SpritesMind.Net

The only problem I am seeing though, is a way to get the Genesis to read the thermistor (the resistor that tells temperatures).. I got the ratings for this specific thermistor, but how can I wire it up to the Genesis controller port, to actually read it? I don't see how something varying in resista...

I might be misremembering, but doesn't /YS have something to do with the priority flag? Basically, if the current pixel is a high priority pixel it's high, and if it's a low priority pixel it's low (or vice versa). I believe the 32X uses this to properly overlay it's video with the output of the Gen...

Most VGA monitors will not sync to the 15KHz signal; however, some LCDs will (presumably because some LCDs also have TV inputs on them).

MOD, yeah, there is no documentation about the megacd boot... Does the 32x shift the mapping when turned on when in megacd mode, that would be double insane ^^? Well it might remap the cartridge port from $400000 to the 32X banked address, but unless you've got some kind of crazy cart + CD combo ga...

They're electrically compatible in the sense that the Saturn controller port and the Genesis controller port are both 7-bit bi-directional I/O ports. Unfortunately, the protocol is different so a Genesis game won't know what to do with a Saturn controller. You could support them in code you write ho...

I can give you help with the 32X CD boot process if you need it. It's different than with a 32X cartridge game and I'm not sure if there's appropriate documentation floating around for the 32X/CD combo.

How does these light guns work ? I'll pull the trigger, INT2 happens, then soft reads the gun status (if gun sees the beam, it has some signal high) then according to H and V raster pos, it determines if an target needs to be destroyed or not ? INT2 doesn't happen when you pull the trigger. INT2 ha...

Well to be fair, this probably doesn't have the cache coherency problems the 32X has. It's also considerably faster: 480 MIPS at 200MHz and has an FPU.

I don't think the bot figured it out. I think the bot ran through a suite of common tests which all failed. The owner of the bot then came along, noticed that your captcha doesn't change and modified his bot to handle your site. Alternatively the bot could just be running a dictionary attack on the ...

OPL and OPN is a different FM synth chips series. They not directly compatible, and has different set of synth abilities. Main difference: OPN always was 4-op with one osc. waveform (sine); OPL was 2-op (with 4-op modes) and selectable osc. waveforms. then shouldn't that mean that i should be able ...

i think im going to have to take up a book on 68k assembly... Well, C is an option as well. If you want to stick with assembly, I have a beginner's guide as well. See the tutorials on my Sega CD page (http://www.retrodev.com/segacd.html). They don't get into anything Genesis or Sega CD specific tho...

i don't think the intel 8086 could either, but they did have subroutines ;) I don't think subroutines are exactly what you're looking for here. A subroutine lets you make a commonly used piece of code re-usable, but it doesn't allow multiple things to occur at the same time. Anyway, in most BASIC l...

i don't think the intel 8086 could either, but they did have subroutines ;) I don't think subroutines are exactly what you're looking for here. A subroutine lets you make a commonly used piece of code re-usable, but it doesn't allow multiple things to occur at the same time. Anyway, in most BASIC l...

It's probably not padded to a sector boundary (i.e. the size isn't an integer multiple of 2048 bytes). Just add extra bytes to the end until it's a nice even multiple of 2048. That said you might be able to accomplish what you desire using SLO assuming BasiEgaXorz has some kind of command to poke va...

I seem to remember that branches are relatively expensive on the SH-2 even with the delay slot instruction. Still, 95,869 * 60 fps * 2 instructions = 11.5 MIPS which means an average of ~2 cycles per instruction. You can do better than that if you keep your branching to a minimum and avoid pipeline ...