TempleOSCD_140715.ISO

Demo/Lectures/ScreenMemory.CPP

@@ -7,8 +7,6 @@ U0 PlotXY(I64 x,I64 y)
   LBts(VGA_GRAPHIC_MEM_BASE,y*GR_WIDTH+x^7);
 }
 
-
-
 U0 Main()
 {
   I64 i;
@@ -33,8 +31,7 @@ U0 Main()
   OutU8(VGA_SC_DATA,BLUE);
   for (i=0;i<200;i++)
     PlotXY(200-i,i);
-/*
-If you want a mixed color select multiple planes
+/*If you want a mixed color select multiple planes
 but you have to be sure the unselected planes
 are zero, so select them and make them zero.
 You can't do reads on VGA memory, by the way.
@@ -44,9 +41,9 @@ That means no read-modify-writes, too.
 
   Preempt(old_preempt);
 
-//TempleOS has a 4 plane memory duplicate of the screen, $LK,"gr_screen_image",A="MN:gr_screen_image"$,
+//TempleOS has a 4 plane memory duplicate of the screen, $LK,"gr.screen_image",A="MN:CGrGlbls"$,
 //and only writes actual changes.  See $LK,"GrUpdateVGAGraphics",A="MN:GrUpdateVGAGraphics"$().
-//<CTRL-ALT-F> will flush screen VGA cache.
+//<CTRL-ALT-f> will flush screen VGA cache.
   VGAFlush;
 }