SpritesMind.Net

Then it should work correctly. How does the picture you get differ from what you intended?

What is the value of SR?

There is a bug in the YM2612 debugger window. The Octave field is displayed incorrectly.

Outrun has a static field which is line scrolled to give the appearance of a curving road. There are two roads, one on each layer. The moving horizontal stripes in the road are displayed by changing the palette, to visualize the movement.

Just go into project settings, select All Configurations, and navigate to Configuration Properties, Linker, Input. Set "Ignore All Default Libraries" to Yes. Then select the Advanced heading and enter "DllMain" in the Entry Point field. Here is the import library for an older version of the Visual C...

I have been setting SL/RR to FF, then issuing a key off, but here are some various procedures from other games. Sonic 1 - Key off all channels, set all TL registers to 7F Sonic 2 - Key off all channels, set all registers to FF (30 through 8F) Sonic & Knuckles, Sonic 3, Castle of Illusion, World of I...

You don't have to disable the output, but you should set SL/RR to FF on all operators. I am doing this right before the beginning of a note as well, so that the attack phase starts from the beginning.

A technique I sometimes use is to load a recording of the intrument up in a frequency analyzer, and look for groups of evenly spaced lines around a central line. Then, set an operator to the middle frequency and another with a frequency equal to the spacing, and let the second modulate the first, an...

In Notepad, you could edit the file using the Terminal font (which uses the OEM/DOS character set) and select the ANSI encoding when saving. I don't know how it is in Notepad++.

No, just use the value as it is: FD * 12500000 / 786432.
$107A then becomes 67043.3 Hz.

I might make a quick plugin later to auto-detect jump tables used with sequences like:
move.l table(pc,dn.w),dn.w
jmp.l table(pc,dn.w)

It might save some time spent manually defining them.

It was using a negative value as a function table index, so I found out, using Gens' instruction logging feature, that the value was coming from that DIVU instruction, and that it was overflowing, so that the old value in the register was used, without N being set. Since there was a BMI afterwards, ...

DIVU doesn't set the N flag correctly when there is an overflow. The manual doesn't tell how it should be set, so someone has to test it on a real Mega Drive. I found that putting $6D00 at location $EDEA fixes the problem. I don't know what to do about the messed up textures in the first room, though.

The VDP address autoincrements by the amount set in register 15. So, you only need to set the address once.

On most Mega Drive sound systems, including the one just mentioned, the digitized samples sound way too broken. This was not so much of a problem in Sonic 1 and Phantasy Star IV, because the main sound engine was implemented on the 68000, with the Z80 dedicated to digitized samples, but this method ...