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fix CRITICAL overflow and underflow issue in PE.scala #315

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fix CRITICAL overflow and underflow issue in PE.scala #315

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6 changes: 3 additions & 3 deletions src/main/scala/gemmini/PE.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -11,12 +11,12 @@ class PEControl[T <: Data : Arithmetic](accType: T) extends Bundle {

}

class MacUnit[T <: Data](inputType: T, cType: T, dType: T) (implicit ev: Arithmetic[T]) extends Module {
class MacUnit[T <: Data](inputType: T, dType: T) (implicit ev: Arithmetic[T]) extends Module {
import ev._
val io = IO(new Bundle {
val in_a = Input(inputType)
val in_b = Input(inputType)
val in_c = Input(cType)
val in_c = Input(dType)
val out_d = Output(dType)
})

Expand Down Expand Up @@ -61,7 +61,7 @@ class PE[T <: Data](inputType: T, outputType: T, accType: T, df: Dataflow.Value,
// elaboration/synthesis tools often fail to consolidate and de-duplicate
// MAC units. To force mac circuitry to be re-used, we create a "mac_unit"
// module here which just performs a single MAC operation
val mac_unit = Module(new MacUnit(inputType, cType, outputType))
val mac_unit = Module(new MacUnit(inputType, outputType))

val a = io.in_a
val b = io.in_b
Expand Down