Riwoldt
26 lines
785 B
JavaScript
26 lines
785 B
JavaScript
const hdl = `
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Hdl <: Base{
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Root := Chip
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identifier := (letter) (alnum)*
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Name := identifier
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Chip = "CHIP" Name OpenBrace ChipBody CloseBrace
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ChipBody = InList? OutList? PartList ClockedList?
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InList = "IN" PinList Semi
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OutList = "OUT" PinList Semi
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PartList = BuiltinPart | Parts
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PinList = List<PinDecl, Comma>
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PinDecl = Name PinWidth?
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PinWidth = OpenSquare decNumber CloseSquare
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BuiltinPart = "BUILTIN" Semi
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Parts = "PARTS:" Part*
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Part = Name "(" Wires ")" Semi
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Wires = List<Wire, Comma>
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Wire = WireSide Equal (WireSide | True | False)
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WireSide = Name SubBus?
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SubBus = OpenSquare decNumber subBusRest? CloseSquare
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subBusRest = ".." decNumber
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ClockedList = "CLOCKED" SimplePinList Semi
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SimplePinList = List<Name, Comma>
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}`;
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export default hdl;
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