6 Basic Cache Optimizations

CPUs often wait for data from slower main memory, and cache memory helps bridge this gap. Optimizing cache involves trade-offs across miss rate, miss penalty, and hit time. Strategies include increasing blocks, cache size, and associativity, but each option has its own costs and complexities, tailored to specific workloads.

Loop Unrolling in RISC-V

Loop unrolling significantly enhances performance in embedded systems, particularly in RISC-V architectures. By reducing loop overhead and increasing instruction-level parallelism, it minimizes control operations. However, this technique increases code size, necessitating careful consideration for systems with memory constraints.

Cache Replacement Policies

At the heart of every high-performing embedded system lies a well-oiled cache memory mechanism, silently dictating the efficiency and responsiveness of the technology we rely on daily. Cache replacement policies, often overlooked, are the unsung heroes in this scenario, subtly but significantly influencing system performance. From wearables to aerospace, these policies are the architects of […]

From IT to Embedded

Transitioning from IT to Embedded Systems isn’t a total reset. While new knowledge like hardware platforms and real-time operating systems is needed, your IT foundation still applies. Think of it as moving from novels to short stories. Online resources like “The Art of Electronics” are available for learning electronics basics. Embrace C language, microcontrollers, communication protocols, and possibly an RTOS. Specialize based on your interests.

Soft, Hard, Firm Real-Time Systems. What’s the difference?

Real-time systems are designed to respond within a set timeframe. They are categorized as soft, hard, or firm real-time systems. Soft systems prioritize accuracy and can tolerate occasional delays, seen in social media apps. Hard systems have strict deadlines and are critical for safety, such as air traffic control. Firm systems combine aspects of both.

Few GDB Debugging Commands

This guide introduces essential GDB debugger commands: break (set breakpoint), run (start execution), next (execute next line), step (execute and stop in function), continue (resume execution), print (print variable value), backtrace (display call stack), watch (set watchpoint), info (display program info), quit (exit debugger), and more.

𝐖𝐡𝐚𝐭 𝐝𝐨 𝐲𝐨𝐮 𝐦𝐞𝐚𝐧 𝐛𝐲 𝐕𝐞𝐫𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐕𝐚𝐥𝐢𝐝𝐚𝐭𝐢𝐨𝐧?

Verification and Validation (V&V) are critical activities in development. Verification ensures design compliance with requirements, while validation ensures the right system is built. These processes occur at different stages, with validation focusing on early development and verification on post-design production. Understanding these fundamental concepts is essential before exploring the involved techniques.

Memory weaved by hand – THe LVDC

The Launch Vehicle Digital Computer a.k.a LVDC is one of the critical components of the Saturn V launch. LVDC is the computer that provided the autopilot for Saturn V from launch to Earth Orbit Insertion. LVDC is designed and manufactured by IBM’s Electronics System Center. It is considered as one of the technologically advanced memory […]

FUN WITH POINTERS

Pointers!A confusing yet curious topic. What is a POINTER?Well, it’s a variable that stores the address of another variable. We often get confused by the dual operation performed by the pointer.‘&‘ Operator is an address operator that gives the address of a particular variable.‘*‘ Operator is an indirection operator, that refers to the value pointed […]

Peeking Into The Assembly

Assembly is tough. How does the processing of c code takes place in assembly? What are the kinds of instructions that we could see? What is actually happening in this gigantic mesh of lines? This is my small step to look into the assembly code of a small program/ replicating a small segment of code […]