import { Event } from 'microevent.ts';
import ControlPanelInterface from './ControlPanelInterface';
import DigitalJoystickInterface from '../io/DigitalJoystickInterface';
import Bus from './Bus';
import RngInterface from '../../tools/rng/GeneratorInterface';
declare class Pia {
    private _controlPanel;
    private _joystick0;
    private _joystick1;
    private _rng?;
    constructor(_controlPanel: ControlPanelInterface, _joystick0: DigitalJoystickInterface, _joystick1: DigitalJoystickInterface, _rng?: RngInterface);
    reset(): void;
    read(address: number): number;
    peek(address: number): number;
    write(address: number, value: number): void;
    cycle(): void;
    getDebugState(): string;
    setBus(bus: Bus): this;
    private _writeIo;
    private _writeTimer;
    private _setTimer;
    private _readIo;
    private _readTimer;
    private _peekTimer;
    private _cycleTimer;
    trap: Event<Pia.TrapPayload>;
    ram: Uint8Array;
    private _bus;
    private _timerValue;
    private _subTimer;
    private _timerDivide;
    private _interruptFlag;
    private _timerWrapped;
    private _flagSetDuringThisCycle;
}
declare namespace Pia {
    const enum Registers {
        swcha = 640,
        swacnt = 641,
        swchb = 642,
        swncnt = 643,
        intim = 644,
        instat = 645,
        tim1t = 660,
        tim8t = 661,
        tim64t = 662,
        t1024t = 663
    }
    const enum TrapReason {
        invalidRead = 0,
        invalidWrite = 1
    }
    class TrapPayload {
        reason: TrapReason;
        pia: Pia;
        message?: string;
        constructor(reason: TrapReason, pia: Pia, message?: string);
    }
}
export { Pia as default };