Do proper recoding and boxing for FMA input
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@@ -5,13 +5,16 @@ import chisel3.stage.PrintFullStackTraceAnnotation
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import chisel3.util._
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import chiseltest._
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import chiseltest.simulator.VerilatorFlags
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import org.chipsalliance.cde.config.Parameters
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import freechips.rocketchip.tile
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import org.scalatest.flatspec.AnyFlatSpec
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class MulAddTest extends AnyFlatSpec with ChiselScalatestTester {
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behavior of "MulAddRecFNPipe"
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val t = tile.FType.S
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it should "do basic arithmetic" in {
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test(new MulAddRecFNPipe(2, 8, 23))
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test(new MulAddRecFNPipe(2, t.exp, t.sig))
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// .withAnnotations(Seq(WriteVcdAnnotation))
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{ c =>
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c.io.validin.poke(true.B)
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@@ -24,18 +27,48 @@ class MulAddTest extends AnyFlatSpec with ChiselScalatestTester {
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// 0: round to nearest, ties to even
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c.io.roundingMode.poke(0.U)
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c.io.detectTininess.poke(hardfloat.consts.tininess_beforeRounding)
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c.io.a.poke(0x3f800000.U/*2.0*/)
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c.io.b.poke(0x3f800000.U/*3.0*/)
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c.io.c.poke(0x00000000.U/*0.0*/)
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c.io.a.poke(0x3f800000.U)
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c.io.b.poke(0x3f800000.U)
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c.io.c.poke(0x00000000.U)
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c.clock.step()
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c.io.validin.poke(false.B)
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c.io.validout.expect(false.B)
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c.clock.step()
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c.io.validout.expect(true.B)
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c.io.out.expect(0x40c00000.U/*6.0*/)
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c.io.out.expect(0x40c00000.U)
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c.clock.step()
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c.io.validout.expect(false.B)
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}
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}
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}
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class DPUPipeTest extends AnyFlatSpec with ChiselScalatestTester {
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behavior of "DPUPipe"
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implicit val p: Parameters = Parameters.empty
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it should "pass" in {
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test(new DPUPipe)
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// .withAnnotations(Seq(WriteVcdAnnotation))
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{ fma =>
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fma.io.in.valid.poke(true.B)
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fma.io.in.bits.a.poke(0x40000000L.U(64.W))
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fma.io.in.bits.b.poke(0x40400000L.U(64.W))
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fma.io.in.bits.c.poke(0x3f800000L.U(64.W))
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fma.clock.step()
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fma.io.in.valid.poke(true.B)
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fma.io.in.bits.a.poke(0x40000000L.U(64.W))
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fma.io.in.bits.b.poke(0x3f800000L.U(64.W))
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fma.io.in.bits.c.poke(0x3f800000L.U(64.W))
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fma.clock.step()
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fma.io.in.valid.poke(false.B)
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fma.io.out.valid.expect(true.B)
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fma.io.out.bits.data.expect(0x40e00000L.U)
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fma.clock.step()
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// pipelined back-to-back response
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fma.io.out.valid.expect(true.B)
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fma.io.out.bits.data.expect(0x40400000L.U)
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}
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}
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}
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