VICKY
Revision as of 23:09, 10 April 2019 by Boris Dietrich (talk | contribs)
VICKY - the graphics engine
"Vicky" is the name of the graphics engine of the C256 Foenix. It supports:
- 640x480@60FPS Max Resolution @ 256 Colors (1 Byte Per pixel)
- 32 Sprites with a resolution of 32x32 pixel
- 4 layers of tiles with a resolution of 16x16 for each tile
- Text Mode
Modes
Modes are enabled and disabled via the Vicky Master Control Register at $AF0000 via the control bits:
| Mstr_Ctrl_Text_Mode_En | = $01 | Enable the Text Mode |
| Mstr_Ctrl_Text_Overlay | = $02 | Enable the Overlay of the text mode on top of Graphic Mode (the Background Color is ignored) |
| Mstr_Ctrl_Graph_Mode_En | = $04 | Enable the Graphic Mode |
| Mstr_Ctrl_Bitmap_En | = $08 | Enable the Bitmap Module In Vicky |
| Mstr_Ctrl_TileMap_En | = $10 | Enable the Tile Module in Vicky |
| Mstr_Ctrl_Sprite_En | = $20 | Enable the Sprite Module in Vicky |
| Mstr_Ctrl_GAMMA_En | = $40 | Enable the GAMMA correction - The Analog and DVI have different color values, the GAMMA is great to correct the difference |
| Mstr_Ctrl_Disable_Vid | = $80 | This will disable the Scanning of the Video hence giving 100% bandwith to the CPU |
