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Fix MulDiveIterative plugin when RSx have hazard in the execute stage

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Charles Papon 2019-10-23 00:02:08 +02:00
parent 67028cdb48
commit bb9261773b
1 changed files with 1 additions and 1 deletions
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2
src/main/scala/vexriscv/plugin/MulDivIterativePlugin.scala
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@ -80,7 +80,7 @@ class MulDivIterativePlugin(genMul : Boolean = true,
//FrontendOK is only used for CPU configs without memory/writeback stages, were it is required to wait one extra cycle
// to let's the frontend process rs1 rs2 registers
val frontendOk = if(flushStage != execute) True else RegInit(False) setWhen(arbitration.isValid && ((if(genDiv) input(IS_DIV) else False) || (if(genMul) input(IS_MUL) else False))) clearWhen(arbitration.isMoving)
val frontendOk = if(flushStage != execute) True else RegInit(False) setWhen(arbitration.isValid && !pipeline.service(classOf[HazardService]).hazardOnExecuteRS && ((if(genDiv) input(IS_DIV) else False) || (if(genMul) input(IS_MUL) else False))) clearWhen(arbitration.isMoving)
val mul = ifGen(genMul) (if(customMul != null) customMul(rs1,rs2,memory,pipeline) else new Area{
assert(isPow2(mulUnrollFactor))