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- [[File:Model1GenesisVDP.jpg|333px|thumb|right|The VDP in a Model 1 [[Mega Drive|Mega Drive.]]The [[VRAM]] is visible near the bottom left, and ...m VDP is in turn derived from the Texas Instruments TMS9918A. In all Model 1 Mega Drives, the VDP is a dedicated large chip on the main motherboard, as62 KB (9,790 words) - 10:31, 30 April 2015
- ...middle, sound circuitry on the right, YM2612 on the lower right on a Model 1 [[Mega Drive|Mega Drive.]]]]9 KB (1,549 words) - 11:29, 16 March 2015
- [[File:Model1MegaDriveYM2612.jpg|350px|thumb|lright|The YM2612 in a Model 1 Mega Drive. The VDP is visible near the top right, as well as the [[Zilog Z ...In general, Part 1 contains global chip control and registers for channels 1-3, whereas part 2 contains registers for channels 4-6.12 KB (1,946 words) - 11:29, 16 March 2015
- Model 1 and Model 2 Mega Drives have an expansion port for the [[Sega CD]] peripher ===Model 1===9 KB (1,467 words) - 16:19, 16 March 2015
- ...ess in it for the text "SEGA" and then loads your game's code. Early Model 1 Mega Drives do not have a [[Trademark Security System|TMSS]] - but you stil RomEndLoc: dc.l EndOfRom-1 ; ROM end9 KB (1,562 words) - 10:40, 1 September 2017
- ...or TMSS, was a feature Sega added in later revisions of the [[Mega Drive]] 1 and all [[Mega Drive]] 2 and 3 models that is an attempt at locking out unl3 KB (569 words) - 11:29, 16 March 2015
- ...fference between '1' and the '2' in 'TMS9918A' and 'TMS9928A' is that the '1' version outputs composite NTSC video, while the '2' versions (including th * '''Mode 1 (Graphic 1):''' 32×24 characters. Each 8 characters in the character set has a foregr10 KB (1,652 words) - 11:29, 16 March 2015
- As the 32X is an add-on, it can only be used in conjunction with a Model 1 or Model 2 Mega Drive. it is plugged in where the cartridge bay is and cann8 KB (1,376 words) - 11:29, 16 March 2015
- ...from $00 (loudest) to $0F (quietest). Each byte represents one tick (i.e. 1/60th of a second), and looping is possible. The start of the loop is marked7 KB (1,170 words) - 11:29, 16 March 2015
- | Note on FM channel #1 | Note on PSG channel #110 KB (1,542 words) - 11:29, 16 March 2015
- | $A10003 || $A10003 || [[315-5309#Data_Register|Data]] 1 | $A10009 || $A10009 || [[315-5309#Control_Register|Control]] 16 KB (1,008 words) - 11:29, 16 March 2015
- ...1VRAM.jpg|200px|thumb|right|The two µPD41264 graphics memories on a Model 1 [[Mega Drive]]]]2 KB (351 words) - 11:29, 16 March 2015
- {{ConsoleInfo|maker=Sega|variants=Model 1 and 2, Multi-Mega (CDX)|name=Mega CD|processor=[[Motorola 68000]] at 12 MHz ...provides could be taken advantage of using either the cart boot mode (Mode 1) or the CD boot mode (Mode 2), allowing developers two methods to utilize t7 KB (1,124 words) - 11:29, 16 March 2015
- ! 1 ...ine to read the currently pressed buttons from all three IO ports (control 1&2, EXT)7 KB (1,070 words) - 11:29, 16 March 2015
- [[File:MDPSGExample.png|320px|thumb|right|A 1 kHz square wave under ideal conditions]] | text = A 1 kHz square wave.7 KB (1,018 words) - 11:29, 16 March 2015
- ...ndwidth using QPSK modulation. The downlink signal was at a frequency of 1.1 GHz and occupied 6 MHz bandwidth using QPSK. ...el adapter allowed the customer to download the game selected in less than 1 minute. The adapter contained 4 Megabytes of [[DRAM|DRAM,]] which held game2 KB (266 words) - 11:29, 16 March 2015
- moveq #1, d3 ; Bits to shift value by subq.w #1, d0 ; Subtract and see if we're done de-compressing.4 KB (701 words) - 11:29, 16 March 2015
- | Version= 1.54 ...eatures from Sonic 2 into the game, or feel that porting things from Sonic 1 is necessary, though lots of the features exist in game.11 KB (1,859 words) - 11:29, 16 March 2015
- | $000000 || -- || 1 MBit ROM (Main only) | $000000 || -- || 1 MBit ROM (Main only)4 KB (692 words) - 11:29, 16 March 2015
- * If d7 = 1, it jumps to $002000. lsr.w #1,d7 ; Restore Index.3 KB (494 words) - 11:29, 16 March 2015
- The 315-5364 is the Bus Arbiter/68K address decoder found in later Model 1 [[Mega Drive|Mega Drives.]] In essence, it is simply an integration of the965 bytes (166 words) - 11:29, 16 March 2015
- |(An)||Address Register Indirect||4(1/0)||8(2/0) |(An)+||Address Register Indirect with post-increment||4(1/0)||8(2/0)18 KB (2,398 words) - 11:29, 16 March 2015
- ! 1 ==== MOD = 1 ====7 KB (990 words) - 11:29, 16 March 2015
- You can make your own dried tomatoes. Dry your own by slicing ripe tomatoes 1/2" thick, or cut Romas in half, lengthwise. Put the tomato on a rack and ru3 KB (599 words) - 05:08, 3 June 2015
- ...nto other foods that you enjoy. Examples of this approach include adding a 1/2 cup of white beans to your next loaf of bread or batch of cookies. This c3 KB (507 words) - 19:04, 6 June 2015
- ...eeds. Try eating a handful every day. These nutritious seeds contain about 1,200 mg of calcium and magnesium combined. Magnesium and calcium are good fo4 KB (672 words) - 12:43, 16 June 2015
- ...sesame seeds every morning. They are full of magnesium and calcium (a huge 1,200 milligrams!). Magnesium and calcium have been shown to help reduce hair3 KB (543 words) - 18:29, 18 June 2015
- ...al or sprinkle them over fresh fruit. These nutritious seeds contain about 1,200 mg of calcium and magnesium combined. Both magnesium and calcium benefi3 KB (612 words) - 18:36, 18 June 2015
- ...ese healthy seeds are full of calcium and magnesium, containing a whopping 1,200 mg. Magnesium and calcium have been shown to help reduce hair loss and4 KB (671 words) - 19:31, 18 June 2015
- ...harm can distributed with shocking rate. Small troubles turns into a large 1.3 KB (590 words) - 13:19, 19 June 2015
