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Cemu 1.6.4


Cemu is a Highly experimental software to emulate Wii U applications on PC


  • Can run encrypted Wii U images (WUD) and RPX/RPL files
  • Internal resolution is 1920x1080 (if supported by game)
  • Contains basically no optimizations. Expect slow framerates and long load times.
  • Windows 7 or above (x64) (other platforms may be supported later)
  • Requires OpenGL 4.0
  • Tested on NVIDIA and AMD: Runs fine on most recent driver
  • Tested on Intel: Garbled output but runs if OpenGL version is supported


CEMU detailed changelog for 1.6.4
Patreon release date: 2016-12-12
Public release date: 2016-12-19


general: Added hotkey Shift + Print Screen to capture a screenshot in the native resolution of the game
general: Added debug option to flip output image upside-down. This is a workaround for third-party tools which do not account for OpenGL's ARB_clip_control extension


debugging: Added menu to alter priority of a thread in the PPC thread view (via right-click)


coreinit: Added API: MEMiGetFreeStartForFrmHeap(), MEMiGetFreeEndForFrmHeap(), FSAppendFileAsync()
coreinit: Fixed race condition bug in __ghsLock(), __ghsUnlock(), OSUninterruptibleSpinLock_Acquire(), OSUninterruptibleSpinLock_Release()


AX: Cemu no longer crashes if voices use invalid sample offsets
AX: Added device remix matrix support


VPAD: Fixed Left/Right stick-click mapping


CPU: Fixed recompiler crash caused by complex recursive functions


GX2: Added bicubic upscale filter option
GX2: Added missing streamout buffer specification registers to shader cache
GX2: Fixed rounding issue when updating depth range
GX2: Fixed calculation of viewport near/far values
GX2: Added 'accurateShaderMul' gameprofile option (see gameProfiles/example.ini for explanation)
GX2: Optimized some frequently used GX2/GPU7 functions


cemu emulator



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