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x68000:video_ram_basics [2017/08/14 15:27] – neko68kx68000:video_ram_basics [2019/08/27 20:45] (current) – external edit 127.0.0.1
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  ADR = $c00000＋Y×1024＋X×2  ADR = $c00000＋Y×1024＋X×2
- BIT = P×8 ～ P×8＋7 of 8 bits+ BIT = P×8 ～ P×8＋7 for 8 bits
  
 **Real screen 512×512 pixels、16 colors** **Real screen 512×512 pixels、16 colors**
Line 39: Line 39:
  
  ADR = $c00000＋Y×1024＋X×2  ADR = $c00000＋Y×1024＋X×2
- BIT = P×4 ～ P×4＋3 of 4 bits+ BIT = P×4 ～ P×4＋3 for 4 bits
  
 **Real screen 1024×1024 pixels、16 colors:** **Real screen 1024×1024 pixels、16 colors:**
Line 48: Line 48:
  ADR = $c00000＋(Y＆511)×1024＋(X＆511)×2  ADR = $c00000＋(Y＆511)×1024＋(X＆511)×2
  BIT = (Y≧512)×8＋(X≧512)×4 ～  BIT = (Y≧512)×8＋(X≧512)×4 ～
-       (Y≧512)×8＋(X≧512)×4＋3 of 4 bits   +       (Y≧512)×8＋(X≧512)×4＋3 for 4 bits   
  
 ===== Text VRAM ===== ===== Text VRAM =====
x68000/video_ram_basics.txt · Last modified: 2019/08/27 20:45 by 127.0.0.1