Difference between revisions of "VICKY"

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(Modes)
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"Vicky" is the name of the graphics engine of the C256 Foenix. It supports:
 
"Vicky" is the name of the graphics engine of the C256 Foenix. It supports:
  
- 640x480@60FPS Max Resolution @ 256 Colors (1 Byte Per pixel)
+
* 640x480@60FPS Max Resolution @ 256 Colors (1 Byte Per pixel)
- 32 Sprites with a resolution of 32x32 pixel
+
* 32 Sprites with a resolution of 32x32 pixel
- 4 layers of tiles with a resolution of 16x16 for each tile
+
* 4 layers of tiles with a resolution of 16x16 for each tile
- Text Mode
+
* Text Mode
  
  
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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 23:04, 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