6 docs tagged with "risc-v"

Arithmetic and logical operations are some of the key building blocks for writing any program as almost any functionality boils down to them.

When programming we often find ourselves using control structures like if and else this creates branches in our program where we either go down one or the other branch. RISC-V offers so-called branch instructions which in most cases take 2 operands and a Label to jump to after checking the condition. Labels are not some magic keywords, they are just an offset off the program counter, PC that is automatically handled by the assembler.

Just using registries to store data is not enough which is why we also have main memory and secondary memory. Main memory is especially useful when working with composite data such as data structures or dynamic data.

A procedure or function is one of the key building blocks for programmers as it allows them to create understandable and reusable code. It also a way to add abstraction and simplify a program. In simple a procedure works as follows:

As I have already mentioned multiple times, some RISC-V implementations also offer pseudo instructions which are like aliases for other instructions but make the assembly code easier to read and understand.

RISC-V is an open standard instruction set architecture that has been developed at the University of California, Berkeley since 1981 and is based on the established RISC principles which we will see when diving deeper.