class MulPlugin extends ExecutionUnitElementSimple with MulReuse

Implement RISC-V multiplication instructions by subdividing them into partial ones. For instance, 32bits x 32 bits = a[15: 0]*b[15: 0] + a[15: 0]*b[31:16] + a[31:16]*b[15: 0] + a[31:16]*b[31:16]

This calculation is splited over multiple stages to get a good FMax on FPGA (in general)

bufferedHigh can be used to buffer the mulh instruction one extra cycle on the stage to improve the FMax at the cost of one idle cycle.

Linear Supertypes
MulReuse, ExecutionUnitElementSimple, FiberPlugin, Hostable, Area, OverridedEqualsHashCode, ValCallbackRec, ValCallback, NameableByComponent, Nameable, ContextUser, ScalaLocated, GlobalDataUser, OwnableRef, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. MulPlugin
  2. MulReuse
  3. ExecutionUnitElementSimple
  4. FiberPlugin
  5. Hostable
  6. Area
  7. OverridedEqualsHashCode
  8. ValCallbackRec
  9. ValCallback
  10. NameableByComponent
  11. Nameable
  12. ContextUser
  13. ScalaLocated
  14. GlobalDataUser
  15. OwnableRef
  16. AnyRef
  17. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new MulPlugin(layer: LaneLayer, cmdAt: Int = 0, mulAt: Int = 0, sumAt: Int = 1, sumsSpec: List[(Int, Int)] = List((44, 8), (1000, 1000)), untilOffsetS0: Int = Integer.MAX_VALUE, writebackAt: Int = 2, splitWidthA: Int = 17, splitWidthB: Int = 17, useRsUnsignedPlugin: Boolean = false, keepMulSrc: Boolean = false, bufferedHigh: Option[Boolean] = None)

Type Members

  1. class Logic extends Api with Area with PostInitCallback
    Definition Classes
    ExecutionUnitElementSimple
  2. abstract type RefOwnerType
    Definition Classes
    OwnableRef

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. val SEL: NamedType[Bool]
    Definition Classes
    ExecutionUnitElementSimple
  5. val _context: Capture
    Definition Classes
    Area
  6. def addService[T](that: T): T
    Definition Classes
    FiberPlugin
  7. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  8. def awaitBuild(): Unit
    Definition Classes
    FiberPlugin
  9. var bufferedHigh: Option[Boolean]
  10. def buildBefore(l: ⇒ Lock): Unit
    Definition Classes
    FiberPlugin
  11. var buildCount: Int
    Definition Classes
    FiberPlugin
  12. def childNamePriority: Byte
    Definition Classes
    Area
  13. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @IntrinsicCandidate()
  14. var cmdAt: Int
    Definition Classes
    MulPlugin → MulReuse
  15. def component: Component
    Definition Classes
    ContextUser
  16. def during: AnyRef { ... /* 2 definitions in type refinement */ }
    Definition Classes
    FiberPlugin
  17. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  18. def equals(obj: Any): Boolean
    Definition Classes
    OverridedEqualsHashCode → AnyRef → Any
  19. def foreachReflectableNameables(doThat: (Any) ⇒ Unit): Unit
    Definition Classes
    Nameable
  20. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  21. def getDisplayName(): String
    Definition Classes
    Nameable
  22. def getInstanceCounter: Int
    Definition Classes
    ContextUser
  23. def getMode: Byte
    Attributes
    protected
    Definition Classes
    Nameable
  24. def getName(default: String): String
    Definition Classes
    NameableByComponent → Nameable
  25. def getName(): String
    Definition Classes
    NameableByComponent → Nameable
  26. def getPartialName(): String
    Definition Classes
    Nameable
  27. def getPath(from: Component, to: Component): Seq[Component]
    Definition Classes
    NameableByComponent
  28. def getRefOwnersChain(): List[Any]
    Definition Classes
    OwnableRef
  29. def getScalaLocationLong: String
    Definition Classes
    ScalaLocated
  30. def getScalaLocationShort: String
    Definition Classes
    ScalaLocated
  31. def getScalaTrace(): Throwable
    Definition Classes
    ScalaLocated
  32. val globalData: GlobalData
    Definition Classes
    GlobalDataUser
  33. def hashCode(): Int
    Definition Classes
    OverridedEqualsHashCode → AnyRef → Any
  34. var host: PluginHost
    Definition Classes
    FiberPlugin
  35. val hostLock: Lock
    Definition Classes
    FiberPlugin
  36. def inject(src1: Bits, src2: Bits): Unit
    Definition Classes
    MulPlugin → MulReuse
  37. val injectApi: Area { ... /* 6 definitions in type refinement */ }
  38. def injectWidth(a: Int, b: Int, result: Int): Unit
    Definition Classes
    MulPlugin → MulReuse
  39. def isCompletelyUnnamed: Boolean
    Definition Classes
    Nameable
  40. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  41. final def isNamed: Boolean
    Definition Classes
    Nameable
  42. def isPriorityApplicable(namePriority: Byte): Boolean
    Definition Classes
    Nameable
  43. def isUnnamed: Boolean
    Definition Classes
    NameableByComponent → Nameable
  44. var keepMulSrc: Boolean
  45. val layer: LaneLayer
  46. val lockables: LinkedHashSet[() ⇒ Lock]
    Definition Classes
    FiberPlugin
  47. val logic: Handle[Logic { ... /* 12 definitions in type refinement */ }]
  48. var mulAt: Int
  49. val mulLock: Retainer
    Definition Classes
    MulReuse
  50. val name: String
    Definition Classes
    Nameable
  51. val nameableRef: Nameable
    Attributes
    protected
    Definition Classes
    Nameable
    Annotations
    @DontName()
  52. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  53. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  54. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  55. def overrideLocalName(name: String): MulPlugin.this.type
    Definition Classes
    Nameable
  56. val parentScope: ScopeStatement
    Definition Classes
    ContextUser
  57. var pluginEnabled: Boolean
    Definition Classes
    FiberPlugin
  58. val refOwner: RefOwnerType
    Definition Classes
    OwnableRef
    Annotations
    @DontName()
  59. def reflectNames(): Unit
    Definition Classes
    Nameable
  60. def retains(head: Any, tail: Any*): RetainerGroup
    Definition Classes
    FiberPlugin
  61. def retains(that: Seq[Any]): RetainerGroup
    Definition Classes
    FiberPlugin
  62. def rework[T](body: ⇒ T): T
    Definition Classes
    Area
  63. def rsp: Bits
    Definition Classes
    MulPlugin → MulReuse
  64. def rspAt: Int
    Definition Classes
    MulPlugin → MulReuse
  65. val scalaTrace: Throwable
    Definition Classes
    ScalaLocated
  66. def setCompositeName(nameable: Nameable, postfix: String, namePriority: Byte): MulPlugin.this.type
    Definition Classes
    Nameable
  67. def setCompositeName(nameable: Nameable, postfix: String, weak: Boolean): MulPlugin.this.type
    Definition Classes
    Nameable
  68. def setCompositeName(nameable: Nameable, postfix: String): MulPlugin.this.type
    Definition Classes
    Nameable
  69. def setCompositeName(nameable: Nameable, namePriority: Byte): MulPlugin.this.type
    Definition Classes
    Nameable
  70. def setCompositeName(nameable: Nameable, weak: Boolean): MulPlugin.this.type
    Definition Classes
    Nameable
  71. def setCompositeName(nameable: Nameable): MulPlugin.this.type
    Definition Classes
    Nameable
  72. def setHost(h: PluginHost): Unit
    Definition Classes
    FiberPlugin → Hostable
  73. def setLambdaName(isNameBody: ⇒ Boolean)(nameGen: ⇒ String): MulPlugin.this.type
    Definition Classes
    Nameable
  74. def setName(name: String, namePriority: Byte): MulPlugin.this.type
    Definition Classes
    Nameable
  75. def setName(name: String, weak: Boolean): MulPlugin.this.type
    Definition Classes
    Nameable
  76. def setName(name: String): MulPlugin.this.type
    Definition Classes
    Nameable
  77. def setNameAsWeak(): MulPlugin.this.type
    Definition Classes
    Nameable
  78. def setPartialName(name: String, namePriority: Byte, owner: Any): MulPlugin.this.type
    Definition Classes
    Nameable
  79. def setPartialName(name: String, namePriority: Byte): MulPlugin.this.type
    Definition Classes
    Nameable
  80. def setPartialName(name: String, weak: Boolean): MulPlugin.this.type
    Definition Classes
    Nameable
  81. def setPartialName(owner: Nameable, name: String, namePriority: Byte): MulPlugin.this.type
    Definition Classes
    Nameable
  82. def setPartialName(owner: Nameable, name: String, weak: Boolean): MulPlugin.this.type
    Definition Classes
    Nameable
  83. def setPartialName(name: String): MulPlugin.this.type
    Definition Classes
    Nameable
  84. def setPartialName(owner: Nameable, name: String): MulPlugin.this.type
    Definition Classes
    Nameable
  85. def setPartialName(owner: Nameable): MulPlugin.this.type
    Definition Classes
    Nameable
  86. def setRefOwner(that: Any): Unit
    Definition Classes
    OwnableRef
  87. def setScalaLocated(source: ScalaLocated): MulPlugin.this.type
    Definition Classes
    ScalaLocated
  88. def setWeakName(name: String): MulPlugin.this.type
    Definition Classes
    Nameable
  89. def setupRetain(l: ⇒ Lock): Unit
    Definition Classes
    FiberPlugin
  90. var splitWidthA: Int
  91. var splitWidthB: Int
  92. val subservices: ArrayBuffer[Any]
    Definition Classes
    FiberPlugin
  93. var sumAt: Int
  94. var sumsSpec: List[(Int, Int)]
  95. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  96. def toString(): String
    Definition Classes
    Area → Nameable → AnyRef → Any
  97. def unsetName(): MulPlugin.this.type
    Definition Classes
    Nameable
  98. var untilOffsetS0: Int
  99. var useRsUnsignedPlugin: Boolean
  100. def valCallback[T](ref: T, name: String): T
    Definition Classes
    ValCallbackRec → ValCallback
  101. def valCallbackOn(ref: Any, name: String, refs: Set[Any]): Unit
    Definition Classes
    ValCallbackRec
  102. def valCallbackRec(obj: Any, name: String): Unit
    Definition Classes
    Area → ValCallbackRec
  103. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  104. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  105. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  106. def withPrefix(prefix: String): FiberPlugin
    Definition Classes
    FiberPlugin
  107. var writebackAt: Int

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated
    Deprecated

Inherited from MulReuse

Inherited from ExecutionUnitElementSimple

Inherited from FiberPlugin

Inherited from Hostable

Inherited from Area

Inherited from OverridedEqualsHashCode

Inherited from ValCallbackRec

Inherited from ValCallback

Inherited from NameableByComponent

Inherited from Nameable

Inherited from ContextUser

Inherited from ScalaLocated

Inherited from GlobalDataUser

Inherited from OwnableRef

Inherited from AnyRef

Inherited from Any

Ungrouped