src/test/scala/chiselTests/Printf.scala


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// SPDX-License-Identifier: Apache-2.0

package chiselTests

import chisel3._
import chisel3.testers.BasicTester

class SinglePrintfTester() extends BasicTester {
  val x = 254.U
  printf("x=%x", x)
  stop()
}

class ASCIIPrintfTester() extends BasicTester {
  printf((0x20 to 0x7e).map(_.toChar).mkString.replace("%", "%%"))
  stop()
}

class MultiPrintfTester() extends BasicTester {
  val x = 254.U
  val y = 255.U
  printf("x=%x y=%x", x, y)
  stop()
}

class ASCIIPrintableTester extends BasicTester {
  printf(PString((0x20 to 0x7e).map(_.toChar).mkString("")))
  stop()
}

class PrintfSpec extends ChiselFlatSpec {
  "A printf with a single argument" should "run" in {
    assertTesterPasses { new SinglePrintfTester }
  }
  "A printf with multiple arguments" should "run" in {
    assertTesterPasses { new MultiPrintfTester }
  }
  "A printf with ASCII characters 1-127" should "run" in {
    assertTesterPasses { new ASCIIPrintfTester }
  }
  "A printf with Printable ASCII characters 1-127" should "run" in {
    assertTesterPasses { new ASCIIPrintableTester }
  }
}