instruction set architecture – VLSI System Design

SiFive RISCV Symposium Day 1 – Blockbuster opening at Hyderabad

The tech symposium started with Krste’s talk on “History of RISC-V Ecosystem around the world”. The talk started from very basic topic like “Why Instruction Set Architecture Matters?” and ended on a very important note on the need of a FREE ISA. He also provided ideas on how chip design factories can become company like Instagram, which exactly is everybody’s vision of abstracting details, and take advantage of existing online infrastructure

Can you approve my floorplan?

Just to give you some background, picoSoC is an example SoC using PicoRV32, and PicoRV32 is a size-optimized RISC-V CPU which implements RV32IMC instruction set architecture.

RISC-V waterfall diagram and hazards

The above waterfall diagram is representing a sequence of instructions that are fetched from memory and how they progress to the various stages of pipeline. In the above diagram you got program counter (P), fetch (F), decode (D), register read (R), execute (E) and register write (W). We fetch one instruction at a time. Potentially, you can fetch multiple instructions at a time, which would be a super-scalar architecture.

Why RISC-V architecture has 32 registers?

load doubleword instruction below, which loads data into x8 register from memory, whose base address is present in register x23 and offset is ‘16’. The way a computer sees this instruction is through a 32-bit binary pattern.

From RISC-V architecture to Layout – Coming Soon

A high-level program, like swap.c as shown below is first converted to an assembly language program (RISC-V in below example) using compiler. This assembly language is converted to binary machine language program using an assembler. This level of abstraction of your application using high-level programming languages like C, C++, Java or Visual Basic, proves to be a great idea to improve design

Tag Archives: instruction set architecture

SiFive RISCV Symposium Day 1 – Blockbuster opening at Hyderabad

Can you approve my floorplan?

RISC-V waterfall diagram and hazards

Why RISC-V architecture has 32 registers?

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