From CPCWiki - THE Amstrad CPC encyclopedia!
|
|
| Line 1: |
Line 1: |
| − | Ok, a first try, please tell if this exist...
| |
| − | Also, should we use raster or maybe other terms ?
| |
| − | Concepts : Raster, split raster, Raster lines or Scanlines ?
| |
| | | | |
| − | In programation, the raster is often referred as the act to modify the setting of inks between 2 scanlines.
| |
| − |
| |
| − | This is a way to display more than the usual [[Video modes]] number of colours.
| |
| − |
| |
| − | The time between the display of 2 Scanlines by the CRTC allow the CPU to order the Gate array to modify the setting of inks.
| |
| − |
| |
| − | The screen display at 50Hz...The [[CPU]] ([[Z80]]) runs at about 4 MgHz.
| |
| − |
| |
| − | So It has enough cycles between 2 scanlines to order this.
| |
| − |
| |
| − | You can also use Split rasterto "actually" display 2 different screens, sometoimes with different Video Modes.
| |
| − |
| |
| − |
| |
| − |
| |
| − |
| |
| − | ==Links==
| |
| − |
| |
| − |
| |
| − | *[http://en.wikipedia.org/wiki/Raster Wikipedia link to Raster concepts]
| |
| − |
| |
| − | ==CPCWiki Links==
| |
| − |
| |
| − | *[[Gate Array]]
| |
| − | *[[CRTC]]
| |
| − | *[[ASIC]]
| |
| − |
| |
| − |
| |
| − | *[[Synchronising with the CRTC and display]]
| |
| − |
| |
| − |
| |
| − | *[[Programming:Simple Raster Example 1]]
| |
| − | *[[Programming:Simple Raster Example 2 (uses CPC plus features)]]
| |
| − | *[[Programming:Simple Raster Example 3 (uses CPC plus features)]]
| |
| − | *[[Programming:Simple Split Raster Example 1]]
| |
| − |
| |
| − |
| |
| − | [[Category:Graphic]][[Category:Programming]][[Category:Stub]]
| |
Revision as of 03:40, 14 October 2009
