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Da Vinci



Joined: 31 Jul 2005
Posts: 1
Da Vinci
Original Masm32 code:
.WHILE TRUE
INVOKE GetMessage, ADDR msg,NULL,0,0
.BREAK .IF (!eax)
INVOKE TranslateMessage, ADDR msg
INVOKE DispatchMessage, ADDR msg
.ENDW

FASM code:
.while TRUE <--------ERROR (Why?)
invoke GetMessage,Msg,NULL,0,0
or eax,eax
je .exit
invoke TranslateMessage,Msg
invoke DispatchMessage,Msg
.endw
.exit:
Why does not work?
Please, give me examples!!!!
Post 31 Jul 2005, 11:03
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
LocoDelAssembly
Remove TRUE, the .endw will generate a jump to "invoke GetMessage" giving you an infinite while loop

Code:
.while

  invoke GetMessage,Msg,NULL,0,0
  or eax,eax
  je .exit
  invoke TranslateMessage,Msg
  invoke DispatchMessage,Msg

.endw
.exit:    
Post 31 Jul 2005, 15:28
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Ancient One



Joined: 28 Feb 2005
Posts: 55
Ancient One
Fasm .while is a macro that resolved to testing the argument using asm instruction (i.e cmp).. thats why u cannot use constant as argument.
Post 01 Aug 2005, 01:21
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
LocoDelAssembly
Ancient One wrote:
Fasm .while is a macro that resolved to testing the argument using asm instruction (i.e cmp).. thats why u cannot use constant as argument.


Partially true, if you put a constant on the right it compiles. For example ".while eax=0" works but ".while 0=eax" not (at least in Fasm 6.2 package)
Post 01 Aug 2005, 01:41
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Ancient One



Joined: 28 Feb 2005
Posts: 55
Ancient One
i mean a constant by itself.
Post 01 Aug 2005, 01:46
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7797
Location: Kraków, Poland
Tomasz Grysztar
I updated the IF.INC to do well also in such case -please try with the latest fasm for Windows package.
Post 01 Aug 2005, 09:02
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