Loop Backward

[RuiLoureiro]

NightWare,
                I tried to compile it and this was the result:

Code Select Expand


Microsoft (R) Macro Assembler Version 6.14.8444
Copyright (C) Microsoft Corp 1981-1997.  All rights reserved.

Assembling: C:\MASM32\RuiTestes\Test323.asm
C:\MASM32\RuiTestes\Test323.asm(41) : error A2085: instruction or register not ac
cepted in current CPU mode
C:\MASM32\RuiTestes\Test323.asm(42) : error A2085: instruction or register not ac
cepted in current CPU mode
........................................
C:\MASM32\RuiTestes\Test323.asm(58) : error A2006: undefined symbol : Label01
C:\MASM32\RuiTestes\Test323.asm(71) : error A2006: undefined symbol : Label03
_
Assembly Error
Prima qualquer tecla para continuar . . .

     
                Whats wrong ?
Rui

[jdoe]

Rui,

Before using MMX instructions, the assembler must know that you will.

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; «««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««
    include \masm32\include\masm32rt.inc
    .686
    .MMX
    include \masm32\macros\timers.asm
; «««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««««


[RuiLoureiro]

Thanks  jdoe, it works

It waists 23 cycles only ! Good.

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;------------------------------------------------------------------
    counter_begin 1000000, HIGH_PRIORITY_CLASS

    mov     eax, 20
    mov     esi, offset _Str1
    mov     edi, offset _Str2
    call    Mmx_MemMove                          ; 23 cycles

    counter_end
    print ustr$(eax)," cycles",13,10


Rui

[NightWare]

rui,
if you want to make speed test, you must compare equivalent code (here there is no alignment)... add "ALIGN 16" before each procs, and you will obtain more representative results  :P

[jdoe]

rui,
if you want to make speed test, you must compare equivalent code (here there is no alignment)... add "ALIGN 16" before each procs, and you will obtain more representative results  :P

Moreover, adding few nop before a loop could help to gain few cpu clock. Some cpu are more sensitive to alignment than other but, like NightWare said, a procedure should always start by "align 16".

:U

[RuiLoureiro]

Thanks   NightWare   and  jdoe.

    Before each proc i will go to put align 16 in all my set of procs.

Now i have one problem with menus. When a program is running i cannot access the menu. The program stops to run. how to solve this problem ? Anyone know ?

Thanks
Rui

[jdoe]

Now i have one problem with menus. When a program is running i cannot access the menu. The program stops to run. how to solve this problem ? Anyone know ?

Rui,

What do you mean by "when the program is running". Only the menus are freezed or all the controls.
I could be wrong about your problem but when you start a task that takes times to execute, it is normal that a form freeze if you don't use a new thread.

[RuiLoureiro]

... when you start a task that takes times to execute, it is normal that a form freeze if you don't use a new thread.

Hi  jdoe, thank you

             Yes when it is executing a task. So, the solution is using a new thread, no ?
Rui

[jdoe]

Rui,

You have a DialogProc/WindowProc for your dialog/window ?

Suppose BTN1_ID is the OK button and BTN2_ID the Cancel button

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ThreadProc PROTO :DWORD

DialogProc PROC p_hWndDlg:DWORD, p_uMsg:DWORD, p_wParam:DWORD, p_lParam:DWORD

    mov eax, p_uMsg

    .if (eax == WM_INITDIALOG)


    .elseif (eax == WM_COMMAND)

        .if (p_wParam == BTN1_ID)

            invoke CreateThread, NULL, 0, addr ThreadProc, p_hWndDlg, 0, addr dwDummy
            invoke CloseHandle, eax

        .elseif (p_wParam == BTN2_ID)

            jmp End_Dialog

        .endif

    .elseif (eax == WM_CLOSE)

        End_Dialog:

        invoke EndDialog, p_hWndDlg, NULL

    .endif

    xor eax, eax

    ret

DialogProc ENDP

ThreadProc PROC lpParameter:DWORD

    ret

ThreadProc ENDP



Now, the thread proc can take the time it needs, the dialog won't freeze.

[RuiLoureiro]

Thank you, jdoe
                       i am going to try.
Rui