Graphics Modes: Difference between revisions
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The NerdConsole PPU is designed to support multiple graphics modes. These modes all provide some shared features with the primary difference being the number of colors supported. The number of colors available in a specific mode in turn drives the layout of tiles and palettes. | The NerdConsole PPU is designed to support multiple graphics modes. These modes all provide some shared features with the primary difference being the number of colors supported. The number of colors available in a specific mode in turn drives the layout of tiles and palettes. | ||
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{| class="wikitable" style="text-align:center;" | {| class="wikitable" style="text-align:center;" | ||
! rowspan="2" | Feature !! colspan="2" | Mono !! colspan="2" | Low !! colspan="2" | Medium !! colspan="2" | High !! colspan="2" | Super !! colspan="2" | Ultra !! colspan="2" | | ! rowspan="2" | Feature !! colspan="2" | Mono !! colspan="2" | Low !! colspan="2" | Medium !! colspan="2" | High !! colspan="2" | Super !! colspan="2" | Ultra !! colspan="2" | Ultra565 !! colspan="2" | Ultra444 !! colspan="2" | Text | ||
|- | |- | ||
! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR | ! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR !! BG !! SPR | ||
|- | |- | ||
| Mode Value | | Mode Value | ||
| Line 37: | Line 35: | ||
| colspan="2" | $05 | | colspan="2" | $05 | ||
| colspan="2" | $06 | | colspan="2" | $06 | ||
| colspan="2" | $07 | |||
| colspan="2" | $10 | | colspan="2" | $10 | ||
|- | |- | ||
| Data Format | | Data Format | ||
| S || S | |||
| S || S | | S || S | ||
| S || S | | S || S | ||
| Line 55: | Line 55: | ||
| 32 || 32 | | 32 || 32 | ||
| 40 || 40 | | 40 || 40 | ||
| 48 || 48 | |||
| 48 || 48 | | 48 || 48 | ||
| 48 || 48 | | 48 || 48 | ||
| Line 65: | Line 66: | ||
| 4 || 4 | | 4 || 4 | ||
| 5 || 5 | | 5 || 5 | ||
| 6 || 6 | |||
| 6 || 6 | | 6 || 6 | ||
| 6 || 6 | | 6 || 6 | ||
| Line 75: | Line 77: | ||
| 256 || 256 | | 256 || 256 | ||
| 204 || 204 | | 204 || 204 | ||
| 170 || 170 | |||
| 170 || 170 | | 170 || 170 | ||
| 170 || 170 | | 170 || 170 | ||
| Line 85: | Line 88: | ||
| 16 || 16 | | 16 || 16 | ||
| 32 || 32 | | 32 || 32 | ||
| 64 || 64 | |||
| 64 || 64 | | 64 || 64 | ||
| 64 || 64 | | 64 || 64 | ||
| Line 96: | Line 100: | ||
| 888 || 888 | | 888 || 888 | ||
| 888 || 888 | | 888 || 888 | ||
| 565 || 565 | |||
| 444 || 444 | | 444 || 444 | ||
| 888 || 888 | | 888 || 888 | ||
| Line 106: | Line 111: | ||
| 16 || 16 | | 16 || 16 | ||
| 8 || 8 | | 8 || 8 | ||
| 12 || 12 | |||
| 16 || 16 | | 16 || 16 | ||
| 1 || 16 | | 1 || 16 | ||
|} | |} | ||
BG = Background | SPR = Sprite | S = Standard | T = Text | 888=RGB888 | 444=RGB444 | BG = Background | SPR = Sprite | S = Standard | T = Text | 888=RGB888 | 565=RGB565 | 444=RGB444 | ||
=== Bitmap Mode Comparison === | === Bitmap Mode Comparison === | ||
| Line 165: | Line 171: | ||
| Q1 || $40 | | Q1 || $40 | ||
| 64 || 888 || 1 || 2 | | 64 || 888 || 1 || 2 | ||
| $000000 - $0001FF || | | $000000 - $0001FF || 512 | ||
|- | |- | ||
| Q2 || $41 | | Q2 || $41 | ||
Latest revision as of 23:35, 22 July 2024
The NerdConsole PPU is designed to support multiple graphics modes. These modes all provide some shared features with the primary difference being the number of colors supported. The number of colors available in a specific mode in turn drives the layout of tiles and palettes.
| Feature | Value |
|---|---|
| Pixel Resolution | 256x256 pixels |
| Screen Name Table | 32x32 tiles |
| Main Name Table | 64x64 tiles |
| Attribute Table* | 64x64 tiles |
| Max Sprites | 256 |
| Refresh Rate | 60 Hz |
* Attributes are integrated directly into the name tables.
Tile Mode Comparison
| Feature | Mono | Low | Medium | High | Super | Ultra | Ultra565 | Ultra444 | Text | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BG | SPR | BG | SPR | BG | SPR | BG | SPR | BG | SPR | BG | SPR | BG | SPR | BG | SPR | BG | SPR | |
| Mode Value | $00 | $01 | $02 | $03 | $04 | $05 | $06 | $07 | $10 | |||||||||
| Data Format | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | T | S |
| Bytes/Tile | 8 | 8 | 16 | 16 | 24 | 24 | 32 | 32 | 40 | 40 | 48 | 48 | 48 | 48 | 48 | 48 | 8 | 32 |
| Bit Layers | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 1 | 4 |
| Tile Entries | 256 | 256 | 256 | 256 | 256 | 256 | 256 | 256 | 204 | 204 | 170 | 170 | 170 | 170 | 170 | 170 | 256 | 256 |
| Tile Colors | 2 | 2 | 4 | 4 | 8 | 8 | 16 | 16 | 32 | 32 | 64 | 64 | 64 | 64 | 64 | 64 | 2 | 16 |
| RGB Format | 888 | 888 | 888 | 888 | 888 | 888 | 888 | 888 | 888 | 888 | 888 | 888 | 565 | 565 | 444 | 444 | 888 | 888 |
| Sub-Palettes | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 8 | 8 | 12 | 12 | 16 | 16 | 1 | 16 |
BG = Background | SPR = Sprite | S = Standard | T = Text | 888=RGB888 | 565=RGB565 | 444=RGB444
Bitmap Mode Comparison
| Mode | Mode Value | Pixels | Palette | BPP | Colors | Address Range | Data |
|---|---|---|---|---|---|---|---|
| F1 | $20 | 256 | 888 | 1 | 2 | $000000 - $001FFF | 8K |
| F2 | $21 | 256 | 888 | 2 | 4 | $000000 - $003FFF | 16K |
| F4 | $22 | 256 | 888 | 4 | 16 | $000000 - $007FFF | 32K |
| F8 | $23 | 256 | 888 | 8 | 256 | $000000 - $00FFFF | 64K |
| F16 | $24 | 256 | 565 | 16 | 64K | $000000 - $01FFFF | 128K |
| F24 | $25 | 256 | 888 | 24 | 16M | $000000 - $02FFFF | 192K |
| H1 | $30 | 128 | 888 | 1 | 2 | $000000 - $0007FF | 2K |
| H2 | $31 | 128 | 888 | 2 | 4 | $000000 - $000FFF | 4K |
| H4 | $32 | 128 | 888 | 4 | 16 | $000000 - $001FFF | 8K |
| H8 | $33 | 128 | 888 | 8 | 256 | $000000 - $003FFF | 16K |
| H16 | $34 | 128 | 565 | 16 | 64K | $000000 - $007FFF | 32K |
| H24 | $35 | 128 | 888 | 24 | 16M | $000000 - $00BFFF | 48K |
| Q1 | $40 | 64 | 888 | 1 | 2 | $000000 - $0001FF | 512 |
| Q2 | $41 | 64 | 888 | 2 | 4 | $000000 - $0003FF | 1K |
| Q4 | $42 | 64 | 888 | 4 | 16 | $000000 - $0007FF | 2K |
| Q8 | $43 | 64 | 888 | 8 | 256 | $000000 - $000FFF | 4K |
| Q16 | $44 | 64 | 565 | 16 | 64K | $000000 - $001FFF | 8K |
| Q24 | $45 | 64 | 888 | 24 | 16M | $000000 - $002FFF | 12K |
F=Full | H=Half | Q=Quarter | K=1024 | M=1,048,576 | 888=RGB888 | 565=RGB565
