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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
//
//===----------------------------------------------------------------------===//
// These currently only drive tracing/formatting, but could drive
// more
protocol InstructionProtocol {
var operandPC: InstructionAddress? { get }
}
protocol ProcessorProtocol {
associatedtype Input: Collection
associatedtype Instruction: InstructionProtocol
associatedtype SavePoint = ()
associatedtype Registers = ()
var cycleCount: Int { get }
var input: Input { get }
var currentPosition: Input.Index { get }
var currentPC: InstructionAddress { get }
var instructions: InstructionList<Instruction> { get }
var isAcceptState: Bool { get }
var isFailState: Bool { get }
// Provide to get call stack formatting, default empty
var callStack: Array<InstructionAddress> { get }
// Provide to get save point formatting, default empty
var savePoints: Array<SavePoint> { get }
// Provide to get register formatting, default empty
var registers: Registers { get }
}
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