This is a major release with lots of code changed. Please backup your save files before updating to be safe.

Changelog

• UI: implement a 'Use integer scaling' option
• UI: allow limiting the screen scale
• UI: allow accessing the menu during fullscreen gameplay
• UI: allow setting a custom save folder
• Core: implement save compatibility with mGBA 0.10.0+
• Core: implement basic support for the mGBA logging interface
• PPU: rewrite the PPU to be mostly cycle-accurate (fixes [#241], [#230], [#229], [#208], [#141])
• PPU: implement the GREENSWAP register
• PPU: use the 6-th green channel bit during blending
• PPU: round the blending result to the nearest integer
• ARM: fix a minor timing oversight in ARM mode
• ARM: SWP and SWPB should lock the bus (no DMA interleave is possible)
• ARM: do not force-align mis-aligned PC in ARM mode
• Bus: allow the CPU to execute idle cycles in parallel to DMA
• Bus: more accurately emulate disabling the prefetch buffer
• Bus: force the first CPU access after a DMA to be non-sequential
• Bus: implement penalty for ROM code access during the last ROM prefetch cycle (fixes [#203])
• IRQ: delay IO writes by one cycle
• IRQ: delay update of the IE&IF condition for unhalting the CPU
• SIO: implement basic serial transfer timing (fixes [#282])
• APU: emulate the master enable bit
• APU: cancel a potentially pending event whan starting a channel (fixes [#278])
• Scheduler: allow for (de)serialization of events for save states

Notes

On Linux make sure SDL2, GLEW and Qt5 are installed