The basic idea behind netplay is that all players run the same emulation, and inputs are synced across them. It is possible to boot into the firmware and use the settings menu there, but melonDS ignores writes to the RTC date/time registers, so it just reverts back to the host system time. melonDS offers no UI for setting its own time. Currently, the only way to do that is to change your computer's time. While it's good enough for the most basic purposes, it comes with a number of downsides.įor example, we've had several requests from end users about changing the time inside melonDS. Basically, all it does is return the current system time from the host.
melonDS has had some RTC emulation since the early days, because it was a requirement to get the firmware to boot, but since then, that RTC emulation has been pretty much barebones. The DS uses a RTC chip to keep track of the current date and time. Two main things this post will talk about. Perhaps not very useful, but a nice touch regardless.Ĥ comments (last by keisui) | Post a comment
This means that for example, you can boot the DS firmware and change the time from there, and melonDS's date and time setting will reflect that. I was also able to add support for writing to the date/time registers. In 12-hour mode, the register goes from 0 to 11, and the AM/PM flag needs to be set properly for things to function. In 24-hour mode, the register goes from 0 to 23, and the AM/PM flag is automatically based on that. It gets a bit weird, because the way this register works depends on the 12/24-hour setting in status register 1. This was also the occasion to rework the RTC emulation itself, because it was quite lacking.įor example, when returning the current time, it would simply return the current hour from 0 to 23, ignoring the AM/PM flag that is also encoded in the hour register. The point is to keep melonDS's time counting accurate from the perspective of the game. This also means that, unlike the previous behavior, if melonDS runs too slow or too fast, it will affect the passage of time for the emulated game from your perspective. Every time you launch a game, the computer's time is used as a reference to calculate the emulated DS's time, and then melonDS does its own time counting from this point. What you set is saved as an offset in seconds from your computer's time. You can change it to any date and time, or you can reset it back to your computer's date and time. MelonDS has got a fun little dialog for changing the date and time now.īasically what it does is show you the current date and time of the emulated DS. If you're running into trouble: Howto/FAQ (WIP) Wifi: local multiplayer, online connectivity.Various display position/sizing/rotation modes.
Nearly complete core (CPU, video, audio.While it is still a work in progress, it has a pretty solid set of features: MelonDS aims at providing fast and accurate Nintendo DS emulation.
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