Difference between revisions of "VICKY"
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Modes are enabled and disabled via the Vicky Master Control Register at $AF0000 via the control bits: | 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_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_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_Graph_Mode_En = $04 ::Enable the Graphic Mode |
| − | *Mstr_Ctrl_Bitmap_En = $08 Enable the Bitmap Module In Vicky | + | *Mstr_Ctrl_Bitmap_En = $08 ::Enable the Bitmap Module In Vicky |
| − | *Mstr_Ctrl_TileMap_En = $10 Enable the Tile 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_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_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 | + | *Mstr_Ctrl_Disable_Vid = $80 ::This will disable the Scanning of the Video hence giving 100% bandwith to the CPU |
Revision as of 23:05, 10 April 2019
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
