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Questions tagged [sega]

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8 votes
3 answers
787 views

Did the Sega Saturn support homogeneous transformations for graphics or only affine transformations?

Warning: My question contains some assumptions and mumbo jumbo. I attempt to learn how this stuff works and its correct terminology. And though I've implemented some of it (not all) from scratch over ...
hippietrail's user avatar
  • 6,654
5 votes
1 answer
225 views

Sega Saturn HD404920 microcontroller SMPC details

Does anyone have any details of the Sega Saturn's HD404920 microcontroller, which serves as the "System Manager & Peripheral Control" (SMPC)? A datasheet, pinout, extracted ROM code... ...
user's user avatar
  • 15.2k
3 votes
0 answers
287 views

Did any Dreamcast VMUs/memory cards have more than 200 blocks?

Dreamcast VMUs can store 128k in 200 "blocks". Third party memory cards increased the storage by having multiple virtual cards, each with 200 blocks. With some hacking it is possible to free ...
user's user avatar
  • 15.2k
1 vote
1 answer
337 views

How does RETN return from NMI on the Z80 in the event of nested NMI?

I was trying to learn how the Sega Master System works. The NMI occurs when the pause button on the console is pressed. So I wrote an NMI handler that makes a beep when the NMI occurs, then waits for ...
puppydrum64's user avatar
  • 1,638
9 votes
2 answers
470 views

Does "Heart of the Alien" use the same game engine as "Another World"?

Another World is a classical game originally for Amiga and Atari ST and subsequently reimplemented for many retro and modern platforms. As described by Fabien Sanglard the game is implemented in ...
bobeff's user avatar
  • 563
3 votes
1 answer
364 views

Did Tomb Raider on Saturn have fewer save crystals than the PlayStation port? [closed]

I've been trying to find this out for ages. Having owned the Saturn version (which was the original release, BTW) when it was new, but also playing the PlayStation version at a cousin's house, I could'...
Britzius's user avatar
6 votes
1 answer
585 views

Did the Saturn fail because of game distribution issues?

The Sega Saturn sold only nine million units, well short of the ambition with which Sega launched it, and as it would turn out, well short of what was needed to ultimately keep the company in the ...
rwallace's user avatar
  • 61.4k
0 votes
4 answers
577 views

How did graphics processing for old 8/16bit consoles work & what are the differences between an FPU/maths co processor & a graphics card? [closed]

When looking at information on the Internet about old consoles it's rather easy to find information on CPUs like the 6502, 65816, 68000 & Z80 used in retro computers & consoles like the NES, ...
6502Assembly4NESgames's user avatar
-6 votes
1 answer
2k views

Why is Sega Saturn mysteriously missing from No-Intros.org's hash database? [closed]

https://datomatic.no-intro.org/index.php?page=download This website has the worst, most cryptic and broken interface I've ever seen in my life, but eventually, I managed to download a big archive ...
Bictor's user avatar
  • 1
5 votes
3 answers
1k views

Does the Sega Megadrive 2 have built-in protection against reverse polarity

I have a spare universal power supply with regulated voltage up to 12 volts, max 1500mA. It has replaceable tips, where you can reverse polarity. As I understand the MegaDrive 2 (European / Australian ...
Bartek Malysz's user avatar
10 votes
2 answers
2k views

What PC graphics tech outperformed Sega Dreamcast in 1999?

The Sega Dreamcast was released in 1999 (1998 in Japan) at just the time that the competition for 3D graphics on PCs was intensifying. It's my assumption that a high-end 1999 Pentium II PC with 3Dfx ...
Brian H's user avatar
  • 60.8k
15 votes
1 answer
837 views

What differentiated the Master System's Sega Card format from cartridges?

I know that the Sega Master system had two primary game formats: cartridges just like the NES and other game consoles of the time and the "Sega Card" which was a 2mm thick plastic card with contact ...
David's user avatar
  • 2,346
19 votes
3 answers
6k views

When did hardware antialiasing start being available?

An important step towards 3D gaming was the ability to scale sprites or tiles by nonintegral factors. Examples of the former from the eighties were the arcade games Pole Position, Outrun, Space ...
rwallace's user avatar
  • 61.4k
5 votes
3 answers
641 views

Do 3d consoles run OpenGL?

I am talking about the earliest days of the first generation of 3d game consoles, such as the Playstation, N64 and Sega Saturn. Now these consoles are like a pc, the ps3 (and 4?) run OpenGL, and Xbox ...
user1584421's user avatar
17 votes
2 answers
1k views

How to create a switchless multi-system 2 button Atari joystick?

All systems that use the Atari 9 pin joystick standard make use of the following pins in consistent ways, with each direction and the fire button being connected to the ground pin when pushed. 1 - up ...
Paul Humphreys's user avatar
11 votes
4 answers
3k views

8-bit console horizontal resolution

Some early consoles like the NES and the Sega Master had a horizontal screen resolution of 256. That sounds good for an 8-bit machine, until you consider that a sprite sometimes needs a slightly ...
rwallace's user avatar
  • 61.4k
3 votes
2 answers
1k views

Landstalker 2 or a "Look Like"?

Can anyone help me? Is there an Landstalker 2 or a "Look Like" on Sega Mega Drive? Perhaps an "Fan-Made" - Thing? I searched at Google - no results. But I think, in the early 90s, there was an ...
Richard 's user avatar
8 votes
1 answer
1k views

What are the major differences between the ColecoVision and the SG-1000?

According to Wikipedia, the ColecoVision and the Sega SG-1000 were almost identical. I'm curious about that "almost" part. For example, they both used the same video generator (TMS9918/28). ...
cbmeeks's user avatar
  • 8,531