NES Programming/Memory Map
CPU Memory Map
| Address |
Size |
Description |
|---|
| $0000 |
$800 |
2KB of work RAM |
| $0800 |
$800 |
Mirror of $000-$7FF |
| $1000 |
$800 |
Mirror of $000-$7FF |
| $1800 |
$800 |
Mirror of $000-$7FF |
| $2000 |
8 |
PPU Ctrl Registers |
| $2008 |
$1FF8 |
*Mirror of $2000-$2008 |
| $4000 |
$20 |
Registers (Mostly APU) |
| $4020 |
$1FDF |
Cartridge Expansion ROM |
| $6000 |
$2000 |
SRAM |
| $8000 |
$4000 |
PRG-ROM |
| $C000 |
$4000 |
PRG-ROM |
* Mirrored 1023 times, not including $2000 - $2008.
PPU Memory Map
| Address |
Size |
Description |
|---|
| $0000 |
$1000 |
Pattern Table 0 |
| $1000 |
$1000 |
Pattern Table 1 |
| $2000 |
$3C0 |
Name Table 0 |
| $23C0 |
$40 |
Attribute Table 0 |
| $2400 |
$3C0 |
Name Table 1 |
| $27C0 |
$40 |
Attribute Table 1 |
| $2800 |
$3C0 |
Name Table 2 |
| $2BC0 |
$40 |
Attribute Table 2 |
| $2C00 |
$3C0 |
Name Table 3 |
| $2FC0 |
$40 |
Attribute Table 3 |
| $3000 |
$F00 |
Mirror of 2000h-2EFFh |
| $3F00 |
$10 |
BG Palette |
| $3F10 |
$10 |
Sprite Palette |
| $3F20 |
$E0 |
Mirror of 3F00h-3F1Fh |
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Last modified on 16 July 2010, at 20:43