0. Introduction Recently, I wrote about the DVRF series topics, and I still feel a bit overwhelmed by the construction of ROP, so I decided to delve deeper into how to construct ROP chains during the May Day holiday. Note: The entire process should be replicated using Ubuntu 16.04. Do not use 18.04 or 20.04, … Read more
The embedded processor architecture is a core component of embedded systems, and its design and performance directly affect the efficiency and functionality of the entire system. Below is a detailed technical explanation of embedded processor architecture, including its basic concepts, main types, characteristics, and performance in practical applications. 1. Basic Concepts An embedded processor is … Read more
Quin, a company specializing in accident detection, has produced a series of motorcycle helmet products. Since 2018, the company has been applying “sensor fusion and software” technology in helmets, and has also implemented this technology in some ABUS bicycle helmets. Quin claims that its proprietary technology can detect accidents and trigger emergency responses, while MIPS … Read more
This article introduces the MIPS architecture and its assembly language from four aspects: 1. Types of Registers 2. Arithmetic and Addressing Instructions 3. Program Structure 4. System Calls The tool required is: Mars 4.4 Download link: http://courses.missouristate.edu/KenVollmar/mars/download.htm 1 Data Types 1. All MIPS instructions are 32 bits long 2. 1 byte = 8 bits, half-word … Read more
Follow SomedayWill, providing assistance to those tormented by computer organization. Yesterday’s P2 haunt still lingers, indeed it was somewhat challenging. Someday did not finish debugging the Challenge, which is a bit regrettable. However, thanks to the inspiration from WJJ, Someday found the first two problems quite easy. Today, I will summarize these clever tricks learned … Read more
When we thought that WaveCel brought a leap in helmet product safety, MIPS Company strongly countered, claiming that their tests on WaveCel helmets showed protection levels far below what was advertised. Related report: “Helmet Safety Breakthrough: Bontrager WaveCel Series Helmets Released” Below is the complete translated statement released by MIPS: As a leader in the … Read more
There are so many helmets on the market today that choosing a new one can be overwhelming. We know that helmets have passed the necessary impact safety tests, but is that enough? Many manufacturers aim to stay ahead of those testing standards to create safer helmets. Reducing rotational forces after an impact is currently a … Read more