Hello,
How to make a macro that chose one of two macros without arguments ?
Thank you !
Useless example :
mov eax, 1
mov ebx, 2
mov edi, 3
mov esi, 4
random ; macro chosen macro_1 or macro_2 without argument
invoke sleep, 1000
random macro
; macro chosen macro_1 or macro_2 or macro_3 or ....
endm
macro_1 macro
push eax
push ebx
endm
macro_2 macro
push esi
push edi
endm
Hi Activia,
welcome to masm32 forum
i would use QueryPerformanceCounter to get a timer value
take the least signifigant bit and use that to select the macro for you
push eax
sub esp,8
INVOKE QueryPerformanceCounter,esp
pop eax
pop edx
and al,1
pop eax
jz ChoosePair1
ChoosePair0:
push eax
push ebx
jmp short PairChosen
ChoosePair1:
push esi
push edi
PairChosen:
.
.
.
Thank you :p but it's not that.
Sorry, I had difficulty explaining.
I don't want add code... 100% random macro
Example after compilation :
mov eax, 1
mov ebx, 2
mov edi, 3
mov esi, 4
RANDOM ; this macro chosen macro_1 or macro_2 without argument
AFTER COMPILATION :
mov eax, 1
mov ebx, 2
mov edi, 3
mov esi, 4
PUSH EAX ; RANDOM macro chose macro_1
PUSH EBX
OR
mov eax, 1
mov ebx, 2
mov edi, 3
mov esi, 4
PUSH ESI ; RANDOM macro chose macro_2
PUSH EDI
I'm not sure what you are asking for, but perhaps this will do what you want:
http://www.masm32.com/board/index.php?topic=9018.0
QuoteI'm not sure what you are asking for
me either - i thought i understood - lol
i wonder if he (or she) tried my code - lol
many people may not realize that QueryPerformanceCounter spits out more or less pseudo-random stuff
but, i see no need for use of the stack for these values
and, i see no need for use of macros
so, either we are not getting the big picture, or it is more complicated than it needs to be
Activia, if you tell use what you want the end result to be and what you are using it for, we may be able to simplify it for you
I have a sample in NASM.
I want the same code in MASM.
The guy use "nasmw.exe -w-number-overflow -fobj -dkey=%key% -O3 %name%.asm " for choose randomly macros.
So, I can use "/c /coff /Cp /nologo /DRANDOM=%key%
Thank you for you link MichaelW and thank you dedndave ;)
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hmm, a compiler isn't supposed to make random choice... it could be used to generate many files doing the same thing with differents signatures, possibly interesting for app/video game to avoid patchs (but disallow a possible update later). now i also see another usage, but you don't want to do that ! do you ?
anyway, where is the interest to "protect" your code like that ? if you have read the french doc included, IT DOES EXACTLY THE SAME THING. you should better use a key/crypting method (plus, here updates will be possible). here an example (code in french) : http://www.masm32.com/board/index.php?topic=8429.0
if it smells like a fish and flaps its tail....
prolly a fish
LOL, it's not for virus !
Yes, my sample NASM is confusing lol... but I am interested in the random choice when compiling.
Quoteif you have read the french doc included, IT DOES EXACTLY THE SAME THING.
Yes yes, that's why I do not want to encrypt my code ;)
hmm, a compiler isn't supposed to make random choice...hmm, this code works to start :
@ECHO OFF
SET h1=%time:~0,1%
SET h2=%time:~1,1%
SET m1=%time:~3,1%
SET m2=%time:~4,1%
SET s1=%time:~6,1%
SET s2=%time:~7,1%
SET c1=%time:~9,1%
SET c2=%time:~10,1%
SET j1=%date:~0,1%
SET j2=%date:~1,1%
SET m1=%date:~3,1%
SET m2=%date:~4,1%
SET a1=%date:~6,1%
SET a2=%date:~7,1%
SET a3=%date:~8,1%
SET a4=%date:~9,1%
SET key=%c1%%s2%%c2%%c1%%m2%%c2%%j2%%m2%
@ECHO ON
C:\masm32\bin\ml.exe /c /coff /Cp /nologo /DRANDOM=%key% "Body.asm"
C:\masm32\bin\link.exe /SUBSYSTEM:WINDOWS /RELEASE /VERSION:4.0 body.obj
del *.obj
pause
testm macro
ifndef RANDOM
mov eax, 1
else
mov eax, RANDOM
endif
PrintDec eax
endm
If you want it at assembly time, there is not much choice. Here is one:
include \masm32\include\masm32rt.inc
random MACRO
if @Line and 1
print "Very odd!", 13, 10
else
print "Even that one works", 13, 10
endif
ENDM
.code
start:
random
nop
random
random
random
nop
random
random
random
getkey
exit
end start