c

vexiiriscv.execute.fpu

FpuUnpackerPlugin

class FpuUnpackerPlugin extends FiberPlugin

Recode the floating point number comming from the register file to get rid of subnormal numbers by extending the exponant range instead. Getting ride of subnormal helps various floating point operations, as it ensure that the range of the mantissa stay between [1.0, 2.0[

When a subnormal number come in, the pipeline will be stuck for a few cycles in order to preserve the FMax.

Linear Supertypes
FiberPlugin, Hostable, Area, OverridedEqualsHashCode, ValCallbackRec, ValCallback, NameableByComponent, Nameable, ContextUser, ScalaLocated, GlobalDataUser, OwnableRef, AnyRef, Any
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  2. By Inheritance
Inherited
  1. FpuUnpackerPlugin
  2. FiberPlugin
  3. Hostable
  4. Area
  5. OverridedEqualsHashCode
  6. ValCallbackRec
  7. ValCallback
  8. NameableByComponent
  9. Nameable
  10. ContextUser
  11. ScalaLocated
  12. GlobalDataUser
  13. OwnableRef
  14. AnyRef
  15. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new FpuUnpackerPlugin(layer: LaneLayer, ignoreSubnormal: Boolean = false, unpackAt: Int = 0, packAt: Int = 0)

Type Members

  1. abstract type RefOwnerType
    Definition Classes
    OwnableRef

Value Members

  1. val SEL_I2F: NamedType[Bool]
  2. val _context: Capture
    Definition Classes
    Area
  3. def addService[T](that: T): T
    Definition Classes
    FiberPlugin
  4. def apply(rs: RfRead): NamedType[FloatUnpacked]
  5. def awaitBuild(): Unit
    Definition Classes
    FiberPlugin
  6. def buildBefore(l: ⇒ Lock): Unit
    Definition Classes
    FiberPlugin
  7. var buildCount: Int
    Definition Classes
    FiberPlugin
  8. def childNamePriority: Byte
    Definition Classes
    Area
  9. def component: Component
    Definition Classes
    ContextUser
  10. def during: AnyRef { ... /* 2 definitions in type refinement */ }
    Definition Classes
    FiberPlugin
  11. val elaborationLock: Retainer
  12. def equals(obj: Any): Boolean
    Definition Classes
    OverridedEqualsHashCode → AnyRef → Any
  13. def foreachReflectableNameables(doThat: (Any) ⇒ Unit): Unit
    Definition Classes
    Nameable
  14. def getBadBoxing(rs: RfRead): Payload[Bool]
  15. def getDisplayName(): String
    Definition Classes
    Nameable
  16. def getInstanceCounter: Int
    Definition Classes
    ContextUser
  17. def getName(default: String): String
    Definition Classes
    NameableByComponent → Nameable
  18. def getName(): String
    Definition Classes
    NameableByComponent → Nameable
  19. def getPartialName(): String
    Definition Classes
    Nameable
  20. def getPath(from: Component, to: Component): Seq[Component]
    Definition Classes
    NameableByComponent
  21. def getRefOwnersChain(): List[Any]
    Definition Classes
    OwnableRef
  22. def getScalaLocationLong: String
    Definition Classes
    ScalaLocated
  23. def getScalaLocationShort: String
    Definition Classes
    ScalaLocated
  24. def getScalaTrace(): Throwable
    Definition Classes
    ScalaLocated
  25. def getSubnormal(rs: RfRead): Payload[Bool]
  26. val globalData: GlobalData
    Definition Classes
    GlobalDataUser
  27. def hashCode(): Int
    Definition Classes
    OverridedEqualsHashCode → AnyRef → Any
  28. var host: PluginHost
    Definition Classes
    FiberPlugin
  29. val hostLock: Lock
    Definition Classes
    FiberPlugin
  30. var ignoreSubnormal: Boolean
  31. def isCompletelyUnnamed: Boolean
    Definition Classes
    Nameable
  32. final def isNamed: Boolean
    Definition Classes
    Nameable
  33. def isPriorityApplicable(namePriority: Byte): Boolean
    Definition Classes
    Nameable
  34. def isUnnamed: Boolean
    Definition Classes
    NameableByComponent → Nameable
  35. val layer: LaneLayer
  36. val lockables: LinkedHashSet[() ⇒ Lock]
    Definition Classes
    FiberPlugin
  37. val logic: Handle[Area { ... /* 15 definitions in type refinement */ }]
  38. val name: String
    Definition Classes
    Nameable
  39. def overrideLocalName(name: String): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  40. val p: FpuUtils.type
  41. val parentScope: ScopeStatement
    Definition Classes
    ContextUser
  42. var pluginEnabled: Boolean
    Definition Classes
    FiberPlugin
  43. val refOwner: RefOwnerType
    Definition Classes
    OwnableRef
    Annotations
    @DontName()
  44. def reflectNames(): Unit
    Definition Classes
    Nameable
  45. def retains(head: Any, tail: Any*): RetainerGroup
    Definition Classes
    FiberPlugin
  46. def retains(that: Seq[Any]): RetainerGroup
    Definition Classes
    FiberPlugin
  47. def rework[T](body: ⇒ T): T
    Definition Classes
    Area
  48. val scalaTrace: Throwable
    Definition Classes
    ScalaLocated
  49. def setCompositeName(nameable: Nameable, postfix: String, namePriority: Byte): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  50. def setCompositeName(nameable: Nameable, postfix: String, weak: Boolean): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  51. def setCompositeName(nameable: Nameable, postfix: String): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  52. def setCompositeName(nameable: Nameable, namePriority: Byte): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  53. def setCompositeName(nameable: Nameable, weak: Boolean): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  54. def setCompositeName(nameable: Nameable): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  55. def setHost(h: PluginHost): Unit
    Definition Classes
    FiberPlugin → Hostable
  56. def setLambdaName(isNameBody: ⇒ Boolean)(nameGen: ⇒ String): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  57. def setName(name: String, namePriority: Byte): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  58. def setName(name: String, weak: Boolean): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  59. def setName(name: String): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  60. def setNameAsWeak(): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  61. def setPartialName(name: String, namePriority: Byte, owner: Any): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  62. def setPartialName(name: String, namePriority: Byte): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  63. def setPartialName(name: String, weak: Boolean): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  64. def setPartialName(owner: Nameable, name: String, namePriority: Byte): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  65. def setPartialName(owner: Nameable, name: String, weak: Boolean): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  66. def setPartialName(name: String): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  67. def setPartialName(owner: Nameable, name: String): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  68. def setPartialName(owner: Nameable): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  69. def setRefOwner(that: Any): Unit
    Definition Classes
    OwnableRef
  70. def setScalaLocated(source: ScalaLocated): FpuUnpackerPlugin.this.type
    Definition Classes
    ScalaLocated
  71. def setWeakName(name: String): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  72. def setupRetain(l: ⇒ Lock): Unit
    Definition Classes
    FiberPlugin
  73. val subservices: ArrayBuffer[Any]
    Definition Classes
    FiberPlugin
  74. def toString(): String
    Definition Classes
    Area → Nameable → AnyRef → Any
  75. def unpack(uop: MicroOp, rs: RfRead): LinkedHashSet[MicroOp]
  76. val unpackSpec: LinkedHashMap[RfRead, LinkedHashSet[MicroOp]]
  77. def unpackingDone(at: Int): Bool
  78. def unsetName(): FpuUnpackerPlugin.this.type
    Definition Classes
    Nameable
  79. def valCallback[T](ref: T, name: String): T
    Definition Classes
    ValCallbackRec → ValCallback
  80. def valCallbackOn(ref: Any, name: String, refs: Set[Any]): Unit
    Definition Classes
    ValCallbackRec
  81. def valCallbackRec(obj: Any, name: String): Unit
    Definition Classes
    Area → ValCallbackRec
  82. def withPrefix(prefix: String): FiberPlugin
    Definition Classes
    FiberPlugin