Mario L. Côrtes

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This paper proposes a code compression technique called operand factorization. The central idea of operand factorization is the separation of program expression trees into sequences of tree-patterns (opcodes) and operand-patterns (registers and immediates). Using this technique, we show that tree and operand patterns have exponential frequency(More)
Physical Unclonable Functions (PUFs) are circuits which exploit the statistical variability of the fabrication process to create a unique device identity. PUFs have been used in the design of cryptographic primitives for applications like device authentication, key generation and intellectual property protection. Due to its small cost and design simplicity,(More)
The contents of this report are the sole responsibility of the authors. O conteúdo do presente relatório é de única responsabilidade dos autores. Abstract This Technical Report presents the implementation details and usage guidelines of FDPE framework. FDPE provides fast and accurate dynamic power estimation for gate-level digital circuits using Liberty(More)
Power and energy consumption is a major issue and a design constraint in many types of systems. However, the knowledge of average power consumption is not enough, since many issues may arise due to dynamic power characteristics, such as IR drop, and side channel attacks in cryptographic circuits via DPA. Analog simulation (e.g. Spice), which has been used(More)
The ^{54}Fe nucleus was populated from a ^{56}Fe beam impinging on a Be target with an energy of E/A=500  MeV. The internal decay via γ-ray emission of the 10^{+} metastable state was observed. As the structure of this isomeric state has to involve at least four unpaired nucleons, it cannot be populated in a simple two-neutron removal reaction from the(More)
The first measurement of the low-lying states of the neutron-rich ^{110}Zr and ^{112}Mo was performed via in-beam γ-ray spectroscopy after one proton removal on hydrogen at ∼200  MeV/nucleon. The 2_{1}^{+} excitation energies were found at 185(11) keV in ^{110}Zr, and 235(7) keV in ^{112}Mo, while the R_{42}=E(4_{1}^{+})/E(2_{1}^{+}) ratios are 3.1(2),(More)
This paper presents a cpu designed for educational applications to be used in the Computer Architecture Laboratories, at ic/unicamp. The cpu will be used as a basic plataform in order to introduce to the students novel design concepts such as vhdl, Logic Synthesis and fpgas as well as a means to explore computer architecture characteristics and(More)
The neutron-rich lead isotopes, up to (216)Pb, have been studied for the first time, exploiting the fragmentation of a primary uranium beam at the FRS-RISING setup at GSI. The observed isomeric states exhibit electromagnetic transition strengths which deviate from state-of-the-art shell-model calculations. It is shown that their complete description demands(More)
Physical Unclonable Functions (PUFs) are devices which exploit manufacturing variability to uniquely distinguish individuals, thus preventing them from cloning for malicious purposes. With the increasing demand of low-cost devices, PUF designs which can effectively combine small silicon area and power consumption with high resistance to attacks have become(More)