Spatial - Programming language

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Spatial, aka Specify Parameterized Accelerators Through Inordinately Abstract Language, is an open source programming language created in 2018 by David Koeplinger.

#670on PLDB

6Years Old

Download source code:

git clone https://github.com/stanford-ppl/spatial

Homepage · Source Code

Spatial: A High Level Programming Language for FPGAs

Tags: programming language
Spatial is developed on GitHub and has 271 stars
Early development of Spatial happened in Stanford University
Spatial is written in Scala, XML, Tcl, VHDL, HTML, Make, Bourne shell, C++, Scheme, Python, Ini, C, CSV, Bash, Markdown, Tex, Diff, YAML
spatial-lang.org was registered in 2018

Example from the web:

import spatial.dsl._

@spatial object HelloSpatial extends SpatialApp {
  def main(args: Array[String]): Void = {
    // Create ArgIn
    val x = ArgIn[Int]
    
    // Set `x` to the value of the first command line argument
    setArg(x, args(0).to[Int])
    
    Accel {
      // Create 16x32 SRAM and a Register
      val s = SRAM[Int](16,32)
      val r = Reg[Int]
      
      // Loop over each element in SRAM
      Foreach(16 by 1, 32 by 1){(i,j) =>
        s(i,j) = i + j
      }
      // Store element into the register, based on the input arg
      r := s(x,x)

      // Print value of register (only shows in Scala simulation)
      println(r"Value of SRAM at (${x.value},${x.value}) is ${r.value}")
    }

  }
}

Language features

Feature	Supported	Example	Token
Comments	✓	// A comment
Line Comments	✓	// A comment	//
Semantic Indentation	X