Subject: Re: [stella] Dumb newbee question From: Adam Wozniak <adam@xxxxxxxxxxxxxxxx> Date: Wed, 20 Mar 2002 09:24:33 -0800 (PST) |
Ok, so this would be more correct? while (1) { // turn everything the same color COLUP0 = COLUP1 = COLUPF = COLUBK = i++; // 3 lines vsync VSYNC |= 0x02; for (j = 0; j < 3; j++) WSYNC=1; // wait for sync VSYNC &= ~0x02; // 37 lines vertical blank VBLANK |= 0x02; for (j = 0; j < 37; j++) WSYNC=1; // wait for sync VBLANK &= ~0x02; // visible screen for (j = 0; j < 192; j++) WSYNC=1; // wait for sync // overscan area for (j = 0; j < 30; j++) WSYNC=1; // wait for sync } On Wed, 20 Mar 2002, Thomas Jentzsch wrote: > The typical 2600 NTSC screen consists out of 4 parts: > 1. vertical sync: 3 lines (or more) > 2. vertical blank area: 37 lines (that one is missing) > 3. visisble screen: 192 lines > 4. overscan: 30 lines > ---------------------- > total: 262 lines -- adam@xxxxxxxxxxxxxxxx http://cuddlepuddle.org/~adam/pgp.txt ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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