3/6/2012
[WINMAIN] fix to reset timing controls when run any extra frames to fill sound buffer
[EMU/WIN32] fix to stretch offscreen buffer in both window mode and fullscreen mode
[EMU/WIN32] fix to call ReleaseDC() to release the device context
[EMU/WIN32] fix to call SelectObject() to select the old hBmp before release the DIBSection
[EMU/WIN32] fix to start play sound buffer when virtual machine is driven
[EMU/WIN32] fix to use constant threshold for joystick direction values
[EMU/WIN32] support table to convert given keycodes from winmain
[EMU/WIN32] fix to initialize d88 multi volume handler
[VM/DEVICE] add virtual function to fetch opecode
[VM/FMGEN] fix to give the advanced time with chip clock, not usec
[VM/YM2151] fix to initialize register #29 to enable only timer interrupt
[VM/YM2151] fix to update fmgen count when read/write opm registers
[VM/YM2151] fix to update fmgen count with chip clocks
[VM/YM2203] fix to update fmgen count when read/write opn(a) registers
[VM/YM2203] fix to update fmgen count with chip clocks
[VM/Z80] fix to use new fetch_op() function to fetch opecode from memory bus