search for: struction

Sorry, gmail seemed to have made an attachment out of my first attempted post. Trying again: ------------------------------ At the encouragement of many at UseR, I'm trying to build my first real package. I have no C/Fortran code, just plain old R code, so it should be rocket science. On a Linux box, I used package.skeleton() to create a basic package containing just one "hello

...(auto &BB : Fn) { for (MachineBasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I) { if (I->isPseudo()) continue; // inspect opcode of I here } } } return true; } As the comment suggests I want to inspect the target-specific opcode of each instruction. By opcode I mean the actual machine code (=encoding of that in struction as an array of bytes), not the integer descriptor returned by I->getOpcode(). I don't see how this can be done. Maybe anybody can help. Cheers, Peter -------------- next part -------------- An HTML attachment was scr...

Hello, thank you very much for answering. I am trying to do the following: get the encoding for each instruction and if that encoding contains a C3 byte, insert a NOP instruction (or multiple NOP instructions, or any other instructions) before that instruction. The idea behind this is to protect against ROP (Return Oriented Programming) attacks. By inserting a NOP the attacker can no longer abuse alignment to...

I am working on a security tool that monitors various components (IDT, SSDT, etc) of a domU using VM introspection. Currently, we''re using a polling method to monitor these in-core structions. We would like to be able to use a blocking method instead. I.e. specify "interesting" memory ranges and then wait until they are modified. How can I get the hypervisor to alert a kernel module loaded in dom0 that something has happened? Can the alert include extra information such a...

...e merged value is available in `ax`. If the processor uses `cl` and `al`, this sort of problem is avoided. <<Quote from Intel Optimisation guide, page 3-44 http://www.intel.co.uk/content/dam/doc/manual/64-ia-32-architectures-optimization-manual.pdf A partial register stall happens when an instruction refers to a register, portions of which were previously modified by other instructions. For example, partial register stalls occurs with a read to AX while previous instructions stored AL and AH, or a read to EAX while previous in struction modified AX. The delay of a partial register stall is smal...

...in `ax`. If the > processor uses `cl` and `al`, this sort of problem is avoided. > > <<Quote from Intel Optimisation guide, page 3-44 > http://www.intel.co.uk/content/dam/doc/manual/64-ia-32-architectures-optimization-manual.pdf > > A partial register stall happens when an instruction refers to a > register, portions of > which were previously modified by other instructions. For example, > partial register > stalls occurs with a read to AX while previous instructions stored AL > and AH, or a read > to EAX while previous in > struction modified AX. > The d...

...g samba-tool dns upgrade internal. But then lack?s soome required modern dns feagers . looks like that the docu for "samba-tool dns upgrade internal." that had been dropted of the dns managment wiki page.. ?!? @Marc ? review it please... > Thanks for your help, > - lars. >structions: https://lists.samba.org/mailman/options/samba > regards Horst

...rocessor uses `cl` and `al`, this sort of problem is avoided. >> >> <<Quote from Intel Optimisation guide, page 3-44 >> http://www.intel.co.uk/content/dam/doc/manual/64-ia-32-architectures-optimization-manual.pdf >> >> A partial register stall happens when an instruction refers to a >> register, portions of >> which were previously modified by other instructions. For example, >> partial register >> stalls occurs with a read to AX while previous instructions stored AL >> and AH, or a read >> to EAX while previous in >> struc...

Hello, is there anyone who can point me to correct information ? Following http://pbxinaflash.com/forum/showthread.php?t=9042 and http://www.voip-info.org/wiki/view/Asterisk+cdr+mysql > Extending CDR does not result in a working environment for me. Any feedback appreciated. Kind regards, Jonas. -------- Original Message -------- Subject: [asterisk-users] Asterisk 1.6.2.10 & CDR

...`al`, this sort of problem is avoided. >>> >>> <<Quote from Intel Optimisation guide, page 3-44 >>> http://www.intel.co.uk/content/dam/doc/manual/64-ia-32-architectures- >optimization-manual.pdf >>> >>> A partial register stall happens when an instruction refers to a >>> register, portions of >>> which were previously modified by other instructions. For example, >>> partial register >>> stalls occurs with a read to AX while previous instructions stored AL >>> and AH, or a read >>> to EAX while pr...

...m is avoided. >>>> >>>> <<Quote from Intel Optimisation guide, page 3-44 >>>> http://www.intel.co.uk/content/dam/doc/manual/64-ia-32-architectures- >> optimization-manual.pdf >>>> >>>> A partial register stall happens when an instruction refers to a >>>> register, portions of >>>> which were previously modified by other instructions. For example, >>>> partial register >>>> stalls occurs with a read to AX while previous instructions stored AL >>>> and AH, or a read >>...

I set up two AD DC with external bind and it used to work for a while. Following a Bind9 upgrade named complained about missing SOA and NS records in the DLZ zones and could not be started anymore. Monday, due to a misinterpretation of some queries, I restarted Bind on the hitherto working system and I got the same error messages. No nothing changed - no changes in configuration, no updates.

Dear all, I am experiencing problems using the glmmPQL function in the MASS package (Venables & Ripley 2002) to model binomial data with spatial autocorrelation. My question - is the presence of birds affected by various hydrological parameters? Presence/absence data were collected from 83 sites and coupled against hydrological data from the same site. The bird survey sampling effort

Try using x86 mode rather than Intel64 mode. I have definitely gotten it to use both ah and al in 32 bit x86 code generation. In particular, I have seen that in loops for both the spec2000 and spec2006 versions of bzip. It can happen, but it does only rarely. Kevin Smith >-----Original Message----- >From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of >Krzysztof

I'm trying to see how the x86 backend deals with the relationship between AL, AH and AX, but I can't get it to generate any code that would expose an interesting scenario. For example, I wrote this piece: typedef struct { char x, y; } struct_t; struct_t z; struct_t foo(char *p) { struct_t s; s.x = *p++; s.y = *p; z = s; s.x++; return s; } But the output at -O2

hi, if there's a simple patch for this annoying bug for over a year, why wasn't it fixed in current stable release. please to so, since i'm tired of patching it on all machines. pille

Package: xen-hypervisor-3.4-i386 Version: 3.4.3~rc3-1 Severity: normal i want to run the xen-hypervisor inside a KVM machine. hypervisor is booting - blanks screen and stops before loading dom0. it may sound strange to run a VM inside a VM, but i need this for testing. the virtualized domUs should be run paravirtualized. -- System Information: Debian Release: squeeze/sid APT prefers