From ppu address get fine y[yyy] after query tile in current position pixel. <b>PPU address:</b> <pre> yyy .. ..... ..... ||| +++----------------

Because the envelope loop and length counter disable flags are mapped to the same bit, the length counter can't be used while the envelope is in loop

When {@link cn.navclub.nes4j.bin.NES} instance stop call

Byte transform binary string

Update timer period @param address Register address @param b Register value

This is util method,read target address memory value @param address Memory address @return Memory address value

When DragDrop event trigger will call this function and transform {@link Dragboard} object. @param board {@inheritDoc} @apiNote If {@link DragEventSe

When DragOver event trigger will call this function check drag data whether satisfy condition. @param board {@inheritDoc} @return If return {@code tr

When {@link NES} instance rpg-rom data happen change call @param buffer Change after rpg data

计算RGB-ROM大小

The shifter continuously calculates a result based on the channel's period. The channel's period (from the third and fourth registers) is first shifte

<p> When the timer outputs a clock, the following actions occur in order: </p> <li> If the silence flag is clear, the output level changes based on bi

When {@link CPU#next()} was executed before call @return If return {@code true} block current thread,otherwise do nothing.

The coarse X component of v needs to be incremented when the next tile is reached. Bits 0-4 are incremented, with overflow toggling bit 10. This means

Row 29 is the last row of tiles in a nametable. To wrap to the next nametable when incrementing coarse Y from 29, the vertical nametable is switched b

When {@link NES} wsa created call @param instance {@link NES} instance

Whether trace is enable @return If trace is enable return {@code true} otherwise {@code false}

Load test environment config @param args Program args

Register app internal event-bus

<p> <b>Lookup Table</b> </p> <p> The <a href="https://www.nesdev.org/wiki/APU_Mixe">APU mixer</a> formulas can be efficiently implemented using two lo

Batch move file to dst @param dst Move dest @param list Wait move file list @return Success move to dest file list

Data load success call this function @param data Target data

判断当前文件是INES格式还是NES_2.0格式

Prepare async execute

Read from rpg-rom @param address Target address @return rpg-rom data

<b>The low 12 bits of the attribute address are composed in the following way:</b> <pre> NN 1111 YYY XXX || |||| ||| +++-- high 3 bits of co

<b> The high bits of v are used for fine Y during rendering, and addressing nametable data only requires 12 bits, with the high 2 CHR address lines fi

<b>Memory reader</b> <p> When the sample buffer is emptied, the memory reader fills the sample buffer with the next byte from the currently playing sa

Reset NES all core component

When a sample is (re)started, the current address is set to the sample address, and bytes remaining is set to the sample length.