Differences

This shows you the differences between two versions of the page.

--- x68000:vidcon_registers [2017/08/14 10:05] – created neko68k
+++ x68000:vidcon_registers [2019/08/27 20:45] (current) – external edit 127.0.0.1
@@ Line 4: / Line 4: @@
 |$E82000|256.w|--|Graphic palette|
 |$E82200|256.w|--|Text palette, Sprite+BG palette|
-|$E82400|1.w|R0|Screen mode|
+|$E82400|1.w|[[vidcon_registers#r0|R0]]|Screen mode|
-|$E82500|1.w|R1|Priority control|
+|$E82500|1.w|[[vidcon_registers#r1|R1]]|Priority control|
-|$E82600|1.w|R2|Layer ON/OFF control/Special priority|
+|$E82600|1.w|[[vidcon_registers#r2|R2]]|Layer ON/OFF control/Special priority|
 Graphic palette($e82000):
@@ Line 69: / Line 69: @@
 === Detail ===
+<BOOKMARK:r0>
 VC R0($e82400):
 	bit 15                    3  2 1 0
@@ Line 76: / Line 77: @@
 				    SIZ
-	bit 2	 SIZ	Real screen size
+	bit 2	 SIZ	GVRAM size
 			%0  :  512× 512 pixels
 			%1  : 1024×1024 pixels
@@ Line 85: / Line 86: @@
 			%11 : 65536 color
 	※Set the same value bits as bits 10~8 of CRTC R20.
+<BOOKMARK:r1>
 VC R1($e82500):
 	bit 15  14  13  12  11  10   9   8   7   6   5   4   3   2   1   0
@@ Line 110: / Line 111: @@
 			    …
 			%0001_1011(page 0 < page 1 < page 2 < page 3)
+<BOOKMARK:r2>
 VC R2($e82600):
 	bit 15 14  13  12  11   10  9   8   7    6   5   4   3   2   1   0
@@ Line 127: / Line 128: @@
 			%1 : Translucent mode selection
 	bit 10	B/P	%0 : Sharp reserved
-			%1 : グラフィック画面の最下位ビットで領域指定(?)
+			%1 : Enable special priority mode
 	bit  9	G/G	Translucent: Graphic screen
 	bit  8	G/T	Translucent: text/sprite screen
@@ Line 135: / Line 136: @@
 	bit  5	TON	Text screen ON(%1)/OFF(%0)
 	bit  4	GS4	Graphic screen ON(%1)/OFF(%0)
-						(When the actual screen size is 1024x1024)
+						(When the GVRAM size is 1024x1024)
 	bit  3～0 GS3～GS0
 			Graphic screen ON(%1)/OFF(%0)
-						(When the actual screen size is 512x512)
+						(When the GVRAM size is 512x512)
 	※When the graphic screen is one page, all the same values are set for