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![Permalink for '[Video] The Cell Processor'](/themes/lilina/web//media/mark_off.gif.pagespeed.ce.FiDKaoEBZK.gif)
15:24
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SecDocs
Authors:
Torsten Hoefler Tags:
technology Event:
Chaos Communication Congress 22th (22C3) 2005 Abstract: The x86 architecture has been the de facto standard for many years. Attempts to take the turn, like Intel tried with the VLIW Itanium Architetcture were desastrous. But the x86 architecture is not able to fulfil the demands of today's market. Several additions have been proposed (MMX,3dNow,SSE1-3), but the Cell approach takes them to the next level. The cell processor offers unique new features which are focused on high througput computing with low power. This approach is not compatible to the commonly known and widely spread x86 architecture, which survived every attempt to replace it since decades. The latest proposal by Intel, the Itanium architecturue did not make it, they are going to merge back to x86. But the Cell approach is fundamentally different, the aim is not to take the server or workstation market, the architecture is mainly targeted for the console and consumer elektronics. Two big companies from this sectors, Sony and Toshiba realized a research project together with one of the biggest microprocessor architects, IBM. The result was the Cell architecture, which is in particular very interesting, not only for the consumer electronics but also for the PC, Server and Supercomputing market. The necessary ideas to implement vector operations additionally to normal operations are also implemented in x86 as MMX/3dNow or SSE1-3, but the Cell architecture has gone further. This architecture proposes a heterogeneous Multiprocessor consisting of a normal general purpose CPU and several (8 in Version 1) small and fast Vector CPUs. The main concept is to reduce the complexity on the chip to increase the number of functional units and the clock rate. The vector CPUs are cache-less, have no branch prediction scheme and provide only in order execution with two very simple pipelines. All the complexity has been moved inside the upper software layer (compiler), where it can be handled efficiently (cmp. VLIW architectures). All Elements, the computing units and interconnects are introduced and analyzed in the talk. The first prototype with chip layout is explained. Furthermore different (thinkable) programming strategies are shown.
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15:24
»
SecDocs
Authors:
Torsten Hoefler Tags:
technology Event:
Chaos Communication Congress 22th (22C3) 2005 Abstract: The x86 architecture has been the de facto standard for many years. Attempts to take the turn, like Intel tried with the VLIW Itanium Architetcture were desastrous. But the x86 architecture is not able to fulfil the demands of today's market. Several additions have been proposed (MMX,3dNow,SSE1-3), but the Cell approach takes them to the next level. The cell processor offers unique new features which are focused on high througput computing with low power. This approach is not compatible to the commonly known and widely spread x86 architecture, which survived every attempt to replace it since decades. The latest proposal by Intel, the Itanium architecturue did not make it, they are going to merge back to x86. But the Cell approach is fundamentally different, the aim is not to take the server or workstation market, the architecture is mainly targeted for the console and consumer elektronics. Two big companies from this sectors, Sony and Toshiba realized a research project together with one of the biggest microprocessor architects, IBM. The result was the Cell architecture, which is in particular very interesting, not only for the consumer electronics but also for the PC, Server and Supercomputing market. The necessary ideas to implement vector operations additionally to normal operations are also implemented in x86 as MMX/3dNow or SSE1-3, but the Cell architecture has gone further. This architecture proposes a heterogeneous Multiprocessor consisting of a normal general purpose CPU and several (8 in Version 1) small and fast Vector CPUs. The main concept is to reduce the complexity on the chip to increase the number of functional units and the clock rate. The vector CPUs are cache-less, have no branch prediction scheme and provide only in order execution with two very simple pipelines. All the complexity has been moved inside the upper software layer (compiler), where it can be handled efficiently (cmp. VLIW architectures). All Elements, the computing units and interconnects are introduced and analyzed in the talk. The first prototype with chip layout is explained. Furthermore different (thinkable) programming strategies are shown.
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15:24
»
SecDocs
Authors:
Torsten Hoefler Tags:
technology Event:
Chaos Communication Congress 22th (22C3) 2005 Abstract: The x86 architecture has been the de facto standard for many years. Attempts to take the turn, like Intel tried with the VLIW Itanium Architetcture were desastrous. But the x86 architecture is not able to fulfil the demands of today's market. Several additions have been proposed (MMX,3dNow,SSE1-3), but the Cell approach takes them to the next level. The cell processor offers unique new features which are focused on high througput computing with low power. This approach is not compatible to the commonly known and widely spread x86 architecture, which survived every attempt to replace it since decades. The latest proposal by Intel, the Itanium architecturue did not make it, they are going to merge back to x86. But the Cell approach is fundamentally different, the aim is not to take the server or workstation market, the architecture is mainly targeted for the console and consumer elektronics. Two big companies from this sectors, Sony and Toshiba realized a research project together with one of the biggest microprocessor architects, IBM. The result was the Cell architecture, which is in particular very interesting, not only for the consumer electronics but also for the PC, Server and Supercomputing market. The necessary ideas to implement vector operations additionally to normal operations are also implemented in x86 as MMX/3dNow or SSE1-3, but the Cell architecture has gone further. This architecture proposes a heterogeneous Multiprocessor consisting of a normal general purpose CPU and several (8 in Version 1) small and fast Vector CPUs. The main concept is to reduce the complexity on the chip to increase the number of functional units and the clock rate. The vector CPUs are cache-less, have no branch prediction scheme and provide only in order execution with two very simple pipelines. All the complexity has been moved inside the upper software layer (compiler), where it can be handled efficiently (cmp. VLIW architectures). All Elements, the computing units and interconnects are introduced and analyzed in the talk. The first prototype with chip layout is explained. Furthermore different (thinkable) programming strategies are shown.
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10:30
»
SecDocs
Authors:
Torsten Hoefler Tags:
technology Event:
Chaos Communication Congress 22th (22C3) 2005 Abstract: The x86 architecture has been the de facto standard for many years. Attempts to take the turn, like Intel tried with the VLIW Itanium Architetcture were desastrous. But the x86 architecture is not able to fulfil the demands of today's market. Several additions have been proposed (MMX,3dNow,SSE1-3), but the Cell approach takes them to the next level. The cell processor offers unique new features which are focused on high througput computing with low power. This approach is not compatible to the commonly known and widely spread x86 architecture, which survived every attempt to replace it since decades. The latest proposal by Intel, the Itanium architecturue did not make it, they are going to merge back to x86. But the Cell approach is fundamentally different, the aim is not to take the server or workstation market, the architecture is mainly targeted for the console and consumer elektronics. Two big companies from this sectors, Sony and Toshiba realized a research project together with one of the biggest microprocessor architects, IBM. The result was the Cell architecture, which is in particular very interesting, not only for the consumer electronics but also for the PC, Server and Supercomputing market. The necessary ideas to implement vector operations additionally to normal operations are also implemented in x86 as MMX/3dNow or SSE1-3, but the Cell architecture has gone further. This architecture proposes a heterogeneous Multiprocessor consisting of a normal general purpose CPU and several (8 in Version 1) small and fast Vector CPUs. The main concept is to reduce the complexity on the chip to increase the number of functional units and the clock rate. The vector CPUs are cache-less, have no branch prediction scheme and provide only in order execution with two very simple pipelines. All the complexity has been moved inside the upper software layer (compiler), where it can be handled efficiently (cmp. VLIW architectures). All Elements, the computing units and interconnects are introduced and analyzed in the talk. The first prototype with chip layout is explained. Furthermore different (thinkable) programming strategies are shown.
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2:37
»
SecDocs
Authors:
Ralf-Philipp Weinmann Tim Kornau Vincenzo Iozzo Tags:
exploiting phone Event:
Black Hat USA 2010 Abstract: Return-oriented programming is one of the most advanced attack techniques available today. This talk presents algorithms which allow an attacker to search for and compose gadgets regardless of the underlying architecture using the REIL meta language. We show a return-oriented compiler for the ARM architecture as a proof-of-concept implementation of the algorithms developed and discuess applications to the iPhoneOS platform. This compiler accepts inputs in an assembly-like language, simplifying the otherwise tedious gadget selection process by hand. Thus enabling the researcher to focus on the other parts of successful exploitation by minimizing the shellcode development time.
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14:09
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SecuriTeam
Progress OpenEdge Enterprise RDBMS contains multiple architecture vulnerabilities.
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Make your website safer. Use external penetration testing service. First report ready in one hour!
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16:00
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Hack a Day
We’re not sure how we missed [Jack Eisenmann's] 4 bit TTL CPU when we were tipped off the first time, but we’re glad it was sent in again for us to feature it. 41 different ICs (mostly TTL) come together to comprise the DUO 128 Elite. While the architecture is a little different than what [...]
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21:03
»
SecDocs
Authors:
Eleanor Saitta Tags:
culture Event:
Chaos Communication Congress 26th (26C3) 2009 Abstract: Architecture and urban planning play a huge role in our lives, to a degree not always obvious. The city, however, can be seen as just another system—like any other, it can be hacked, illuminating and subverting existing power structures and creating spaces that allow us to be more human and to live richer lives. In this talk, we'll see a bunch of the challenges of the modern city and look at possible responses. Architecture and urban planning define much of the world we interact with. This has a wide variety of deep and not always immediately obvious effects—everything from the kinds of things we can do in public spaces to the kinds of families we can live with. While the transparency and responsiveness to actual community need varies, even the best architecture is a usually conservative. The cities we end up with rarely allow us the kind of flexibility and humanity that we want. Cities, buildings, infrastructure, all of these things are systems. They are heavily politicized with embodied power structures on a number of different levels—structural, functional, aesthetic, economic, political, and social. At each level, we can intervene, alter those power structures, and create the spaces we need and want. Architecture is generally the domain of the rich and powerful, but it doesn't have to be—we can intervene and hack the city. During this talk, I'll spend a bit of time exploring the power structures of the modern city at the level of architecture and urban planning. Then, for the bulk of the talk, I'll look at a bunch of different techniques—prototypes for ways we as individuals can subvert the city. Let's get outside the design-culture consumer conversation around architecture and urban futurism, and actually change our cities, one brick at a time!
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21:03
»
SecDocs
Authors:
Eleanor Saitta Tags:
culture Event:
Chaos Communication Congress 26th (26C3) 2009 Abstract: Architecture and urban planning play a huge role in our lives, to a degree not always obvious. The city, however, can be seen as just another system—like any other, it can be hacked, illuminating and subverting existing power structures and creating spaces that allow us to be more human and to live richer lives. In this talk, we'll see a bunch of the challenges of the modern city and look at possible responses. Architecture and urban planning define much of the world we interact with. This has a wide variety of deep and not always immediately obvious effects—everything from the kinds of things we can do in public spaces to the kinds of families we can live with. While the transparency and responsiveness to actual community need varies, even the best architecture is a usually conservative. The cities we end up with rarely allow us the kind of flexibility and humanity that we want. Cities, buildings, infrastructure, all of these things are systems. They are heavily politicized with embodied power structures on a number of different levels—structural, functional, aesthetic, economic, political, and social. At each level, we can intervene, alter those power structures, and create the spaces we need and want. Architecture is generally the domain of the rich and powerful, but it doesn't have to be—we can intervene and hack the city. During this talk, I'll spend a bit of time exploring the power structures of the modern city at the level of architecture and urban planning. Then, for the bulk of the talk, I'll look at a bunch of different techniques—prototypes for ways we as individuals can subvert the city. Let's get outside the design-culture consumer conversation around architecture and urban futurism, and actually change our cities, one brick at a time!
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21:03
»
SecDocs
Authors:
Eleanor Saitta Tags:
culture Event:
Chaos Communication Congress 26th (26C3) 2009 Abstract: Architecture and urban planning play a huge role in our lives, to a degree not always obvious. The city, however, can be seen as just another system—like any other, it can be hacked, illuminating and subverting existing power structures and creating spaces that allow us to be more human and to live richer lives. In this talk, we'll see a bunch of the challenges of the modern city and look at possible responses. Architecture and urban planning define much of the world we interact with. This has a wide variety of deep and not always immediately obvious effects—everything from the kinds of things we can do in public spaces to the kinds of families we can live with. While the transparency and responsiveness to actual community need varies, even the best architecture is a usually conservative. The cities we end up with rarely allow us the kind of flexibility and humanity that we want. Cities, buildings, infrastructure, all of these things are systems. They are heavily politicized with embodied power structures on a number of different levels—structural, functional, aesthetic, economic, political, and social. At each level, we can intervene, alter those power structures, and create the spaces we need and want. Architecture is generally the domain of the rich and powerful, but it doesn't have to be—we can intervene and hack the city. During this talk, I'll spend a bit of time exploring the power structures of the modern city at the level of architecture and urban planning. Then, for the bulk of the talk, I'll look at a bunch of different techniques—prototypes for ways we as individuals can subvert the city. Let's get outside the design-culture consumer conversation around architecture and urban futurism, and actually change our cities, one brick at a time!
