Renan Albuquerque Marks

• Doctor of Philosophy
• Professor at Federal University of Mato Grosso do Sul

After the continuous development of CMOS technology driven by transistor miniaturization and Moore’s law, the scientific community is witnessing the exploration of emerging paradigms to find new ways to develop computational systems. This paper presents critical concepts for understanding some of these new nanocomputing technologies, specifically f...

Approximate computing stands out in systems in which the simplicity must be above the demand for high precision and processing speed. It is the case of DNA systems, especially those based on the DNA strand displacement technique, which is naturally in a complex and noise-filled environment. In this sense, proposals for approximate DNA circuits impl...

DNA Strand Displacement (DSD) can be used as “wet” hardware to construct molecular logic circuits. The hybridization between fragments of DNA strands (inputs) allows the displacement of some of them (outputs). This paper exploits the DNAr-Logic: a software package in R language that provides easy design and test of digital logic circuits in DNA com...

Chemical reaction networks (CRNs) have been proposed as an abstraction for molecular computing. DNA strand displacement (DSD) reactions are good candidates to realize this endeavor, since DNA strands can be wired to implement the desired dynamic behavior in a test tube. Specialists use simulators to help them design such chemical systems before exp...

Emerging technologies, as DNA computing, promise to help with early diagnosis and disease treatments. For this purpose, molecular circuits design needs to become easier and feasible. Based on previous works, we built arithmetic analog circuits in single and cascade modules of different sizes using DNA Strand Displacement reactions. This paper aims...

This paper describes the DNAr-Logic: an implementation of a software package in R language that provides ease of use and scalability of the design process of digital logic circuits in molecular computing, more specifically, DNA computing. These devices may be used in-vitro, in-vivo, or even replace the CMOS technology in some applications. Using a...

Instruction encoding techniques have been designed for reducing the program memory footprint and improving processors performance. However, many techniques are instruction-set dependent thus minimizing the adoption in different application domains and target processors. This paper presents an instruction encoding technique and a software framework...

Esse trabalho apresenta o projeto e desenvolvimento da técnica de codificação de instruções PBIW sobre o conjunto de instruções SPARCv8. A técnica de codificação PBIW foi desenvolvida sobre uma infraestrutura de codificação de instruções em software que mapeia o código gerado pela saída de um compilador no esquema de codificação PBIW projetado para...

This work presents a software framework implementing a unified infrastructure for instruction encoding techniques on embedded processors. The proposed framework has been used together with the Pattern Based Instruction Word (PBIW) technique to encodeprograms from the VEX and SPARC instruction sets. Given the common complexity around the design of a...

This paper presents the PBIW (Pattern Based Instruction Word) instruction encoding technique on the RVEX embedded soft core processor. The PBIW encoding technique maps the assembly generated by a compiler into an encoding scheme of a target processor. The results obtained shows that the PBIW encoding has a compression ratio ranging from 60.97% to 1...