135 lines
4 KiB
TypeScript
135 lines
4 KiB
TypeScript
/**
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* @file Specific definitions of the event handlers (CPU & UI) used within this program
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* @copyright Alexander Bass 2024
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* @license GPL-3.0
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*/
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import { EventHandler } from "./eventHandler";
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import { Instruction, ParameterType } from "./instructionSet";
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import { u2, u3, u8 } from "./num";
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//
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// CPU Event Handler Definition
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//
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export enum CpuEvent {
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MemoryChanged,
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RegisterChanged,
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ProgramCounterChanged,
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InstructionParseBegin,
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InstructionParseEnd,
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ParameterParsed,
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InvalidParameterParsed,
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InvalidInstructionParsed,
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InstructionExecuted,
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Cycle,
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Print,
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Reset,
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SoftReset,
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Halt,
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MemoryAccessed,
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SwitchBank,
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SetFlagCarry,
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SetVramBank,
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}
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type VoidDataCpuEventList =
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| CpuEvent.Halt
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| CpuEvent.Reset
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| CpuEvent.SoftReset
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| CpuEvent.Cycle
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| CpuEvent.InstructionParseEnd;
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interface CpuEventMap {
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[CpuEvent.MemoryChanged]: { address: u8; bank: u2; value: u8 };
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[CpuEvent.MemoryAccessed]: { address: u8; bank: u2; value: u8 };
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[CpuEvent.RegisterChanged]: { register_no: u3; value: u8 };
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[CpuEvent.ProgramCounterChanged]: { counter: u8 };
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[CpuEvent.InstructionParseBegin]: { pos: u8; code: u8; instr: Instruction };
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[CpuEvent.ParameterParsed]: { pos: u8; code: u8; param: ParameterType };
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[CpuEvent.InvalidParameterParsed]: { pos: u8; code: u8; param: ParameterType };
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[CpuEvent.InvalidInstructionParsed]: { pos: u8; code: u8 };
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[CpuEvent.InstructionExecuted]: { instr: Instruction };
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[CpuEvent.SwitchBank]: { bank: u2 };
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[CpuEvent.SetVramBank]: { bank: u2 };
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[CpuEvent.Print]: string;
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[CpuEvent.SetFlagCarry]: boolean;
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}
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export interface CpuEventHandler extends EventHandler<CpuEvent> {
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listen<E extends VoidDataCpuEventList>(type: E, listener: () => void): void;
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dispatch<E extends VoidDataCpuEventList>(type: E): void;
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listen<E extends keyof CpuEventMap>(type: E, listener: (ev: CpuEventMap[E]) => void): void;
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dispatch<E extends keyof CpuEventMap>(type: E, data: CpuEventMap[E]): void;
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}
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interface CpuEventHandlerConstructor {
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new (): CpuEventHandler;
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}
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export const CpuEventHandler = EventHandler<CpuEvent> as CpuEventHandlerConstructor;
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//
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// Ui -> CPU Signaler definition
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//
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export enum UiCpuSignal {
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RequestCpuCycle,
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RequestMemoryChange,
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RequestRegisterChange,
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RequestCpuReset,
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RequestCpuSoftReset,
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RequestMemoryDump,
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RequestProgramCounterChange,
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}
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type VoidDataUiCpuSignalList = UiCpuSignal.RequestCpuReset | UiCpuSignal.RequestCpuSoftReset;
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interface UiCpuSignalMap {
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[UiCpuSignal.RequestCpuCycle]: number;
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[UiCpuSignal.RequestMemoryChange]: { address: u8; bank: u2; value: u8 };
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[UiCpuSignal.RequestRegisterChange]: { register_no: u3; value: u8 };
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[UiCpuSignal.RequestProgramCounterChange]: { address: u8 };
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[UiCpuSignal.RequestMemoryDump]: (memory: [Uint8Array, Uint8Array, Uint8Array, Uint8Array]) => void;
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}
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export interface UiCpuSignalHandler extends EventHandler<UiCpuSignal> {
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listen<E extends VoidDataUiCpuSignalList>(type: E, listener: () => void): void;
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dispatch<E extends VoidDataUiCpuSignalList>(type: E): void;
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listen<E extends keyof UiCpuSignalMap>(type: E, listener: (ev: UiCpuSignalMap[E]) => void): void;
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dispatch<E extends keyof UiCpuSignalMap>(type: E, data: UiCpuSignalMap[E]): void;
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}
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interface UICpuSignalHandlerConstructor {
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new (): UiCpuSignalHandler;
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}
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export const UiCpuSignalHandler = EventHandler<UiCpuSignal> as UICpuSignalHandlerConstructor;
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//
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// Ui Event Handler Definition
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//
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export enum UiEvent {
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EditOn,
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EditOff,
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ChangeViewBank,
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}
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interface UiEventMap {
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[UiEvent.ChangeViewBank]: { bank: u2 };
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}
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type VoidDataUiEventList = UiEvent.EditOn | UiEvent.EditOff;
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export interface UiEventHandler extends EventHandler<UiEvent> {
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listen<E extends keyof UiEventMap>(type: E, listener: (ev: UiEventMap[E]) => void): void;
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dispatch<E extends keyof UiEventMap>(type: E, data: UiEventMap[E]): void;
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listen<E extends VoidDataUiEventList>(type: E, listener: () => void): void;
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dispatch<E extends VoidDataUiEventList>(type: E): void;
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}
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interface UiEventHandlerConstructor {
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new (): UiEventHandler;
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}
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export const UiEventHandler = EventHandler<UiEvent> as UiEventHandlerConstructor;
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