System.init(mode="ENGINEERING")

Uncovering Black Boxes.

I'm Dulat. I build systems that are close to electrons: custom RTL CPU cores, compilers, assemblers, linkers and bare-metal tools.

Open PortfolioRead NeoCore Whitepaper
Scroll
Custom Architecture

NeoCore 16x32 CPU

My first end-to-end CPU system: a 16-bit ISA with a dual-issue, 7-stage in-order pipeline written in SystemVerilog, along with supporting infrastructure: an emulator and assembler/linker.

  • 16-bit instruction set designed from scratch
  • C/C++ emulator plus assembler/linker toolchain
  • 7-stage, in-order pipeline with dual-issue support
  • FPGA build closes on ULX3S-85F with measured 25.0388 MHz
Open NeoCore 16x32 project
NEOCORE16×32 ISA
Dual-issue
7-stage pipeline
NEOCORE-FX32-bit ISA
0.575 DMIPS/MHz
6-stage / ULX3S
Second CPU Project

NeoCore-FX CPU

My more recent NeoCore system where the software stack gets more complexity. It is a single-issue, 6-stage in-order pipeline written in SystemVerilog. FX goes tightly along with a custom LLVM backend, advanced assembler/linker support, and a newer FPGA flow.

  • SystemVerilog RTL targeting Lattice ECP5 and ULX3S-85F
  • LLVM backend, assembler, linker, and compiler wrapper work
  • Stable Dhrystone sweep at about 0.575 DMIPS/MHz
  • UART MMIO, simulation workflows, FPGA builds, and optional hardware debug support
Open NeoCore-FX project
Projects

Compiler & Toolchain Work

The software layer for NeoCore-FX: LLVM backend, assembler and linker. It is a pipeline that turns C or assembly into binary that NeoCore CPUs can run.

LLVM Backend

An out-of-tree LLVM target for NeoCore-FX that compiles C programs in LLVM IR, which are lowered to NeoCore-FX assembly through llc. Features a small backend-focused repository and clang-like wrapper.

View project

Assembler

nc-as is the assembler for the NeoCore family. It emits object files in a custom format, supports relocations, preprocessor features, and assembles output from both nc-cc and the FX LLVM backend.

View project

Linker

nc-ld is the linker. It links custom LF02 object files into flat memory images and handles address relocations. This makes it the bridge between compiler output and binaries that can run on the CPU cores.

View project

Beyond the projects

01

Robotics club president

Leading my school's robotics club and competing in FTC-style engineering environments.

02

Science Olympiad

Competition results that show technical curiosity beyond one long-running personal project.

03

Pool Guard II, swim instructor, and water-polo coach

City of San Diego Pool Guard II; I teach swim lessons and coach a recreational water polo team.

Photo / 01
Robotics club president
Photo / 02
Science Olympiad
Photo / 03
Pool Guard II, swim instructor, and water-polo coach

Recent Posts

View all