Article View: comp.lang.asm.x86
Article #182Re: How can I get the current Instruction Address using asm language for intel i386
From: Calvin
Date: Fri, 01 Nov 2002 05:56
Date: Fri, 01 Nov 2002 05:56
67 lines
3214 bytes
3214 bytes
"Iman Habib" <pixelpajas@hotmail.com> ���g��l�� news:dfb2581c.0210311605.22532859@posting.google.com... > Hi. > > Is it a joke or is there a valid reason for the: > > > mov eax, eax ; EAX = EIP of THIS mov instruction :p > > i just not get it.. ?? In fact it is a joke to demostrate the eax being the instruction pointer of the MOV instruction, but not the CALL instruction. I think it's important to make it clear. > > it seems to me that EIP is already moved to EAX > at the line where it says: > > > mov eax, [esp-4] > > > really tired here.. to tired to understand a joke.. (if its a joke) > please dont kill me for this remark.. i probably just need some sleep.. I need some sleep too! it should be mov eax, [esp + 4] > > //iman > > > > "Calvin" <foo@bar.com> wrote in message news:<apqb7h$a6h$1@tenorhorn.hk.dyxnet.com>... > > You can make use of the stack and CALL/RET instruction > > > > provided the CALL instruction push the (E)IP on the stack > > you can write a GetIP function like this: > > > > ; DWORD GetIP (void); > > GetIP: > > mov eax, [esp-4] > > ret > > > > > > call GetIP > > mov eax, eax ; EAX = EIP of THIS mov instruction :p > > > > > > -- > > > > > > > > > > > > "Edward" <yongtian@lucent.com> ���g��l�� news:3DC179AE.F8F77BB@lucent.com... > > > I am trying to get the current instruction address. > > > Does anybody give me a kindly suggestion? > > > > > > Thanks > > > > > > >
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X-Google-Language: ENGLISH,ASCII X-Google-Thread: 11318c,c1ae2bfd06633400 X-Google-Attributes: gid11318c,public X-Google-Thread: 114917,c1ae2bfd06633400 X-Google-Attributes: gid114917,public X-Google-ArrivalTime: 2002-10-31 23:56:37 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!sn-xit-03!sn-xit-06!sn-post-01!supernews.com!corp.supernews.com!news.crayne.org!clax86!robomod!not-for-mail From: "Calvin" <foo@bar.com> Newsgroups: comp.lang.asm.x86,gnu.gcc.help Subject: Re: How can I get the current Instruction Address using asm language for intel i386 Approved: CLAX86 Moderators <ccrayne@crayne.org> Date: Fri, 1 Nov 2002 05:56:06 +0000 (UTC) Organization: Diyixian.com Ltd. Message-ID: <apt3gq$6vu$1@tenorhorn.hk.dyxnet.com> Sender: clax86@odin.asgard References: <3DC179AE.F8F77BB@lucent.com> <apqb7h$a6h$1@tenorhorn.hk.dyxnet.com> <dfb2581c.0210311605.22532859@posting.google.com> X-CLAX86-Policy: http://www.pacificsites.com/~ccrayne/clax86.html X-CLAX86-Faq: http://www2.dgsys.com/~raymoon/x86faqs.html X-CLAX86-Info-1: Send submissions to comp-lang-asm-x86@moderators.isc.org X-CLAX86-Info-2: Send technical complaints to ccrayne@crayne.org X-CLAX86-Info-3: Send complaints about policy to ccrayne@crayne.org X-Comment: moderators do not necessarily agree or disagree with this article. X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 X-MailScanner: Found to be clean X-UIDL: -+T!!@U1!!'K"#!V';"! X-Complaints-To: abuse@supernews.com Lines: 70