Snes9x v1.56.2

SFC/SNES模擬器 Snes9x 發布新版，更新如下 :

• Fixed IRQ corner case that caused Umihara Kawase's water
  to cover the whole screen. (BearOso)
• Adjusted IRQ timing slightly. Fixes Dragon Ball Z - Super
  Butouden 2. (BearOso)
• Clear WAI when IRQLine is active. Fixes Top Gear 3000. (BearOso)
• Fix reading the wrong tile data in mosaic drawing. Gets
  rid of glitch at top of FF6 battle transitions. (BearOso)
• Break a specific opcode into cycles. Fixes Little Magic. (BearOso)
• Win32: Don't mix garbage into the last line with NTSC
  filter. (OV2)
• Win32: Allow disabling scanlines in NTSC filter. (BearOso)
• GTK+: Added an undo load state option. (BearOso)
• GTK+: Fixed compilation on big-endian systems. (OV2)
• Win32, GTK+: Added integer scaling option. (BearOso)
• GTK+, Unix: Preserve current joypad state when rewinding. (BearOso)

https://github.com/snes9xgit/snes9x/releases/tag/1.56.2