpString, cbString, cbProc);
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; ----------------------------------------------------------
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; This is similar to a Win32 MessageBox. The box is centered
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; on screen. It contains a single-line text message and an
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; "OK" button. This function returns when user closes the
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; box (via the X button or via the OK button). An optional
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; callback subroutine may be specified to be called when no
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; events are pending in the event queue.
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; NOTE: Doesn't work if you already have defined a window
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; in the current process! Doesn't modify the event mask. So,
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; make sure keyboard events are enabled before calling this
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; function. This function doesn't check the validity of the
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; supplied parameters!
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; Parameters:
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; szCap - A pointer to the ASCIIz string containing the
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; caption. A trailing zero char IS required.
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; lpString - A pointer to an ASCII string containing a single
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; line message to pop up in the box. No trailing
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; zero char is required.
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; cbString - number of characters in string.
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; cbProc - Address of the callback subroutine. Can be NULL.
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sOK db "OK"
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MessageBoxCB:
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; EBP = 0
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mov esi,[esp+12] ; cbString
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mov edi,[esp+4] ; szCap
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; Get screen metrics.
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lea eax,[ebp+14]
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int 40h
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mov ecx,eax
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movzx eax,ax
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shr ecx,16 ; screen w
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xchg eax,edx ; screen h
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lea ebx,[esi*2+esi]
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lea ebx,[ebx*2+28] ; w = string len * 6 + 28
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sub ecx,ebx
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shr ecx,1
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shl ecx,16
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or ebx,ecx
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lea ecx,[ebp+52h] ; h = 52h
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sub edx,ecx
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shr edx,1
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shl edx,16
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or ecx,edx ; y = (screen h - window h) / 2
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mov edx,ebx ; x = (screen w - window w) / 2
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_MessageBoxCB_redraw:
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; Start redraw.
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push edx
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lea eax,[ebp+12]
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lea ebx,[ebp+1]
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int 40h
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; Define and draw window.
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xor eax,eax
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mov ebx,edx ; x, w (ECX: y, h)
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mov edx,34C0C0C0h ; style and BG color
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int 40h
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; Define the OK button.
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push esi
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lea eax,[ebp+8]
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sub ebx,28+0Ah
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shr bx,1
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shl ebx,16 ; x = (window w - button w) / 2
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mov bx,18+0Ah ; w = 18 + 0Ah
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mov ecx,001C0012h ; y = 1Ch, h = 12h
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lea edx,[ebp+1] ; ID = close
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mov esi,0C0C0C0h ; color
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int 40h
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; Draw the OK label.
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lea eax,[ebp+4]
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add ebx,90000h ; x = button x + 9
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mov bx,22h ; y = 22h
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xor ecx,ecx ; style, font and color
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mov edx,OFFSET sOK ; string
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lea esi,[ebp+2] ; length
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int 40h
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pop esi
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; Draw text string.
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lea eax,[ebp+4]
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mov ebx,000A000Ah ; x = 0Ah, y = 0Ah
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xor ecx,ecx ; style, font and color
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mov edx,[esp+12] ; lpString
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int 40h
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; End redraw.
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lea eax,[ebp+12]
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lea ebx,[ebp+2]
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int 40h
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_MessageBoxCB_eventloop:
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mov edx,[esp+20] ; cbProc
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test edx,edx
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lea eax,[ebp+10]
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jz _MessageBoxCB_peekevent
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; Invoke the callback.
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call edx
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lea eax,[ebp+23]
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lea ebx,[ebp+10] ; wait for at most 0.1 sec
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_MessageBoxCB_peekevent:
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int 40h
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dec eax
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js _MessageBoxCB_eventloop
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pop edx
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jz _MessageBoxCB_redraw
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ret
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.DATA?
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BSS_START LABEL BYTE
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db 1020 dup (?)
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STACK_B dd ? ; Stack bottom
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BSS_END LABEL BYTE
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END _START |