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Wii VC Round-to-Zero: Difference between revisions
added a picture of the original discovery
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[[File:WiiVC BitFS.png|thumb|300px|right|Stream by Switchpalacecorner, after 71.5 hours of raising in Wii Virtual Console]] | [[File:WiiVC BitFS.png|thumb|300px|right|Stream by Switchpalacecorner, after 71.5 hours of raising in Wii Virtual Console]] | ||
[[File:WiiVC BitFS 146hr.png|thumb|300px|right|After 146.5 hours (6 days 2.5 hrs)]] | [[File:WiiVC BitFS 146hr.png|thumb|300px|right|After 146.5 hours (6 days 2.5 hrs)]] | ||
[[File:Original-bitfs-raising.jpg|thumb|The original BiTFS platform raising discovery by Andru! on May 10th 2018.]] | |||
'''Wii VC Round-to-Zero''' refers to an emulation inaccuracy in the [[Virtual Console|Wii Virtual Console]] (Wii VC). When converting a double precision floating point number (a "double") to a single precision floating point number (a "float"), the N64 typically uses the round-to-nearest rounding mode. This means that if the double is not exactly equal to a float, it will round up or down to the float that is closest in value to the original number. While this behavior is accurately emulated by most emulators and the Wii U VC, the Wii VC instead uses the round-to-zero mode. This mode will always round the double up if it is negative, and round it down if it is positive. | '''Wii VC Round-to-Zero''' refers to an emulation inaccuracy in the [[Virtual Console|Wii Virtual Console]] (Wii VC). When converting a double precision floating point number (a "double") to a single precision floating point number (a "float"), the N64 typically uses the round-to-nearest rounding mode. This means that if the double is not exactly equal to a float, it will round up or down to the float that is closest in value to the original number. While this behavior is accurately emulated by most emulators and the Wii U VC, the Wii VC instead uses the round-to-zero mode. This mode will always round the double up if it is negative, and round it down if it is positive. | ||