<pre> The <a href="https://www.nesdev.org/wiki/APU">APU</a> is composed of five channels: square 1, square 2, triangle, noise, delta modulation chann

<a href="http://www.emulator101.com/6502-addressing-modes.html">6502 address mode</a> @author <a href="https://github.com/GZYangKui">GZYangKui</a>

CPU Address mode @author <a href="https://github.com/GZYangKui">GZYangKui</a>

@author <a href="https://github.com/GZYangKui">GZYangKui</a>

@author <a href="https://github.com/GZYangKui">GZYangKui</a>

<h2> <a href="https://www.nesdev.org/wiki/INES_Mapper_003">INES Mapper 003(CNROM)</a> </h2> <b>Overview</b> <li>PRG ROM size: 16 KiB or 32 KiB</li> <

6502 cpu instance @author <a href="https://github.com/GZYangKui">GZYangKui</a>

NMI、IRQ属于外部输入硬件中断

<pre> As instructions are executed a set of processor flags are set or clear to record the results of the operation. This flags and some additional c

<pre> iNES file format An iNES file consists of the following sections, in order: Header (16 bytes) Trainer, if present (0 or 512 bytes) PRG ROM data

Abstract audio channel @param <T> Timer driver sequencer type @see cn.navclub.nes4j.bin.apu.impl.PulseChannel @see cn.navclub.nes4j.bin.apu.impl.Tria

Abstract nes system core component common function. @author <a href="https://github.com/GZYangKui">GZYangKui</a>

Cycle driver interface @author <a href="https://github.com/GZYangKui">GZYangKui</a>

Visible handle config pane. @author <a href="https://github.com/GZYangKui">GZYangKui</a>

<p> The <a href="https://www.nesdev.org/wiki/APU_DMC">DMC channel</a> contains the following: memory reader, interrupt flag, sample buffer, timer, out

<p>6502 assembly code debugger tool.</p> <b>note:</b> This may cause memory explosion. Non developers should not use this function. @author <a href="

NES instance debugger function @author <a href="https://github.com/GZYangKui">GZYangKui</a>

<li> A divider outputs a clock periodically. It contains a period reload value, P, and a counter, that starts at P. When the divider is clocked, if th

Wrap {@link Node} drag event. @author <a href="https://github.com/GZYangKui">GZYangKui</a>

<p> In a synthesizer, an envelope is the way a sound's parameter changes over time. The NES APU has an envelope generator that controls the volume in

@author <a href="https://github.com/GZYangKui">GZYangKui</a>

Custom exception dialog @author <a href="https://github.com/GZYangKui">GZYangKui</a>

Nes instance fps tracer @author <a href="https://github.com/GZYangKui">GZYangKui</a>

Simplify drag file operation.

@author <a href="https://github.com/GZYangKui">GZYangKui</a>

<p> The <b>NES APU frame counter</b> (or <b>frame sequencer</b>) generates low-frequency clocks for the channels and an optional 60 Hz interrupt. The

Visible Game wall @author <a href="https://github.com/GZYangKui">GZYangKui</a>

@author <a href="https://github.com/GZYangKui">GZYangKui</a>

A icon popup implement. @author <a href="https://github.com/GZYangKui">GZYangKui</a>

6502 instructions @author <a href="https://github.com/GZYangKui">GZYangKui</a>

Java logger delegate @author <a href="https://github.com/GZYangKui">GZYangKui</a>

<a href="https://www.nesdev.org/wiki/Standard_controller"> Standard controller</a> @author <a href="https://github.com/GZYangKui">GZYangKui</a>

Enum common log level @author <a href="https://github.com/GZYangKui">GZYangKui</a>

<p> Custom async load resource visible pane. </p> usage example: <p> <pre> If you use fxml: {@code <LoadingPane VBox.vgrow="ALWAYS" fx:id="l

Nes4j log delegate @author <a href="https://github.com/GZYangKui">GZYangKui</a>

<a href="https://www.nesdev.org/wiki/MMC1"> <h3>MMC1</h3> </a> <b>Banks</b> <pre> CPU $6000-$7FFF: 8 KB PRG RAM bank, (optional) CPU $8000-$BFFF: 16 K

@author <a href="https://github.com/GZYangKui">GZYangKui</a>

@author <a href="https://github.com/GZYangKui">GZYangKui</a>

@param <T> Message java type @author <a href="https://github.com/GZYangKui">GZYangKui</a>

@param <T> Receive message body type @author <a href="https://github.com/GZYangKui">GZYangKui</a>

NES文件类型 @author <a href="https://github.com/GZYangKui">GZYangKui</a>

<a href="https://www.nesdev.org/wiki/Category:INES_Mappers">INES Mappers</a>

<pre> bit: 14 13 12 11 10 9 8 7 6 4 3 2 1 0 ^ | | | | v v | |

@param index Memory address @param instruction 6502 instruction @param operand Memory address value @author <a href="https://github.com/GZYa

6502 open code format utils @author <a href="https://github.com/GZYangKui">GZYangKui</a>

Wrap 6502 operand @param mode Address mode @param lsb The lower byte @param msb The upper byte @author <a href="https://github.com/GZYangKui">GZYan

<a href="https://www.nesdev.org/wiki/PPU_programmer_reference">PPU document</a> @author <a href="https://github.com/GZYangKui">GZYangKui</a>

PPU控制寄存器 <pre> 7 bit 0 ---- ---- VPHB SINN |||| |||| |||| ||++- Base nametable address |||| || (0 = $2000; 1 = $2400; 2 = $2800; 3 = $2C00) ||||

<pre> Mask ($2001) > write Common name: PPUMASK Description: PPU mask register Access: write This register controls the rendering of sprites and backg

<pre> Status ($2002) < read Common name: PPUSTATUS Description: PPU status register Access: read This register reflects the state of various functions

@author <a href="https://github.com/GZYangKui">GZYangKui</a>

<p> Each of the two <b>NES APU pulse</b> (square) wave channels generate a pulse wave with variable duty. </p> <p> Each <a href="https://www.nesdev.or