PPU memory map: Difference between revisions
From NESdev Wiki
Jump to navigationJump to search
(→Programmer memory map: no line uses more than one flag) |
(→Programmer memory map: clearer about things being the pcb's responsibility) |
||
| Line 53: | Line 53: | ||
|} | |} | ||
* C = This memory is not in the NES but on the cartridge board. It can be CHR ROM or CHR RAM. | |||
* C = | * N = Mirrored nametables, in a manner controlled by the cartridge board (see [[Mirroring]]) | ||
* N = Mirrored nametables (see [[Mirroring]]) | |||
* P = Palette mirror | * P = Palette mirror | ||
* R = Mirror of $2000-2EFF (N) | * R = Mirror of $2000-2EFF (N) | ||
Revision as of 16:38, 3 April 2010
RAM memory map
| Address range | Size | Description |
|---|---|---|
| $0000-$0FFF | $1000 | Pattern Table 0 [lower CHR RAM bank] |
| $1000-$1FFF | $1000 | Pattern Table 1 [upper CHR RAM bank] |
| $2000-$2FFF | $0F00 | Name Tables [4 banks of $400 bytes] |
| $3000-$3EFF | $0F00 | Mirrors of Name Tables |
| $3F00-$3F1F | $0020 | Palette RAM indexes [no RGB] |
| $3F20-$3FFF | $0080 | Mirrors of palette |
Programmer memory map
| Address | Size | Note | Description |
|---|---|---|---|
| $0000 | $1000 | C | Pattern Table #0 |
| $1000 | $1000 | C | Pattern Table #1 |
| $2000 | $03C0 | Name Table #0 | |
| $23C0 | $0040 | Attribute Table #0 | |
| $2400 | $03C0 | N | Name Table #1 |
| $27C0 | $0040 | N | Attribute Table #1 |
| $2800 | $03C0 | N | Name Table #2 |
| $2BC0 | $0040 | N | Attribute Table #2 |
| $2C00 | $03C0 | N | Name Table #3 |
| $2FC0 | $0040 | N | Attribute Table #3 |
| $3000 | $0F00 | R | |
| $3F00 | $0010 | Image palette #1 | |
| $3F10 | $0010 | Sprite palette #1 | |
| $3F20 | $00E0 | P | |
| $4000 | $C000 | F |
- C = This memory is not in the NES but on the cartridge board. It can be CHR ROM or CHR RAM.
- N = Mirrored nametables, in a manner controlled by the cartridge board (see Mirroring)
- P = Palette mirror
- R = Mirror of $2000-2EFF (N)
- F = Mirror of $0000-3FFF
Note: First draft of the PPU memory map. Taken nesdoc format as example
