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X86 hidden instructions: >> http://ovp.cloudz.pw/download?file=x86+hidden+instructions << (Download)
X86 hidden instructions: >> http://ovp.cloudz.pw/read?file=x86+hidden+instructions << (Read Online)
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christopher domas
10 Sep 2017 In case anyone is wondering what the "hidden instructions" he found are, many of them are documented elsewhere: 0f0d/0-7 were all prefetch instructions, but probably behave like NOPs if not supported 0f18/0-7 are HINT_NOPs 0f{1a-1f} are also HINT_NOPs 0fae is a bunch of assorted instructions
The x86 instruction set refers to the set of instructions that x86-compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor. The x86 instruction set has been extended several times, introducing wider registers and datatypes
31 Aug 2017
4 Sep 2017 It's also important to mention that the explicit goal is to "exhaustively search the x86 instruction set and uncover the secrets buried in a chipset" (from the paper). Not to "find thoroughly hidden instructions" or anything like that. You might still mistrust chip manufacturers and suspect that they are conspiring to
I just wanted to share this incredibly interesting video I stumbled across. A presentation by Christopher Domas about the search for undocumented, and thus purposely hidden, instructions in x86 CPU's. Not only the fact that there seems to be lots of hidden stuff on your average x86 is interesting, the clever
30 Jul 2017 Sandsifter has uncovered secret processor instructions from every major vendor; ubiquitous software bugs in disassemblers, assemblers, and emulators; flaws in enterprise hypervisors; and both benign and security-critical hardware bugs in x86 chips. You can read more in the project's whitepaper.
new project: sandsifter x86 processor fuzzer; exposes hidden instructions in x86; github.com/xoreaxeaxeax/sandsifter pic.twitter.com/k6pLtfyl7D. The media could not be played. 11:22 AM - 28 Jul 2017. 252 Retweets; 412 Likes; Ken Johnson alu Clementine Maurice Y4r4G Nikolaj Schlej Devilman is sports anime
27 Jul 2017 README.md. s a n d s i f t e r. : the x86 processor fuzzer. Overview. The sandsifter audits x86 processors for hidden instructions and hardware bugs, by systematically generating machine code to search through a processor's instruction set, and monitoring execution for anomalies. Sandsifter has uncovered
In some cases, links are provided to source code which proves the behavior described within. Descriptions and source code are provided for an undocumented form of AAM and AAD. Other instructions discussed are SALC (also known as SETALC), INT01 (also known as ICEBP) including Pentium and P6 information,
Breaking the x86 ISA. Christopher Domas xoreaxeaxeax@gmail.com. July 17, 2017. Abstract— A processor is not a trusted black box for running code; on the contrary, modern x86 chips are packed full of secret instructions and hardware bugs. In this paper, we demonstrate how page fault analysis and some creative
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